Working Student Fullstack Typescript Developer

Why Join Sidestream?

At Sidestream, we’re building a team of committed, explorative and witty individuals who love pushing boundaries while having fun. Here’s what you can expect:

• Impactful Work: Contribute to projects that matter, whether it’s digitalizing leading companies, developing open-source tool or innovating with blockchain and AI.


• Learning & Growth: Gain mentoring from experienced professionals and access to proven processes that prepare you for success in a fast-paced tech environment.


• Our Culture of Excellence: Embrace modern systems like the Entrepreneurial Operating System (EOS) to deliver outstanding performance and achieve ambitious goals.


• Collaboration & Fun: Be part of a driven team that values humor, creativity and shared experiences, with regular team events and occasional meetups.


• Flexibility: Work remotely, from our modern office in Cologne, or a mix of both—whatever helps you thrive.

Your Responsibilities

• Embracing Our Tech Stack: Work with modern technologies like TypeScript, Vue 3, Nuxt 3 and Dockerized applications running on Kubernetes.


• Navigating Your Career Path: Embrace a full-stack development role, where you’ll gain experience across both front-end and back-end technologies, equipping you with the skills needed for a versatile tech career.


• Joining the Fellowship: Collaborate with an experienced Tech Lead, a Product Manager and peers on 1-2 projects at a time, guided by mentors who are committed to leveling up your skills.


• Writing Code That Counts: Contribute meaningful work to projects from day one, with your code making its way into production.


• Learning and Improving: Continuously pick up new tools, languages and best practices while mastering clean, composable and testable code.

What You Bring

• A Hungry Mind: You’re eager to learn and grow. We offer mentorship, feedback and proven processes, but it’s your drive and curiosity that will make the difference.


• From Rookie to Rocky: No previous experience? No problem. We value humility, hard work and a commitment to self-improvement over a packed résumé.


• Familiarity with JavaScript and/or TypeScript: Whether you’re an expert or just starting out, we care about your ability to learn and grow. If we like your application, you’ll receive a coding challenge to demonstrate your skills. Don’t worry if you’re new to our tech stack—some of our best hires started from scratch and excelled by showing dedication and adaptability.


• Strong English Skills: You can communicate effectively with the team in English. German is a plus but not a must.


• Enrolled in Studies: You’re a student for at least 3 more semesters and available for 20 hours per week.


• Located in Germany: You are based here and ready to dive into this exciting opportunity.

No cover letter required! If you want to apply, don’t submit a traditional motivation letter. Instead, send us 4-5 sentences about your personal upsides and downsides of working with TypeScript, or share links to open-source contributions you’ve made (don’t worry if you don’t have any—it’s not a requirement). Contributions can include comments, commits, pull requests, issues, or anything else that showcases your engagement and skills. Please include your expected period of study here!