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Senior Backend Engineer (f/m/d) - Job Freiburg, Berlin, Home office - Jobs bei WHATEVER.WORKS

Senior Backend Engineer (f/m/d)

Senior Backend Engineer (f/m/d)

As an experienced Senior Backend Developer (f/m/d), you will play a crucial role in building and enhancing our innovative SaaS application and platform architecture. You will use technologies like Node.js, NestJS, and PostgreSQL to deliver a performant, seamless, and engaging user experience. If you are passionate about developing high-quality software products and enjoy working in a fast-paced, cross-functional team, you will fit right in with us!

Your role

  • Responsible for the design, implementation, and maintenance of our high-performance, scalable, and secure web applications. Solve complex problems across the entire technology stack
  • Shape and develop our software architecture in collaboration with the team
  • Design and implement APIs and third-party system integrations
  • Ensure high code quality, performance, and scalability by encouraging best practices, automated testing, and code reviews
  • Implement and use CI/CD pipelines to automate and improve development workflows
  • Actively participate in agile development processes and work closely with the product and design teams to foster a collaborative and communicative working environment

Your profile

  • At least 5 years of experience as a backend developer in agile software development, ideally in a SaaS environment
  • Strong knowledge of our tech stack: TypeScript, Node.js / NestJS, PostgreSQL (or equivalent database), Redis, SQS, Git
  • Experience with public cloud services / AWS
  • Experience in API development, ideally with Node.js
  • Experience in test-driven development
  • Commitment to clean code, reusability, and testability
  • Fluent in English, both written and spoken
  • Work permit for Germany
Nice to have
  • Knowledge of CI/CD and Infrastructure as Code (IaC)
  • Experience with containerization tools (Kubernetes and/or Docker)
  • Good German language skills, both written and spoken


  • Impact & Innovation: You will significantly contribute to the development of an innovative HR software solution. At WHATEVER.WORKS, you drive real change in the world of work and bring your skills to a rapidly growing tech startup
  • Ultimate Flexibility: Enjoy the freedom to choose your working hours and location flexibly and work remotely within Germany. Plus: Work from anywhere you want with up to 40 days of Workation per year
  • Mobility: With your own JobRad and a mobility budget of €100 per month, you are always mobile, whether for work or personal use
  • Mental Health: Your mental health is important to us. Benefit from our mental health platform, including ten coaching and counseling sessions per year
  • Culture & Community: Experience a trusting work environment where everyone collaborates at eye level, and transparent communication is a priority. Your ideas are not only valued but are crucial to our success! Through our quarterly live events, we strengthen our team spirit and grow together
  • Development & Growth: We not only develop as a company but also support your personal and professional development - grow in your role and beyond
  • Top Technology: We equip you with up-to-date hardware to ensure smooth work processes

How to apply

Apply with your current CV or send us a link to your LinkedIn profile. If your profile is a fit, we will discuss next steps in an initial conversation. If you have anything else you'd like to share, feel free to use the comment field.

We value diversity and explicitly encourage applicants, regardless of social, ethnic, or national background, gender or gender identity, sexual orientation, religion, physical or mental abilities, and age, to apply.

Start: As soon as possible

hybrid / remote | 100% (40h)

We look forward to receiving your application!