Backend Jobs in United Kingdom
There are 2,829 open Backend jobs in United Kingdom on freehire right now. 602 of them were posted recently. The skills employers ask for most often are api, cloud and java.
Salary
| Currency | Period | 25th | Median | 75th | Postings |
|---|---|---|---|---|---|
| GBP | year | £75,000 | £95,000 | £110,000 | 215 |
| USD | year | $130,000 | $157,500 | $201,250 | 15 |
From postings that disclose pay. Currencies are counted separately, never converted.
Most requested skills
- api 38%
- cloud 29%
- java 28%
- ai 26%
- aws 24%
- python 23%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 515 · 18%
- Remote 284 · 10%
- Onsite 35 · 1%
Visa sponsorship offered in 53% of the 148 postings that state a position on it.
Seniority
- Senior 1,266
- Lead 190
- Staff 135
- Middle 70
- Junior 46
- Principal 37
Who is hiring
- 1000+ employees 234
- 501-1000 employees 139
- 51-200 employees 125
- 11-50 employees 73
- 201-500 employees 20
- 1-10 employees 8
Staff Backend Engineer (Python & Go) — Hybrid/Remote
Build and deploy AI-driven physics simulation models, ensuring scalability and observability while collaborating across engineering teams.
Senior Python Backend Engineer - Automation & 5G
Senior Python Developer building automation frameworks, backend services, and tooling for 5G and enterprise networks, using Python, REST APIs, Linux, Docker, and CI/CD.
Senior .NET Backend Engineer | C# & Microservices | Hybrid
Senior Backend Engineer building robust microservices with C#, .NET, RabbitMQ, Azure Cosmos DB, and SQL in a hybrid role focused on SOLID architecture and event-driven design.
AI-Powered Backend Engineer (Python) — FastAPI on AWS
Build backend APIs and services using Python, FastAPI, and AWS in a hybrid London role, collaborating with cross-functional teams in an AI-assisted development environment.
Staff Backend Engineer - Go, AI-Driven Platform, London
Lead backend architecture and engineering standards for an AI-driven platform, solving distributed systems challenges and mentoring engineers in Go.
Senior Java Backend Engineer | AI-Driven APIs & Cloud
Senior Java Backend Engineer at a UK digital consultancy, building scalable server-side services and APIs while driving agentic AI adoption within the engineering platform in an Agile/Scrum environment.
Senior Backend Engineer - AI-Driven Production Automation
Short-term contract building automation to keep a large-scale UGC application healthy across VR and mobile via cloud streaming, maintaining CI/CD pipelines and production stability.
Senior Lead Software Engineer- Backend Engineer - Chase UK
Senior Lead Backend Engineer building cloud-native microservices for Chase UK's digital banking platform, primarily using Java and AWS.
Senior C# Backend Engineer • .NET Core (Onsite, Newcastle)
Senior C# Developer leading backend development on a core platform using the latest C# .NET Core technologies, working onsite in Newcastle with a small team through the full SDLC.
Senior Backend Engineer (Node.js) — Own Impact at FinTech
Senior backend engineer building the UK's first finance app, working with the CTO on backend infrastructure and data processing using Node.js, TypeScript, gRPC, and modern databases in a fast-paced FinTech.
Senior Backend Engineer — Java & Spring Boot, Cloud-Ready
Senior Backend Engineer designing and building scalable cloud-based services with Java and Spring Boot, while mentoring engineers and driving architectural decisions.
C/C++ Backend Engineer — High-Performance Networks (Hybrid)
C/C++ backend engineer building high-performance network emulation systems on Linux with GNU tools in a hybrid R&D team, owning backend development and mentoring juniors.
Senior Java Backend Engineer - Fintech, Stock Options
Build and optimize backend systems for cross-border money movement, including card payments, treasury, and crypto liquidity using Java 25.
London C# .NET Backend Engineer | SQL & Design Patterns
Backend C# .NET Developer working onsite in London, building robust .NET services and collaborating with database teams at a global sports trading firm.
Senior Backend Engineer - C#/.NET, London, £150k + Bonus
Senior hands-on Backend Engineer building scalable backend services in C#/.NET and ASP.NET with database systems for a global sports trading business, working onsite in London Monday–Friday.
Senior Backend Engineer (Java/C++) – SC Cleared, Linux
Senior Backend Engineer owning high-performance Java/C++ backend systems, APIs, and microservices in Linux environments, with technical leadership, mentoring, and DevSecOps responsibilities.
Backend Engineer (Python/Rust) – AI Security R&D, Cambridge
Backend Software Engineer on a greenfield cybersecurity project in Cambridge, primarily coding in Python with exposure to Rust and TypeScript alongside AI-based security technologies.
Remote .NET Backend Engineer – Real-Time Betting & KYC
Build and maintain high-throughput .NET backend systems for a gambling platform, including real-time odds feeds, KYC/casino integrations, and Azure-hosted infrastructure, with optional full-stack work in TypeScript/React Native.