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Senior Fullstack Engineer Typescript

  • Berlin, Germany
  • Full time
  • Competitive
  • 15th September 2025
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Full Description

In short

Our wholesale business is growing and expanding globally, and we’re looking for a Senior Fullstack Engineer (TypeScript) to help scale On’s Go-To-Market & Wholesale operations. In this role, you’ll be based in our Berlin office, reporting to one of the engineer managers, working closely with the product team and key stakeholders in Zurich to improve and grow our systems using the latest technology.

Your Mission

  • Lead and contribute to our GTM projects that impact our merchandising and wholesale operation.
  • Collaborate with the wider engineering teams to maintain the project codebases, raising the bar of code quality and scalability.
  • Work daily within a cross functional squad to build features and conduct experiments aligned with the product vision.
  • Streamline the work of the engineering team and contribute to improving productivity.
  • Improve deployment processes, such as speeding up the CI/CD pipeline, implementing canary deploys, and automating rollbacks.
  • Involving product conversations and take ownership in cases where there are lots of unknowns and open questions

Your story

  • You have been acting in a tech lead role using Typescripts in backend > 1 year
  • Extensive experience with Typescript and with Nest.js or a similar opinionated framework (Spring Boot e.g.)
  • Practical experience with React, and Next.js
  • Familiarity with at least one object-oriented programming language
  • Production experience with Rest API design and best practices of system design
  • Solid Knowledge and hands-on Experience with Docker and Kubernetes
  • Experience with Relational databases is a must-have.
  • Fluent in English

Nice to Have:

  • Practical knowledge of Document datastores
  • Experience with event driven architectures
  • Understanding of Domain Driven Design

Attributes of a successful candidate:

  • Product-Minded: Beyond just writing code, you possess a strong product engineering mindset, consistently connecting technical solutions to business value and user needs.
  • Pragmatic Problem Solver: You excel at tackling complex challenges with practical, efficient solutions, always prioritizing simplicity and avoiding unnecessary system complexity.
  • Collaborative Influencer: A true team player, you're adept at guiding team decisions and fostering consensus through professional and constructive influence.
  • Committed to Growth and Feedback: You're comfortable providing candid feedback to both peers and leadership, and equally eager to integrate feedback from others to continuously elevate your own expertise.

What to expect

We want to set everyone up for success, so here’s the lowdown on how we hire. Our process is a two-way street – bringing you into our culture, while helping us learn how you think.

Our full process can last about eight weeks from application to offer, because we care about getting it right. These steps explain how we usually do things.

Before you get started, feel free to consider if you want to work with us. Strange question? Well, we give people a lot of space to navigate their day-to-day and that style isn't for everyone. We want you to be passionate about what you do and be sure this is the right fit. Because when skills and passion combine – it creates that 'Wow' moment.

  • Step One

    It starts with you...

    You'll start by submitting your application to a specific role. We try to keep this step as simple as possible. We do get a lot of applications, but we review them all. We ask that you allow around 14 days for us to come back to you with a response. If you are a good fit to the role, someone will follow up with you within that window. If you didn't receive a reply, or were unsuccessful this time around, we encourage you to look for other possible matches at On.

  • Step Two

    Interview with a recruiter

    What ignites your spirit? This is where we’ll start getting to know all about you and what makes you tick – and it’s your first chance to get a feel for our culture. Chatting with a member of our talent team, you’ll learn more about On and how we work. We’ll learn about what motivates you and what you could bring to the team.

  • Step Three

    Interview with a hiring manager

    Ready to dig into the details? This second interview will be held with your future manager and will focus on the specifics of the job. Together you’ll delve into your unique skills and experiences and how they could be relevant at On. It's also a time to assess how you might feel working side-by-side. Bring any questions you have about the job, the team or anything else you might like to know – this is an open forum.

  • Step Four

    The Case Study

    What's your style? This task will help us understand how you think, face a challenge and give insight into your novel ideas. Designed to give everyone their best shot, your case study is based on something you might typically experience on the job. This is your chance to show us what you’ve got. So express yourself. Be you.

  • Step Five

    The Experience Day

    Your first taste of the Oniverse. This is a time to meet some of the people you'll be working closest with. In person or virtually, you'll get a feel for the day-to-day at On and the people who make it happen. You'll chat with a few potential teammates - the conversations will be as equally driven by the role and your experience as by our values. We believe how you do things is just as important as what you do.

  • Step Six

    The Result

    Are we a good fit? We’ll get together internally to share our feedback and decide if we’re a match. We know that job searching is a big time investment, so it’s not a decision we take lightly. It’s also time for you to reflect on the experience – are we the right place for you? No matter the outcome, we’ll give you meaningful feedback.

Step One:

It starts with you...

You'll start by submitting your application to a specific role.

We try to keep this step as simple as possible. We do get a lot of applications, but we review them all. We ask that you allow around 14 days for us to come back to you with a response. If you are a good fit to the role, someone will follow up with you within that window. If you didn't receive a reply, or were unsuccessful this time around, we encourage you to look for other possible matches at On.

The organisation

On
  • Sporting Goods & Apparel
  • Zurich, Switzerland
  • 2000+ employees
  • Website

Ignite the human spirit through movement

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