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Senior Software Engineer | Enterprise | Full-Stack

DeepL - London, United Kingdom - Hybrid - posted 2026-09-15

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DeepL is a global AI company building secure, intelligent solutions for complex business problems. The company operates a Language AI platform trusted by over 200,000 business customers and millions of individuals across 228 markets, offering human-like translation, improved writing, and real-time voice translation. Founded in 2017 with ~1,000 employees and backed by Benchmark, IVP, and Index Ventures, DeepL is transitioning from a consumer-focused app to a mission-critical Enterprise Platform. You will join the Business Acceleration Track (BAT), described as the engine room of DeepL's global growth. While research teams build the models, BAT builds the Revenue Flywheel enabling 200,000+ enterprises (including Fortune 500 companies) to use and pay for them at scale. You will be part of the team architecting the "Financial Nervous System" of DeepL—handling Identity & Access Management (SSO, SCIM), complex multi-seat subscription architectures, and fraud prevention. Key Responsibilities: - Architect revenue-critical flows: design and ship complex, high-stakes features like Enterprise Licensing or Automated Seat Provisioning, ensuring instant UX and immutable billing ledgers. - Own the Enterprise Experience: build tools empowering CIOs and IT Directors to manage DeepL, translating complex backend constraints (RBAC, rate limits) into elegant UI workflows. - Bridge Engineering and Business: work directly with Sales, Product, and Finance to translate Annual Recurring Revenue goals into scalable technical architectures. - Drive System Reliability: build for idempotency and resilience, ensuring financial data is auditable and flawless while maintaining high-velocity frontend experience. You will own the full vertical—from user-facing Admin Console in React to distributed billing logic in C#/.NET. The role emphasizes that a perfect AI model is useless if a Global Enterprise cannot provision it securely to 50,000 employees. Desired Qualities: - Product-first mindset: care deeply about customer journey and how features close Enterprise deals. - Full-stack fluency: comfortable traversing the stack, designing React components in the morning and debugging distributed transactions in the afternoon. - Enterprise domain curiosity: interested in hard B2B SaaS problems—Identity (SAML/SSO), Monetization, Compliance—understanding these as pillars of enterprise trust. - High agency: proactive problem-solving; if billing reconciliation is slow, automate it; if API documentation is unclear, fix it. - AI-native velocity: leverage AI-powered tools (GitHub Copilot, Claude) to accelerate velocity, using AI for boilerplate, test generation, and debugging to focus cognitive energy on high-value architectural decisions. DeepL operates a Unified Engineering Pipeline, hiring for the company rather than specific teams. If you pass the bar, you will be matched to the highest-priority role fitting your skillset—whether Core Product, Platform, Voice, or Enterprise. The company offers hybrid work (twice weekly in-office), flexible hours, 30 days annual leave, virtual shares for all employees, monthly Hack Fridays, regular in-person team events, and competitive benefits tailored to location. The team is internationally distributed across 90+ nationalities, with offices in the UK, Germany, the Netherlands, Poland, the US, and Japan.

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