Senior Backend Software Engineer (f/m/x)

⭐️ What SIRIUS is all about

SIRIUS is a Berlin-based Music Tech startup with the mission to make music education accessible to everyone around the world. We have developed a video conferencing system for musicians. Our virtual music classroom is tailored for 1-on-1 online music lessons. Excellent sound and the highest level of data protection are our top priorities. We revolutionize music education through innovative technologies.

⚙️ Engineering at SIRIUS

We are an engineering-centric business that scales our operation sustainably, with beautiful code, an ethical approach to our users and data, and an innovative opinion on new technologies. We analyze data, talk to users, prototype, and iterate quickly. We focus on discovering and solving user problems, not just building and shipping features. As a member of our engineering team, you’ll take on a key role in this process and see your work be used by thousands of users worldwide.

🔍 What we're looking for

We're looking for a passionate senior backend engineer to join our team. You have experience working with a software product in an early-stage startup or in a company that values innovation, great user experience, and technical quality.

🚀 Start: as of now!

• Developing new features and supporting the current application using NodeJS


• Write efficient, reusable, and reliable code with tests coverage and documentation


• Integrate third-party services


• Architecturing new modules


• Participate in every stage of the development lifecycle, from initial concept to deployment and ongoing maintenance


• Improve CI/CD flows together with DevOps


• Participate in daily team meetings, fostering collaboration across teams, and driving development best practices

• More than 4 years of hands-on experience with NodeJS


• Proficiency in JavaScript/TypeScript


• Experience with NodeJS frameworks: NestJS and Express or Fastify


• Skilled in working with relational databases and ORM-s


• Familiarity with Amazon Web Services


• Familiarity with DevOps tools like: Docker, Jenkins, Traefik, monitoring tools


• Good knowledge and understanding of Object-Oriented Design patterns and principles


• Proactive and solution-oriented mindset, always looking for opportunities to improve

• A role with a lot of responsibility and the opportunity to shape the way of an early-stage startup


• Work in a dynamic, fast-paced environment where every day brings new challenges


• Benefit from a steep learning curve and gain hands-on experience


• An exciting and fun startup atmosphere with highly motivated colleagues and a beautiful office in Kreuzberg (including regular team events)


• Flexible working hours & home office culture


• Extensive training opportunities are also available - we are very supportive of your development


• Regular team events as well as free drinks, snacks and breakfast during the week

If you feel like taking on responsibility from day one, let's talk :) We are looking forward to receiving your application. 🤩

Nothing for you but you want to work with us? Please feel free to drop us a line and we can see what we can come up with for you. Great people are hard to find, so we'd rather make a stretch and take you onboard anyway!