Backend Jobs in United Kingdom
There are 2,898 open Backend jobs in United Kingdom on freehire right now. 646 of them were posted recently. The skills employers ask for most often are api, cloud and ai.
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 39%
- cloud 30%
- ai 28%
- java 28%
- aws 24%
- python 24%
- microservices 18%
- ci-cd 17%
How the work is done
- Hybrid 538 · 19%
- Remote 311 · 11%
- Onsite 39 · 1%
Visa sponsorship offered in 54% of the 166 postings that state a position on it.
Seniority
- Senior 1,306
- Lead 191
- Staff 143
- Middle 72
- Junior 47
- Principal 37
Who is hiring
- 1000+ employees 243
- 501-1000 employees 143
- 51-200 employees 129
- 11-50 employees 76
- 201-500 employees 20
- 1-10 employees 8
Senior Backend Engineer, Payments Platform (Kotlin/Java)
Builds and maintains high-scale payment rails in Java/Kotlin with Spring Boot, designing RESTful APIs for Wise’s global customer base.
Backend Engineer - Scalable Pricing & AI
Designs and builds high-throughput pricing services for a travel platform using Java/Scala/Kotlin, Redis, Kafka Streams, and AWS.
Senior Backend Engineer - Build Scalable FinTech APIs
Build and maintain scalable backend services and APIs for a fintech money app, focusing on payments, fraud, and risk systems using Java and modern DevOps practices.
Web3 Backend Engineer for Digital Assets Platform
Build and deploy Web3-native components for Citi’s digital asset platform, integrating blockchain protocols and tokenization with Java/Spring or Node.js backends.
Senior .NET Backend Engineer — Travel Platform (Hybrid)
Builds and maintains high-volume .NET backend services for a global travel platform, focusing on journey search, e-commerce, and operator integrations.
Senior Ruby on Rails Backend Engineer for Scalable Ops
Senior Ruby on Rails engineer building and scaling backend systems for live production environments, optimizing databases and integrations to ensure reliability.
Backend Engineer (Java) — Build Fintech APIs & Microservices
Build and maintain scalable backend services and RESTful APIs for fintech products using Java, focusing on reliability, security, and performance.
Staff Backend Architect — Scalable Mission-Critical Systems
Design and lead backend systems for Axon’s DEMS product, focusing on scalable, mission-critical infrastructure in a hybrid role.
Staff Backend Engineer — Hybrid London Architect & Leader
Designs and builds scalable backend systems in Java/Python/Go, handling large data volumes while collaborating with cross-functional teams to deliver high-quality software.
Backend Engineer, Payments Infra (Java/Kotlin, AWS)
Build backend services in Java/Kotlin with Spring Boot on AWS to power Wise’s card pay-in system, handling millions of users and financial data with PostgreSQL and Kafka.
Trading Backend Engineer (Kotlin/Python) – Real-Time
Build and maintain core infrastructure for a global crypto trading platform, focusing on high-volume order management, real-time market data, and low-latency APIs.
Senior Java Backend Engineer — Real-Time Personalisation
Build low-latency Java/Spring Boot microservices and event-driven pipelines (Kafka, Flink) to power real-time personalization across Tesco’s web, mobile, and in-store channels.
Golang Backend Engineer — Crypto & Exchange Tech
Build and maintain backend services for a crypto exchange, including token exchange logic, investor profiles, crowdfunding portals, and analytics dashboards using Golang and Ethereum nodes.
Senior Backend Engineer - Real-Time Blockchain Risk
Design and scale backend systems that process real-time blockchain data to detect and prevent fraudulent transactions for wallets, exchanges, and fintech platforms.
Lead Backend Engineer (Python/TypeScript) - Newcastle
Leads backend development in Python/TypeScript, building APIs and microservices, mentoring teams, and shaping product vision in a FinTech consultancy.