Вакансии

Задачи: — Проектировать и развивать схемы БД PostgreSQL под высоконагруженные и/или критичные к консистентности сервисы. — Писать и сопровождать backend‑сервисы на Go, эффективно работающие с PostgreSQL (pgx/database/sql, пул соединений, транзакции, контекстные тайм‑ауты). — Писать SQL‑запросы, процедуры/функции (PL/pgSQL), проводить оптимизацию (EXPLAIN/ANALYZE, индексы, partitioning). — Разрабатывать и выполнять миграции схем (инструменты на Go или Python; миграционные фреймворки приветствуются). — Настраивать и контролировать репликацию, резервное копирование и восстановление; участвовать в планировании отказоустойчивости. — Профилировать производительность (pg_stat_statements, auto_explain, метрики) и тюнить параметры PostgreSQL. — Сотрудничать с командой разработки, DevOps и аналитиками; консультировать коллег по эффективному использованию PostgreSQL. — Участвовать в код‑ревью, улучшении стандартов, автоматизации (CI/CD). Требования: — Опыт коммерческой разработки на Go 5-6 лет: написание сервисов, тестирование, профилирование, работа с контекстами и конкуренцией. — Базовый/умеренный опыт на Python для утилит, скриптов, ETL или миграций. — Глубокие знания PostgreSQL (уровень DB Developer / начинающий DBA): проектирование схем; нормализация/денормализация; индексы (btree, hash, GIN/GiST, BRIN); оптимизация запросов; план выполнения; транзакции и уровни изоляции; блокировки; partitioning; репликация (physical/logical); backup/restore (pg_dump, pg_basebackup, WAL); безопасность (роли, гранты, RLS); расширения; мониторинг и тюнинг конфигурации. — Уверенный SQL (DDL/DML, CTE, window‑функции). — Понимание принципов надёжности и согласованности данных. — Желательно: практика работы в Linux‑средах (shell, systemd, networking basics). — Docker / контейнеризация; опыт с docker‑compose или Kubernetes. — Настройка CI/CD (GitLab CI, GitHub Actions, Argo CD и др.) для сборок, тестов, миграций. — Опыт работы с высоконагруженными системами, шардингом, pgBouncer, Patroni и т.п. — Опыт работы с timescaledb, clickhouse. — Знание инструментов наблюдаемости: Prometheus, Grafana, ELK/Opensearch. — Опыт написания тестов для БД (fixture‑данные, миграции, интеграционные тесты). — Английский на уровне чтения техдоков и обсуждения в issue/PR. Условия: — Оформление по ИП РФ (не ГПХ, не СЗ). — Длительный срок работы.

Location: London, United Kingdom About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. What we’re looking for We’re looking for a Backend Engineer to join the Wolt AdTech & Promotions team. This role is best suited for someone who is strongly backend-oriented, thrives in ambiguity, and can take ownership of large, cross-functional initiatives from planning to delivery. You might be a great fit if you Are a strong backend engineer, ideally with Golang experience Have experience building and operating scalable backend systems Are comfortable working in high-ambiguity environments and bringing structure where needed Can independently lead large initiatives across team boundaries, from problem definition and planning to stakeholder alignment and on-time delivery Communicate clearly and effectively, and know how to gather, process, and act on feedback Can build strong working relationships with stakeholders and keep multiple parties aligned around shared goals Have hands-on experience with AI-assisted engineering workflows , including tools like Codex, Claude, and agent-based development approaches Bring experience with NoSQL databases such as Cassandra, MongoDB, or similar technologies Requirements Backend engineering experience Strong preference for Golang Proven ability to take ownership of complex, cross-team projects in ambiguous environments Strong stakeholder management, planning, and delivery skills Excellent communication and alignment-building skills Extensive experience with AI-assisted development , including tools such as Codex, Claude, and agentic workflows Experience with NoSQL databases such as Cassandra, MongoDB, or similar is a plus Our Commitment to Diversity and Inclusion We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel. Beware of recruitment scams: DoorDash, Deliveroo, and Wolt will never ask you to pay money or share sensitive financial information during hiring — learn more about our legitimate recruiting process at Recruitment Scam Awareness - DoorDash .

Location: Bengaluru Workplace: Hybrid WHY HARVEY At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you. At Harvey, the future of professional services is being written today — and we’re just getting started. ROLE OVERVIEW As a Staff Software Engineer on the Product team at Harvey, you'll play a critical role in designing and building new backend systems while equally scaling and strengthening our existing infrastructure. Our backend infrastructure is the foundation that powers every user interaction with Harvey — processing billions of prompt tokens and millions of daily requests across our global legal AI platform. You'll work in an environment balanced between innovation — building new systems — and operational excellence, ensuring that Harvey remains resilient and efficient as it scales products, regions, customers, and usage. Your contributions will directly impact the reliability, scalability, and security of our platform as we serve the world's leading law firms and professional service providers. This role is based in Bengaluru, India. WHAT YOU'LL DO - Design and build scalable, fault-tolerant backend infrastructure systems that power Harvey's AI platform across multiple cloud regions - Own and evolve our multi-cloud infrastructure (Azure, GCP), including Kubernetes orchestration, networking, and container management - Lead technical initiatives around observability, incident response, and operational excellence — building systems that enable rapid detection and resolution of issues - Architect and optimize our distributed systems for reliability, including load balancing, quota management, and failover mechanisms - Partner with Product Engineering and Security teams to ensure our infrastructure is an accelerant, not a constraint - Drive infrastructure-as-code practices using tools like Terraform and Pulumi to enable reproducible, auditable deployments - Mentor engineers and raise the technical bar across the organization through code reviews, design reviews, and technical leadership - Representative Projects - Design and implement a next-generation model proxy architecture that routes millions of daily inference requests while maintaining model API compatibility and enabling seamless model integration - Build distributed rate limiting and quota management systems using Redis-backed algorithms to handle bursty traffic patterns without degrading user experience - Architect multi-region deployment strategies that meet strict data residency requirements for global enterprise customers - Develop comprehensive observability infrastructure with granular SLA monitoring, burn rate alerts, and detailed token attribution for cost tracking - Lead the evolution of our CI/CD pipelines to improve developer velocity while maintaining production stability WHAT YOU HAVE - 10+ years of experience in Infrastructure Engineering or Platform Engineering in a production environment - Long track record building and scaling complex, large-scale distributed systems - Deep proficiency with cloud infrastructure platforms (Azure preferred; GCP or AWS experience transfers well) - Strong fluency in Infrastructure as Code (IaC) tools — Terraform, Pulumi, or CloudFormation - Solid understanding of Kubernetes, container orchestration, networking, and cloud security at scale - Experience with observability tools (Datadog, Sentry) and incident response practices (PagerDuty, Incident.io http://Incident.io) - Strong programming skills in Python, Go, or similar languages - Excellent problem-solving skills, a "spidey sense" of where things could go wrong, and a commitment to operational excellence NICE TO HAVE - Experience building infrastructure for AI/ML workloads or high-throughput inference systems - Background with distributed rate limiting, load balancing, or quota management systems - Experience operating multi-tenant platforms with strict security and compliance requirements - Track record of leading complex cross-functional projects and delivering measurable impact ADDITIONAL INFORMATION - Work eligibility: Must be authorized to work in India. Visa sponsorship is not available for this role. PLEASE FIND THE APPLICANT PRIVACY FOR THIS REGION HERE https://www.harvey.ai/legal/india-applicant-privacy-notice. #LI-AS2 Harvey is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law. We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made by emailing accommodations@harvey.ai

Задачи: — Проектирование и разработка высоконагруженных распределенных систем. — Оптимизация производительности баз данных и запросов. — Участие в системном дизайне и архитектурных решениях. Требования к кандидату: — Опыт коммерческой разработки на C#/.NET от 5 лет. — Опыт проектирования схем данных с нуля и оптимизации запросов под высокие нагрузки. — Реальный опыт работы с распределенными системами и/или шардированием. — Глубокие знания системного дизайна: паттерны GoF, Clean/Onion Architecture, CQRS/Mediator. — Опыт работы с Highload: шардирование, репликация, распределенный кэш (Redis), брокеры сообщений (Kafka/RabbitMQ), паттерны Circuit Breaker/Saga. — Экспертное владение базами данных: проектирование схем (нормализация/денормализация), глубокое понимание работы индексов, анализ планов запросов. — Уверенное использование Entity Framework Core: понимание трансляции LINQ в SQL, борьба с N+1 и материализацией. Условия: — Оформление: только ИП. — Удаленный формат работы. — Полная занятость.

О ПРОЕКТЕ Мы строим инфраструктуру для передовой криптовалютной биржи и ищем Senior-разработчика, который усилит наше бэкенд-ядро. Вам предстоит работать над архитектурой, где во главе угла стоят экстремальные нагрузки, безопасность и работа с данными в реальном времени. ВАШИ КЛЮЧЕВЫЕ ЗАДАЧИ — Core Development: Проектирование и разработка бэкенд-систем и микросервисов на .NET (C#). — Scalability: Создание архитектур для ключевых компонентов биржевого движка. — Performance: Обеспечение Low-latency, High Availability и отказоустойчивости всех сервисов. — Connectivity: Разработка и обслуживание высокоскоростных REST API и WebSocket-каналов. ЧТО МЫ ЖДЕМ ОТ ВАС — Опыт: 5+ лет коммерческой разработки на .NET Core и C#. — Architecture: Уверенная работа с микросервисами и облачными провайдерами (AWS, Azure). — Data: Практический опыт в моделировании данных, оптимизации SQL/NoSQL запросов и обработке Big Data. — High-Load: Понимание принципов построения торговых систем, финтех-платформ или Betting/Gaming движков будет огромным плюсом. — Domain: Базовое понимание блокчейна и специфики криптотрейдинга. ПОЧЕМУ ЭТО КРУТО? — Прямое участие в формировании инфраструктуры глобальной криптобиржи. — Возможность решать сложные инженерные задачи в Low-latency среде. — Полная свобода выбора локации и гибкие условия оплаты.

О компании Neural_City — IT-компания, разрабатывающая решения на основе искусственного интеллекта и веб-сервисы для бизнеса и маркетплейсов. Сейчас мы открыли стажировку для начинающего Python-разработчика. Рассматриваем кандидатов с минимальным коммерческим опытом — главное желание развиваться и базовые навыки. Чем предстоит заниматься Выполнение простых задач на Python под руководством наставника; Работа с готовым кодом (доработка, поддержка, мелкие правки); Интеграция сервисов через API; Разработка и доработка Telegram-ботов; Помощь в поддержке веб-проектов (в том числе на WordPress); Участие в разработке внутренних сервисов компании. Мы ожидаем от кандидата Базовые знания Python; Опыт разработки или доработки сайтов на WordPress (даже учебные или фриланс-проекты); Опыт работы с вайб-кодом / no-code / low-code решениями будет большим плюсом; Понимание, как работать с чужим кодом; Готовность учиться и задавать вопросы. Будет плюсом Базовое понимание API и HTTP-запросов; Начальные знания SQL или работы с базами данных; Интерес к IT и разработке в целом. Что мы предлагаем Реальная стажировка с живыми задачами, а не «для галочки»; Поддержка и обучение на всех этапах работы; Простые и понятные задачи для старта; Полностью удалённый формат работы;

Location: 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 Opportunity We’re looking for a Java Engineer to join our Fraud Risk team! This role will provide an early and significant impact on the engineering team. You will be expected to be responsible for such areas as implementation and support of backend microservices, working closely with the frontend and cross-functional teams to coordinate complex deliverables, do research and provide meaningful feedback about any decision being made within the team. Following are some domains you will have opportunities to work with: Real-time fraudulent monitoring with highly configurable rules Event data stream ingestion which supports near real-time fraud rules setup Advanced A/B testing capabilities for our customers so they can leverage greedy algorithms and fight fraud Powerful tools and innovative data science driven solutions for business user Full feature risk ecosystem What You’ll Be Doing Proficiency with Java stack and JVM (memory/performance tuning, GC) Proficiency with developing Web Services, SOA, REST APIs, Message Queue, Distributed/Scalable Architecture Proficiency in Spring Framework (Spring Boot), Hibernate (or similar ORM), Maven, Git Design and develop 24/7 high scale APIs and distributed system, the tech stack will be on Alicloud/AWS Strong CS fundamentals, solid knowledge of OOP/OOD, GoF design patterns Write unit tests, integration tests and CI/CD scripts Own, monitor and improve our services in production Development and testing of high quality product features spanning multiple product domains Work with engineering managers, architects, engineers & QA to develop innovative solutions that meet market needs w.r.t functionality, performance, reliability, realistic implementation schedules and adherence to development goals and principles Be a technical leader; research and promote new technologies and tools Face technical challenges - performance, fault-tolerance, security and live production issues Be involved throughout our service life cycle, influence every step of the way What We Look For In You Min. 5+ years of experience in Software Development Possess a solid foundation in Java, with a deep understanding of JVM configuration optimisation strategies and tuning, IO, multi-threading, concurrency frameworks, common data structures, algorithms, and design patterns Good programming specifications and rich work experience Familiar with mainstream open-source application frameworks, such as SpringBoot, SpringMVC, Mybatis, SpringCloud, etc. Experience with MySQL, Oracle, and other databases, with an in-depth understanding of things, locks, indexes, database and SQL optimisation, design methods such as sub-database sub-table, leader/follower synchronization Familiar with common middleware, such as Kakfa, ELK, Hologres, etc. Possess a deep understanding of the design principles of common caching systems, such as Memcached, Redis, etc. and be able to accurately choose caching solutions Have a good understanding of distributed system principles, including CAP, consistency, idempotent operation, etc. Work well in a team environment and be able to effectively drive cross-team solutions that have complex dependencies and requirements Results-oriented, self-learner, problem solver with 'can do' attitude Clear logic, quick thinking and good communication skills Bilingual is highly preferred (Mandarin and English) as the team will be working with stakeholders in different regions Nice-To-Have Already or are eager to become an expert in the blockchain and cryptocurrency landscape and will understand how speculators, traders, digital asset exchanges, blockchain money services businesses and financial institutions operate Experience working in a disruptive technology, successfully launching products, ideally, within FinTech, eCommerce, SaaS, AdTech, or Digital Wallet business experience A history (and preference) of being both strategic, analytical and execution-oriented Familiarity with product management processes and tools Experience working with teams across different time zones Perks & Benefits Competitive total compensation package 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 .

Задачи: — Поддержка SSP/DSP; — Командный code-review; — Активное участие в выборе необходимых технологий; — Документирование созданного программного обеспечения. Требования: — Опыт коммерческой разработки на Go от 4-5 лет, обязательно 4 года последний опыт на Go, остальной опыт на C++, Java или C#; — Опыт работы с HighLoad-проектами (не менее 10K-20K RPS при стандартной нагрузке); — Хорошее знание SQL/NoSQL (Redis, Kafka, Postgres, Linux, MongoDB); — Понимание веб-технологий и опыт работы с трафиком; — Опыт создания новых оптимальных алгоритмов проектирования и развития системы и продуктового направления; — Опыт работы с Git на уровне опытного пользователя; — Реальный опыт менторства (обучение программистов ниже уровнем). Будет преимуществом: — Знание ClickHouse, Aerospike, ScyllaDB, Apache Cassandra; — Опыт работы в домене с рекламой и programmatic advertisement; — Опыт работы в Bigtech, маркетплейсах и adtech отделах; — Опыт работы с RTB (биддер, аукцион); — Опыт работы с высоконагруженными проектами (от 20K-30K RPS); — Неформализованный управленческий опыт; — Технический английский; — Понимание сетевых протоколов; — Опыт работы с видео, рекламой или аналитическими системами. Условия: — Полностью удалённая работа из любого города РФ, есть офисы в Москве для желающих работать в офисе или гибридно; — Рабочий график 5/2 с 9:00 до 18:00 или с 10:00 до 19:00 по МСК; — Отсутствие трекинга рабочего времени; — Оформление по ТК РФ; — Годовая премия 8,3% годового дохода; — Обучение, участие в интересных проектах и расширение профессиональной экспертизы; — ДМС, оплата мобильной связи, предоставление техники; — Удалённое оформление и доставка оборудования; — ИТ-аккредитованная компания (полный соцпакет); — Только один этап интервью с представителями компании (Ведущий разработчик и Технический директор).

О ПРОЕКТЕ Разработка инновационных блокчейн-решений на базе сети Solana в рамках растущей продуктовой экосистемы на стыке децентрализованных финансов и технологий здравоохранения. Мы ценим инженерный подход, использование AI-инструментов для ускорения процессов и отсутствие избыточной бюрократии. ОСНОВНЫЕ ЗАДАЧИ — Проектирование и разработка смарт-контрактов (on-chain) и backend-сервисов на Rust. — Работа с инфраструктурой Solana: взаимодействие с RPC-узлами и индексаторами данных. — Глубокая оптимизация кода, аудит безопасности и контроль качества исполнения транзакций. — Интеграция современных AI-инструментов (Claude, Cursor) в процесс разработки для повышения эффективности. ТРЕБОВАНИЯ К КАНДИДАТУ — Опыт коммерческой разработки на Rust от 3 лет. — Практический опыт разработки под экосистему Solana. — Понимание принципов Web3, архитектуры DeFi-протоколов и логики смарт-контрактов. — Опыт работы с токеномикой и кросс-чейн решениями будет преимуществом. — Готовность активно использовать AI-инструментарий в ежедневной работе. УСЛОВИЯ РАБОТЫ — Полностью удаленный формат сотрудничества из любой точки мира. — Прямое влияние на архитектуру продуктов и техническое видение проектов. — Работа над реальными, востребованными рынком решениями. — Минимум формализма и фокус на инженерном результате.

Location: Hong Kong, Hong Kong SAR 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. Key Responsibilities Design and optimize high throughput order execution systems with sub-millisecond latency targets Build real time market data pipelines aggregating order books and price feeds from multiple exchanges Implement position tracking with exchange reconciliation, risk limits, and multi account support Develop exchange connectivity using FIX 5.0+, WebSocket, and HTTP/2 protocols Profile and eliminate latency hotspots using garbage free coding and lock free concurrency Implement pre-trade risk controls, circuit breakers, and rate limiters Qualifications Solid STEM (Science/Technology/Engineering/Mathematics) education background. 5-8 years software development experience, preferably in trading/oms/latency sensitive systems Strong Java 17+ proficiency with understanding of JVM internals and GC behavior Hands-on experience with FIX 5.0+, WebSocket, and HTTP/2 protocols Solid multi-threaded programming and concurrent systems knowledge Understanding of order lifecycle and market microstructure basics Strong problem solving skills and attention to detail Excellent communication and collaboration skills Ability to work independently and as part of a team in a fast paced environment Preferred Skills Cryptocurrency/Digital Assets: Crypto exchange APIs, DeFi, blockchain trading Execution Algorithms: TWAP, VWAP, iceberg, sniper, or other smart order routing strategies IPC Technologies: Aeron, Chronicle Queue, shared memory messaging Proficiency or strong interest in Rust for performance critical systems development Low latency libraries: Agrona Collections, Protocol Buffers, SBE for high performance serialization Spring Framework, Netty, Vert.x Timeseries databases (e.g InfluxDB) Redis, etcd for caching and coordination Technical Environment Languages : Java 17+, Rust, Python Protocols : FIX 5.0+, WebSocket, HTTP/2 Stack : Spring, Netty, Aeron, Chronicle Queue, Redis, MySQL, InfluxDB 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 allowance 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. 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 .