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Location: Limassol, Cyprus Workplace: remote Our team is developing a payment gateway for accepting funds from users on behalf of merchants, as well as sending funds from merchants to users. The system involves storing user payment data and is subject to PCI DSS compliance. It contains multiple integrations with payment systems, providers, and other gateways and processors, including 3DS. Job Responsibilities Developing new payment features and services; Processing and resolving requests from technical support and users as part of daily duties; Designing and implementing APIs (external and internal); Creating and maintaining processes in Camunda; Participating in the design and development of high-load system architectures; Supporting and enhancing existing solutions and services; Writing high-quality, test-covered code (unit tests, integration tests); Conducting code reviews; Optimizing system performance and database queries; Analyzing and resolving production incidents and bugs; Analyzing documentation from external providers, conducting quick checks, and defining epics and tasks based on Proof of Concept; Collaborating with the QA team to ensure the high quality of the delivered product; Maintaining technical documentation and writing technical specifications; Assisting in onboarding new developers and ensuring code quality; Definition and formation of technical epics — analyzing existing solutions, identifying opportunities to improve system architecture, performance, and reliability, preparing improvement proposals, and aligning them with the team lead and architect; Participation in the creation of business epics — analyzing requirements, assessing feasibility, and proposing alternative or optimized solutions based on technical expertise; collaborating with analysts and product managers to determine the best implementation approach; Preparing tasks based on approved epics, ensuring proper detailing and alignment with architectural and business requirements; Estimating task completion timelines, participating in sprint planning, and providing accurate technical time and effort estimates. Important and Challenging Tasks: Creating and developing reliable payment solutions with high security and performance levels; Processing and resolving requests from technical support and users as part of daily duties; Optimizing the performance and scalability of payment systems; Integrating complex external providers; Participating in ensuring system compliance with high-security requirements (PCI DSS and others). You’ll thrive here if you have 3+ years of commercial development experience with Kotlin; Experience with the Spring Framework; Experience in developing payment solutions (billing, payment gateways, payment processors, exchanges); Practical experience integrating with external providers; Experience designing and optimizing relational databases (MySQL); Experience with NoSQL databases (Redis); Practical experience using AI-assisted coding tools (Claude, Codex, ChatGPT, Codeium, etc.) to improve speed and quality of development; Ability to critically review AI-generated code, ensuring production-ready quality and compliance with company standards; Knowledge of Event-Driven Architecture principles and experience working with distributed messaging systems (e.g., Apache Kafka); Excellent command of core software development and design principles, test-driven development (TDD), and CI/CD processes; Strong understanding of microservice architecture. Preferred Qualifications: Experience with Camunda (creating and supporting processes); Solid understanding of PCI DSS standards, ISO 27001, and other information security methodologies; Practical experience working with AWS; Experience with Jira and GitLab CI/CD. Conditions We know that great talent deserves great conditions, so here's what you can expect when joining us: Full remote work. Competitive compensation with a service contract. Transparent performance reviews twice a year, with bonus opportunities and salary adjustments. An annual allowance that you can use for home office improvements, sports activities, equipment upgrades, and more—tailor it to what benefits you most. Investment in your development: paid language courses, access to various learning platforms, and a mindfulness benefit, including psychological support with 50% coverage. Career growth in a fast-scaling project with opportunities to influence technical decisions. A culture of recognition: our peer reward program celebrates contributions from across the team. Benefits are provided in accordance with the company’s policies and eligibility criteria. Recruitment process HR interview (40 min); Interview with hiring managers (1,5 hour); Test task; Final interview (1 hour) optional; Recommendations check; Offer.

Location: Minsk; Warsaw; Tbilisi; Chișinău Workplace: hybrid We are looking for a Senior/Lead Java Software Engineer to join our team! You will work with engineering teams across Europe and the USA on one of our flagship products – Net2Phone Cloud Contact Center, a rapidly growing cloud communications platform serving businesses worldwide. At this position you will: Take responsibility for the full software development lifecycle, from understanding business requirements through coding, deployment, and maintenance. Collaborate with business stakeholders and actively participate in product planning and sprint backlog meetings. Work on high-performing, scalable, resilient web-based applications and services. Develop and maintain technical design, architecture, and troubleshooting documentation. Demonstrate a technology-agnostic mindset and continuously explore new technologies and approaches. We want you to have: 5+ years of production experience with Java. Strong hands-on experience with Java and Spring Framework (Spring Boot, Spring Data). Strong experience with microservices architecture. Experience with CI/CD tools such as GitHub Actions, Jenkins, ArgoCD, and Maven. Proficiency with relational databases, particularly MySQL , including schema design, migrations, and query optimization. Good English level – B2 or higher. It would be a nice bonus: Experience with Google Cloud Platform (GCP). Experience with MongoDB. Experience with infrastructure-as-code and cloud provisioning tools such as CDKTF or AWS CDK. We offer you: Remote work as a B2B contractor or hybrid full-time employment in Belarus and Moldova. Really good hardware. An exciting and challenging job with talented people around. Great learning and growth opportunities. Compensation for professional training, seminars, and conferences. First-class English lessons. Additional benefits and perks for Minsk and Chisinau office employees. A few words about us: IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.  We are not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions. Net2Phone is a rapidly growing global provider of unified cloud communications solutions. It solves the problem of cost optimization for businesses in more than 50 countries, providing them with high-quality VoIP services. Net2Phone provides businesses with an integrated communications suite featuring powerful collaboration tools such as voice, messaging, chat, and unlimited domestic and international calling to 23+ countries.  The product was named ‘VoIP Supplier of the Year’ by the Telecom Consulting Group in 2018.

Location: Hong Kong, Hong Kong SAR; Singapore, Singapore Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. About the Liquidity Platform The Liquidity Platform provides cutting-edge technology that covers all aspects of crypto trading. We build low-latency connectivity to global crypto venues — across both CeFi and DeFi — strategy services for automated pricing and trading bots, high-frequency data capture and analysis, and state-of-the-art micro frontends for trading management. On top of this infrastructure, we build highly customized strategies to facilitate crypto liquidity. Our engineering teams own the full trading lifecycle, from venue connectivity and execution to strategy, data, risk, and analytics. Our risk solutions are independent of trading logic, decoupled by design, and connected to 20+ trading venues across spot, derivatives, and event-contract markets. If you are a strong technologist excited about the potential of crypto trading and fully-automated systematic trading, we should talk. About the Role We are hiring software engineers across the Liquidity Platform’s engineering teams. You will design, build, and operate the systems that price, execute, monitor, and safeguard our liquidity-providing business 24/7. You will work closely with liquidity managers, product managers, and desk developers — developing strategies, services, and infrastructure using in-house toolkits — while growing capabilities in inventory and risk management, strategic problem solving, cross-functional collaboration, and effective communication. These roles are open to Senior and Staff-level candidates; scope and title are calibrated based on experience and impact. Specializations span Delta One Systematic Trading, Cash OTC, Option Market Making, Trading Infra Service, Data Engineering and Risk & Analytics. What You’ll Be Doing Design, build, and operate scalable, fault-tolerant, low-latency trading infrastructure and microservices that handle 24/7 crypto market operations. Build and maintain connectivity to centralized exchanges, DeFi venues, and counterparties using FIX 5.0+, WebSocket, HTTP/2, and REST — handling the real-world complexities of external integrations and on-chain data. Develop and maintain core services across the trading lifecycle: strategy and execution engines, automated pricing and trading bots, order execution and position tracking, trade & position data platforms, and risk & analytics systems. Architect and optimize high-throughput order execution with sub-millisecond latency targets, and build real-time market-data pipelines aggregating order books and price feeds across multiple venues. Implement pre-trade risk controls, circuit breakers, rate limiters, position/PnL and risk calculations, automated alerting, and high-availability architecture. Implement robust monitoring, alerting, and auto-recovery so strategies remain stable, scalable, and self-healing in a 24x7 trading environment. Build trusted data models, reconciliation workflows, and data-quality controls with clear lineage, reproducibility, and documentation — delivering outputs for the trading desk, Finance, and Operations. Profile and eliminate latency hotspots using garbage-free coding and lock-free concurrency; continuously improve system performance and user experience. Collaborate with liquidity managers, product managers, desk developers, risk, finance, and operations to design, implement, and roll solutions into production. Conduct code reviews, mentor junior engineers, and uphold scalability, resiliency, maintainability, and security best practices across all development activities. What We Look For In You STEM foundation: Bachelor’s degree or above in Computer Science, Engineering, Mathematics, Physics, or a related technical discipline; a combined finance background is advantageous. Experience: Typically 3–8 years in software or data engineering (level-dependent), ideally with exposure to trading, OMS, middle/post-trade, or latency-sensitive systems. Languages: Strong proficiency in one or more of Java (17+), Rust, C++, or Python, with a focus on code quality and operational reliability. Systems: Strong understanding of high-performance, low-latency distributed systems, multi-threaded/concurrent programming, and — where relevant — JVM internals and GC behavior. Connectivity & protocols: Hands-on experience with FIX 5.0+, WebSocket, HTTP/2, and REST APIs, plus network protocol and TCP/UDP optimization. Data & messaging: Strong SQL (MySQL, PostgreSQL — schema design and performance tuning); experience with Redis and Kafka. Infrastructure: Comfortable in Linux/Unix environments; familiarity with Docker, Kubernetes, CI/CD pipelines, and cloud platforms (AWS, AliCloud, GCP) and on-premise infrastructure. Markets: Understanding of market microstructure, order lifecycle, and core trading concepts such as PnL, margin, leverage, and market risk. Mindset: Strong analytical thinking, ownership, and attention to detail; able to work effectively under pressure in a fast-paced environment; a controls mindset around data quality and reproducibility. Communication: Excellent communication and collaboration skills across business and technical teams; fluency in English required, with Chinese/Mandarin a strong plus for global, cross-functional work. Passion: Genuine interest in crypto markets, blockchain, and the broader financial industry, and a drive to keep learning new technologies. Nice to Haves Prior experience in proprietary trading, market making, quantitative research, or front-office technology at exchanges, banks, or investment institutions. Experience with execution algorithms (TWAP, VWAP, iceberg, sniper, smart order routing) and backtesting / strategy-simulation frameworks. Low-latency tooling and IPC: Aeron, Chronicle Queue, Disruptor, shared-memory messaging, Agrona Collections, Protocol Buffers, SBE. Frameworks and libraries such as Spring, Netty, and Vert.x. Modern data platforms (Spark/PySpark, Iceberg, ClickHouse, InfluxDB), workflow orchestration (Airflow, Celery), and ML tooling (MLflow, TensorFlow). Strong understanding of DeFi, blockchain, smart contracts, and crypto exchange APIs; exposure to event-contract / prediction markets. Agentic programming fluency — hands-on use of AI coding tools (e.g., Claude Code, Codex) on real production work. Risk and compliance experience; professional certifications such as CFA or FRM. Technical Environment Languages: Java 17+, Rust, Python, C++ Protocols: FIX 5.0+, WebSocket, HTTP/2, REST Stack: Spring, Netty, Aeron, Chronicle Queue, Disruptor, Kafka, Redis, etcd, MySQL, PostgreSQL, InfluxDB, ClickHouse, Iceberg, Spark Infrastructure: Linux/Unix, Docker, Kubernetes, CI/CD, AWS / AliCloud / GCP Team Specializations The Liquidity Platform comprises several engineering teams. Depending on your strengths and interests, you may join one of the following: Delta One – Systematic Trading: Build cross-venue liquidity and market-making strategies with deep market-microstructure and execution-optimization focus. Option Market Making: Build and operate automated option market-making strategies and pricing systems — managing volatility, greeks, and inventory risk while quoting continuously across crypto options venues. Cash OTC: Develop and own OTC trading strategies and their production environment, partnering closely with liquidity and product managers. Trading Infra Service: Build and maintain the core strategy engine and trading-infrastructure microservices on a distributed, enterprise-grade architecture. Deliver high-throughput, sub-millisecond order execution, market-data pipelines, and exchange connectivity. Data Engineering: Own the trade & position platform end-to-end — venue connectors, the Python + SQL data model, reconciliation, and data-quality controls. Risk & Analytics: Build a greenfield, next-generation risk platform — real-time risk monitoring, PnL/risk calculation, alerting, and circuit-breaking strategies. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! Please note that Hong Kong is a group-level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong. OKX Statement: OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Задачи: — Ведение миграции устаревших сервисов на современную архитектуру с использованием Node.js. — Владение backend-компонентами в кросс-функциональной команде для реализации end-to-end функционала. — Проектирование и реализация REST API на инфраструктуре AWS. — Мониторинг производственных сервисов для обеспечения высокой производительности, масштабируемости и надежности. — Сотрудничество с продакт-менеджерами и frontend-инженерами для выпуска качественных функций. — Использование AI-инструментов и агентных рабочих процессов для максимизации продуктивности разработки. Требования: — Свободное владение английским языком (устным и письменным). — Опыт работы с Node.js и/или Java 21+ (Spring Boot). — Практический опыт работы с AWS, Docker и Kubernetes. — Владение PostgreSQL и Elasticsearch. — Опыт работы с распределенными системами, микросервисами и межсервисным взаимодействием. — Готовность работать в офисе в Берлине не менее 80% времени. Плюсы: — Опыт работы с CI/CD пайплайнами. — Знакомство с AI-копилотами и агентами LLM. — Степень бакалавра или магистра в области компьютерных наук или смежных областях. Условия: — Визовая поддержка для международных кандидатов. — 28 дней отпуска плюс дополнительные дни за выслугу и особые случаи. — Бесплатный обед в офисе и доступ к полностью оборудованному спортзалу. — Корпоративная пенсионная программа и поддержка психического здоровья через nilo.health. — Поддержка профессионального развития и культура обратной связи. — Инициативы по устойчивому развитию через внутреннюю Green команду.

Задачи: — Ведение миграции устаревших сервисов на современную архитектуру с использованием Node.js. — Владение backend-компонентами в кросс-функциональной команде для реализации end-to-end функционала. — Проектирование и реализация REST API на инфраструктуре AWS. — Мониторинг производственных сервисов для обеспечения высокой производительности, масштабируемости и надежности. — Сотрудничество с продакт-менеджерами и frontend-инженерами для выпуска качественных функций. — Использование AI-инструментов и агентных рабочих процессов для максимизации продуктивности разработки. Требования: — Свободное владение английским языком (устным и письменным). — Опыт работы с Node.js и/или Java 21+ (Spring Boot). — Практический опыт работы с AWS, Docker и Kubernetes. — Владение PostgreSQL и Elasticsearch. — Опыт работы с распределенными системами, микросервисами и межсервисным взаимодействием. — Готовность работать в офисе в Берлине не менее 80% времени. Плюсы: — Опыт работы с CI/CD пайплайнами. — Знакомство с AI-копилотами и агентами LLM. — Степень бакалавра или магистра в области компьютерных наук или смежных областях. Условия: — Визовая поддержка для международных кандидатов. — 28 дней отпуска плюс дополнительные дни за выслугу и особые случаи. — Бесплатный обед в офисе и доступ к полностью оборудованному спортзалу. — Корпоративная пенсионная программа и поддержка психического здоровья через nilo.health. — Поддержка профессионального развития и культура обратной связи. — Инициативы по устойчивому развитию через внутреннюю Green команду.

Location: Hong Kong, Hong Kong SAR; Singapore, Singapore Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me , Do the Right Thing , and Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About The Team The Service Stability Engineering Team envisions service stability as one of the core competitive strengths of the company's products. By building end-to-end, link-level risk management capabilities, the team aims to achieve sustainable automatic identification and analysis of stability risks, transforming from "reactive governance" to "proactive governance." This approach shifts more stability-related matters forward and addresses them early, preventing issues before they arise and enhancing user experience. What You’ll Be Doing Oversee non-functional aspects of relevant business lines, closely collaborate with business units to ensure service stability. Based on data analysis, identify stability risks throughout the entire chain, detect unreasonable architectural designs in advance, uncover root causes of issues, and systematically address problems; Explore new technologies, tools, and architectural patterns, and promote the implementation of best practices in application architecture. What We Look For In You Bachelor's degree or higher in Computer Science or a related field, with over 8 years of experience in development and architecture. Proficiency in Java, hands-on experience with the Spring Cloud microservices technology stack, solid computer science fundamentals, and a grasp of Linux, storage, and network I/O principles. Possess experience in high-concurrency distributed system architecture or high-concurrency scenario component design and development, with an understanding of Java concurrency libraries. Understanding of core Middleware technologies like Nginx, Redis, ElasticSearch, Kafka, MySQL, Docker and Kubernetes. In-depth understanding of the business architecture currently managed, along with a strong methodology for architectural design. Capable of rationalizing architectural designs for new business lines and providing targeted optimization suggestions. Nice-To-Haves Proficiency in speaking, reading and writing in both English and Mandarin to collaborate effectively with global and cross-functional team members. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependents More that we love to tell you along the process! Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Требования: - базовое знание Java, SQL, HTTP/REST - опыт работы с Git - готовность учиться и разбираться в коде - наличие пет-проектов на GitHub Обязанности: - разработка backend-сервисов на Java и Spring Boot - написание тестов и работа с PostgreSQL - участие в code review и интеграциях Условия: - удаленная работа, свободный график - стажировка на реальных проектах с наставником - доступ к архитектурным решениям и инженерной культуре

Location: Amsterdam, Netherlands; Germany; Israel; London, United Kingdom; Remote - Europe; United Kingdom About Nebius: Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. The Role We're an SRE team within DevTools, looking for someone ready to help maintain and grow our systems. We run 25k builds a day in TeamCity, store 100 TB of artifacts in Artifactory, and work with a massive monorepo in GitLab — comparable in scale to what you'd find at FAANG companies. We modify GitLab and build our own TeamCity plugins to give users a product that meets their needs. We're also experimenting with AI — we have our own RAG setup and are figuring out how to operate in the age of agents. Our goal: understand users' problems and requests, define metrics that capture the problem, improve those metrics, and verify that the user's problem is actually gone. Y our responsibilities will include: Improving services based on user feedback Building fault-tolerant, self-healing architecture Finding ways to speed up our systems and reduce user friction Modifying well-known closed- and open-source solutions Supporting our users We expect you to have: A combination of SRE and SWE experience (for us that's a 50/50 split). Our code is in Java/Kotlin, Go, Python, and Ruby An understanding of what's happening under the hood in Unix-like systems and the JVM A passion for improving the user experience The ability to adapt quickly on the fly in a fast-changing environment It will be an added bonus if you have: Experience in Platform Engineering Experience operating GitLab (or another VCS) and TeamCity (or another CI system) Experience with Spring and operating Java monoliths We conduct coding interviews as part of the process. Benefits & Perks: Competitive compensation Career growth and learning opportunities Flexibility and ownership Collaborative and innovative culture Opportunity to work on impactful AI projects International environment and talented teams What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI Equal Opportunity Statement: Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law. Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. If you need accommodations during the application process, please let us know.

Задачи: — Сотрудничать с техническим лидером для проектирования новых функций и доведения их до завершения. — Разрабатывать, тестировать, деплоить и поддерживать программное обеспечение в динамичной среде. — Наставлять младших членов команды, обеспечивая качество кода через pull requests и помогая с вопросами. — Следить за последними тенденциями в технологиях и предлагать идеи на внутренних мероприятиях. — Работать в кросс-функциональной команде, поддерживая высокие технические стандарты по всему продукту. Требования: — Опыт разработки на JVM-языках и Spring Boot в крупных продуктивных системах (опыт с Kotlin будет плюсом). — Хорошее понимание микросервисной архитектуры. — Знание реляционных и нереляционных баз данных, предпочтительно PostgreSQL. — Опыт работы с современной облачной архитектурой, предпочтительно AWS. — Свободное владение английским языком. — Ориентация на результат и умение доводить задачи до конца. — Внимание к безопасности. — Мотивация писать хорошо протестированный и документированный код. — Готовность давать и принимать открытый, прямой и своевременный фидбек. Условия: — Возможность карьерного роста в одной из известных европейских компаний. — Социальные льготы: бюджет на развитие, удалённая работа, скидки на фитнес и wellness, языковые приложения, проездной. — Премиум-подписка на личный банковский счёт N26 и для друзей/семьи. — Дополнительный день отпуска за каждый год работы. — Высокая степень автономии и доступ к современным технологиям. — Работа в международной команде. — Пакет релокации с поддержкой визы для нуждающихся.

Задачи: ▫️ Оценивать устаревшие приложения полностью: архитектура, зависимости, инфраструктура, риски — с помощью AI-инструментов анализа ▫️ Определять стратегию миграции для каждого приложения с учётом характеристик, ограничений и бизнес-ценности ▫️ Выполнять полную модернизацию: обновление фреймворков, миграция зависимостей, контейнеризация, настройка CI/CD пайплайна ▫️ Развёртывать на целевых платформах — облачные сервисы или оптимизированные on-prem решения ▫️ Формировать практику модернизации: создавать шаблоны, паттерны и делиться опытом для ускорения следующих миграций ▫️ Сотрудничать с командами, владеющими устаревшими системами Требования: ▫️ Сильные знания Java и Spring (7+ лет) ▫️ Практический опыт модернизации корпоративных приложений с устаревших платформ на современные ▫️ Широкие знания инфраструктуры ▫️ Знания корпоративного middleware и инфраструктуры данных ▫️ Готовность работать с AI-инструментами (Agentic AI, LLM) ▫️ Опыт работы в крупных организациях с большими системами, управлением изменениями и требованиями соответствия ▫️ Отличное владение английским языком (письменно и устно) ▫️ Высшее образование в области компьютерных наук, программной инженерии или смежных технических областях Плюсом будет: ▫️ Опыт с другими JVM или не-JVM backend технологиями (.NET, Python, C++) ▫️ Опыт использования AI/LLM инструментов для анализа кода, миграции или масштабного рефакторинга ▫️ Опыт в финансовом секторе, рынках капитала или финтехе ▫️ Опыт развертывания Kubernetes (EKS, Helm, ArgoCD) ▫️ Знание паттернов миграции в облако (lift-and-shift, strangler fig, blue-green, миграция баз данных) ▫️ Владение корпоративными инструментами ServiceNow, Confluence, Jira Условия: ▫️ Гибкий формат работы: удалёнка из указанных стран или гибрид ▫️ Полное медицинское страхование для сотрудников в Польше и на Кипре ▫️ 50% покрытие медицинского страхования для супругов и детей в Польше и на Кипре ▫️ 24 дня оплачиваемого отпуска ▫️ 10 дней оплачиваемого больничного ▫️ 50% компенсация профессионального обучения, конференций ▫️ Поддержка при релокации в Польшу или на Кипр: билеты, аренда жилья на первый месяц, помощь с визами и разрешениями ▫️ Работа с профессиональной командой и корпоративные мероприятия

Location: Palm Springs, CA About Snap! Mobile, Inc: Founded in 2014, Snap! Mobile is the creator of Snap! Raise, the nation’s largest and top-performing digital fundraising platform for high school and youth athletics and activities. Since its founding, Snap! Raise has helped over 150,000 schools, groups, and teams raise more than $1 billion . Snap! Mobile supports schools, teams, and organizations with Snap! Mobile One, an all-in-one app designed to simplify operations and enhance community engagement. Snap! Mobile One combines the power of Snap! Raise fundraising, fan and community engagement, event scheduling, registration, website management, messaging services, money management, and spirit wear to deliver everything administrators need to succeed in one easy-to-use app. Who we're looking for A well-connected, relationship-driven professional — coaches, teachers, athletic directors, or community leaders — who thrives on opening doors and closing deals. If you love the front end of sales and have a strong local network, this role was built for you. Got a day job, a coaching gig, or a packed schedule? No problem. This is designed to work around your life. This is not a remote position. Applicants must currently reside within the assigned territory to be considered. The opportunity You'll be boots on the ground, building partnerships with schools, sports teams, programs, and community organizations in your area — on your schedule. Your focus is to prospect, connect, and close — then hand off to an Account Manager who handles everything after. No backend admin, no long-term account management. Just pure relationship-driven sales with people you likely already know. Perfect as a side hustle, a part-time gig, or a way to monetize the network you've already built. What you'll do Tap into your existing local network toidentifyand engage potential partners Conduct in-person meetings, presentations, and demos — when it works for you Close new partnerships and hand off seamlessly to your Account Manager What you bring Current residency within the assigned territory (required— non-local applicants will not be considered) Strong local community ties and existing relationships Self-starter mentality with solid communication skills Comfort in a 100% commission, performance-driven environment Reliable transportation and a valid driver's license Ability to pass a background check, including driving record What you'll earn Uncapped commission — no ceiling on your earnings, no matter how many hours you put in The details Flexible contract (1099) — make your own schedule; designed to work as a side hustle or part-time gig One-quarterinitialcommitment with opportunity to extend No base salary, benefits, or paid leave CA Residents click here for privacy policy We use E-verify to onboard new hires. Please click here to learn more.

Location: New York, NY, United States About Us Fanatics is a leading global sports platform redefining how fans connect with the teams, players and moments they love. Our businesses — Fanatics Commerce, Fanatics Collectibles, Fanatics Betting & Gaming, Fanatics Events, Fanatics Advertising, Fanatics Markets and Fanatics Studios — maximize the presence and reach for hundreds of partners globally and create a one-stop experience that allows fans to buy, bet, collect, and earn, while engaging with sports in deeper, more immersive ways. This includes licensed fan gear and lifestyle products, sportsbook and iGaming, physical and digital trading cards, live events, premium sports entertainment content, credit card offerings and more. Together, they form a powerful, integrated ecosystem — connected by the Fanatics ONE loyalty program and FanCash, the currency of sport — delivering personalized experiences to over 100 million fans worldwide. Fanatics holds partnerships with over 900 sports properties, from professional leagues and players’ associations to teams, colleges and retail partners; over 7,000 athletes and celebrities; and over 2,000 retail locations, including all Lids stores. Backed by a team of more than 22,000 employees, Fanatics is committed to relentlessly enhancing the fan experience. About the Team Launched in 2021, Fanatics Betting and Gaming is the online and retail sports betting subsidiary of Fanatics, a global digital sports platform. The Fanatics Sportsbook is available to 95% of the addressable online sports bettor market in the U.S. Fanatics Casino is currently available online in Michigan, New Jersey, Pennsylvania and West Virginia. Fanatics Betting and Gaming operates twenty-two retail sports betting locations, including the only sportsbook inside an NFL stadium at Northwest Stadium. Fanatics Betting and Gaming is headquartered in New York with offices in Denver, Leeds and Dublin. Fanatics Markets is the real-money prediction and trading app where you can invest in moments you care about. Built on a secure platform, we let users predict real-world outcomes and trade on events they actually follow - from sports and entertainment to political elections and beyond. Our mission is to redefine how fans engage with the moments and markets that matter most. We're looking for the right people to help us build the future of prediction markets. The Opportunity As a Sr Software Engineer on our Distributed Systems team, you'll be at the core of what makes Fanatics Markets work — the event-driven infrastructure that powers real-money trading at scale. This is a role for an engineer who moves fluidly between hands-on coding and architectural influence: someone who can design a system that handles massive traffic spikes during live events, then roll up their sleeves and build it. You'll work alongside some of the most experienced distributed systems engineers in the industry, owning meaningful technical decisions and directly shaping how the platform scales over the next several years. If you thrive at the intersection of high-throughput systems, low-latency design, and technical leadership — this is your seat Responsibilities Design, build, and scale distributed systems using Kotlin, Java, and Spring Boot, architecting for the traffic spikes and concurrency demands of a live real-money trading platform. Own the development and optimization of high-throughput event pipelines using Kafka, including partition strategy, consumer group design, and exactly-once processing guarantees. Build and tune low-latency data layers across Postgres, Redis, and Redis PubSub — ensuring data integrity, cache coherence, and sub-millisecond read paths under peak load. Implement and enforce resilience patterns across services — backpressure handling, circuit breaking, idempotent retry logic, and graceful degradation under failure conditions. Contribute to real-time user-facing systems, solving the fan-out problem for live market updates across tens of thousands of concurrent sessions. Partner with product and engineering leadership to align technical execution with business priorities — contributing to build vs. buy decisions and long-term platform strategy. Set and uphold engineering standards for observability, schema evolution, testing practices, and deployment patterns across the team — through code reviews, RFCs, and technical documentation. Mentor and actively develop junior and mid-level engineers, raising the technical floor of the team through pairing, design reviews, and direct feedback. Qualifications 5+ years of software engineering experience with a primary focus on distributed systems and high-concurrency production environments. Expert-level proficiency in Java or Kotlin and Spring Boot, with a strong command of modern API design — REST, gRPC, and Protobuf. Deep hands-on experience with Kafka (or Redpanda/Pub Sub) — including internal mechanics, partition strategies, consumer group rebalancing, and delivery guarantees. Proven ability to diagnose and resolve bottlenecks in asynchronous messaging systems and implement patterns like idempotency, distributed caching, and exactly-once processing. Hands-on experience with Kubernetes, Helm, Terraform, and cloud-native infrastructure on AWS. Strong instincts for production reliability — you've been on-call, triaged distributed system failures under pressure, and shipped durable fixes. Demonstrated ability to influence technical direction across teams and guide engineers through complex architectural decisions without direct authority. Track record of defining success metrics upfront — SLAs, latency budgets, throughput targets — and holding systems accountable to them in production. Preferred Experience with real-time delivery systems — WebSocket fan-out, server-sent events, or pub/sub at scale. Familiarity with financial platforms, real-time trading systems, or prediction markets. Experience in a high-growth startup environment where ownership is broad and the technical landscape evolves quickly. Depending on the role, your interview and onboarding experience may include in-person components, such as onsite interviews or Launching into Better: LIVE—a multi-day cultural immersion in New York City for full-time, non-seasonal hires. These sessions are designed to build connection and bring our culture to life, though specific travel and participation requirements will be confirmed based on your role and location. Your recruiter will provide clear guidance at each stage of the process. For information about our benefits, please visit https://benefitsatfanatics.com/ #LI-Remote #LI-AL1 Ranges will change based on country and state of residence, which are reflected in Geographical Zones defined by Fanatics Betting and Gaming. The range incorporates all of our Geographical Compensation Zones and is subject to change as the Zone associated with the actual offer is confirmed. In addition to the base and bonus, full-time employment, and more. For information about our benefits, please visit https://benefitsatfanatics.com/ Salary Range $152,000 — $200,000 USD By submitting your application, you agree to our terms of service and acknowledge you have read our Candidate Privacy Policy. Fanatics will never ask candidates for money, banking information, or other sensitive personal information as part of the interview process. If you receive a suspicious message claiming to be from Fanatics recruiting, please do not respond and report it here .

Требования: - Опыт работы в QA от 4 лет. - Опыт тестирования мобильных и веб-приложений от 4 лет. - Опыт работы с Rest API. - Опыт работы с SQL/NoSQL базами данных на уровне сложных запросов и выгрузок (join, View и др.). - Опыт покрытия новых функциональностей с помощью инструментов автотестирования на Java. - Опыт работы с интеграционным тестированием. - Опыт работы с CI/CD (Jenkins, GitlabCI). - Опыт работы с брокерами сообщений (Kafka, RabbitMQ и аналоги). - Опыт работы с мок-сервисами (Wiremock или аналоги). Опыт работы с инструментами: - SOAP UI, Postman, Jira, Confluence, Git, IntelliJ IDEA, Bitbucket. Дополнительным плюсом будет: - Опыт работы с системами на микросервисной архитектуре (Spring Cloud, Kubernetes, Openshift или аналоги). - Опыт работы с системами кэширования (Redis, Hazelcast). Условия: - 5-дневная рабочая неделя с гибким началом дня (с 8:00 до 11:00 по МСК). - Полностью удалённый формат работы. - Современные и интересные задачи на проекте.

Location: Montenegro; Slovenia; Slovakia; Moldova; Romania; Poland The position is open for a global, publicly traded AdTech market leader. The company's platforms handle over 1 trillion requests per day, operating within a highly optimized real-time cloud architecture across dozens of servers and processing terabytes of data daily. The engineering team focuses on intense performance optimization, low-latency infrastructure, asynchronous data streaming, and cutting-edge GenAI research and development. Salary: upto $5,000 USD / month. Format: Full-time. Hybrid (Budva, Montenegro) or 100% Remote globally Contract Type: B2B Contract Responsibilities Design, scale, and maintain real-time advertising bidding systems (DSPs, RTB Exchanges, and SSP platforms). Optimize backend services using Java (Spring Boot / WebFlux) and Go (Golang) to meet strict low-latency SLA/SLO targets. Build and manage data-intensive architectures utilizing high-load storage solutions (Aerospike, ClickHouse) and event-driven messaging (Apache Kafka). Participate in R&D initiatives involving GenAI, integrating Agentic AI frameworks (LangChain, LangGraph, N8N) for workflow automation and predictive analytics. Take full ownership of features end-to-end, contributing to the frontend layer (React / TypeScript) for internal tools and dashboards when required. Requirements 5+ years of commercial software development experience with Java as the primary language. Deep knowledge of the Spring ecosystem (Boot, Data, MVC, Security, Cloud) and strong practical experience with reactive/asynchronous programming (Spring WebFlux / Project Reactor). Solid understanding of distributed systems, concurrency, and performance tuning at the JVM level. Strong verbal English skills at B2 level or higher, with the ability to explain architectural decisions and collaborate directly with a global engineering team during voice calls. Location outside of the Russian Federation due to contractual and payment restrictions. Candidates from Belarus are eligible only if they possess an active legal entity/IP in Georgia or Europe for international payments. Commercial programming experience or strong familiarity with Go (Golang). Hands-on experience with high-load and Big Data tools including Apache Kafka, ClickHouse, and Aerospike. Real-world experience or deep interest in LLMs and AI orchestration tools such as LangChain, LangGraph, or N8N. Familiarity with frontend development using ReactJS and TypeScript. Benefits Opportunity to work on production infrastructure handling 1 trillion + daily requests. Work within a team of senior engineers with direct impact on the platform's architecture. Choice between a fully remote schedule or a hybrid format from the office in Budva, Montenegro. Stable monthly payments in USD via international B2B contracts.

Location: Beograd, Serbia Workplace: hybrid About The Role: Join Paysend’s Automation and Efficiency team to help build and improve backend systems that support global payment operations at scale. This role focuses on designing and developing high-performance backend services and internal tooling used to process and analyze millions of financial transactions daily. You’ll work across distributed systems and data-heavy workflows where reliability, performance, and correctness are critical. This is a strong fit for engineers who enjoy solving complex backend and data problems, working across multiple services, and building systems that operate under real-world scale and operational demands. What You'll Do (Responsibilities): Design, implement, and maintain backend services and internal tools in Java, powering the processing and analysis of millions of financial transactions daily Own and evolve PostgreSQL -based data models, queries, and performance optimization across multiple services. Build and improve systems that automate operational and transaction-monitoring workflows at scale Work within a distributed microservices ecosystem, handling service communication, dependencies, and evolving integrations Contribute to the design and implementation of a new fraud monitoring platform built on the company’s modern technology stack Investigate complex production and operational issues, identify bottlenecks, and implement long-term improvements Collaborate closely with QA and Analytics teams to ensure systems are reliable, scalable, and operationally effective Monitor and improve system performance, observability, reliability, and scalability across services Contribute to CI/CD and deployment automation improvements across engineering workflows What You’ll Need To Be Successful In This Role: 5+ years of backend development experience with Java and Spring Strong hands-on experience with PostgreSQL in production systems Experience working with distributed systems and microservices architectures Experience with major cloud platforms, preferably AWS or GCP Strong engineering mindset with the ability to solve unfamiliar and complex technical problems independently Comfortable working across multiple services and technical domains Strong ownership mentality from implementation through deployment and operational support Ability to adapt quickly to changing technical and business priorities Great to have: Experience with CI/CD pipelines and deployment automation (GitLab preferred) Experience with Docker or other containerization technologies Hands-on experience with C# or Rust Experience in fintech, payments, fraud detection, or other transaction-heavy systems Bachelor’s or Master’s degree in Computer Science or a related field Why Join Paysend? Make a Global Impact: Join a company that is transforming how people and businesses move money around the world. Your work will contribute to products and services that help millions of customers stay connected globally. Own Meaningful Outcomes: We empower our people to take ownership, make decisions, and drive real impact. You'll have the opportunity to shape solutions, challenge the status quo, and see the results of your work firsthand. Grow with Us: As a fast-growing global fintech, we offer opportunities to learn, develop new skills, take on new challenges, and advance your career across functions and geographies. Collaborate with Exceptional People: Work alongside talented colleagues from diverse backgrounds and disciplines who are united by a shared ambition to build, innovate, and deliver great outcomes for our customers. Move Fast and Make Things Happen: We value action, curiosity, and continuous improvement. You'll be part of a culture that encourages experimentation, embraces change, and focuses on delivering meaningful results. Be Part of Our Journey: We're building the future of the global money movement. Join us at an exciting stage of growth where your ideas, expertise, and contributions can help shape what's next.

Проект: Vault — крипто-дружественный full-cycle white label продукт на стыке банковских и криптовалютных решений для B2B2C-клиентов, позволяющий бизнесу экономить время и деньги, исключая необходимость работать с множеством поставщиков и получать отдельные лицензии. Задачи: — End-to-end разработка backend-сервисов на Kotlin, включая архитектуру и деплой. — Самостоятельное написание манифестов для Kubernetes и Helm-чартов, управление инфраструктурой. — Использование Kotlin Coroutines и моделей асинхронности для создания высокопроизводительных систем. — Настройка мониторинга, определение ключевых метрик для обеспечения надежности и прозрачности системы. — Проектирование распределенных систем с использованием Kafka, PostgreSQL и Redis в event-driven и cloud-native подходах. — Менторство, участие в код-ревью и развитие инженерной культуры ответственности за результат. Технический стек: — Языки: Kotlin (основной), рассматриваются Senior Java разработчики, готовые перейти на Kotlin. — Технологии: Spring Boot, Kafka, PostgreSQL, Redis. — Инфраструктура: AWS (EKS, Lambda, S3, RDS), Docker, Kubernetes, Helm. Требования: — Опыт разработки на JVM 5+ лет, свободное владение Kotlin или экспертный уровень Java с готовностью перейти на Kotlin. — Понимание, что задача не завершена, пока сервис стабильно работает в продакшене, интерес к профилированию и внутренностям рантайма. — Практический опыт контейнеризации (Docker) и оркестрации (Kubernetes), желание самостоятельно управлять инфраструктурой. — Знание моделей конкурентности, CAP-теоремы, ACID, SOLID и паттернов проектирования распределенных систем. — Опыт оптимизации PostgreSQL (индексы, планы запросов) и понимание стратегий кэширования в Redis. — Высокая степень ответственности, готовность разбираться в причинах сбоев и настраивать алерты. Условия: — Конкурентная оплата с выплатами в криптовалюте. — Полностью удалённая работа. — Гибкий график, акцент на качестве выполнения задач, а не на количестве отработанных часов.

Location: Lisbon Workplace: hybrid Spin.AI is a global SaaS cybersecurity company that protects mission-critical data across Google Workspace, Microsoft 365, Salesforce, Slack & more. Our product — SpinOne — is a platform that combines SSPM, ransomware protection, DLP, backup & recovery for enterprise customers worldwide. We're looking for a Backend Developer with strong Java and Spring Boot experience to join our engineering team. You'll work on a large-scale cybersecurity SaaS platform, building new product capabilities, developing cloud integrations, improving platform reliability, and solving complex engineering challenges that directly impact enterprise customers worldwide. This role is based in our Lisbon office in a hybrid format. If you are not currently in Portugal, we are open to remote work during the trial period, with relocation to Lisbon afterward. 🛠 Architecture You'll be working on a distributed backend platform built around a service-based architecture with 30+ independently deployable services . Our backend ecosystem includes: Java 19 & Spring Boot Service-based architecture (30+ services) Eureka Service Registry REST APIs with OpenFeign RabbitMQ for asynchronous communication PostgreSQL Shared databases for selected services 🚀 What You'll Build You'll work on backend services powering SpinOne, including: Backup & Recovery functionality Google Workspace, Microsoft 365, Salesforce and Slack integrations Enterprise access control and permissions Audit logs and administration features Data synchronization and processing pipelines High-volume asynchronous workflows Cloud storage integrations Some of the upcoming engineering challenges include: Building a new Google Directory Backup integration Designing scalable data storage for Google APIs Developing backup and restore processes Supporting migrations to new third-party APIs (e.g. Microsoft Graph) Making integrations resilient to API limitations, retries and partial failures 🤝 Responsibilities & Engineering Culture After the onboarding period, you'll own features throughout their entire lifecycle. This includes: analyzing business requirements and identifying missing scenarios discussing requirements with Product Owners participating in technical planning and estimation designing technical solutions together with the team implementing features writing and maintaining tests participating in code reviews fixing QA findings supporting releases monitoring production after release investigating production issues and customer-reported defects Our engineers are expected to take ownership, proactively suggest improvements, and actively participate in technical discussions. 📌 Must-have Requirements 4+ years of commercial backend development experience. Strong experience with Java and Spring Boot. Experience with Java 19. Experience with MyBatis. Strong knowledge of PostgreSQL. Confident SQL skills. Experience analyzing and optimizing query execution plans. Understanding of indexes and database performance basics. Experience with RabbitMQ or similar message brokers. Experience with REST API development and integration. Ability to work with complex product logic and enterprise-level workflows. Good communication skills and ownership mindset. English: Intermediate+. 🌍 Why Spin.AI Work in a fast-moving, high-impact cybersecurity company recognized by Gartner, Forrester, and G2 . Work on a real product with real users and visible business impact Work on an interesting and large-scale product Solve complex, non-trivial security and engineering challenges Opportunity to influence technical and product decisions Trust from management and autonomy in day-to-day work Strong, professional team with deep expertise 🎁 What we offer Annual performance-based salary review Annual performance-based bonus Referral bonuses Educational budget Sport & hobby compensation Medical insurance compensation Company presents (birthdays, anniversaries, weddings, etc.) Corporate travel parties twice a year

Location: Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Warsaw, Poland JetBrains creates professional tools that make developers more productive and help them focus on what matters. Our websites and web services are a core part of the JetBrains ecosystem. They connect us with users worldwide, power product distribution, support learning, and enable feedback loops at scale. We are currently looking for a Software Developer to join our Web Development team . The ideal candidate will be someone who can take ownership of services end-to-end, from architecture and implementation to deployment and long-term support. In this role, you will: Design and develop internal company-wide web applications and services. Participate in the creation of solution architecture, from selecting approaches to decomposing services and defining their interactions. Build and maintain services running in AWS and Kubernetes-based environments. Develop tools and platforms for localization workflows and integrate them with third-party systems. Improve the reliability, scalability, and observability of our systems. Collaborate with other teams to evolve shared infrastructure and internal platforms. We’ll be happy to have you on our team if you have: Strong  3- 5 years experience in backend web development using Kotlin or Java. Experience with Node.js. A solid understanding of modern backend frameworks (e.g. Ktor and Spring). Experience designing and building production-grade systems. An understanding of distributed-system fundamentals (e.g. networking, fault tolerance, and scalability). Experience working with cloud environments (AWS or similar). Familiarity with containerization and orchestration. The ability to write clean, maintainable, and well-structured code. A willingness to take ownership of systems in production (including by offering support and assisting with continuous improvement). Good communication skills and a collaborative mindset. We would be especially thrilled if you have: Experience with infrastructure as code (e.g. Terraform). Experience with CI/CD pipelines and deployment automation. Experience with observability tools (e.g. metrics, logging, and tracing). Practical experience using AI tools or agents in development workflows. Why join JetBrains? Strong base salary. We offer competitive pay that reflects your skills and experience. Flexible work location. Enjoy the freedom to work from home or from the office. Remote work. Spend up to 30 days per year working remotely from abroad. Extra time off. More days to relax, recharge, and do the things you love. Medical insurance allowance. Enjoy peace of mind for you and your family Learning and development opportunities. Access to conferences, courses, and language classes. Relocation support. We help make your move as smooth and stress-free as possible. Language classes. Pick up the local language or sharpen your English skills. Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays. Mental health support. To help you feel your best, we provide easy access to professional mental health services. Sports benefit. Enjoy an on-site gym or sports club stipend. Internal events. Join company-wide celebrations and team gatherings. *Some benefits may vary depending on location. #LI-MP1 We are an equal opportunity employer We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation. We process the data provided in your job application in accordance with the Recruitment Privacy Policy.