Senior Backend Developer (f/m/d)

Frankfurt, Germany 


Up to 80% remote

Entry level: mid-level/senior

Entry date: immediately

You are interested in the circular economy and battery technology?

At Circunomics, as a Backend Developer (f/m/d), you will be part of our team responsible for designing and implementing components of our cloud-based data analytics platform. This includes, among other things, the specification and implementation of various APIs, backend microservices, and deployment to our cloud infrastructure.

Qualification, Experience, Skills 

  • Degree in computer science or a similar technical field

  • 3+ years of related work experience

  • Knowledege of PHP and Symfony Framework

  • Experienced with JavaScript, Node.js and Express

  • A broad understanding of message-based systems, RESTful, API design, microservice architectures, and distributed systems

  • Design and operation of container-based applications, including those using Kubernetes

  • Experience in planning and maintaining large and high-performance backend systems

  • Experience with SQL/NoSQL-based database systems and schema designs

  • Clean understanding of HTTP protocol and web technology

  • Experience in designing systems for public clouds (AWS or Azure)

  • Experience with Linux based environments, shell scripting, and infrastructure diagnostics

  • Willingness to write and maintain documentation

  • A keen sense of knowing when a feature “works” and when it can be improved

  • A focus on coding standards and code quality

  • Architecture skills (code and infrastructure). Acronyms like SOLID and DDD make you excited

  • You regularly follow KPIs and can get the most out of them to make well-reasoned decisions and iterate to improve those through time

  • Push for shipping. CI/CD is a must. Putting code live every day is a given.

  • Your profile is rounded off by a good command of German and/or English


  • With us, you are part of a young and ambitious team that works together on the technology for the next future

  • Modern cloud technologies, topics related to the circular economy, new energy, electromobility and li-ion batteries, modeling of complex systems and machine learning algorithms, data science

  • Your strengths and interests determine your development potential - we place great value on individual personality and skill development

  • We consider your individual situation and allow you to work in a family-friendly way

  • A true remote culture

  • Flexible working hours and benefits such as a travel card

Interested? Upload your CV together with a Cover Letter (only a few sentences explaining what motivates you about the position and what your salary expectation is) in one pdf.

We are excited to hear from you!