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Senior Typescript Developer (f/m/d)

Role overview

Qualifications

  • Advanced experience in TypeScript or JavaScript
  • Solid understanding of frameworks like Nuxt and Vue
  • Comfortable working on both frontend and backend projects
  • Strong communicator in English (German is a bonus)

Responsibilities

  • Build robust applications using TypeScript, Nuxt3 and Vue
  • Collaborate with product managers to conceptualize, architect, and implement projects
  • Help junior developers level up their skills through mentoring
  • Propose and implement new technologies or methodologies

Key facts

Hard skills

Other skills

  • Mentorship
  • Collaboration
  • Problem Solving

About the company

SIDESTREAM logo

SIDESTREAM

Our software is made with care and attention to details. What does that mean? Important software solutions should be tailored to your requirements and processes. This is where we can help. We combine fast and agile development with high quality, security and scalability. We do not develop throwaway products (MVPs), but focus on solutions that add value in the long term. Technologically, we often work with microservices and like to master "real world" challenges around big data, complex internal infrastructure and data protection. Examples of successful projects from the past, case studies can be found on our website: 1. Covid recovery portal for the city of Cologne 2. Machine data monitoring software (IoT) for a machine measurement company 3. Process automation in the lab for Forschungszentrum Jülich 4. Knowledge management software for GMP consultancy gempex 5. Real estate valuation calculator (proprate.de) for Cheil (Samsung Group) 6. Concept Sprint for the game developer Ubisoft Contact us anytime on LinkedIn or via our website for an unbinding get-to-know.

Company details

Company size11 - 50

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Job description

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

  • Fullstack Development: Build robust applications using TypeScript, Nuxt3 and Vue.
  • Lead Projects: 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.
  • Drive Innovation: Propose and implement new technologies or methodologies to keep Sidestream at the cutting edge.

Requirements

What You Bring

  • Deep Expertise: You have advanced experience in TypeScript or JavaScript and a solid understanding of frameworks like Nuxt and Vue.
  • Full-Stack Confidence: You’re comfortable working on both frontend and backend projects, taking ownership of the entire stack.
  • Leadership in Action: You can independently complete projects and enjoy mentoring less experienced developers to help them grow.
  • Craftsmanship: You take pride in writing high-quality, peer-reviewed, and production-ready code that makes a real impact.
  • Pragmatic Approach: You focus on doing the right things, the right way, efficiently and effectively.
  • 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.

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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