Senior Fullstack TypeScript Developer
SumUp Services GmbH
The Partnership and Enterprise squad is building the infrastructure that powers SumUp's partner channel, a business that supports around 800 active partners and is growing fast. As the squad's Senior Full-Stack Engineer, you'll take end-to-end ownership of the Partner Portal, the product that sits at the heart of how SumUp's partners manage their merchants, fees, and operations. This is an opportunity with real scope: you'll shape technical direction, collaborate closely with CRM engineers and product stakeholders, and ship features that directly reduce operational friction for the teams driving SumUp's sales growth.
Build and own the Partner Portal's frontend using React, TypeScript, and Next.Write and maintain back-end APIs, services, and data pipelines in TypeScript and Go that are scalable and built to support a fast-growing global platform
You have proven experience with TypeScript and React, building scalable, production-grade full stack applications using frameworks such as Next.Salesforce), and an openness to bridging the gap between CRM engineering and full stack development
A product mindset, connecting technical decisions to real business outcomes, and a genuine sense of ownership over the features you build from planning through to maintenance
Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
A corporate pension scheme where we match up to 20% of your contributions
Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
Break4me: 1-month sabbatical after 3 years of service
Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team
Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.
Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok.
If you don't tick every box, it's ok too because it means you have room to learn and develop your career at SumUp.
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