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
Staff Backend Software Engineer
Lead the design and implementation of critical API services for a global financial data platform, modernizing architecture to support European expansion and regulatory compliance.
Back End Developer
Build and maintain backend services and AWS infrastructure for public sector systems using TypeScript, Terraform, and AWS, with monthly on-site days in Leeds.
Lead Backend Engineer | AI Startup in London (Equity)
Lead Backend Engineer building infrastructure, APIs, and LLM/RAG pipelines for a London AI startup, working closely with founders on scaling and architectural decisions.
Senior Python Backend Engineer – AI Data Pipelines (Hybrid)
Senior Python Backend Engineer owning the orchestration engine and scalable backend systems for AI data pipelines, using Python, FastAPI, AWS, Terraform, and CI/CD in a hybrid London role.
Senior Backend Engineer: Real-Time Data Platforms
The Senior Backend Engineer will design and maintain high-volume, real-time data platforms for a global energy trading firm. The role involves working with distributed systems using a stack centered on C#, .NET, SQL Server, Kafka, and Azure.
Senior Java Backend Developer — Live Casino Microservices
The Senior Java Developer will design and build scalable microservices for live casino games using Java, Kotlin, and Spring. The role involves deploying services on Kubernetes and leveraging cloud platforms to ensure high performance and security.
Backend Engineer: Scale Fintech & Data Systems
Emma is seeking a backend engineer to work directly with the CTO on scaling infrastructure and data processing for their finance app. The role involves working with a tech stack including TypeScript, React Native, gRPC, and Kubernetes.
Back End Engineer
Prima is seeking a Backend Engineer to design and maintain scalable services for their motor insurance platform using microservices and event-driven architectures. The role involves collaborating with cross-functional teams to deliver high-quality software solutions in an Agile environment.
Senior Backend Engineer, Platform & Integrations
Senior Backend Engineer building core systems for BJAK's AI Finance Agent—APIs, integrations with insurance providers, quote comparison, and secure customer infrastructure—using Node.js/TypeScript, PostgreSQL or MongoDB, and cloud platforms (AWS/GCP/Azure).
Staff/Senior Backend Engineer (Node.js)
Build and scale the Node.js-based backend for an AI-powered task-mining platform that maps employee workflows, spots inefficiencies, and recommends automation solutions.
Remote Backend Engineer (C#, AWS, SQL) - 3-6 Month Contract
Build a high-volume, scalable C# backend on AWS with SQL that integrates with an AI product for a LegalTech company on a 3–6 month contract.
Senior Java API Engineer — Hybrid Cloud Backend
Senior Java API Engineer building internet-facing HTTP APIs for pricing and promotions across Tesco's retail channels, using JVM technologies with TDD/BDD and SOLID design in a hybrid London office.
Senior Backend Engineer, Go Microservices (Remote/Hybrid)
Senior Backend Engineer building and scaling a Go microservices platform on Kubernetes, crafting REST APIs and evolving database schemas for a real-time play detection and online competition system.
Senior Backend Engineer
Designs and implements scalable data systems for a physics-AI platform, mentors engineers, and leads technical architecture while collaborating with clients.