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# Software Engineer | Language Products | Full-Stack

- **Company:** DeepL
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Microsoft Word, Application Programming Interfaces (APIs), Artificial Intelligence, C Sharp (Programming Language), Software Debugging, Design of User Interfaces, Python (Programming Language), Microsoft PowerPoint, Application Enhancement Tool, .NET Core, ReactJS, Backend, Api Management
- **Published:** August 9, 2026
- **Apply:** https://eu.experteer.com/career/view-jobs/software-engineer-%7C-language-products-%7C-full-stack-london-grossbritannien-58865353

## About the Role

Design and performance * Collaborate with Research, Product, and Design to translate AI constraints into intuitive UX * Leverage AI-powered tools to speed up development, testing, and debugging * Build transparency and performance metrics into the product Tasks * Full-Stack fluency with interactive UI in React and backend in C#/.NET Core or Python * Strong product mindset focused on user adoption and reducing friction * High agency with bias for action and ability to unblock oneself and the team * System thinker for UI/UX and scalable backend architectures * Experience handling large document states and complex terminology rules (Glossaries) Key requirements * Hybrid work * 30 days of annual leave * Virtual Shares * Hack Fridays * Regular in-person team events * Competitive benefits tailored to location

## Description

Experteer Overview In this role you will shape DeepL's flagship translation products, building user-facing features and robust backend systems that keep brand voice consistent across 100+ languages. You will work closely with Research, Product, and Design to translate AI constraints into intuitive UX for both consumers and enterprise teams. Expect to tackle complex document formats, multi-party workflows, and performance challenges with a product-first lens. You'll accelerate delivery using AI-assisted tooling, shaping a highly scalable, user-centric platform with meaningful impact. Pay / Benefits * Architect and implement end-to-end, user-facing features for core translation products * Develop backend logic to preserve formatting when translating complex document formats (PDF, Word, PowerPoint) * Create interfaces that balance instant UX for B2C users with enterprise-grade collaboration and localization workflows * Make high-stakes technical decisions on state management, API integrations, and performance * Collaborate with Research, Product, and Design to translate AI constraints into intuitive UX * Leverage AI-powered tools to speed up development, testing, and debugging * Build transparency and performance metrics into the product Tasks * Full-Stack fluency with interactive UI in React and backend in C#/.NET Core or Python * Strong product mindset focused on user adoption and reducing friction * High agency with bias for action and ability to unblock oneself and the team * System thinker for UI/UX and scalable backend architectures * Experience handling large document states and complex terminology rules (Glossaries) Key requirements * Hybrid work * 30 days of annual leave * Virtual Shares * Hack Fridays * Regular in-person team events * Competitive benefits tailored to location


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