Founding Senior Engineer — Proactive AI Desktop Platform

Dex; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Dex is seeking a Founding Senior Engineer to own and shape a full-stack desktop application and its backend, working directly with AI researchers. You will design and implement algorithms and data ingestion pipelines, influencing architecture across the entire stack.

This role demands leadership in building a complete system from first principles and operating in a small, high-caliber team. You will work in London (Elephant and Castle) five days a week, taking charge of shipping robust products

Qualifications

• PhD or demonstrable ownership of a hard, end-to-end technical project.
• 5+ years building complex, comparable systems.
• Strong in TypeScript, Python, Rust, or C++, with ability to master new languages.
• Experience owning the full engineering lifecycle: shipping robust products from user requests.
• Comfortable with cloud infrastructure and SQL/NoSQL databases.
• Willingness to work in person in London five days a week.

Responsibilities

• Build and own the desktop application, front and back end.
• Develop core algorithms bridging the AI model and user actions.
• Design and implement backend systems for continuous data ingestion and model maintenance.
• Collaborate with AI researchers to translate research into robust product features.
• Drive architectural decisions across the full stack from UI to data persistence.

Job description

Dex is seeking a Founding Senior Engineer to own and shape a full-stack desktop application and its backend, working directly with AI researchers. You will design and implement algorithms and data ingestion pipelines, influencing architecture across the entire stack.

This role demands leadership in building a complete system from first principles and operating in a small, high-caliber team. You will work in London (Elephant and Castle) five days a week, taking charge of shipping robust products