visa sponsorship developer backend Work, Jobs in london, eng (with Salaries)

Software Engineer (Backend)
Duffel —London
- Full-time
- APIs
Quick apply
Senior Backend Developer
Keepnet Labs Limited —London
- £55,000 - £65,000 a year
- Full-time
- Hybrid work
- Azure
- DevOps
- Java
- Annual leave
- Sick pay
Quick apply
2d
Full Stack Developer
QuantumLoopAI —London
- Full-time
- APIs
- AI
- Communication skills
Quick apply
Junior Web Developer (C# / Blazor)
Simpson Spence Young —London
- Microsoft Excel
- Azure
- Java
3d
Backend Engineer, LONDON
nsave —London
- Full-time
- In-person
- Annual leave
- Gym membership
Quick apply
Backend Engineer
Lightning AI —London
- £180,000 - £250,000 a year
- Hybrid work
- Azure
- AWS
- APIs
- Annual leave
Freelance Android Developer for Digital Asset Marketplace App (Fliprly)
Fliprly —London
- Remote
- Java
- APIs
Fullstack Engineer
Lightning AI —London
- £120,000 - £250,000 a year
- Hybrid work
- APIs
- Python
- Annual leave
Senior Software Developer
Aristocrat —London
- Full-time
- Azure
- DevOps
- Java
C# / .NET Developer – Front Office, FX & Orchestrade Systems
Margo Conseil —London
- Java
- SQL
- C++
Senior Frontend Engineer - RiskOS
Socure —London
- Full-time
- Hybrid work
- AWS
- JavaScript
- APIs
Intermediate Java Developer (Big Data)
Global Relay —London
- Hybrid work
- Java
- SQL
- Agile
Manager, Software Engineering - Web-based authoring
Unity Technologies —London
- £86,200 - £129,400 a year
- Remote
- Azure
- DevOps
- English
- Annual leave
- Employee assistance programme
Technical Lead
marshmallow —London
- Full-time
- Hybrid work
- Java
- SQL
- AWS
- Employee discount
Senior Software Developer (Java, Node) || Must have UK Government experience
Amber Labs —London
- Java
- AWS
- JavaScript
- Annual leave
- Employee discount
Quick apply
AI Engineer III
American Express —London
- Full-time
- Master's degree
- AWS
- APIs
- Life insurance
2d
Staff Software Engineer - CAT (Risk)
Fanatics Betting & Gaming —London
- Full-time
- Remote
- Java
- AWS
- Machine learning
Quick apply
Platform Support Engineer (EMEA)
Lightning AI —London
- £75,000 - £95,000 a year
- Weekend availability
- Software troubleshooting
- Machine learning
- Computer networking
- Annual leave
Senior AI Engineer I
American Express —London
- Full-time
- Master's degree
- AWS
- APIs
- Life insurance
2d
Senior AI Engineer II
American Express —London
- Full-time
- Master's degree
- AWS
- APIs
- Life insurance
2d

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Software Engineer (Backend)

Duffel
London

Quick apply

Job details

Full-time

Benefits

UK visa sponsorship
Sabbatical

Qualifications

Elixir
Kubernetes
Google Cloud Platform
APIs

Full job description

Software Engineer London | Full-time | Hybrid | Shoreditch/Liverpool Street

Create the Future of Travel With Us

Whether it's visiting the people closest to us, starting an exciting adventure, or a career-defining business trip, travel is essential. Yet we've all experienced the aches and pains of getting to our destination.

More than 4 billion airline passengers rely on technology that hasn't kept up with modern expectations. That's why we're rebuilding the infrastructure that underpins the travel industry - simplifying systems and building tools that will make the future of travel effortless.

We were part of Y Combinator S18's cohort and we're backed by Benchmark, Blossom, Index Ventures, and Kima Ventures - a fantastic set of investors that has helped build some of the world's largest companies.

Our London team is growing, and we're looking for talented people to join us on our journey.

Engineering at Duffel

We're building tools to simplify travel distribution, search, and booking through one seamless API. The technical challenge? Design a beautiful API, then integrate it with hundreds of travel providers - each with different systems and requirements - whilst delivering a fantastic developer experience.

We work with Elixir, Phoenix, Kubernetes, and Google Cloud Platform, but we value strong engineering fundamentals over specific tech experience.

You'll Thrive Here If:

You're passionate about designing beautiful APIs and creating great developer experiences

You have a high bar for code quality and API design

You have opinions on good engineering standards and processes as we define ours at Duffel

You think big picture - making tradeoffs between technical work and business impact

You communicate clearly, articulating what you're working on and why in a structured way

You thrive collaboratively - you believe in your methods but stay open to feedback and suggestions

Bonus: Experience in travel, flights, hotels, or cars

What You'll Get:

Competitive salary + equity (you'll own part of Duffel)

Work from anywhere policy

Duffel travel allowance (use what we build)

Matched parental leave

Sabbatical programme (3 months full pay)

Visa sponsorship available

Office in Shoreditch + regular team socials

Why Now Matters

You'll work on the core API powering millions of travel bookings. Early-stage role = outsized impact on how we build and scale.

Quick apply

Refine Your Search

visa sponsorship developer backend jobs in london, eng

Software Engineer (Backend)

Senior Backend Developer

Full Stack Developer

Junior Web Developer (C# / Blazor)

Backend Engineer, LONDON

Backend Engineer

Freelance Android Developer for Digital Asset Marketplace App (Fliprly)

Fullstack Engineer

Senior Software Developer

C# / .NET Developer – Front Office, FX & Orchestrade Systems

Senior Frontend Engineer - RiskOS

Intermediate Java Developer (Big Data)

Manager, Software Engineering - Web-based authoring

Technical Lead

Senior Software Developer (Java, Node) || Must have UK Government experience

AI Engineer III

Staff Software Engineer - CAT (Risk)

Platform Support Engineer (EMEA)

Senior AI Engineer I

Senior AI Engineer II

I want to receive the latest job alerts for visa sponsorship developer backend in london, eng

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