Senior Software Engineer API (f/m/d) - Node.js, SQL

Remote in our day-to-day work. On-site when it matters.

We work remote by default – focused, efficient, and with full ownership. For larger features, architectural decisions, and real brainstorming sessions, we come together in Berlin – fast, hands-on, and without unnecessary meeting overhead.

We use AI to accelerate – not to replace thinking.

We design the system, steer the output, and take responsibility for what we ship.

Fast where it makes sense. Careful where it matters.

Your Mission

- Develop and maintain microservices that connect worlds (internal & external systems).
- Command side quests (and sometimes the main questline) when the Tech Lead is away from keyboard.
- Shape the team’s strategy with your strong opinions and battle-tested experience.
- Master the arts of authentication & authorization (OAuth, Auth0 integrations, specs reading = your spellbook).
- Design & optimize SQL databases like a level 99 architect (bonus points for PostgreSQL mastery).

Requirements

5+ years XP as Backend/ API Developer in Node.js + TypeScript .; Legendary SQL & DB design skills (PostgreSQL = epic weapon).; ORM wisdom (knowing both the buffs and nerfs).; Strong in automated testing (jest/mocha, coverage quests).; Docker, Git, JavaScript, SQL – all mastered.

Nice to have

AWS, Grafana, Prometheus, Graylog.; Academic background (Computer Science, Software Engineering).; Leadership XP (professional, not disciplinary).

Benefits

Ownership over tickets: You’re trusted with real responsibility, not just tasks. No unnecessary bureaucracy, no micromanagement – we rely on you to take things forward.; Build > Talk: We test what works – not what sounds good. Fail fast, learn faster.; High standards, low ego: We take our work seriously, but not ourselves. Direct feedback, honest collaboration, no drama.; Stay sharp: Hackathons, conferences, community – we invest in your growth and keep you at the cutting edge.; And yes – the fundamentals are covered too: 30 days of vacation + Dec 24 & 31 off, Smart Fridays (4 days week possible), mobility (Germany ticket & JobRad), sports & health offerings, mental health support, corporate benefits, RTL+ access, and more.