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Backend Jobs in United Kingdom

There are 2,114 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 ai.

Salary

CurrencyPeriod25thMedian75thPostings
GBPyear£77,625£95,000£118,750122

From postings that disclose pay. Currencies are counted separately, never converted.

Most requested skills

  • api 46%
  • cloud 33%
  • ai 32%
  • java 28%
  • python 27%
  • aws 26%
  • ci-cd 22%
  • microservices 20%

How the work is done

  • Hybrid 409 · 19%
  • Remote 264 · 12%
  • Onsite 32 · 2%

Visa sponsorship offered in 54% of the 112 postings that state a position on it.

Seniority

  • Senior 883
  • Lead 134
  • Staff 80
  • Middle 61
  • Principal 42
  • Junior 20

Who is hiring

  • 1000+ employees 113
  • 501-1000 employees 47
  • 51-200 employees 44
  • 11-50 employees 24
  • 1-10 employees 7
  • 201-500 employees 4
2.1K jobs
Blumberg Capital Company
3 views 2 months ago

Staff Backend Engineer: Lead EU API & Global Scale

Open 49d UKStaff
United Kingdom

The Staff Backend Engineer will lead the design and implementation of critical API services for a financial data platform, focusing on European expansion and architectural modernization. The role involves mentoring engineers and ensuring compliance with regulatory standards.
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Futureheads
10 views 2 months ago

Senior Go Backend Engineer — Remote UK + Equity

Open 49d UKSenior
United Kingdom

Senior Backend Engineer designing, building, and scaling backend services for an art marketplace, primarily using Go and Google Cloud Platform.

API Cloud GCP
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Monzoreferrals
3 views 2 months ago

Remote Backend Engineer II — Build Scalable Banking Platform

Open 49d UK
United Kingdom

Backend Engineer II building and supporting scalable services on Monzo's banking platform using Go, Java, C, and Scala within a cross-disciplinary squad.

Java Scala
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beqom International
12 views 2 months ago

Senior Agentic Backend Engineer

Open 49d UKSenior
United Kingdom

Senior engineer who authors specifications for AI agents to build production backend services (.NET/C#, PostgreSQL) on a multi-tenant data platform for a compensation/pay equity SaaS — no hand-written code, specs are the system of record.

Agentic AI AI Analytics API Azure +22 skills
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Additional Resources Ltd.
9 views 2 months ago

Senior Backend Engineer (C++/Java) – Linux & APIs

Open 49d UKSenior
United Kingdom

Designs, develops, and maintains high-performance backend systems in C++ and Java on Linux, collaborating with customers and internal teams to deliver reliable software.

C++ Java Linux
up to 78K £
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CyberNorth
6 views 2 months ago

Hybrid Scala Backend Engineer - Newcastle Office

Open 49d UK
United Kingdom

CyberNorth is seeking a Backend Engineer to design and maintain large-scale cloud services for their HCM Localisation team. The role involves building scalable backend systems with a focus on performance and platform modernization in a hybrid work environment.
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Futureheads
6 views 2 months ago

Backend Developer

Open 49d UKContractSenior
United Kingdom

The Senior Backend Engineer will design, build, and scale backend services for a global art marketplace using Go, GraphQL, and GCP. The role involves leading technical delivery, managing service-to-service communication, and collaborating with frontend teams to support digital product development.

AI API Cloud Data Modeling Distributed Systems +8 skills
85K – 100K £
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AI Chopping Block, Inc.
6 views 2 months ago

Staff Backend Engineer - Python & Go | Hybrid + Equity

Open 49d UKStaff
United Kingdom

Staff Backend Engineer at PhysicsX building a platform for physics-informed ML models, owning features end-to-end from implementation to production with a focus on quality, scalability, and observability using Python and Go.

Machine Learning Observability
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Next Frontier Capital
9 views 2 months ago

Senior Lead Backend Engineer — Java/Kotlin (Fintech)

Open 49d UKLead
United Kingdom

Out of the successful launch of Chase in 2021, we’re a new team, with a new mission. We’re creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills…

Cloud Cloud Native Fintech Java JVM +1 skills
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Myn
8 views 2 months ago

Senior Java Engineer: AI-Driven Backend Modernisation

Open 49d UKSenior
United Kingdom

Senior Java Engineer in London leading AI-enabled modernisation of large-scale platforms, migrating legacy apps to microservices/APIs and leveraging AI-assisted development for code analysis, testing, and automation.

AI API Automation Java Microservices
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Myn
9 views 2 months ago

Senior Java Engineer - Scalable Backend & APIs

Open 49d UKSenior
United Kingdom

A Senior Java Engineer will design, build, and optimize Java-based backend services and APIs for a London-based tech company’s large-scale, mission-critical platforms, focusing on performance, scalability, and system reliability.

API Java
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QAD
4 views 2 months ago

Senior Scala Backend Engineer - Manufacturing API

Open 50d UKFull-timeSenior H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

QAD Redzone is seeking a Senior Scala Backend Engineer to develop and maintain API backends for frontline teams and support AI integrations. The role involves working with OpenSearch and participating in incident response within an Agile environment.

Agile AI API Java MCP +2 skills
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Affirm
10 views 2 months ago

Staff Software Engineer, Backend (Identity International)

Open 50d RemoteEurope, UKStaff H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.

The Staff Software Engineer will lead technical strategy for identity and KYC verification systems within Affirm's international expansion unit. The role involves building scalable, highly available backend services using Python or Kotlin, AWS, and Kubernetes to support global market growth.

Analytics AWS Distributed Systems Kotlin Kubernetes +3 skills
142K – 190K £
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mimica
19 views 2 months ago

Staff/Senior Backend Engineer (Node.js)

Open 80d RemoteUKFull-timeStaff
United Kingdom

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.

Agentic AI AI API Automation Distributed Systems +9 skills
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Tesco
9 views 2 months ago

Senior Java API Engineer — Hybrid Cloud Backend

Open 50d HybridUKSenior
United Kingdom

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.

API BDD GitHub JVM TDD
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Fruition Group
10 views 2 months ago

Senior Backend Developer

Open 50d UKSenior
United Kingdom

Senior Backend Developer building and scaling Python cloud microservices (FastAPI) for an Insurtech unicorn's insurance platform, owning features end-to-end and collaborating cross-functionally.

AI API CI/CD Cloud Distributed Systems +9 skills
up to 95K £
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Wise
11 views 2 months ago

Backend Engineer - Contacts Team

Open 52d HybridUK
United Kingdom

The Backend Engineer will join the Contacts team at Wise to build and maintain scalable backend services for managing customer recipients. The role involves working with Java, distributed systems, and RESTful APIs to ensure reliable and performant user experiences.

Agile API Distributed Systems Java REST +2 skills
68K – 88K £
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adaptyv Backed by Y Combinator
9 views 2 months ago

Software Engineer, Backend

Open 122d HybridEurope, UK

Backend engineer building systems to make an automated biology lab programmable—data pipelines for protein characterization data, APIs integrating lab instruments and robotics—using Python, TypeScript, and Postgres.

Agentic AI AI API Api Design Automation +6 skills
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careers.fresha.com
1 views 2 months ago

Senior Backend Engineer (London)

HybridUKSenior
United Kingdom

Senior Backend Engineer (London) About Fresha Fresha is the leading AI-powered operating system for the global beauty and wellness industry, giving businesses everything they need to run smarter, grow faster and build…

Accessibility AI Android CI/CD Distributed Systems +14 skills
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Rothera
8 views 2 months ago

Backend Quality Assurance Specialist (UK)

Open 45d HybridUKFull-time
United Kingdom

Building markets for the new trading frontier. Bringing the future into focus. Rothera is building the premier prediction market in partnership with Robinhood and Susquehanna International Group. By empowering traders…

Automation Cucumber Java JUnit Playwright +2 skills
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