Backend Jobs in United Kingdom
There are 2,832 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 27%
- aws 24%
- python 23%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 516 · 18%
- Remote 285 · 10%
- Onsite 36 · 1%
Visa sponsorship offered in 53% of the 149 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 74
- 201-500 employees 20
- 1-10 employees 8
Senior .NET Developer - Backend & API Specialist (On-site)
The Senior .NET Developer will work on-site in South Bristol to design and build scalable backend services and APIs within an Agile team. The role focuses on C#, .NET Core/8, and ASP.NET, with additional responsibilities involving cloud platforms and frontend technologies.
Remote Senior Backend Engineer (Python, Flow Registry)
The Senior Backend Engineer will develop secure and scalable Flow Registry features for the GitLab platform using Python, LangChain, and LangGraph. This role involves collaborating with cross-functional teams to maintain high performance and improve testing within the Duo Workflow Service.
Founding Backend Engineer — Scale AI-Powered Energy Platform
SOLR AI is hiring a founding backend engineer to build a secure, scalable, and observable energy platform for enterprise clients. The role involves working with the CTO to deploy production ML models and implement robust infrastructure.
Senior Backend Engineer – Scalable AI Security Platform
Build and scale backend services for a cloud security platform using Go, GraphQL, and Kubernetes across AWS, Azure, and GCP.
Senior Backend Engineer (Node.js, TypeScript) - Remote UK
Senior Backend Engineer building scalable Node.js/TypeScript backend systems with Kafka-based event-driven architectures, working remotely from anywhere in the UK with a focus on uptime and reliability.
Go Backend Engineer – HPC Platform, Hybrid Cloud (London)
Designs and scales a high-performance computing (HPC) platform for hybrid cloud (AWS) to handle 1M concurrent tasks, improving reliability and operational efficiency with production-grade software.
Senior C# .NET Backend Engineer — Hybrid + £90k
Builds and maintains scalable, secure backend systems in C#/.NET Core for a FinTech company, owning features in Agile workflows while collaborating with product teams.
Low-Latency Backend Engineer - C#/.NET & Java (Hybrid)
Backend Engineer building a greenfield Market Data platform on .NET/Java with low-latency, high-throughput processing in AWS, collaborating with DevOps and Product teams in a hybrid role.
Senior Backend Engineer — API & Data Exports at Scale
Owns design, development, and optimization of scalable APIs and data export pipelines using Golang and cloud-native AWS services.
Senior Backend Engineer (Kotlin) — Fintech, Scale & Hybrid
Senior Backend Engineer on Kotlin/JVM scaling a fintech platform (Apron) powering Bill Pay and fraud detection services, in a hybrid London team.
Senior Backend Engineer — Hybrid, Growth‑Driven & Tech‑Savvy
Senior Backend Engineer at a growing insurance business, working with C#, .NET, SQL, and microservices following SOLID principles in a hybrid (3 days onsite) role in Liverpool.
Senior Backend Developer
Senior Backend Developer on a 3-month contract (with extension potential) building full-stack cloud apps with Python and AWS for a UK sustainable energy provider, in a hybrid role (1 day/week in London).
Java Backend Engineer - SC Clearance, Hybrid London
Java Backend Engineer designing and building secure, scalable enterprise backend systems using Java, Spring Boot, and microservices in a hybrid London role requiring active SC clearance.