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
Senior Backend Engineer for AI Agent Orchestration
Senior Backend Engineer building orchestration frameworks and state management for Lightning AI’s agent platform, enabling production-grade AI applications.
Senior/Lead Backend Engineer
Build backend infrastructure for a clean-energy startup, including real-time energy data pipelines, digital twins, and messaging interfaces for a consumer-facing app.
Senior Backend Engineer — AI Agent Platform
Build backend systems for an AI agent platform, focusing on scalable APIs, tool orchestration, memory management, and state handling.
Senior Software Engineer I - Backend (Java) - Business Accounting Integrations and Reporting
Build backend services in Java that connect business accounting software to Wise, improving reconciliation and financial reporting for global customers.
Senior Software Engineer I - Acquiring Platform - Backend (Java)
Build and scale Wise’s merchant-payment backend in Java, expanding API coverage for new payment methods (Google Pay, Apple Pay, PIX, UPI) and integrating with major ecommerce platforms.
Senior Software Engineer - ML Platform & Scalable Backend
Build and maintain scalable backend services and ML infrastructure for a machine-learning platform using Python, Rust, Kubernetes, and distributed systems.
Senior Software Engineer - Backend
Lead backend engineering teams to build cloud-native, data-driven platforms and APIs for a global credit ratings and financial data provider, using Java/Spring Boot, Python, and AWS.
Staff .Net Backend Engineer
Build and ship high-performance, serverless .NET backend services in C#/.NET Core 8/9 on AWS Lambda, designing data models across Aurora MySQL and DynamoDB, and mentoring engineers while driving product solutions end-to-end.
Senior Backend Engineer - Global Transactions & Ledger
Senior Backend Engineer at Fanatics Collectibles building real-time transaction systems, multi-currency payment support, and a shared ledger layer for global ecommerce expansion.
Senior .NET Core Backend Engineer – FinTech, Newcastle | £130k+
Senior .NET Core backend engineer building financial systems in C# for a growing FinTech scale-up in Newcastle.
Backend Engineer in London - LA International Computer Consultants Ltd
Builds and maintains secure, scalable backend services using Python and/or Go in Kubernetes environments.
Staff Backend Engineer for AI-Driven Context Layer SaaS
Build production services for an AI-native context layer SaaS, designing ingestion, storage, and retrieval APIs and enabling multi-tenant SaaS with a focus on reliability and observability.
Senior Python Backend Engineer: Geospatial AI for Arctic
Build backend services for an AI platform that processes satellite imagery and geospatial data using Python, taking projects from concept to production.
Senior Backend Engineer (Java/Scala) – AI‑Driven, Hybrid
Senior Backend Engineer builds and scales distributed systems in Java/Scala to power Ocado’s AI-driven mobile fulfilment platform, mentors peers, and drives technical initiatives.
Senior Backend Engineer for Enterprise Partner Platform
Build backend microservices and RBAC for Wise’s Partner Experience team, enabling enterprise partners to integrate and operate securely on the Wise platform.
Senior Backend Engineer II - Europe Account
Build and scale Wise’s backend services in Java/Kotlin to expand local account features for European markets, collaborating with product and risk teams to deliver customer-focused financial tools.
Senior Java Backend Engineer - Cloud Security
Build cloud-security products in Java/Golang, deploying and operating them on Kubernetes while solving complex engineering challenges.