Senior Fullstack Engineer - Localization

Meyandy LLC; Berlin; Hybrid; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Virtual Stock Option programme

L&D budget €2000

Corporate pension with 20% match

28 days paid leave

Urban Sports Club subsidy

Kita placement assistance

Sabbatical after 3 years

Referral bonus

Zusammenfassung

SumUp is building localization platforms used by merchants in 38 markets. As Senior Full Stack Engineer, you will own the systems, scope work, and ship integrations and tooling that automate and scale localization.

You will collaborate across product, CMS, CRM, marketing and design, apply Go and frontend React/TypeScript, and partner with other teams to enable global content delivery. This Berlin-based role emphasizes autonomy, end-to-end ownership, and continuous improvement in a fintech

Qualifikationen

• Strong backend engineering background with Go or similar languages.
• Experience building RESTful APIs in microservices or distributed systems.
• Knowledge of PostgreSQL and Kafka in production environments.
• Ability translating priorities from non-technical stakeholders into engineering work.
• Familiarity with React/TypeScript frontend and modern tooling.
• Experience with translation management systems (TMS) or localization platforms.

Aufgaben

• Design, build and optimise localization solutions across product, CMS, CRM, marketing and design systems.
• Improve localization management platform for visibility and reduced manual steps.
• Embed automated language and quality checks into localization workflows.
• Improve developer and content team experiences with localization tooling.
• Partner with other technical teams to enable localization across the stack.
• Explore AI and language tech to strengthen the localization stack and meet compliance.

Kenntnisse

Go

RESTful APIs

PostgreSQL

Kafka

React/TypeScript

Distributed systems

Tools

Python

Rust

C++

Frontend frameworks

Jobbeschreibung

The Localization team builds and owns the systems that make sure every merchant, in every one of our 38 markets, can understand and use our products in their own language. It's one of the most critical enablers of SumUp's global growth, sitting at the heart of how fast and how well we can go to market anywhere in the world.

As our Senior Full Stack Engineer, you'll bring dedicated engineering ownership by working closely with the team to scope, build and ship the systems, integrations and tooling accelerate the ongoing evolution of our localization platform towards greater automation, scalability and end-to-end integration. If you want autonomy, meaningful scope, and the chance to shape a growing function, this is the role.

What you'll do:

• Design, build and optimise localization solutions across product, CMS, CRM, marketing and design systems, so content moves faster without compromising quality
• Improve the localization management platform to give the team greater visibility and control while reducing manual steps
• Embed automated language and quality checks into several steps of the localization workflows, catching issues before they reach production
• Improve the experience for developers, designers, marketers and content teams by ensuring localization solutions support their processes and ways of working
• Partner with Web and Mobile, Website, Comms Platform and other technical teams to enable localization capabilities across the technology stack
• Explore how AI and language technology can strengthen and future-proof the localization stack, while ensuring solutions meet evolving compliance requirements.

You’ll be great for this role if:

• Strong background in backend engineering, ideally with Go (alternatively knowledge with Python, Rust or C++)
• Experience building and maintaining RESTful APIs in a microservices or distributed systems environment
• Working knowledge of databases such as PostgreSQL and event streaming tools such as Kafka
• Comfort translating priorities from non technical stakeholders into scoped, shippable engineering work
• Ability to operate independently across a fragmented, distributed system landscape, working within architecture owned by other teams
• Exposure to frontend frameworks such as Reactjs and languages like Typescript
• Experience working with translation management systems (TMS), or with the localization of web or mobile applications and other content platforms.

Why you should join SumUp

Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup

Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced

Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success

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