Full-Stack Engineer (AI)

Location: London, UK; hybrid work with office attendance twice a week

Company

DeepL is an AI product and research company building an in-house Language AI platform for individuals and enterprises worldwide.

What you will do

• Design and ship revenue-critical enterprise features such as licensing and automated seat provisioning.
• Build React-based admin consoles for CIOs and IT directors.
• Develop distributed billing logic and subscription architectures in C#/.NET.
• Translate business and revenue goals into scalable technical architectures with Sales, Product, and Finance.
• Build reliable, idempotent, resilient, and auditable financial systems.
• Contribute across DeepL’s unified engineering pipeline, including product, platform, voice, or enterprise initiatives.

Requirements

• Full-stack fluency across React and C#/.NET.
• Understanding of enterprise identity, including RBAC, SAML, SSO, and SCIM.
• Interest in B2B SaaS domains such as monetization, subscription billing, and compliance.
• Ability to design resilient systems with idempotency, distributed transactions, and auditable financial data.
• Product-first mindset and ability to collaborate directly with Sales, Product, and Finance.
• Experience using AI-powered development tools for coding, testing, and debugging.

Culture & Benefits

• Internationally distributed workforce representing more than 90 nationalities.
• Flexible working hours and hybrid collaboration.
• Virtual Shares for every employee.
• Regular in-person team events and monthly full-day Hack Fridays.
• 30 days of annual leave excluding public holidays, plus mental health resources.
• Benefits tailored to the employee’s location.

Hiring process

• DeepL uses a unified engineering pipeline and hires for the company rather than only one team.
• Successful candidates are matched to the highest-priority role aligned with their skills.