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

smartclip; Berlin; Hybrid; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

30 days vacation

Dec 24 & 31 off

Smart Fridays (4 days week possible)

Germany ticket

JobRad

Sports & health offerings

Mental health support

Corporate benefits

RTL+ access

Zusammenfassung

smartclip Europe GmbH in Berlin seeks a Senior Software Engineer API to build and maintain microservices in Node.js and TypeScript. You will design secure authentication and authorization flows and optimize SQL databases, especially PostgreSQL, working hybrid with on-site days in Berlin.

You bring 5+ years in backend/API development, strong ORM knowledge, and a track record in automated testing. Leadership experience is a plus as you influence technical direction and team strategy.

Qualifikationen

• 5+ years of backend/API development in Node.js with TypeScript.
• Strong SQL & DB design skills, PostgreSQL expertise.
• Familiarity with ORM concepts and usage.
• Experience with automated testing (jest/mocha) and test coverage.

Aufgaben

• Develop and maintain microservices connecting internal and external systems.
• Handle leadership tasks when the Tech Lead is away.
• Contribute to shaping the team's strategy with experience and opinions.
• Implement and secure authentication and authorization (OAuth, Auth0 integrations).
• Design and optimize SQL databases; leverage PostgreSQL where applicable.

Kenntnisse

Node.js

TypeScript

PostgreSQL

SQL & DB design

ORM

Automated testing

Ausbildung

Academic background in CS/Software Engineering

Tools

Auth0

Jobbeschreibung

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

smartclip Europe GmbH

Berlin, Kastanienallee 97, Germany

hybrid

Company Description

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.

Job Description

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).

Qualifications

Your Skills

Must-haves:

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).

Nice-to-haves:

Academic background (Computer Science, Software Engineering).

Leadership XP (professional, not disciplinary).

Additional Information

Why you’ll love working with us

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.

Your CV is just the starting point.

What matters more to us than your resume: a portfolio, a side project, a demo repo – anything that shows you don’t just talk about code, you ship it. Production-ready. Thought through. Done.
smartclip is committed to creating a diverse and inclusive environment. All qualified applicants will receive consideration for employment without regard to race, ethnicity, nationality, age, gender, gender identity, religion, sexual orientation, disability, or any other diverse characteristics.