Senior Backend Engineer

Your mission as a Senior Backend Engineer

We are looking for a passionate (Senior) Backend Engineer (m/f/d) to join our amazing backend team. In this role, you will be responsible for developing new features and enhancing our existing code base using NodeJs, Express, and MongoDB.

What you’ll be doing

Design and maintain server-side applications and database architecture.

Collaborate with front-end developers for a seamless user experience.

Regularly review and improve code and system efficiency.

Develop and deploy reusable, testable code and automated tests

You will thrive in this role if

You have at least 3 years of hands-on experience with Node.js, along with strong proficiency in TypeScript and Express.

You have practical experience working with NoSQL databases, preferably MongoDB.

You have a solid understanding of object-oriented programming principles.

You hold a degree in Computer Science or a related field – or have completed a comparable vocational training

Having AWS (S3, ECS, EC2), Docker and Terraform experience is a plus

Having previous experience with NestJS is a plus

You are a proactive problem solver, always seeking innovative solutions and continuously improving processes.

You are willing and able to get familiar with new systems.

You are a team player and enjoy collaborating with cross-functional teams.

You thrive in a collaborative environment, valuing team input and ensuring alignment with project goals.

How we work

We work in small, agile product teams with lots of ownership and fast decision-making.

You’ll collaborate with smart, driven, and genuinely nice people.

We keep meetings to a minimum – focus time matters.

We use a modern tech stack that supports us in building great products:

Backend: Node.js (TypeScript), Express, MongoDB, AWS, Docker, Terraform

Frontend: Angular, Flutter

Tools we love: GitHub, ClickUp, Slack

What’s in it for you?

Flexibility Policy - Average is 30 days taken, however, we do not have a hard cap of number of vacation days as we know life happens

Temporary work from abroad - If you're based in the EU, you can work outside your country of residence for up to 180 days per year

All the hardware you need and your own MacBook

If you are located in Hamburg or Berlin, you'll get a Deutschland ticket or access to a mobility budget with the NAVIT app to get you to and from the office space

Subsidised Urban Sports Club or ClassPass membership based on location

In case you’re located in one of the cities where most of our fellow Appinioneers are (Hamburg, Berlin, Munich, London, Madrid, Barcelona, or New York), you can get access to our Co-working spaces

Additional role details

This is a fully remote position open to candidates based in Germany, the UK, Portugal, the Netherlands, and Spain

This role will report directly to our Head of Infrastructure

Our interview process

Screening Call with a Talent Acquisition Partner

Technical Interview with  our Engineering Team

Case Study Interview with our Engineering Leadership Team

Executive Interview with C-Level

Reference Calls