go developer for mobile games

X-FLOW; Deutschland; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Flexible working hours

Remote/office work options

Career growth

Job summary

X-FLOW ищет опытного backend-инженера на перспективный рынок Германии. В должность входит создание и поддержка Go микросервисов, взаимодействие через REST и gRPC, проектирование баз данных и участие в архитектуре.

Требуется глубокое знание Go, работы с PostgreSQL/MySQL и Redis, а также опыт с Kafka/NATS, Docker/Kubernetes и CI/CD. Предлагаются конкурентная зарплата и гибкие условия труда.

Qualifications

• 3+ года коммерческой разработки, 3+ года Go
• Опыт проектирования микросервисной архитектуры и distributed systems
• Опыт работы с PostgreSQL/MySQL и Redis, индексирование и транзакции
• Опыт интеграций с Kafka/NATS; владение CI/CD

Responsibilities

• Разработка Go микросервисов с REST/gRPC
• Интеграция с внешними сервисами и контрактами
• Оптимизация производительности, профилирование, масштабирование
• Проектирование схем баз данных, миграции, индексация
• Работа с CI/CD и AWS, Docker, Kubernetes
• Обеспечение качества: тесты, код-ревью, автоматизированные проверки
• Об observability: логирование, метрики, алерты, трассировка
• Участие в архитектурном дизайне, RFCs, ADRs

Skills

Go

REST

gRPC

API design

distributed systems

testing

CI/CD

OpenTelemetry

Prometheus

Education

Нет требований

Tools

PostgreSQL

MySQL

Redis

Kafka/NATS

Docker

Kubernetes

GitLab CI

OpenTelemetry

Prometheus

Grafana

Job description

Описание

X-FLOW is a mobile game development company established in 2018. Its flagship product, Happy Color, is a popular digital coloring book and a successful ad-driven mobile app.

Задачи

Design and develop Go microservices using REST/gRPC, including public and internal APIs; Integrate with external services and develop contracts; Optimize performance, profile systems, reduce latency, and scale systems; Design database schemas and perform migrations, indexing, and query optimization; Work with PostgreSQL/MySQL, Redis, Kafka/NATS, and event-driven integrations; Implement and maintain CI/CD and AWS cloud infrastructure with Docker/Kubernetes; Ensure quality through unit, integration, and end-to-end testing, code reviews, and automated checks; Ensure observability and reliability through logging, metrics, alerting, and tracing; Participate in architectural design, RFCs, and ADRs.

Требования

3+ Years of commercial development experience, including 3+ years with Golang; Proficiency in Go, including context handling, concurrency with goroutines/channels, pprof profiling, gRPC/REST, generics, and modularity; Strong understanding of backend architecture, API design, microservices, and distributed systems; Experience with PostgreSQL/MySQL and Redis, including database design, indexing, and transactions; Experience designing event-driven integrations with Kafka/NATS; Experience with GitLab CI, feature flags, migrations, and blue-green/rolling deployments; Experience with Go testing/testify and integration/e2e testing; Knowledge of OAuth2 and JWT; Understanding of DDD principles, SOLID, 12-factor methodology, and observability with Prometheus/Grafana and OpenTelemetry; Russian at C1 or higher; English at B1; Nice to have: Experience with search technologies such as OpenSearch, Python and/or PHP, TypeScript, JavaScript and React, CQRS/Event Sourcing, idempotency, deduplication, BFFs, WebSockets, feature flags, experiments/A-B testing, and product metrics.

Условия

Competitive salary and benefits package; Flexible working hours; Remote/office work options; Career growth and professional development opportunities; Inclusive company culture that celebrates diversity and creativity; Employment Contract.