Backend Jobs in United Kingdom
There are 2,855 open Backend jobs in United Kingdom on freehire right now. 628 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 | 214 |
| 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 24%
- python 23%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 522 · 18%
- Remote 285 · 10%
- Onsite 36 · 1%
Visa sponsorship offered in 53% of the 149 postings that state a position on it.
Seniority
- Senior 1,277
- Lead 193
- Staff 135
- Middle 70
- Junior 46
- Principal 36
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
Associate Backend Python Engineer - Predictive AI
Build and maintain core backend services in Python for a predictive AI platform, collaborating with data scientists and platform partners.
.NET backend
Senior .NET backend developer building RESTful APIs and services with C#, .NET Core, and ASP.NET MVC, using MS SQL Server and Git.
Backend Team Lead
Leads the backend team building an AI-powered platform using modern LLM technologies, owning platform services and scaling production systems.
Backend Java Engineer - Microservices & Kafka
Builds and maintains Java-based microservices and Kafka-powered event-driven systems using Docker and Kubernetes.
Backend Engineer - Scalable Microservices for AI Platform
Build and maintain scalable microservices for an AI platform using PostgreSQL and Docker in a cloud-native environment.
Senior Backend Architect — AI-Driven Systems & Scale
Senior Backend Engineer building and scaling AI-driven systems in Java and Python on AWS, leading architecture and mentoring junior engineers.
C# Backend Engineer — AI‑Ready, API & Cloud Scale
Build and maintain C# backend APIs and cloud/edge services for a connected-home beer ecosystem, collaborating across teams to deliver scalable, secure software with AI-assisted development.
Backend/API Engineer, Money as a Service
Build and maintain global money-movement APIs and services for Stripe Treasury, handling billions of requests while collaborating with cross-functional teams.
Senior Backend Engineer — AI Finance Platform (Equity)
Senior Backend Engineer building scalable infrastructure for an AI-powered financial workspace that processes sensitive data, deploys ML models, and ensures enterprise-grade security for top-tier financial institutions.
Backend Engineer II — AI-Enabled Pricing at Scale
Builds high-throughput pricing microservices in Java/Scala/Kotlin on AWS/Kinesis, with potential to integrate AI into real-time travel pricing systems.
Senior Backend Engineer — AI-Driven Microservices & APIs
Designs and builds scalable Java/Spring Boot microservices and APIs with agentic AI features, mentoring junior engineers.
Python Backend Engineer — AI Security, Hybrid, up to £80k
Builds a new AI security product in Python with Rust, TypeScript, and C++ in a fast-paced R&D team based in London.
Backend Engineer, AI-Driven Search & Recommendations (London)
Builds backend services for Joybuy’s AI-driven search and recommendation engine using Java/Spring Boot, collaborating with ML engineers to scale customer-facing features.
Senior Backend Engineer – AI Healthcare (Equity from Day One)
Senior Backend Engineer at Heidi building Python-based cloud services and APIs for an AI Care Partner that helps clinicians document and deliver care.
Senior Java Backend Lead & Architect
Leads backend architecture and team delivery in Java, designing microservices and RESTful APIs while modernizing systems and enforcing clean code practices.