Backend Jobs in United Kingdom
There are 2,829 open Backend jobs in United Kingdom on freehire right now. 603 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 285 · 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 126
- 11-50 employees 73
- 201-500 employees 20
- 1-10 employees 8
Senior Backend Engineer in Cardiff
Senior Backend/Site Reliability Engineer building and operating reliable, scalable cloud platform services for a UK government department, primarily using Python with a focus on observability, CI/CD and distributed systems.
Hybrid Backend Engineer — Commercial Planning
Build and lead delivery of cloud-native backend services for Marks & Spencer's commercial planning platforms (Fashion, Home & Beauty), mentoring engineers and collaborating with architecture and product teams in a hybrid London role.
Senior Backend Engineer - Cross-Border Payments Platform
Senior backend engineer owning end-to-end backend services for Xe.com's cross-border payments platform, from API design through deployment, while mentoring engineers and driving architecture decisions using agentic coding tools.
Staff Backend Engineer, Vaults
Staff Backend Engineer building DeFi vault infrastructure at Aave Labs — systems between onchain protocols and applications, including vault management, allocation solvers, blockchain indexing, and APIs using Rust and PostgreSQL.
Java Backend Engineer — Spring Boot, Growth Path & Training
Build robust backend services in Java using Spring Boot, Hibernate, MySQL/PostgreSQL, and Git in an office-based role focused on code quality and ticket management, with training and a path to senior technical expert.
Backend Engineer, AI (Agent Systems)
Build and operate the inference and orchestration layer powering AI interactions, designing pipelines and managing production concerns like monitoring and latency optimization. Core tech includes Python, Node.js, PyTorch, LLMs, SQL/NoSQL, Kubernetes, and Docker.
Backend Java Developer - Birmingham • Hybrid • £50–65k • Not London
Develops core backend services in Java for a data governance platform, focusing on access control, SQL planning, and high-throughput infrastructure.
Remote Senior Backend Engineer - Ruby & AI-Driven Systems
The Senior Backend Engineer will build intent-to-code features for GitLab using Ruby on Rails, Python, and LLM interfaces. This role involves end-to-end feature development, mentoring team members, and collaborating within a distributed, all-remote environment.
Senior Backend Engineer - Node/TS | Hybrid UK Healthcare Platform
Care ADHD is looking for a Senior Backend Engineer to develop and maintain scalable backend services using Node.js and TypeScript. This hybrid role involves collaborating with cross-functional teams to build secure APIs and improve engineering standards.
Senior Backend Engineer - Cloud Video Security (Hybrid UK)
The Senior Backend Engineer will design, develop, and maintain cloud-based distributed systems for video security, access control, and sensor management. This hybrid role involves working on backend ecosystems and CI/CD pipelines within the Alta Video Engineering team.
Senior Backend Python Engineer - AI Data Pipelines, Remote
Senior Backend Engineer owning an orchestration engine for an AI-native data platform, using Python, FastAPI, AWS, and Terraform in a high-velocity production setting with hybrid work in London.
Senior Backend Engineer — AI-Driven Platform (Remote/London)
The Senior Backend Engineer will build and maintain production-grade Python backends using FastAPI to power AI-driven investment tools. The role involves managing orchestration layers for agentic AI and guiding architectural decisions as the engineering team scales.
Backend .NET Developer (C#/Azure) – FinTech in Kent
Backend .NET Developer building REST APIs with C#, .NET Core, Azure, SQL Server, and messaging queues (Azure Service Bus, RabbitMQ) for a financial services company in a hybrid role.