902,471+ Senior Java Back End Developer Jobs in UK — Top Companies Hiring June 2026

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Senior Java Back End Developer

Senior Software Engineer - Node.js Confidential Client * Remote (UK) * Full-time About the Client This role sits with a well-established product engineering organisation headquartered in Northern Ireland, with a reputation built on delivering composable, cloud-native digital commerce platforms for some of the wo ...

Senior Back End Developer Java

We’re a sports media network, focused on building and nurturing a portfolio of highly engaged and connected communities of sports fans and bettors to create value for our partners. We empower sports fans with real-time intelligence, premium independent content, and unique tools so they can compete ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system a ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system a ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will co ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will co ...

Java Back End Developer

Role: Backend Developer (Core Java) Please ensure you read the below overview and requirements for this employment opportunity completely.We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will co ...

Java Back End Developer

Role: Backend Developer (Core Java) We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will co ...

Lead Back End Developer Java

London, United Kingdom | Posted on 17/09/2025 Segmentify is an e-commerce personalization platform helping online retailers to optimise their conversion rates by enabling them to deliver a unique shopping experience for each visitor. Segmentify tracks each individual visitor’s behaviour ...

JAVA Microservices Back end Developer

Job Description Is this your next job Read the full description below to find out, and do not hesitate to make an application.We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterpr ...

JAVA Microservices Back end Developer

We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterprise environment. Location: Burgess Hill, UK (On-site 3 days per week is mandatory) Empl ...

JAVA Microservices Back end Developer

We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterprise environment. Location: Burgess Hill, UK (On-site 3 days per week is mandatory) Employm ...

JAVA Microservices Back end Developer

We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterprise environment. Location: Burgess Hill, UK (On-site 3 days per week is mandatory) Empl ...

JAVA Microservices Back end Developer

We are seeking a talented Java Backend Engineer to join a dynamic team. This role is focused on building high-performance, scalable software within a distributed enterprise environment. Location: Burgess Hill, UK (On-site 3 days per week is mandatory) Employment Type: Permanent / FTE The Role You will contribute ...

Senior Back End Developer Java and AWS

Use your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchersLondon with hybrid working; to £90k DoE + options and benefitsThis company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, ...

Senior Back End Developer Java and AWS

Use your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchers London with hybrid working; to 90k DoE + options and benefits This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and re ...

Senior Back End Developer Java and AWS

This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, and enable online characterisation and measurements from scan images. This will feed into a better understanding of disease processes and ultimately better treatments for patien ...

Senior Back End Developer Java and AWS

This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, and enable online characterisation and measurements from scan images. This will feed into a better understanding of disease processes and ultimately better treatments for patien ...

Back end Developer (Sviluppatore Java API)

Role: Backend Developer (Core Java)We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will collaborate clo ...

Back End Developer Java Spring Boot

Backend Developer - Java, Spring Boot - Start Up We are hiring a talented Mid Level Backend Developer to out growing team in London. Hybrid working 1-2 days in office and rest remote 3-6yrs hands on back end development using Java and Spring Boot Prior experience working in ...

Back end Developer (Sviluppatore Java API)

Role: Backend Developer (Core Java)We are seeking an experienced Backend Developer with strong expertise in Core Java to build scalable, high-performance APIs and work effectively within large, complex codebases. The ideal candidate will have a solid foundation in system architecture and will collaborate clo ...

Senior Back End Developer

2 days p/month in Maidenhead (Remote otherwise) Quarterly travel to Barcelona My Product Path is partnered with an established leader in life safety and communication technology, hiring a Platform Engineer to help build and scale cloud-based platforms that support safety‑critical co ...

Senior Back End Developer

Senior Backend Developer (.NET | AI-First SaaS Platform)Compensation: Competitive, based on location and experience Location: UK (Hybrid – Office & Remote)Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage h ...

Senior Back End Developer

Senior Software Developer (Backend / .NET / Azure) Overview Senior Software Developer needed for hands‑on backend development, working on data‑driven systems, APIs, and cloud services. The role focuses on building new services, re‑writing their whole back end system, and designing scala ...

Senior Back End Developer

Overview Senior Back-End Developer | Join an exciting SaaS Innovator We’ve partnered with an award-winning SaaS company that’s transforming their industry through tech — and they’re growing fast. They’re on the hunt for experienced Senior Back-End Developers who are excited to make a real ...

Senior Back End Developer

Robert Half have partnered with a high growth sports manufacturing organisation based in London who are looking to engage an experienced Senior Backend Engineer to support the evolution of a live, transaction‑driven platform as it scales internationally.This is an initial 6‑month, Inside IR35 cont ...

Senior Back End Developer

Senior Back End Developer About ZeroLight ZeroLight is a leading visualisation platform dedicated to helping brands build stunning digital customer experiences that captivate and convert. Whether it's creating world‑beating product configurators, producing photoreal CGI content, o ...

Back End Developer (Senior)

Salary £80k to £120k plus Quarterly bonuses Role Description We are seeking a talented Senior Backend Engineer to join our London-based team full-time. You will play a key role in building and scaling the core infrastructure of our AI platform, owning critical backend systems, and ...

Senior Back End Developer

Robert Half have partnered with a high growth sports manufacturing organisation based in London who are looking to engage an experienced Senior Backend Engineer to support the evolution of a live, transaction‑driven platform as it scales internationally.This is an initial 6‑month, Inside IR35 cont ...

Senior Back End Developer Java and AWS (27629)

This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, and enable online characterisation and measurements from scan images. This will feed into a better understanding of disease processes and ultimately better treatments for pat ...

Back end Developer (Java &Spring Boot/Python)

Salary: £55k to £65k London office. Hybrid role: three days a week on-site in London. Requirements Play a leading role in migrating and rebuilding core architecture in Java Spring Boot to align with a composable, cloud‑native landscape. Design and optimize technical connec ...

Back end Developer (Java &Spring Boot/Python)

Salary: £55k to £65K Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis.This is a hybrid role, requiring three days a week on-site in our London office.</st ...

Back end Developer (Java & Spring Boot / Python)

Requirements Java Spring Boot: Confirmed level proficiency for the architectural rebuild ,Database: PostgreSQL ,Cache : Redis / Valkey ,Architecture: REST Architecture and Event-Driven architecture ,Cloud & Infrastructure: Google Cloud Platform GCP and Kube ...

Back end Developer (Java &Spring Boot/Python)

Role Overview Salary: £55k to £65k. Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis. This is a hybrid role, requiring three days a week on-site in our London office. R ...

Back end Developer (Java &Spring Boot/Python)

Overview Salary: £55k to £65K. Methods is recruiting for a permanent Back‑end Developer specialising in Java Spring Boot and Python to join our private Sector Business unit. This is a hybrid role requiring three days a week on-site in our London office. Responsibilities <ul ...

Back end Developer (Java &Spring Boot/Python)

Salary: £55k to £65K Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis.This is a hybrid role, requiring three days a week on-site in our London office.</st ...

Back end Developer (Java &Spring Boot/Python)

Salary: £55k to £65K Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis.This is a hybrid role, requiring three days a week on-site in our London office.Requireme ...

Back end Developer (Java &Spring Boot/Python)

Salary: £55k to £65K Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis.This is a hybrid role, requiring three days a week on-site in our London office.Requireme ...

Back End Developer

Backend Engineer | Hybrid (3 days a week in London) | Up to £90,000 + Meaningful Equity | Python + Flask We’re currently working with a fast-growing, technology-driven startup that’s on a mission to transform personalised consumer experiences through innovation and scale. T ...

Back End Developer

Direct message the job poster from Leo Technology Founder & Director of Leo Technology #JoinThePride Job Title: Backend Developer - PHP, Laravel Working Set-Up: Remote Contract - Please note candidates must be UK based Interv ...

Back End Developer

Overview This is a full-time remote role for a Back End Developer. The Back End Developer will be responsible for developing server-side logic, maintaining and optimising databases, and ensuring high performance and responsiveness to requests from the front-end. They will work closely with front-end ...

Back End Developer

We are seeking an experienced Senior Backend Developer with a proven background in building high-volume, scalable services. Job details 6-month initial contract with a high potential for extension. Fully remote opportunity within the UK, with any ad-hoc travel expenses cov ...

Back End Developer

Contract Duration: 6 months with potential for extension Location: Remote - UK Job Description: This is a generalist mid-level backend position within the Ads Organization. Ads are the fuel that powers the client's mission. Technologies used on the team inclu ...

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    Senior Java Back End Developer Jobs in United Kingdom Job Search Guide, Trends and Insights