Backend engineer golang for fitness platform

7NXT Health Group; Berlin; Hybrid; EUR 80.000 - 110.000; Vollzeit

Benefits dieser Stelle

Hybrid work model

30 days vacation + праздники

Mobility budget €30

Zusammenfassung

Gymondo ищет опытного Backend Engineer (Senior) для разработки и поддержки масштабируемых бэкэнд-сервисов. Вы будете работать с чистой архитектурой, проектировать REST API по OpenAPI и развивать микросервисную инфраструктуру в рамках гибкой Agile-команды.

Требуются 4+ года опыта в бэкенде, уверенное владение Golang/Gin-Gonic, знание AWS, Kubernetes и Terraform, а также хорошее владение английским языком. Офис в Берлине, гибридный режим работы, коммуникации в команде и code-ревью приветствуются.

Qualifikationen

• 4+ года опыта backend-разработки, включая инфраструктуру

Aufgaben

• Разработка и поддержка масштабируемых бэкэнд-сервисов на Golang и Gin-Gonic

Kenntnisse

Golang

Gin-Gonic

OpenAPI

REST API design

microservice architecture

unit tests

peer code reviews

agile development

English

Tools

AWS

Kubernetes

Terraform

Jobbeschreibung

Описание:

As (Senior) Backend Engineer at Gymondo, you build and improve the scalable backend systems that power our platform for hundreds of thousands of active users. You work with a modern tech stack, establish new services using clean architecture principles, and help translate legacy concepts into maintainable, future-proof code. Your work directly shapes the technical foundation that enables Gymondo to grow — reliably, efficiently and at scale.

Задачи:

• You build, improve and maintain scalable backend services using Golang and Gin-Gonic, following clean architecture and established design patterns
• You design and implement REST APIs following OpenAPI standards, with a focus on clarity, reliability and long-term maintainability
• You contribute to our microservice architecture — working on reliability, scaling, stateless applications and event-driven systems
• You rebuild legacy concepts and translate them into well-known programming patterns with transparent and maintainable business logic
• You develop data-driven features and are involved in all stages of the development process — from design to deployment
• You work on our scalable, automated infrastructure using AWS, Kubernetes and Terraform
• You participate in peer code reviews, write unit tests and champion agile development practices
• You share knowledge, discuss better solutions openly and grow together with the team

Требования:

• 4+ years of professional experience in backend-focused development, including infrastructure
• 3+ years contributing to microservice architectures with a focus on reliability, scaling, stateless applications, event-driven systems and clean architecture
• 3+ years designing REST APIs following OpenAPI standards
• Proven hands‑on experience with Golang and Gin-Gonic
• Ability to design proof of concepts and prototypes
• Standardised coding practices: peer code reviews, unit testing and a preference for agile development
• An open mindset and genuine interest in state‑of‑the‑art technologies and methodologies
• Fluent English
• Будет плюсом: Experience with JVM languages (Kotlin / Java) and frameworks such as Ktor, Spring or Node.js;
• A Product Engineer mindset: balancing technical excellence with business impact, proactively identifying trade‑offs that prioritise user value and speed‑to‑market without compromising long‑term system health;
• Strong communication skills across the Product & Engineering team and additional stakeholders;
• A collaborative, humble approach — you promote good relationships in your guild and are always willing to learn from others

Условия:

• 30 days of vacation per year + Christmas Eve & New Year's Eve as additional paid days off
• Hybrid working model — 60% in the office, 40% from home, applicable to all working hours
• Up to 4 weeks of work from abroad per year (Berlin-based roles)
• Free Urban Sports Club M membership & access to Nilo Health for mental health and personal development
• Free access to 7Mind, Gymondo & Buddyfit — our own digital wellbeing products
• €30 monthly mobility budget via Navit
• €1,000 annual training budget + a wide range of opportunities for personal growth and development
• Family-friendly benefits — childcare costs & paid sick days for children
• The office classics — fruit & vegetable basket, muesli & yogurt (also vegan), drinks & snacks
• Pet-friendly office — four-legged colleagues are very welcome!