Backend engineer for an email client

Readdle; Warszawa; On-site; PLN 240,000 - 340,000; Full time

Job summary

Readdle ищет опытного Backend‑инженера на Go для разработки и поддержки крупных функций в масштабируемой среде. Ваша роль охватит синхронизацию сервисов, обработку данных и развитие инфраструктуры Kubernetes; вы будете тесно сотрудничать с командой и постепенно подключать фронтенд‑части по мере необходимости.

Требуется уверенный опыт работы с Go, оптимизация БД (MySQL), распределённые системы и умение работать с Kibana/Grafana.

Qualifications

• Сильный опыт программирования на Go.
• Опыт владения крупными фичами от идеи до релиза.
• Глубокие знания оптимизации баз данных (индексация, настройка запросов).
• Опыт асинхронной обработки и распределённых систем: очереди, ретраи, отказоустойчивость.
• Практический опыт Kubernetes: развёртывание и отладка.
• Уверенное использование инструментов AI для кодинга и проверка результатов.
• Опыт фронтенда и готовность дополнять клиентскую часть при необходимости.

Responsibilities

• Владение фичами на энд‑то‑энд: дизайн, декомпозиция, оценка, координация и выпуск в прод.
• Разработка Go‑сервисов для синхронизации, интеграций и обработки данных.
• Оптимизация запросов и доступ к данным в больших таблицах MySQL.
• Поддержка здоровья системы: сбор логов, метрик и анализ тревог (Kibana, Grafana, Kubernetes).
• Тестирование своих изменений перед выпуском и ревью кода в репозиториях backend.
• Участие в фронтенд‑части функций в параллельном режиме по мере знакомства с продуктом.

Skills

Go programming

Feature ownership

Database optimization

Distributed systems

Kubernetes

AI coding tools

Frontend basics

Tools

Kibana

Grafana

MySQL

CI/CD

Job description

Описание

Readdle is a pioneering force in the personal productivity space on Apple devices, having shaped the landscape since 2007. Our mission is to empower individuals and teams with innovative technology, enhancing their efficiency and creativity. We are dedicated to crafting exceptional mobile and desktop experiences for those who aspire to achieve more. Spark is a cross-platform email client, available on iOS, macOS, Android and Windows. Our mission has always been to help people fall in love with the email again, filter out the noise, and focus on what's important.

Задачи

• Own features end to end: design, decompose, estimate, coordinate with teammates, and ship to production
• Build and evolve Go services that handle sync, integrations, and data processing at scale
• Optimise queries and data access on large MySQL tables, and design async processing flows
• Keep the system healthy: investigate alerts, dig into logs in Kibana, metrics in Grafana, and pods in Kubernetes
• Test your own changes before they reach users, and review code in backend repositories
• Contribute to the frontend parts of your features (desktop and iOS clients), using AI agents to work efficiently across the stack
• You’ll start with backend only and gradually take on client-side work as you get to know the product

Требования

• Solid Go experience with strong hands-on coding
• Experience building large features with full ownership, from idea to production
• Strong knowledge of database optimisation (indexing, query tuning, working with large tables)
• Experience with async processing and distributed systems: queues, retries, failure handling, consistency
• Practical Kubernetes experience: deploying, debugging, investigating issues
• Confidence using AI coding tools, and the judgment to review and verify what they produce
• Some experience with any frontend technology, and readiness to contribute to client-side code when a feature requires it

Условия

Customer-centric culture. We put our users at the heart of everything we do. Every team member has the opportunity to engage directly with customers, gaining insights that shape meaningful, delightful experiences for millions worldwide. Relentless growth. We're committed to mastery in our craft. We take ownership of our work, decisions, and outcomes, and we see feedback as a catalyst for growth. Every challenge is an opportunity to learn, evolve, and raise the bar. Exceptional people, exceptional team. Our greatest strength is our people. We care deeply about each other, work transparently, and celebrate collective success. Together, we build an environment where everyone can do their best work and grow beyond their potential. Real impact. We design products that truly matter. Our focus is on delivering tangible value, simplifying complexity, pushing boundaries, and continuously improving how we build and deliver solutions to our users. Culture of innovation. We embrace curiosity and creativity in everything we do. Fresh ideas are not just welcomed, they're expected, celebrated, and turned into real innovations that shape the future of our products and company.