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. Tasks 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 pr