> Markdown version of [/jobs/ext/3726030-senior-backend-software-engineer](https://www.wearedevelopers.com/jobs/ext/3726030-senior-backend-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Software Engineer - **Company:** Codesphere GmbH - **Location:** Karlsruhe, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Cloud Computing, Distributed Systems, NoSQL, Queueing Systems, Software Engineering, SQL Databases, Software Technical Review, TypeScript, ReactJS, Backend, Containerization, Kubernetes, Devsecops, Docker, Microservices - **Published:** October 14, 2026 - **Apply:** https://startup.jobs/senior-backend-software-engineer-m-f-d-codesphere-10441563 ## About the Role * Several years of professional experience in software development, ideally in web or distributed systems * Strong proficiency in 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, * Experience in building and/or operating cloud infrastructure components, ideally in a cloud-native environment e.g. message queues, SQL / NoSQL DBs * Familiarity with React * Experience building and/or operating monitoring and logging systems * DevSecOps mindset and hands-on experience ## Description * 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 virtual cloud provider platform, working on features that improve the overall platform experience - including Deployment-Technology, ManagedService, AuthN/AuthZ, Developer-Experience, ..