340,979+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Full Stack Developer: Build Secure, Scalable Cloud Apps

Provide CIC in Colchester is seeking a Full-Stack Software Developer to design and maintain secure, end-to-end solutions for critical business systems. You'll develop responsive web applications and robust back-end services, ensuring data is exchanged reliably while embedding security throughout the developme ...

IAC Engineer Savant Recruitment

Job posted by our partner Jooble. To view the full description, please click Apply Now. Skills Required IAC Tools Packer GitHub / GitHub Actions Terraform Ansible VMware vSphere CyberArk and HashiCorp Vault Scripting ...

Platform IAC Engineer: Terraform, Ansible & Vault Expert

Job posted by our partner Jooble. To view the full description, please click Apply Now. Skills Required IAC Tools Packer GitHub / GitHub Actions Terraform Ansible VMware vSphere CyberArk and HashiCorp Vault Scripting ...

Senior Mobile Engineer Apps

Job Summary We are looking for a passionate and enthusiastic Software Engineer who doesn’t want to ship features only, but also builds the engine that ships them. You will join our Platform Team to enable feature teams to move faster and safely, owning the mobile architecture, design system, and ...

SDE II: GenAI Driven Prime CX Orchestration

Amazon is seeking a Software Development Engineer II to build GenAI-powered infrastructure and collaborate with cross-disciplinary teams to innovate products for Prime experiences. You will work in an agile environment, driving the development of robust, scalable systems that enhance customer engagement. ...

Founding Software Engineer, Cybersecurity – London | Equity

Oho Group is seeking a Founding Software Engineer to join their early-stage start-up in London. This unique opportunity allows you to help shape the future of cybersecurity from day one, working closely with a world-class founding team. The ideal candidate will have over 5 years of software engineering ...

Staff Software Engineer — Lead Backend & Cloud Systems

Barclays is searching for a Staff Software Engineer in London to design, develop, and improve software solutions. You will collaborate across cross-functional teams to ensure high-quality delivery while leading technical implementations. The role requires deep expertise in backend engineering, specific ...

ML Engineer: Ad Matching at Scale

Amazon is seeking a Software Development Engineer in London to optimize ad matching for its programmatic advertisement products. This role involves working on high-scale, low-latency customer-facing advertising systems, leveraging best practices in software engineering and MLOps. You will collaborate w ...

Data Discovery Software Engineer (Hybrid)

The European Bioinformatics Institute | EMBL-EBI is seeking a dynamic Software Engineer to enhance the EBI Search project, a scalable text search engine for biological data resources. You will develop user-friendly web services, integrate biological data, and collaborate with colleagues in a supportive enviro ...

Senior Software Engineer, Margin Tech AVP

Citi is seeking a software engineer to join their global technology team in London. This role involves solving engineering challenges and building robust, high-quality solutions while working closely with product teams. The ideal candidate will have a Bachelor's degree in computer science or engineerin ...

Lead AI Engineer: Production ML & Cloud for Workday

Jentic Technology Limited is seeking a Lead AI Engineer in Belfast. This role bridges data science and software engineering to deliver scalable AI solutions within the Workday Practice. You will collaborate closely with cross-functional teams to ensure the integration and performance of AI models in productio ...

Lead Software Engineer Ruby TypeScript React

Lead Software Engineer / Developer (Ruby TypeScript React) London / Remote to £130kAre you a polyglot Software Engineer with Developer Experience, API / SDK development skills?You could be joining a highly regarded provider of serverless real-time infrastructure for the Internet that proc ...

Software Developer

Purpose We are seeking a Software Developer to join our team in Winnersh UK, supporting long-term Government projects. This role requires strong Java fundamentals and the ability to deliver clean, secure, maintainable back-end code within a structured, compliance-driven environmen ...

Backend Developer

We are seeking an experienced Senior Backend Developer with strong expertise in Java and Spring Boot to design, develop, and maintain scalable Back End systems. Ideal candidates have solid software engineering fundamentals and can effectively leverage AI-powered development tools and coding assista ...

Software Developer

We are seeking a Software Developer to join our team in Winnersh UK, supporting long-term Government projects. This role requires strong Java fundamentals and the ability to deliver clean, secure, maintainable back-end code within a structured, compliance-driven environment. You will work closely w ...

Senior Frontend Engineer Client SDK & UI Platform

A leading API platform company in London is seeking a Senior Software Engineer to enhance their UI Platform. This role involves designing scalable front-end solutions and mentoring other engineers. The ideal candidate will have 5-10 years of experience and a clear understanding of design systems and accessibilit ...

Principal Architect in Nottingham ENSEK

Implementation and Integration Specializing in SOA, microservices, and event-driven architectures. Proficient in AWS, .NET, Web API, Node.js , and AngularJS. Stakeholder You’ll be happy working with your key stakeholder groups, informing, engaging, and being available to the ...

Principal Architect in Nottingham ENSEK

Implementation and IntegrationSpecializing in SOA, microservices, and event-driven architectures. Proficient in AWS, .NET, Web API, Node.js, and AngularJS.StakeholderYou’ll be happy working with your key stakeholder groups, informing, engaging, and being available to them. ...

Senior Microservices & Cloud Architect (AWS, Node/.NET)

Implementation and IntegrationSpecializing in SOA, microservices, and event-driven architectures. Proficient in AWS, .NET, Web API, Node.js, and AngularJS.StakeholderYou’ll be happy working with your key stakeholder groups, informing, engaging, and being available to them. ...

Senior Microservices & Cloud Architect (AWS, Node/.NET)

Implementation and Integration Specializing in SOA, microservices, and event-driven architectures. Proficient in AWS, .NET, Web API, Node.js , and AngularJS. Stakeholder You’ll be happy working with your key stakeholder groups, informing, engaging, and being available to the ...

Java, Spring, SpringBoot, Spring, MVC

<p><u>Job Summary</u></p> <p>Seeking a Specialist with 5 to 7 years of experience in Java Frameworks to design develop and maintain scalable microservices using Java Spring and SpringBoot</p> <p><br /> Job Description </p> <p>Design ...

Java, Spring, SpringBoot, Spring, MVC

<p><u>Job Summary</u></p> <p>Seeking a Specialist with 5 to 7 years of experience in Java Frameworks to design develop and maintain scalable microservices using Java Spring and SpringBoot</p> <p><br /> Job Description </p> <p>Design ...

T24/Transact Migration Engineer (TAFC TAFJ)

My client a leading finance house, are looking for a T24 (Oracle & TAF) Migration Engineer to join them - for this role you will have the below: Minimum Criteria Experience in Temenos T24 / Transact, with exposure to recent releases (R21+ preferred, R24+ highly desirable) Proven experience in TAFC to TAFJ mi ...

Integration Engineer (CRM/HRIS)

Retire the ERP. Light exists to replace factory-era ERPs with software that feels alive. Our Smart Financial Platform gives modern, global companies superpowers—automated accounting, real-time reporting, and financial flows that move at the speed of the business. We build with our c ...

GNSS Engineer (Python + Java / C++): 26 01820

Primary Skills: GPS/GNSS (Proficient), Python (Expert), Java or C++ (Proficient), AI debugging tool (Knowledge), Physical testing ((Intermediate),Contract Type: W2 onlyDuration: 6 Months (Possibility of extension)Location: Irvine/ Mountain View, CA (Hybrid)Pay Range: $48-$52/hr. on W2 ...

Java Full Stack Engineer Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today an ...

Remote First Senior Backend Engineer — Java & Serverless

An educational technology company is seeking a Senior Backend Engineer in Leeds to design and implement scalable backend services primarily using Java and serverless architectures. The ideal candidate will have over 8 years of experience in backend development and a solid knowledge of frontend technologies. This ...

Senior Java Engineer – Real‑Time Payments (Hybrid)

A leading payments consultancy in London is seeking a Principal Software Engineer to design scalable, high-availability systems. You will work with Java 17+, Spring WebFlux, and Kafka in a hybrid environment, contributing to real-time transaction solutions for major global banks. Ideal candidates have strong exp ...

Senior Java Engineer Remote, Flexible Hours, Growth

Xantura Limited is seeking an experienced Senior Java Developer to join their engineering team in London. You will design, build, and evolve their cloud-based data and analytics platform, which is utilized by public sector organizations across the UK. The role demands strong Java development skills and ...

Remote First Senior Backend Engineer — Java & Serverless

An innovative technology company based in Newcastle upon Tyne is seeking a Senior Backend Engineer to lead backend service development using Java and serverless solutions. The ideal candidate will have over 8 years of backend experience, with strong proficiency in AWS technologies and frontend capabilities. You ...

Senior Java Engineer Distributed Systems, Hybrid London

A leading enterprise SaaS provider in London is seeking a Senior Java Engineer to enhance their core platform team. This permanent, full-time role offers a hybrid work schedule and responsibilities include participating in all product lifecycle phases and mentoring team members. The ideal candidate has 7+ years ...

Senior Backend Engineer — Java, Cloud, Remote‑First

A leading travel technology company is seeking a Senior Software Engineer with strong Java proficiency to join their team. This role offers a flexible remote-first working environment and the opportunity to work on innovative travel solutions. Ideal candidates will have experience in backend development and coll ...

Senior Java Engineer Real Time Payments & Reactive

Icon Solutions, located in Greater London, is looking for an experienced Software Engineer with a solid product engineering background. You will be pivotal in delivering a cutting-edge solution for real-time payment processing, working hands-on to solve complex challenges. The ideal candidate should ha ...

Principal Java Engineer: Cloud Native Architect (Hybrid)

Principal Java Engineer - Belfast (Hybrid) We're hiring a Principal Java Engineer for one of the most interesting product engineering teams in Belfast. This is a genuine principal‑level role - not a senior engineer with a better title. You'll be setting technical direction, owning architecture dec ...

Senior Java Engineer Front Office Trading Systems

Stanford Black Limited seeks experienced engineers to develop sophisticated systematic trading systems at their London office. You will own the end-to-end lifecycle of execution workflows, build high-performance systems, and collaborate with researchers to enhance trading algorithms. The ideal candidat ...

Senior Java Backend Engineer – Payments at Scale

慨正橡扯 is looking for a Senior Software Engineer to join their payment services team. This role involves translating requirements into tasks, producing test-driven features, and mentoring others while working with various payment methods securely. With a focus on innovation, candidates should have over 5 ...

Staff Backend Engineer – Java, Cloud & Tech Strategy

Capital One (Europe) plc is seeking a Staff Software Engineer - Back End in London. In this role, you'll influence the technical direction, lead multiple teams, and mentor engineers. You will work in a hybrid model, collaborating in the office three days a week. Ideal candidates have deep expertise in Java and s ...

Senior Java Automation Engineer – FX eTrading Backend

Citigroup Inc. in Greater London is seeking a Senior Automation Engineer to oversee backend automation capabilities within the FX eTrading technology stack. This role requires significant experience in test automation and a strong Java coding background. The successful candidate will drive automation strategy ...

Platform Backend Java Engineer (Hybrid, Fixed Term)

A tech consulting firm seeks a Backend Java Developer in Birmingham to build core backend services for a Data Fabric platform. Candidates should have strong experience with Java, Spring, and SQL transformations. This role involves working on data governance and performance-oriented backend solutions, ideally in ...

Lead Java Engineer – Real Time Trading Platform

A leading FinTech innovator in London is looking for a Java Developer to build their next-generation, low-latency trading platform. This role involves developing high-performance systems in Java, optimizing multithreading, and collaborating with a team of experts. The ideal candidate has a degree in Computer Sci ...

Senior Lead Backend Engineer — Java & Kotlin (Fintech)

A leading financial services firm is seeking a Senior Lead Software Engineer to join its new team focused on innovative fintech solutions. This role involves problem-solving, developing secure code, and working collaboratively in an agile environment. Ideal candidates have experience in Java and Kotlin, with a p ...

Senior Java Engineer – Azure – Finance Domain – London

Senior Java Engineer (Azure) - Finance - London Daily rate: €500 - €700 (inside IR35) Duration: 12 months Hybrid: 8 days per month Start: ASAP A banking client of mine is looking for a Senior Java Engineer with Azure and Kafka experience to join the team on a freelance basis. We are specifically loo ...

Senior Backend Java Engineer Financial Services (London)

LinuxRecruit is looking for a Senior Backend Developer specializing in Java to join their team in London, United Kingdom. The ideal candidate should have a strong background in backend development and a passion for writing impactful code. The position offers a competitive salary between £75k and £85k per year ba ...

Senior Java Engineer Low Latency FICC eTrading

Bank of America is looking for a Senior Engineer in Bromley to join the FICC Macro Rates Electronic Trading Technology team. This role focuses on developing and enhancing critical eTrading components utilized globally. Candidates should have hands-on Java experience, a strong background in multi-threaded develop ...

Lead Engineer, Risk Technology — High Performance Java

CoinDesk is seeking an experienced Java backend engineer to join the Risk Engineering team in Greater London. The ideal candidate will have over 10 years of Java experience, strong ownership skills, and the ability to thrive in dynamic environments. You will design scalable JVM services and collaborate with c ...

Senior Java Engineer (Kubernetes, Kafka, Docker) – Hybrid

Senior Java Engineer (Kubernetes, Kafka, SpringBoot) - Finance - London Daily rate: £550 - £750 (inside IR35) – Duration: 12 months – Hybrid: 8 days per month – Start: ASAP A banking client is looking for a Senior Java Engineer with Kafka and Docker skills to join the team on a freela ...

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 ...

Java Full Stack Developer | Frontend & Backend Engineer

Java Script Works, located in Greater London, is looking for a skilled Java Full Stack Developer. The ideal candidate should be proficient in Java for back-end development and experienced in front-end technologies like HTML, CSS, and JavaScript, alongside frameworks such as React or Angular. Responsibilities inc ...

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    Java Software Engineer Cloudnative Api Security Jobs in United Kingdom Job Search Guide, Trends and Insights