Бэкенд вакансии

• Разрабатывать фичи в API Mini App, ботах, картах, кошельке, комиссиях и B2B API. • Подключать интеграции с внешними провайдерами (таймауты, повторы, идемпотентность платежей).

Design, implement, test, and operate production services and APIs. Lead projects or meaningful components of projects from problem definition through deployment and iteration.

-Опыт продуктовой разработки на Python3. -Опыт работы с Django, DRF.

As a Tech Lead, you own the architecture and code quality of all Whizz systems: the PHP core and billing, the ERP, the client area, the mobile app and the People platform. 🔹6+ years in backend development, 2+ years leading a team.

Разработка и поддержка работоспособности существующего кода системы; Оптимизация производительности системы под высокие нагрузки;

Location: San Francisco Workplace: OnSite ABOUT US: AI NEEDS A NEW INFRASTRUCTURE LAYER. WE'RE BUILDING IT AT MODAL. Every era of computing brought new workloads that previous infrastructure couldn't support: mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath defined the decade. AI is no different, except it touches everything instead of one slice, and the window to build the layer underneath it is open right now. Our customers include category-defining companies like Ramp https://modal.com/blog/how-ramp-built-a-full-context-background-coding-agent-on-modal, Cognition, DoorDash, and Suno. They rely on Modal for instant GPU access, sub-second container starts, and native storage, so it's simple to serve low-latency inference, fine-tune models, and access production-ready sandboxes at scale. We've passed $1B in annualized run rate, up 15x from a year ago. In October 2026 we raised a $750M Series D led by Accel at a $15.75B valuation. Our team includes creators of popular open-source projects (e.g.,Seaborn https://github.com/mwaskom/seaborn,Luigi https://github.com/spotify/luigi), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience. THE ROLE: Modal’s Inference Runtime team owns the container runtime stack used to run inference and training workloads across our fleet. We work at the boundary of Linux, containers, filesystems, storage, GPU drivers, and distributed systems. Our goal is to make demanding ML workloads start quickly, run efficiently, and remain securely isolated, whether they use a single GPU, hundreds of gigabytes of memory, or multiple GPUs connected with RDMA. We’re looking for a systems engineer who enjoys working deep in the stack. You’ll build production runtime infrastructure in Rust and Go, diagnose difficult Linux and performance problems, and help determine the architecture of Modal’s container platform. You’ll also work closely with maintainers of gVisor and contribute to the runtime itself when the right fix belongs upstream. WHAT YOU'LL WORK ON: - Make container startup, checkpoint, and restore dramatically faster for large inference and training workloads - Build multi-GPU and accelerator-aware snapshotting, including efficient handling of GPU memory and RDMA-enabled workloads - Design zero-copy and low-copy data paths between container memory, filesystems, storage, and Modal’s runtime - Optimize large snapshot pipelines using techniques such as parallel uploads, direct I/O, incremental snapshots, and more efficient memory handling - Improve container image and filesystem performance across EROFS, FUSE, page caches, overlay filesystems, and remote storage - Extend our sandboxed runtime to support new GPUs, drivers, profiling tools, and device capabilities across NVIDIA and AMD hardware - Debug complex failures involving system calls, virtual memory, process lifecycle, kernel behavior, GPU drivers, and container isolation - Safely roll out runtime and kernel changes across a heterogeneous fleet using compatibility controls, scheduling constraints, feature flags, and observability - Work across the runtime, scheduler, storage, and GPU infrastructure, and take ambiguous production problems from investigation through deployment YOU MAY BE A FIT IF: - You have strong Linux systems knowledge, particularly processes, virtual memory, filesystems, system calls, scheduling, namespaces, cgroups, and signals - You’ve built or debugged container runtimes, sandboxes, the Linux kernel, or similarly low-level infrastructure - You have strong programming ability in Rust, Go, or another systems language, and an interest in becoming productive in both Rust and Go - You’ve profiled and improved systems where memory movement, I/O, synchronization, or kernel interactions dominate performance - You’re comfortable debugging across abstraction boundaries, from application behavior down through runtimes, drivers, and the kernel - You can turn loosely defined production problems into well-designed, reliable systems - You want to own important infrastructure and work closely with both internal teams and customers NICE-TO-HAVE: Any of the following would be helpful, but none is required: - gVisor, runsc, runc, OCI runtimes, seccomp, or checkpoint/restore systems - Linux kernel development, virtualization, sandboxing, kernel modules, or device proxying - CUDA, ROCm, GPU drivers, accelerator virtualization, or GPU profiling - RDMA and high-performance networking - FUSE, EROFS, direct I/O, mmap, page-cache behavior, or storage engines - Large-memory or multi-GPU inference and training systems - Contributions to open-source systems software Prior gVisor or machine-learning experience is not required. We care more about strong systems fundamentals, curiosity, and the ability to learn unfamiliar parts of the stack. WHY THIS ROLE: The container runtime is directly on the critical path for inference performance. Improvements here can substantially reduce cold starts, increase token throughput, unlock new accelerator types, and make previously impractical workloads possible. This is an opportunity to work on unusually deep systems problems with immediate production impact. You’ll have room to shape the architecture, contribute to open-source runtime technology, and take ownership of foundational infrastructure used by every inference and training workload on Modal.

Обязанности: Разработка сервисов, утилит и инструментов на C#/.NET; интеграция native ↔ .NET (interop/IPC/API).

Задачи: — Оптимизация производительности — Написание тестов — Работа с внешними сервисами и API — Использование экосистемы .NET — Взаимодействие с разработчиками, аналитиками, тестировщиками и менеджерами проектов для согласованного процесса разработки — Освоение новых версий .NET и сопутствующих библиотек — Освоение требуемых IDE, LLM, AI инструментов — Улучшение знания смежных технологий, в том числе DevOps Требования: — Высшее техническое образование — Опыт работы в команде от 3 лет — Уверенное владение C# — .NET Core 8+ — Понимание и применение SOLID — Знание протокола HTTP — Опыт разработки WEB API — Опыт работы с микросервисной архитектурой — Понимание структур данных и алгоритмов — Работа с БД через Entity Framework — Знание SQL: умение писать сложные запросы — Unit, интеграционное тестирование — Уверенное использование Git — Опыт интеграции сторонних библиотек и SDK — Опыт использования AI инструментов в разработке Будет плюсом: — Full stack — React JS — PostgreSQL — Опыт построения CI/CD — Опыт использования подхода Spec Driven Development — Инструментальное владение AI для анализа, генерации и автоматизации Условия: — Комфортный современный офис в Москве (Варшавское шоссе, 25Астр6) — График работы – офис, гибрид после испытательного срока — Ежегодный пересмотр зарплаты, годовая премия — Корпоративный спортзал и зоны отдыха — Более 400 образовательных программ СберУниверситета для профессионального и карьерного развития — Расширенный ДМС, льготное страхование для семьи и корпоративная пенсионная программа — Ипотека выгоднее до 7% для каждого сотрудника — Подписка Прайм с возможностью совместного использования на трёх близких — Вознаграждение за рекомендацию друзей в команду Сбера.

Задачи: — Разработка backend-сервисов на Python для коммуникационных потоков агентов — Реализация REST API эндпоинтов и логики маршрутизации — Интеграция с AWS AgentCore Runtime и Gateway, включая регистрацию Agent Card и конфигурацию целей — Разработка A2A agent invocation flows с использованием шаблонов caller и target — Реализация формата протокола A2A wire format с использованием JSON RPC 2.0 — Поддержка Server Sent Events (SSE) для событий жизненного цикла задач и push-уведомлений — Создание JSON схем Agent Card и реализация эндпоинта /.well-known/agent.json Требования: — Опыт работы 3+ года в backend-разработке на Python или Go — Опыт интеграции API и маршрутизации — Опыт работы с агентными или микросервисными коммуникационными паттернами — Опыт реализации REST API, включая создание и поддержку эндпоинтов — Понимание асинхронных и событийно-ориентированных архитектур, включая SSE и webhooks — Опыт программирования на Python, включая асинхронное программирование — Опыт работы с AgentCore SDK и REST API — Знание AWS AgentCore Runtime и Gateway — Понимание паттернов вызова A2A агентов — Знание формата протокола A2A wire format, включая JSON RPC 2.0, SSE и push-уведомления — Опыт создания JSON схем Agent Card и реализации эндпоинта /.well-known/agent.json Желательно: — Валидация интеграции шаблонов AWS AgentCore Gateway — Опыт с AWS Bedrock multi agent invocation patterns — Опыт работы с SSE event streaming, включая жизненный цикл задач и push-уведомления — Опыт с OpenTelemetry trace propagation через A2A agent hops, включая ADOT

Location: CAN: Vancouver (333 Seymour St) Workplace: Hybrid The role / impact You will deliver high-quality, impactful software that aligns with team and business goals, always keeping customer needs and outcomes front of mind. By identifying and solving complex, ambiguous problems independently, you will produce robust, high-quality, and scalable software that helps change the world by supporting small businesses. Your daily work will focus on systems, scalability, and engineering quality while collaborating across teams to drive technical excellence and developer efficiency. Through clear and thoughtful communication, you will ensure stakeholders are well-informed and aligned. You will play a key part in fostering an inclusive team culture by mentoring others and sharing feedback with empathy. Your active participation in planning, delivery, and continuous improvement will contribute directly to the success of the broader Xero community. The team / how they connect You will join the Accounting Core team within Product Platforms, which forms the critical foundation underneath core product areas like invoices, bills, payments, and payroll. The team exists to make it easy for other groups across Xero to build on a strong foundation of accounting concepts, data, and libraries safely and efficiently. Operating across Wellington and Vancouver, we collaborate closely to reduce tight coupling, establish clear service boundaries, and accelerate product velocity global-wide. The team is currently working on / Initially, you will focus on - Transitioning from a monolithic architecture to modern microservices to remove delivery bottlenecks and improve efficiency. - Building and operating services in a production cloud environment utilizing C#, .NET Core, and AWS. - Resolving complex legacy problems, database scalability challenges, and modernizing service interfaces or APIs. - Automating manual processes and applying test-driven and trunk-based development practices. Where and how you can work This role is based at our on-site location in Vancouver. We operate on a hybrid model where you will spend one to two days a week in the office for collaborative technical discussions and team alignment, with the flexibility to work from home on the other days. You will also have the opportunity to travel to New Zealand for onboarding after your first couple of weeks. Here are some of the things we are looking for - You bring proficient backend development experience with one or more programming languages such as C#, .NET, Java, or Go. - A solid understanding of distributed systems concepts, including service-to-service communication, eventual consistency, and resilience patterns belongs in your toolkit. - Your background features practical experience working with relational databases where transactional data integrity and ACID principles are critical. - Having a familiar working knowledge of modern DevOps practices, automated testing, and continuous integration pipelines will help you succeed. - Showing an interest in utilizing modern artificial intelligence tools will enable you to enhance personal productivity and streamline engineering workflows. - You possess strong communication and collaboration skills, with the capacity to manage internal stakeholders like a technical product partner. Apply even if your experience isn't a perfect match! At Xero, we hire based on your skills, passion, and the unique perspective you can bring to enhance our culture and team. Compensation & Total Rewards At Xero, we value the impact and skills you bring to the team. We believe in a Total Package philosophy - ensuring your value is recognized through a holistic lens that includes base salary, performance incentives, and world-class benefits. The expected base salary range for this role is 131,800 - 150,000 CAD. Individual pay is determined by various factors, including geography, level of experience, and the specific skills you bring to the role. In addition to base pay, Xero’s roles are eligible for the following forms of variable compensation: - Variable Pay: Permanent employees are eligible to participate in our annual bonus and equity (RSU) programs. You may also be eligible for performance-based cash or equity (RSUs) incentives depending on your role level, and company performance. - Comprehensive Benefits: World-class health, wellness, and retirement programs. Xero Perks https://careers.xero.com/inside-xero/benefits-wellbeing/ including Wellbeing days, generous leave, and dedicated professional development budgets. This is a posting for an existing vacancy. Xero uses AI to help screen applications based on job-related qualifications. These tools assist our recruiters but do not make automated hiring decisions. A human recruiter reviews all candidates before any hiring action is taken.

Location: Ukraine Workplace: remote Creatio is a global vendor of an agentic CRM & workflow platform with no-code and AI at its core. We help organizations automate customer and operational workflows achieving the fastest time-to-value and the highest ROI on the market. Millions of workflows run on Creatio daily, supporting thousands of clients in over 100 countries. Genuine care for our clients and partners is at the heart of our DNA.  We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports.  In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture. Who We’re Looking For: We are seeking an innovative Backend .NET Developer to join our Core Domain for collaborating within Scrum teams. As a Software Developer at Creatio, you will contribute to the core business process platform, delivering scalable and customizable solutions that empower organizations to automate workflows and drive innovation. Our teams are focused on the using best engineering practices. We provide the AI SDLC for all our engineering teams and have a wide range of AI practices in use. Responsibilities: Designing, coding, testing, and debugging software according to specifications and requirements.  Transforming the system design into actual software by writing code and implementing features.  Collaborating with stakeholders and product managers.  Conducting unit tests, integration tests, and system tests.  Participating in scrum team activities. Requirements: Confident in C# and .NET 8+. Strong knowledge of OOP and principles like KISS, SOLID, DRY. Hands-on experience with ASP.NET MVC/Core, Entity Framework and building Web APIs. Experience with Git, including branching, merging, and rebasing. Familiar with unit testing and mocking (NUnit, Mock). and API testing (Postman). Experience working with databases (MS SQL Server, PostgreSQL). Experience with AI technologies and solutions is a plus, but not required. English level — Upper-Intermediate (spoken and business writing) or higher. What you should expect from us: Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential. Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally. Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one. Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve. Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.

Location: Poland Workplace: remote Creatio is a global vendor of an agentic CRM & workflow platform with no-code and AI at its core. We help organizations automate customer and operational workflows achieving the fastest time-to-value and the highest ROI on the market. Millions of workflows run on Creatio daily, supporting thousands of clients in over 100 countries. Genuine care for our clients and partners is at the heart of our DNA.  We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports.  In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture. Who We’re Looking For: We are seeking an innovative Backend .NET Developer to join our Core Domain for collaborating within Scrum teams. As a Software Developer at Creatio, you will contribute to the core business process platform, delivering scalable and customizable solutions that empower organizations to automate workflows and drive innovation. Our teams are focused on the using best engineering practices. We provide the AI SDLC for all our engineering teams and have a wide range of AI practices in use. Responsibilities: Designing, coding, testing, and debugging software according to specifications and requirements.  Transforming the system design into actual software by writing code and implementing features.  Collaborating with stakeholders and product managers.  Conducting unit tests, integration tests, and system tests.  Participating in scrum team activities. Requirements: Confident in C# and .NET 8+. Strong knowledge of OOP and principles like KISS, SOLID, DRY. Hands-on experience with ASP.NET MVC/Core, Entity Framework and building Web APIs. Experience with Git, including branching, merging, and rebasing. Familiar with unit testing and mocking (NUnit, Mock). and API testing (Postman). Experience working with databases (MS SQL Server, PostgreSQL). Experience with AI technologies and solutions is a plus, but not required. English level — Upper-Intermediate (spoken and business writing) or higher. What you should expect from us: Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential. Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally. Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one. Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve. Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.

-Проектировать и разрабатывать масштабируемые микросервисы для высоконагруженных банковских систем. -Проектировать и оптимизировать сложные запросы к MS SQL Server (T-SQL), обеспечивая высокую производительность при работе с большими объемами данных.

• Вести крупные изменения в поиске end-to-end. Вы будете отвечать за бэкенд крупных инициатив — от идеи и RFC до выката в продакшен и анализа результата.

Задачи: — вёрстка новых страниц и адаптация сайта под разные устройства — работа с существующим кодом: доработка, оптимизация и исправление ошибок — создание и адаптация плагинов и модулей под механику сайта — поддержка сайта и выполнение задач по запросам команды Требования: — Уверенное владение Laravel и Livewire, опыт разработки на этом стеке — Владение PHP, HTML, CSS, JavaScript — Опыт работы с базами данных — Умение разбираться в чужом коде и дорабатывать существующий проект Условия: — работа в штате на постоянной основе — фиксированная оплата — обязательное заключение договора и подписание NDA

🔵Разрабатывать и запускать бэкенд-фичи вместе с продуктовыми командами (мобайл, веб, маркетинг, аналитика). 🔵Подключать AI- и API-провайдеров и автоматизировать интеграции, чтобы новые подключения не требовали ручной работы.

🌸Work with our engineers and leverage your own knowledge to understand the challenges they face and how to improve their experience. 🌸Contribute to our internal development platform (IDP) by designing, implementing, and maintaining internal tooling and systems.

Задачи: — развивать методику тестирования серверов — проводить техническую оценку серверов — формировать базовые требования к разработке ODM-решений и кастомных доработок OpenBMC — оценивать влияние платформы на ЦОД