Backend Jobs in United Kingdom
There are 2,839 open Backend jobs in United Kingdom on freehire right now. 634 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 | 212 |
| 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 27%
- ai 27%
- aws 23%
- python 23%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 520 · 18%
- Remote 284 · 10%
- Onsite 36 · 1%
Visa sponsorship offered in 53% of the 151 postings that state a position on it.
Seniority
- Senior 1,275
- Lead 190
- Staff 134
- Middle 70
- Junior 47
- Principal 34
Who is hiring
- 1000+ employees 233
- 501-1000 employees 139
- 51-200 employees 125
- 11-50 employees 75
- 201-500 employees 20
- 1-10 employees 8
Node.js/TypeScript Backend Engineer
Builds and maintains scalable Node.js/TypeScript microservices for Sainsbury’s marketing and loyalty platforms, handling millions of daily transactions and integrating with APIs, Kafka, and Snowflake.
Backend Engineer for Acquiring Risk
Backend Engineer builds and maintains a fraud-detection engine for Wise’s acquiring products, using Java, Kafka, and SQL to balance fast payments with low risk.
Senior Python Backend Engineer – FastAPI, AWS, Hybrid (London)
Builds FastAPI backend services in Python, integrates LLMs and payment systems, and deploys on AWS in a collaborative London office.
Lead Backend Engineer: Azure-Driven Integrations Leader
Lead a small team to build and maintain Azure-driven integration services using C#/.NET, reviewing code and shaping API architecture while mentoring engineers.
Rust/C++ Backend Engineer for High-Throughput AI API
Owns the API and inference platform for a high-throughput AI service, using Rust/C++ to deliver low-latency, distributed systems at massive scale.
Senior Go Backend Engineer — Hybrid, Scalable
Senior Backend Engineer builds and maintains scalable Go microservices, APIs, and cloud infrastructure for a privacy-first adtech data platform.
Senior Backend Engineer - Dev Tooling & Offchain (Equity)
Builds offchain infrastructure and developer tooling for EVM-based smart contracts using TypeScript and Solidity in a web3 startup.
Senior .NET Backend Engineer – Cloud-Native, AWS Serverless
Architects and builds high-performance, distributed .NET backend services on AWS Serverless for a proptech platform serving estate agencies.
Hybrid Backend Engineer, Rust — Global Fintech Clearing
Builds and maintains distributed backend systems in Rust for a fintech company, focusing on API design and infrastructure reliability.
Senior Backend Engineer | AI Platform
Build and maintain the AI platform infrastructure that powers Plum’s fintech app, using Python, FastAPI, and agentic frameworks on GCP.
Remote Backend SaaS Engineer — Python & APIs
Builds and maintains Python-based backend services for open-source SaaS tools using Flask or Django, collaborating remotely with a UK-based team.
Java Backend Engineer - Cloud Microservices | TDD & Pairing
Builds and deploys Java-based microservices in the cloud as part of an offshore delivery team, following TDD and pair-programming practices.
Senior .NET Backend Engineer – Hybrid, Growth & Perks
Build and deploy scalable .NET microservices on AWS, mentor junior engineers, and own features from design to production in a hybrid role at Europe’s leading train-ticket platform.
Senior Backend Engineer — Cloud Security & Scalable Systems
Build and maintain backend services for a cloud security platform using AWS/GCP and microservices architecture.