Senior Software Engineer — End-to-End Platform Owner

DeepL; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Hybrid work

Virtual Shares

Hack Fridays

30 days leave

Global team

Job summary

DeepL is a fast‑growing AI company building a scalable Language AI platform used by millions worldwide. As a Senior Engineer, you will shape the architecture and own critical systems from concept to production, balancing performance, reliability and business impact.

You will work in a high‑velocity environment, collaborating with product and engineering teams across regions, and you will apply the best tools for the job—from C#/.NET Core and Python to Kubernetes and React—to solve real customer

Qualifications

• Demonstrated ability to design scalable systems for high growth.
• Strong communication skills to translate tech concepts to non-technical stakeholders.
• Proven track record shipping customer-facing features that drive business value.

Responsibilities

• Own revenue-critical systems from problem definition through deployment and reliability.
• Architect for ambiguity and iteratively validate with real-world feedback.
• Bridge engineering and business by translating constraints into product decisions.
• Select and apply the right toolset for long-term maintainability and impact.

Skills

System thinking

High agency

Product fluency

Polyglot & adaptable

AI-native velocity

Tools

C#/.NET Core

Python

Kubernetes

React

Job description

DeepL is a fast‑growing AI company building a scalable Language AI platform used by millions worldwide. As a Senior Engineer, you will shape the architecture and own critical systems from concept to production, balancing performance, reliability and business impact.

You will work in a high‑velocity environment, collaborating with product and engineering teams across regions, and you will apply the best tools for the job—from C#/.NET Core and Python to Kubernetes and React—to solve real customer