Software Engineer, Backend - Duffel, London

Vacations Worldwide; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Duffel is hiring a Backend Software Engineer in London. You will work on systems that search, price, book and service flights through airline distribution channels.

This role is for backend engineers who enjoy complex domain modelling and integration work, and care about correctness over novelty.

The role is based in London with a hybrid arrangement (Shoreditch / Liverpool Street).

Responsibilities

• Work on systems that search, price, book and service flights through airline distribution channels.
• Tackle complex domain modelling and integration work with a focus on correctness.

Job description

• Software Engineer, Backend - Duffel, London

Software Engineer, Backend - Duffel, London

Employer: Duffel | Location: London — hybrid, Shoreditch / Liverpool Street | Type: Full-time

The posting is headed “Create the Future of Travel With Us” and makes the case directly: whether it is visiting the people closest to us, starting an exciting adventure or a career-defining business trip, travel is essential — yet more than four billion airline passengers rely on technology that has not kept up with modern expectations.

Backend engineering at Duffel means working on the systems that search, price, book and service flights through airline distribution channels. It is genuinely hard domain territory: legacy protocols, strict correctness requirements and unforgiving latency budgets.

Good fit for: backend engineers who enjoy complex domain modelling and integration work, and want a product where correctness matters more than novelty.