Senior Full Stack Engineer - Sidekick
Location
Berlin, Berlin
Job Type
Full-time
Category
Computer Occupations
Posted
June 18, 2026
<p class="p1">The Sidekick team builds and owns the progressive web app that SumUps field sales agents rely on every day, a tool that brings together everything a seller needs in one place: creating offers on the go, signing up new merchants, managing hardware sales, and tracking commissions in real time. It's one of our most impactful internal products, sitting at the heart of a primary revenue driver for the business.</p>
<p class="p1">As our Senior Full Stack Engineer, you'll take genuine ownership of features end-to-end, from scoping through to production, working closely with product, engaging directly with sales stakeholders, and having a real say in what gets built and why. If you want autonomy, meaningful scope, and work that directly enables the people driving SumUp's growth, this is the role.</p>
<p class="p3"><strong>What you'll do</strong></p>
<ul class="ul1"&...
<p class="p1">As our Senior Full Stack Engineer, you'll take genuine ownership of features end-to-end, from scoping through to production, working closely with product, engaging directly with sales stakeholders, and having a real say in what gets built and why. If you want autonomy, meaningful scope, and work that directly enables the people driving SumUp's growth, this is the role.</p>
<p class="p3"><strong>What you'll do</strong></p>
<ul class="ul1"&...