Senior Fullstack Software Engineer (AI)

TL;DR

Senior Fullstack Software Engineer (AI): Designing and shipping complex, high-stakes revenue-critical features for an Enterprise AI platform with an accent on identity, monetization, and compliance. Focus on architecting the "Financial Nervous System" using React and C#/.NET, ensuring system reliability, and translating business goals into scalable technical architectures.

Location: Hybrid in London, Munich, Cologne, Amsterdam, or Berlin

Company

DeepL is a global AI product and research company focused on building secure, intelligent solutions to complex business problems, trusted by over 200,000 business customers and millions of individuals.

What you will do

• Architect and ship complex, high-stakes features for Enterprise Licensing and Automated Seat Provisioning, ensuring instant UX and immutable billing.
• Build tools empowering CIOs and IT Directors to manage DeepL, translating complex backend constraints into simple UI workflows.
• Bridge the gap between Engineering and Business, working with Sales, Product, and Finance to translate ARR goals into scalable technical architectures.
• Drive system reliability, building for idempotency and resilience to ensure auditable, flawless financial data and a high-velocity frontend experience.

Requirements

• Possess a "Product-First" Mindset, deeply caring about the customer journey and focusing on features that close Enterprise deals.
• Demonstrate Full-Stack Fluency, comfortable designing React components and debugging distributed transactions in C#/.NET.
• Show Enterprise Domain Curiosity, interested in B2B SaaS problems like Identity (SAML/SSO), Monetization, and Compliance.
• Exhibit High Agency, taking initiative to automate slow processes or improve unclear documentation.
• Leverage AI-Native Velocity, using AI-powered tools like GitHub Copilot or Claude to accelerate development and focus on high-value architectural decisions.

Culture & Benefits

• Join a diverse and internationally distributed team with over 90 nationalities, actively expanding globally.
• Benefit from open communication and regular feedback, valuing smooth collaboration and an empathetic, growth mindset.
• Enjoy a hybrid work schedule with flexible hours, coming into the office twice a week to foster direct team engagement.
• Receive Virtual Shares, linking your contribution directly to DeepL’s growth and providing a stake in the company's future.
• Participate in regular in-person team events, from local gatherings to company-wide meetups.
• Engage in monthly full-day hacking sessions to pursue passion projects and collaborate across teams.
• Benefit from 30 days of annual leave (excluding public holidays) and access to mental health resources.