186,616+ Cloudnative Java React Engineer Jobs in UK — Top Companies Hiring July 2026

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Senior Java Engineer AWS, REST & Microservices (Hybrid)

Salt Digital Recruitment is seeking a Senior Java Engineer to join a hybrid team in Greater London. The role demands expertise in Java and AWS, with a daily rate of £500 to £700 depending on experience. The ideal candidate will contribute to cloud-native architecture and API development. Key responsibi ...

Senior Java Engineer — Hybrid London, Architecture Ownership

A leading fintech organization based in London is seeking a Senior Java Software Engineer to join their Treasury Engineering function. This hybrid role entails building systems to manage capital optimization while providing significant architectural ownership. Candidates should possess strong backend engineering ...

Java FinTech Microservices Engineer — Global Relocation Included

A global e-commerce company is seeking a Software Developer to contribute to high-scale products and see the real-world impact of their work. The role involves creating scalable systems, advocating best practices, and working within a performance-driven culture. Ideal candidates should have solid software develo ...

Senior Java Engineer — BSS/OSS & Microservices Mentor

A leading software company in Greater London is looking for a Senior Developer to join its Software Engineering team. The role involves technical design, development of BSS/OSS products, and mentoring junior developers. The ideal candidate will have extensive experience in Java technologies and a strong grasp of ...

Senior Java Trading Systems Engineer Low Latency

A leading financial services provider is seeking a Senior Java Developer to design and implement low-latency trading system components. This role requires deep expertise in Java, real-time systems, and distributed messaging technologies. The ideal candidate will be responsible for optimizing mission-critical tra ...

Core Java Engineer — Low Latency, Hybrid London

A leading investment management firm in London is seeking an experienced Core Java Software Engineer to build scalable software solutions for the financial sector. The successful candidate will have several years of experience in Core Java, especially in areas like low latency and multithreading. Enjoy flexible ...

Senior Java Backend Engineer Build Scalable Microservices

Alumni Ventures is looking for a Senior Java Engineer to join their team in Greater London. In this role, you will design and develop backend services using Java and Spring Boot, ensuring the reliability and scalability of their systems. The ideal candidate has a strong understanding of microservices a ...

eDV Cleared Java Software Engineer — Outside IR35

IO Associates is seeking experienced DV Cleared Java Software Engineers to join a long-term contract opportunity outside IR35. This role involves working on complex systems within the National Security sector in London, Cheltenham, or Manchester. The ideal candidates must possess active eDV clearance a ...

Senior Java Microservices Engineer Cloud Native APIs

HCLTech is seeking a Senior Engineer to take end-to-end ownership of complex distributed systems. You will design, build, and operate cloud-native microservices in Java 17/21 with Spring Boot, ensuring responsiveness through modern front-ends in Typescript. This hands-on role involves daily production ...

Latency Driven Backend Engineer (Java, Microservices, FIX)

Net2Source (N2S) is seeking a skilled candidate to join their team in Belfast. The role focuses on technical requirements primarily in the financial services domain, requiring strong expertise in Java and Spring Boot. The ideal candidate will excel in analytical and communication skills, with proven experienc ...

Software Engineer — Java/Spring, BI & Data Visualization

An established industry player is seeking a talented Software Engineer to join their innovative team. This role involves designing and developing software solutions tailored to client needs, utilizing Java and the Spring framework while adhering to Agile methodologies. You will engage with clients to gather requ ...

Real Time Payments Engineer (Java, Spring, Kafka)

A leading technology firm in Greater London is looking for an experienced Software Engineer to develop innovative solutions in the real-time payment processing sector. The ideal candidate will have expertise in Java, experience with reactive programming using the Spring framework, and be familiar with Agile meth ...

Java Backend Engineer Spring Boot | Cloud & Microservices

NextWave Consulting Ltd is seeking a Software Engineer to contribute to their Data Fabric platform. The candidate will design and enhance backend services, collaborate within an agile team, and ensure high-quality software delivery. Must have strong experience in Java and Spring Boot, agile development, and fami ...

Senior Java/Kotlin Backend Engineer – Hybrid London

A leading software development company in London is seeking a Senior Java/Kotlin Engineer to join their high-impact product engineering team. In this hybrid role, you will design scalable backend services and influence technical direction. Ideal candidates will have extensive experience with Java/Kotlin, AWS, an ...

Java Backend Engineer for Scalable Travel APIs

At SilverRail, we're on a mission to reshape the way the world travels, and we're inviting you to be part of this journey. Rail is becoming the go-to choice for short and medium‑haul travel worldwide, and we're here to help make it happen. In the face of the ongoing climate crisis, our vision is cry ...

Senior Calypso Software Engineer – Java & API Specialist

Nexus Jobs Limited is looking for a Senior Calypso Software Developer in London, United Kingdom. This role involves working with the Calypso API and Oracle DBMS to support back office processes like Settlements and collateral management. Ideal candidates should have strong Java skills and experience with CATT Au ...

Low Latency Java Backend Engineer | Spring Boot

Net2Source (N2S) is seeking an experienced Java developer in Belfast, Northern Ireland, with strong expertise in Spring Boot and microservices. The ideal candidate will have extensive experience with low-latency programming, RDBMS concepts, and CI/CD tools in a financial services environment. A bachelo ...

Java Backend Engineer Spring Boot, Microservices, AWS

Zensar Technologies is looking for a skilled Java Developer located in Burgess Hill, United Kingdom. The ideal candidate will design, develop, and maintain applications using Java 17/21 and Spring Boot, with a focus on creating resilient and scalable Microservices. This role requires strong hands-on ex ...

Java Microservices Engineer – Cloud & CI/CD (Hybrid)

Java Developer Location: Newcastle upon Tyne Hybrid Working Please note - This role will require you to work from our Newcastle, Cobalt Business Park office 3 days per week. Due to the nature of client work you will be undertaking, you will need to be willing to go throu ...

Senior Lead Backend Engineer — Java/Kotlin (Fintech)

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 and helps you realize your potential. Our team is key to our success. We’re people-first. ...

Senior Java Engineer, Equinox Platform Lead (Hybrid)

Citigroup Inc. is looking for a Senior Java Engineer in Greater London to drive innovation in the Equinox team within Equity Derivatives Tech. This role involves architecting solutions, collaborating with stakeholders, and mentoring junior engineers. You will work with technologies such as Java, REST APIs, and C ...

Senior Backend Engineer Java Microservices | Hybrid/Remote

A leading fintech company is seeking a passionate backend developer to drive innovation in their microservices architecture. With a strong focus on Java and Spring frameworks, you will work within a self-managed team in a hybrid or remote setting. The role emphasizes quality, collaboration, and career developmen ...

Senior Lead Backend Engineer — Java & Kotlin (Fintech)

A leading financial services firm in Greater London is seeking a Senior Lead Software Engineer. The successful candidate will drive innovative product solutions while prioritizing collaboration and diversity in a tech-driven environment. Responsibilities include developing scalable and secure code, problem-solvi ...

Backend Engineer (Java/Kotlin) – Scale Global Payments

Wise is seeking a Backend Engineer to join their Recurring Payin team. This full-time role focuses on developing backend services and APIs that enhance their financial products. Candidates should have strong communication skills, experience in web application development, and knowledge of Java and Spring Boot. T ...

Low Latency Quant Trading Engineer (Java) London

Deutsche Bank is seeking a Quantitative Trading Engineer in Greater London, focused on developing low-latency trading applications. The role requires excellent Java skills, experience in high performance systems, and collaboration with teams to improve software processes. Benefits include a competitive salary, h ...

Java DevOps Engineer eDV Clearance, Onsite Cheltenham

IO Associates is seeking a Java Developer with strong DevOps skills to join an established SME in the National Security space in Cheltenham. The role requires active eDV Clearance and a start date as soon as possible. You will be expected on site for 3 days each week for a duration of 6 months, with a ...

Hybrid Backend Engineer — Cloud Security (Golang/Java)

Upwind Security, Inc. in Belfast is seeking an experienced Software Engineer to join our Backend Engineering team. The role involves tackling complex engineering challenges, focusing on the lifecycle of short-life projects using cutting-edge technologies such as Golang, Java, Kubernetes, and Docker. You'll co ...

Java API Engineer Spring Boot & API Gateway

Java API Developer - Northampton Northampton, United Kingdom Posted 10 months ago Tech Stack API Spring Boot SOLID Spring Framework API Gateway OOP Java Object-Oriented Programming < ...

Senior Software Engineer (Java & Python) Scalable Systems

JPMorgan Chase & Co. in Bournemouth seeks an Experienced Software Engineer within the Global Technology team. The role involves designing and delivering technology products using Java or Python in an agile environment. Responsibilities include developing scalable systems, executing software solutions, ...

Senior Java Backend Engineer | Enterprise Platform Leader

A global financial services organisation is seeking a Senior Java Engineer to contribute to a vital enterprise platform. This hands-on role involves not only development but also shaping technical standards and collaborating with senior engineers to enhance platform quality. Ideal candidates should have strong e ...

Java Backend Engineer — Scalable Cloud APIs (Hybrid)

Jacobs is seeking a Java Developer in Glasgow to design and deliver scalable back-end services and APIs using modern Java practices. This full-time, permanent position offers a hybrid working model, emphasizing work-life balance and flexibility. The ideal candidate will have strong Java development exp ...

Java Full Stack Engineer: Cloud Native & Kubernetes

A technology consulting firm in Glasgow is seeking a passionate Full Stack Java Developer. In this role, you will design and maintain enterprise-grade applications. You will work extensively with Java, Spring Boot, and cloud technologies, helping to deliver scalable solutions. This position requires strong skill ...

Java Software Engineer (Mid) Hybrid, Cloud Native

Title Java Software Engineer (Mid-Level) Location Hybrid; 3 days a week in Manchester, 2 days remote Salary From £50,000 Who we are interactive investor is an award-winning investment platform that puts its customers in control of their financ ...

Senior Test Automation Engineer Finance (Java/Selenium)

A leading financial technology firm in London is seeking an experienced Senior Test Automation Engineer to join their team. The role involves designing and executing automated tests for trading applications and requires extensive knowledge in automated testing, Java, and Financial Services. This position offers ...

Junior Java Engineer — Flexible Backend & Digital Solutions

EY is seeking a Junior Java Engineer to join their Digital Engineering team in Belfast. The role involves designing and delivering backend solutions, coding new developments, ensuring code quality, collaborating with product teams, and managing live incidents. Applicants should have a Bachelor's degree in a rela ...

Java Engineer, Credit Risk Analytics AVP (Hybrid)

Citigroup Inc. is seeking a Software Engineer for its Credit Risk Technology team in Belfast. This role includes developing solutions to manage risk and requires skills in Java, cloud computing, and software development. The position offers a hybrid work model, competitive salary, and attractive benefi ...

Platform Engineer: Backend Java for Data Fabric

A leading consultancy firm is looking for a Backend Java Developer for a hybrid role in London. You will build core backend services for a Data Fabric platform, implementing rule engines and working with SQL parsing and distributed data systems. Ideal candidates should have strong experience in Java (17/21), Spr ...

Full Stack Developer / Java Developer / Software Engineer

Full Stack Developer – Overview Join us at Barclays as a Full Stack Developer, where you’ll support the delivery of scalable, resilient applications as part of our strategic technology transformation. You’ll play a key role in modernising platforms, contributing to risk and control objectives, an ...

Senior Lead Software Engineer Python & Java (Markets)

JPMorganChase is seeking a Lead Software Engineer to enhance their Markets Technology team. In this role, you will design and implement secure technology solutions, ensuring the highest standards of quality. You'll collaborate with various functions to deliver trusted products and enhance application performa ...

Java Sr Lead Software Engineer OMS, Equities

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Senior Lead Software Engineer at JPMorgan Chase within the Commercial and Investment Bank, you serve as a seasoned member of an agile team to design and deliver trusted marke ...

Lead Java Engineer: Low Latency Risk Screening

LSEG is seeking a Lead Software Engineer for the World Check One team in the Greater London area. This role involves leading the design and development of low-latency screening systems critical for risk intelligence and compliance screening. The ideal candidate will provide technical leadership, mentor engine ...

Real time Java Trade Processing & Reconciliation Engineer

Brevan Howard is seeking a skilled engineer for their systematic trading team to design and implement trade capture and middle office systems. The role involves building scalable trade booking and reconciliation platforms while collaborating with trading technology and finance teams. The ideal candidat ...

Java Engineer — High Performance FinTech Platform (London)

Hunter Bond is seeking a Java Software Engineer to join their innovative fintech company in London. The role involves hands-on development of a cutting-edge distributed trading platform with a focus on high-quality code and agile practices. With a strong engineering culture and commitment to modern tec ...

Senior Java Backend Engineer Identity & Access Management

Square One Resources seeks a Senior Backend Software Engineer in Basildon to join their Identity Management Services team. You will be responsible for designing and delivering secure, scalable backend platforms while acting as a technical leader to mentor developers and ensure platform resilience. The ...

Senior Java Engineer Lead Microservices & Cloud Migration

Halian | Managed Services, Recruitment Agency & Contract Staffing is seeking a candidate with strong systems development and solutions design skills for a role focused on migrating legacy applications to a new event-based architecture. The successful candidate will work within an Agile team, ensuring complian ...

Senior Java Backend Engineer: Build Scalable Microservices

EasyPark in Greater London is seeking a Senior Backend Engineer to design, build, and operate microservices that are essential to our core products. You will collaborate within a cross-functional team responsible for maintaining the backend services that support the company. The ideal candidate will ha ...

Senior Java Engineer for Scalable Pricing API

Tesco Technology in Welwyn Garden City seeks a talented Java Developer to craft innovative solutions for its Price Service API, enhancing the experience of over 28 million shoppers. This role involves designing and implementing robust systems using Java and cloud technologies, while collaborating with product ...

Senior Java Full Stack Engineer – Microservices & Cloud

Stealth iT Consulting is seeking Java Full Stack Engineers (Consultant / Senior Consultant) for permanent positions across London, Manchester, and Glasgow with flexible working options. Ideal candidates must be eligible for SC Clearance and possess 5 years of UK residency. The role involves building in ...

Senior Backend Engineer Java/Spring, SC Clearance

Coltech is seeking an experienced Software Developer / Engineer to join a secure, large-scale financial services programme in Greater London. This role involves hands-on engineering within a collaborative team, enhancing critical backend services in a distributed architecture. The ideal candidate will ...

Lead Backend Engineer (Hybrid) — Java & Spring Microservices

Scrumconnect Consulting, a leading digital consultancy in Swansea, is looking for a skilled Lead Backend Developer to oversee the design and delivery of scalable backend systems using Java and Spring Boot. The role offers a flexible hybrid working environment and the opportunity to work in a collaborative agi ...

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    Cloudnative Java React Engineer Jobs in United Kingdom Job Search Guide, Trends and Insights