Sidebase Open-Source Contributor & Senior TS Dev (f/m/d)

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 Contribute to Open Source: Write, maintain, and enhance open-source projects like Sidebase and actively engage with the developer community. Community Engagement: Address issues, create documentation, and develop a vision for open-source initiatives. Fullstack Development & Technical Lead: Build robust applications using TypeScript, Nuxt3 and Vue. Collaborate with product managers to conceptualize, architect and implement projects in agile teams. Mentor and Guide: Help junior developers level up their skills through mentoring and collaborative projects. What You Bring Open-Source Enthusiast: You have experience contributing to open-source projects and actively engaging with the community. Tech-Savvy: You’re proficient in TypeScript or JavaScript and have a solid understanding of frameworks like Vue or React. Modern Tech Explorer: You enjoy working with cutting-edge technologies like Nuxt 3 and Kubernetes, staying ahead of the curve. Craftsmanship in Code: You take pride in writing clean, composable, and peer-reviewed code that meets high-quality standards. Passionate Collaborator: You’re excited about shaping the future of open-source and love working with others to bring ideas to life. Hands-On Problem Solver: You’re open to a real-life coding challenge during the application process. We value developers who enjoy rolling up their sleeves and writing great code, not just technical managers. Strong Communicator: Your can communicate great in English (and German is a bonus). No cover letter required! Instead, share 2-3 sentences about why you’re excited about this role and what makes Sidestream appealing to you. You can also include links to projects you’ve worked on to give us an impression of your skills and contributions.