Senior Software Engineer API (f/m/d) - Node.js, SQL at Bertelsmann-Jobs | BE, DE | Rezi

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

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

Bertelsmann-Jobs · BE, DE

3 days ago

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

Bertelsmann-Jobs · BE, DE

4 days ago
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About the Role

We are looking for a backend specialist who loves the intersection of stability and scalability. Your focus will not be on a title, but on the impact of your code.

Responsibilities

  • Build and maintain robust microservices that ensure seamless communication between internal and external environments.
  • Take full ownership of features from a raw idea to a production-ready deployment.
  • Contribute to our technical roadmap by questioning the status quo and proposing scalable solutions.
  • Implement and refine authentication and authorisation flows (OAuth, Auth0) to keep our systems safe and accessible.
  • Ensure our data layer is lean and fast, applying deep knowledge of SQL and PostgreSQL to solve complex data challenges.

Requirements

  • You can write clean, maintainable, and type-safe code that thrives in a production environment.
  • You understand how to design efficient database schemas and optimise them for performance (PostgreSQL).
  • You know how to leverage ORMs effectively, understanding exactly when they help and when they get in the way.
  • Automated testing (jest/mocha) isn't a chore for you—it's the only way to ship with confidence.
  • You are comfortable with Docker, Git, and the general flow of modern CI/CD pipelines.
  • Experience navigating the AWS ecosystem or monitoring tools like Grafana, Prometheus, or Graylog.
  • A track record of mentoring peers or leading the technical direction of a project.
  • A degree in Computer Science or a self-taught journey evidenced by a strong portfolio.
  • A portfolio, a side project or a demo repo – something that shows us how you approach technical challenges and turn ideas into working solutions.

Skills

  • Node.js
  • TypeScript
  • SQL
  • PostgreSQL
  • ORMs
  • Automated testing
  • jest
  • mocha
  • Docker
  • Git
  • CI/CD
  • AWS
  • Grafana
  • Prometheus
  • Graylog

Location

  • Remote
  • Berlin

Work Type

  • Remote-first
  • Full-time

Experience Level

  • Backend specialist
  • Mentoring peers
  • Leading technical direction

Education Level

  • Degree in Computer Science
  • Self-taught journey evidenced by a strong portfolio

Benefits

  • 30 days of annual leave
  • December 24 and 31 off
  • Smart Fridays with the option of a four-day workweek
  • Deutschlandticket (public transport pass)
  • JobRad bike leasing
  • Sports and health benefits
  • Mental health support
  • Corporate discounts
  • Access to RTL+

About the Company

  • AI makes us faster. It doesn’t replace our human judgment. We challenge AI output, verify the results and own what we ship. We experiment fast, learn quickly and deliver with care.
  • We work remotely most of the time, with occasional workshops, team sessions and opportunities to collaborate in person at our tech office in Berlin.
  • We also host team events throughout the year, including our annual Company Offsite, which takes place at a different venue in Germany each year.
  • Take ownership of your work and drive your topics forward independently.
  • Try things early, get things wrong early, learn early.
  • We give direct feedback and work together openly and respectfully.
  • Develop your skills through hackathons, conferences and community exchange.

Equal Opportunity

  • All qualified applicants will be considered for employment regardless of ethnic origin, nationality, age, gender, gender identity, religion, sexual orientation, disability or any other personal characteristic.