Вакансии

– Разрабатывать AI-решения поверх нашей платформы: agentic workflows, tool calling, RAG, memory и human-in-the-loop контуры. – Проектировать multi-agent системы без жёсткой привязки к конкретному фреймворку или SDK — с логикой взаимодействия агентов, состоянием, памятью, маршрутизацией и обработкой ошибок.

Design, write, and maintain high-quality Apex code, custom LWC user interfaces, and asynchronous backend processing frameworks. Architect and build secure, bidirectional integrations between Salesforce and third-party enterprise platforms (e.g., SAP, HubSpot, BigQuery) using REST/SOAP APIs and middleware.

Если ты активный, шустрый, отлично знаешь Java 17+ / Spring Boot, умеешь строить архитектуру микросервисов и имел опыт работы с AI-продуктами, это круто. Уверенный опыт работы в роли Senior / Team Lead Backend от 3+ лет.

Location: Lviv Workplace: onsite Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe. The System Division is responsible for building and developing the Ajax software ecosystem. The team develops and maintains OS Malevich and the Video Management System, builds scalable cloud infrastructure, and creates client applications for multiple platforms, ensuring that all system components work together as a unified ecosystem. The division works with Java, Kotlin, Swift, C, C++, and Python. It includes embedded, cloud, mobile, and desktop engineers who ensure the stable operation of Ajax as a single digital platform. The Smart Home team focuses on integrating Smart Home devices into the Ajax ecosystem, developing cloud-based features such as automation scenarios and integrating third-party devices into the system. The team is also currently working on one of the most complex devices in the Ajax ecosystem, bringing together most of the company's technologies. This is an opportunity to contribute to the development of a sophisticated product that combines multiple technologies and engineering disciplines. Why this role is interesting: opportunity to work on high-load backend systems and distributed architecture. Real impact on core product development and architectural decisions. Modern technology stack and engineering-driven environment. Challenging tasks where performance, reliability and scalability truly matter. Required skills: 5+ years of commercial experience in backend development with Java in an enterprise environment. Strong understanding of Java Concurrency and hands-on experience with concurrent programming in production systems. Solid understanding of SOA, microservices and event-driven architecture. Practical experience with cloud computing platforms. Experience building and supporting high-load, scalable, and highly available systems; Hands-on experience with messaging brokers. Strong understanding of modern backend infrastructure, NoSQL. Practical experience with Kubernetes. Experience with Git, Gradle or othet CI/CD tools. Strong knowledge of unit testing and automated testing approaches. Would be a plus: experience with these technologies: Redis, Netty, Akka, NATS, AWS, Kafka, MongoDB, gRPC. Practical experience with Kotlin. Desire to grow into a team leadership role. What you will do: design and develop core backend services and data pipelines for the product line. Build clean, maintainable, and production-ready code with a strong focus on quality. Contribute to backend architecture, drive technical decisions, and document solutions for reliable deployment and operations. Ensure proper test coverage with unit and integration tests. Take ownership of performance, scalability, and cost efficiency within your domain. Maintain production reliability through monitoring, alerting, dashboards, and runbooks. Investigate and resolve production issues, including deep-dive analysis of complex cases. Work in a strong engineering culture with testing, continuous delivery and DevOps practices. Collaborate closely with product and engineering teams to deliver new features and improve existing services. We offer: the opportunity to suggest and implement your own ideas that directly influence the product and its mass production; A place in a fast-growing company with a motivated and professional team; Competitive salary; Medical insurance; Corporate English classes; The opportunity to participate in Ajax’s internal beta-testing program for security systems; Discounts from partner companies; Discounts on Ajax products. Turn on screen reader support. Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation.

• Свободное владение казахским языком. • Опыт в роли Senior / Team Lead Backend от 3 лет.

Location: Georgia; Ukraine; Poland; Brazil; Argentina; Colombia Workplace: Remote Solvd Inc. is a rapidly growing AI-native consulting and technology services firm delivering enterprise transformation across cloud, data, software engineering, and artificial intelligence. We work with industry-leading organizations to design, build, and operationalize technology solutions that drive measurable business outcomes. Following the acquisition of Tooploox, a premier AI and product development company, Solvd now offers true end-to-end delivery—from strategic advisory and solution design to custom AI development and enterprise-scale implementation. Our capability centers combine deep technical expertise, proven delivery methodologies, and sector-specific knowledge to address complex business challenges quickly and effectively. We are looking for a Senior Software Engineer (Elasticsearch, Scala) to join a team powering food search and logging for one of the world’s leading health and nutrition platforms. You’ll contribute directly to the systems that drive search — backend services, search infrastructure, and experimentation — with a focus on improving core metrics: conversion rates, time to log, query abandonment, and result relevance. WHAT YOU’LL DO - Contribute to, build, and maintain backend services that drive the food search experience, integrating with systems across the broader engineering organization. - Perform search performance tuning end-to-end — data design, indexing, query evaluation, and iterative improvement within Elasticsearch. - Assist in the evaluation and implementation of search and data technologies that improve result quality and user experience. - Collaborate closely with senior search engineers, product management, and leadership on solution discovery, experiment planning, and delivery. - Contribute to the development of tools, processes, and metrics for measuring and monitoring search quality. REQUIRED SKILLS & EXPERIENCE Elasticsearch - Demonstrated experience with performance tuning, query analysis, and relevance optimization in Elasticsearch at scale. - Strong understanding of index design, mapping strategies, cluster management, and scoring/ranking mechanics. - Familiarity with high availability, disaster recovery, and operational monitoring for Elasticsearch clusters. - Ability to deploy new indexes or clusters as needed for load balancing or experimentation. - Ability to translate product specifications into technical requirements and deploy ranking and relevance experiments with clearly defined success criteria and metrics. Scala - Strong experience writing, shipping, and maintaining Scala services in production. - Comfortable working across a stack that also includes SQL and Python — Scala is the primary language for this engagement. Agentic development - Active user of AI development tools such as Claude Code, Cursor, or comparable AI-powered coding environments — shipping production code with them, not just using autocomplete. - Familiarity with agentic coding patterns and workflows — code generation, refactoring, debugging, and test authoring. - Able to articulate how AI tooling fits into their development process and where human judgment remains critical. Engineering fundamentals - First-hand experience building, scaling, and supporting large-scale data infrastructure systems in production. - Strong understanding of database design, data architecture, and performance tuning across multiple data stores — MySQL, MongoDB, DynamoDB, Redis, or similar. - Experience with high-volume messaging systems such as Kafka. - Familiarity with AWS, GCP, or other cloud platforms. - Strong peer code review practices. PREFERRED QUALIFICATIONS - Experience leveraging AI workflows for meaningful development acceleration beyond autocomplete — code generation, refactoring, debugging, and test authoring at scale. When you join Solvd, you'll… - Shape real-world AI-driven projects across key industries, working with clients from startup innovation to enterprise transformation. - Be part of a global team with equal opportunities for collaboration across continents and cultures. - Thrive in an inclusive environment that prioritizes continuous learning, innovation, and ethical AI standards. Ready to make an impact? If you're excited to build things that matter, champion responsible AI, and grow with some of the industry’s sharpest minds. Apply today and let’s innovate together. Solvd is an equal opportunity employer.

零一智能 is looking for a Senior Java Engineer to build and maintain PaaS backend services and agent sandbox infrastructure.

‼️ Qo`shimcha: Biz rabola o'quv markaziga loyihalarda backendchi sifatida ishtirok etish, sizga seniro, middile ustozlar yo'l boshlaydi.

проектирование, разработка и поддержка высоконагруженных backend-систем; сопровождение и мониторинг работы сервисов в продуктивной среде;

Ручное тестирование frontend-backend архитектуры; Создание и поддержание документации по тестированию, тест-кейсов и чек-листов;

• Работа с backend-частью бизнес-критичных... • Опыт коммерческой разработки на PHP от 6 лет.

• Разрабатывать ядро прокси, управлять соединениями и жизненным циклом сессий. • Оптимизировать latency, throughput и потребление памяти, устранять блокировки и паузы GC.

Location: Poland; Brazil; Peru; Sweden; Argentina; Romania; Cyprus; Czech Republic; Hungary; Mexico; Chile; Bulgaria Workplace: Remote BUILDING THE FUTURE OF OPEN FINANCE Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system. THE TEAM xStocks brings real-world assets on-chain as tokenized securities that are regulated, fully-backed, and tradable across multiple blockchains. Built within Payward, the xStocks team runs the infrastructure that issues, custodies, and settles these instruments across EVM, Solana, TON, Tron, and more. The platform moves real value, so security is not a feature bolted on at the end. It is a property of everything the team ships. This is a hybrid engineering and security seat built for someone who is genuinely both: you ship products alongside the engineering team when the security queue is quiet, and you own security work end to end when it lands. You report into engineering and partner closely with the Payward security, CISO, and compliance functions. THE OPPORTUNITY - Own security deliverables end to end. Coordinate and review smart-contract audits, respond to security questionnaires and due-diligence requests, support CISO and compliance initiatives, and turn findings into tracked, closed-out fixes. - Run offensive assessments against our own platforms. Pentest the web apps, APIs, backend services, and on-chain components, and build the tooling to do it repeatedly rather than once. - Continuously assess posture. Threat-model new and existing systems, review architecture and key-management flows, and maintain a living view of the risks and their mitigations. - Review code for security. Be a default reviewer on changes touching auth, cryptography, custody, signing, and fund movement across our chains. - Harden the platform. Improve secrets handling, IAM and least-privilege, dependency and supply-chain hygiene, and detection and logging for security-relevant events. - Secure custody and signing workflows. Review and harden transaction signing flows, MPC and HSM integrations, signer permissions, admin roles, approval policies, and break-glass procedures. - Contribute to product engineering. Pick up regular backlog work in TypeScript so you stay close to the codebase you are defending. - Support incidents. Help with detection, triage, response, and post-mortems, and feed the lessons back into the program. WHAT YOU BRING - An engineer first. You write and review production code comfortably, TypeScript and Node.js in our stack, and you understand systems deeply enough to break them. - Strong application and infrastructure security fundamentals. The OWASP-class vulnerability landscape, authn and authz, injection, SSRF, supply-chain risk, and secure design. You have done real offensive work in pentesting, vuln research, or red-team. - Applied cryptography and blockchain security. Symmetric and asymmetric primitives, hashing, signatures, and key management, plus the security model of EVM, Solana, and ideally TON or Tron. You can read a smart contract and reason about how it fails. - Ownership. You can take an ambiguous security item, an audit, a questionnaire, or an incident, and drive it to closure without being managed through it. - Clear communication. You can explain a risk to engineers, to a CISO, and to an auditor, and tailor the message to each. - An automation instinct. You do not want to catch the same issue manually twice, so you turn findings into tests, alerts, controls, documentation, or platform improvements. - Risk judgment. You can tell a theoretical issue from a material one, and communicate severity, likelihood, impact, and remediation tradeoffs clearly. NICE TO HAVE - Experience commissioning or remediating third-party smart-contract audits. - Familiarity with custody and signing infrastructure such as HSMs, MPC, and ForDefi-style providers, and with on-chain transaction security. - Cloud security depth in GCP or AWS, IAM, and container and runtime hardening. - Detection engineering and security observability, including SIEM and log-based detections. - Relevant certifications such as OSCP, OSWE, or GWAPT. - Prior work in a regulated fintech or tokenization/DeFi environment. Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis. Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution. We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. OUR COMMITMENT Payward is powered by people from around the world and we celebrate the diverse talents, backgrounds, contributions, and unique perspectives that everyone brings to the table. We hire based on merit, seeking out people with the right abilities, knowledge, and skills for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgeable about crypto. We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Results are considered alongside experience and interviews, and are not the sole basis for any employment decision. As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, or local laws. Stay connected Follow us on Twitter https://twitter.com/krakenfx Learn on the Kraken Blog https://blog.kraken.com/#:~:text=Enter%20your%20email%20address Connect on LinkedIn https://www.linkedin.com/company/kraken-exchange/ Candidate Privacy Notice https://www.kraken.com/legal/candidate-privacy-notice

Location: APAC OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa 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 Opportunity We are looking for a seasoned backend engineer to design, build, and scale the backend systems powering OKX’s DEX trading products. You will own critical parts of the trading lifecycle—from quote discovery and order management to transaction submission, execution tracking, and reconciliation. Working closely with product, frontend, smart contract, and infrastructure teams, you will deliver secure, reliable trading experiences across multiple blockchain ecosystems. This is a hands-on engineering role with meaningful architectural ownership and opportunities to grow into technical leadership. What You’ll Be Doing Design and develop backend services for quote aggregation, order management, transaction orchestration, and execution tracking. Build reliable integrations with DEX protocols, liquidity sources, blockchain RPC providers, and indexing services. Define clear order and transaction state models, with robust handling of retries, duplicate requests, partial failures, and recovery. Ensure trading services remain reliable under high concurrency, traffic spikes, and degraded external dependencies. Implement appropriate rate limiting, concurrency controls, resource isolation, and graceful degradation. Optimize database access, transaction boundaries, caching, and asynchronous processing. Establish monitoring, alerting, load testing, and incident-response practices for critical trading flows. Support trading workflows across multiple blockchain ecosystems. Handle transaction submission, confirmation tracking, failed or dropped transactions, and chain reorganizations. Build data synchronization and reconciliation mechanisms to maintain consistency between backend records and on-chain execution. Translate product requirements into practical technical designs and production-ready services. Own features through implementation, testing, rollout, and post-launch operation. What We Look For In You 5+ years of professional backend engineering experience, including ownership of production systems. Strong proficiency in Java and its backend ecosystem. Solid understanding of concurrency, distributed systems, relational databases, caching, and messaging systems. E xperience building high-availability services and diagnosing performance or reliability issues in production. Understanding of blockchain transactions, smart contract interactions, and common DeFi trading mechanisms. Ability to independently drive a feature from technical design through production deployment. Strong ownership, sound engineering judgment, and effective cross-functional communication. 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! 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 .

The garden3d Head of Technology has one mandate: everything we build works, holds up in production, and gets built the smartest way available to us. Working in close partnership with our founder & president Hugh Francis, this person sets the engineering standard, and builds the culture that holds it.

— разрабатывать backend-сервисы на Java/Kotlin; — проектировать новые сервисы и участвовать в архитектурных решениях;

Задачи: — разработка backend для cross-border платежей — проектирование логики движения платежей между различными платежными системами и партнерами — интеграция с банками, платежными провайдерами и другими финансовыми партнерами — реализация AML / Compliance требований в процессе обработки платежей — интеграция платежного движка с внутренней CRM (ядром продукта) — участие в проектировании архитектуры и развитии платежной платформы Требования: — от 3+ лет коммерческого опыта с Go (основной язык) — опыт разработки платёжной платформы для cross-border B2B платежей (обязательно) — опыт проектирования платежных потоков и интеграций с внешними платежными партнерами — понимание AML / Compliance процессов и их влияния на разработку — опыт работы в малых/средних командах, где разработчик решает задачи end-to-end — активное использование AI в разработке — ownership mindset: самостоятельность, внимание к деталям, ответственность Условия: — работа по CET timezone из любой точки мира — B2B контракт с отпускными и больничными — small senior team, без бюрократии — активно развивающийся продукт без легаси

We are looking for a Senior PHP Developer to join our team remotely or from our office in Cyprus.