Backend Software Engineer (m/f/d)

About Codesphere

Codesphere is a Virtual Cloud Provider from Germany building the future of sovereign cloud infrastructure. Our platform gives enterprises and governments full sovereignty without giving up modern cloud capability – a vision recently validated by a series of multi-million European government tenders.

Since our founding in Karlsruhe in 2020, we’ve expanded into an international team of 60+ experts. Based in Karlsruhe and Munich and backed by top-tier investors, we are chasing a bold vision.

We’re scaling fast and would love for you to join us and grow alongside us

What you’ll drive

• You own complex features end to end – from product discovery and planning through technical design, implementation, testing, and maintenance.

• You conduct code and technical design reviews, raising the bar for quality across the team.

• You mentor junior engineers and actively contribute to a culture of learning and growth.

• You shape the capabilities of our collaborative developer cloud, working on features that improve the overall platform experience – including Public API, Usage History, IAM & Permission Management, Secrets Management, external CI integrations, Web IDE, deployment technology, monitoring, managed services, and the core internals of customer application deployment.

  What makes you a great fit

  Your Profile

  • Several years of professional experience in software development, ideally in web or distributed systems

  • Strong proficiency in JavaScript/TypeScript and/or Go

  • Solid understanding of SQL databases, distributed systems, and the design of APIs and microservices architectures, containerization e.g. Docker, Kubernetes

  • Degree in a relevant field or comparable qualification

  • Strong foundations in Computer Science fundamentals

  • Professional proficiency in English, written and spoken

  • Strong communication skills and a collaborative mindset

  • Openness to feedback and a genuine drive to keep learning

  • Structured approach to problem-solving and a curiosity for technology

What sets you apart

• Experience with cloud infrastructure, ideally in a cloud-native environment

• Familiarity with React

• Experience building or operating monitoring and logging systems

• DevSecOps mindset and hands-on experience

  What’s in it for you

  • 32 days of paid time off – 30 regular vacation days plus Christmas Eve and New Year's Eve off

  • Meal allowance – up to 15 digital vouchers per month, adding up to over €100 net for you

  • Flexibility – hybrid work setup with mobile work options and flexibility around core hours

  • Steep learning curve – fast-moving environment, real ownership, and a front-row seat to scaling a company

  • Job-Rad – lease a bike through us, tax-free

  • Gym access – stay active on site (Karlsruhe office only)

  • Employee events – from team offsites to regular get-togethers

  • Company pension scheme – company-supported pension to set you up for later

  • Great public transport links – both offices are within walking distance of tram and metro stops