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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sidebase Open-Source Contributor & Senior TS Dev - **Company:** Sidestream Alle Jobs Anzeigen - **Location:** Köln, Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Open Source Technology, Blockchain, TypeScript, ReactJS, Vue.js, Kubernetes - **Published:** August 14, 2026 - **Apply:** https://www.careerjet.de/jobad/dee9815edcd1f2411dbc66eed52f61b5b4 ## About the Role * 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). ## Description 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 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. ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Pragmatic Blockchain Design Patterns: Integrating Blockchain into Business Processes](https://www.wearedevelopers.com/videos/1579-pragmatic-blockchain-design-patterns-integrating-blockchain-into-business-processes) - [Emergency Discussion: Can’t Hire the Right Developers? Here’s What Everyone Else Misses](https://www.wearedevelopers.com/videos/1748-emergency-discussion-can-t-hire-the-right-developers-here-s-what-everyone-else-misses) - [Common Mistakes in Vue.js and How to Avoid Them](https://www.wearedevelopers.com/videos/958-common-mistakes-in-vue-js-and-how-to-avoid-them) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Dev Digest 131 - AI'm not sure about OSS](https://www.wearedevelopers.com/magazine/472-dev-digest-131-ai-m-not-sure-about-oss) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023)