407,767+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Lead Software Engineer JAVA Equities Vice President

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorgan Chase within the Equity Derivatives Group you will join our agile team creating, transforming, and supporting our trusted market-leading technol ...

Lead Java Software Engineer Markets CRM LDN

Join us to shape the future of our Markets CRM platform and drive impactful technology solutions. As a hands-on leader, you will collaborate with talented engineers and influence the direction of our Markets business. We offer an environment that values innovation, growth, and continuous learning. Your expert ...

Lead Software Engineer Java Post Trade Technology

Join us to shape the future of financial technology and make a meaningful impact on your career. You’ll collaborate with talented professionals, solve complex challenges, and help build trusted market-leading products. We value creativity, inclusion, and continuous learning, offering you the opportunity to gr ...

Lead Full Stack Software Engineer React & Java

You're ready to leverage your skills and experience to lead, mentor, and drive innovation — and we have the perfect software engineering opportunity for you. If you thrive in collaborative environments, champion continuous learning, and are excited about the evolving possibilities of AI, we'd love to hear fro ...

Senior Software Engineer (Full Stack)

Senior Software Engineer (Full Stack) Location: Farnborough, with flexibility to work from home dependent on business demands Salary: £61,500 - £78,800 The Role: As a Senior Software Engineer you will play a critical role in both the sustainment of the cu ...

Senior Kotlin/Java Backend Engineer – FinTech, Microservices

Hydrogen Group is seeking a Senior Software Engineer specializing in Kotlin and Java to join a major financial services programme in London. This role focuses on building scalable systems and microservices within a regulated environment. Candidates should have strong experience in backend development, ...

Backend Java SDE II — Scale APIs, Hybrid Work

Tesco Technology in Greater London is seeking a Software Development Engineer II to enhance our backend API systems. You'll design and develop high-performance APIs to improve customer experience. With a knowledge of Java, you'll work closely with senior engineers, participate in team planning, and learn modern ...

Senior Software Engineer Java, REST APIs & Cloud (Hybrid)

慨正橡扯 is seeking a Senior Software Engineer to provide technical implementation within the BSS/OSS space in the United Kingdom. The role involves leading technical design, ensuring scalability, and working closely with stakeholders to clarify requirements. The ideal candidate will possess hands-on exper ...

Security Solution Architect Web & API Security (EMEA/CALA)

Radware, a leader in cyber security solutions, is seeking a Cyber Security Solution Architect in London. This role focuses on designing secure architectures for modern web applications and APIs. The ideal candidate will have deep application and API security knowledge, and experience with cloud platforms. Respon ...

Mainframe Middleware Infrastructure Engineer (CICS Liberty)

Mainframe Middleware Infrastructure Engineer (CICS Liberty) Ready to make your application Please do read through the description at least once before clicking on Apply.6-12 Month Contract | London or Edinburgh | Hybrid (2-3 Days Onsite) | Excellent Day Rate We're looking for an ...

Java Developers (all levels)

Position Description Overview At CGI, we’re shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Engineer, you’ll play a pivotal role in designing and developing scalable, resilient back-e ...

Lead Software QA & API Automation Hybrid

Dheya is seeking a hands-on Software Test Team Leader to enhance testing capabilities while managing a team of testers. Located in the UK, this hybrid role focuses on continuous improvement in quality assurance across manual and automated testing processes. Responsibilities include mentoring testers, d ...

Senior Software Engineer Risk Platform & VaR Analytics

A leading trading firm in Greater London is seeking a Senior Software Engineer to join their Unified Platform - Risk team. The ideal candidate will possess strong programming skills, particularly in languages like Python or Java, and a good understanding of financial concepts like VaR. Responsibilities include d ...

Senior Software Engineer, Risk Tech VaR & Analytics

A diversified trading firm is seeking a Senior Software Engineer to join their Risk Technology team in London. The ideal candidate will design and maintain API and application platforms while collaborating with trading and risk teams. Candidates should possess skills in programming languages like Python or Java, ...

AI Solutions & DevOps Engineer — Cloud & ML Pipelines

Digiterre is seeking an AI Solutions & DevOps Engineer in London to provide real-time software and data engineering solutions. The ideal candidate has experience with AI frameworks like TensorFlow and PyTorch, proficiency in programming languages such as Python and Java, and strong skills in cloud setup and API ...

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 ...

Senior Security Engineer & Full Stack (React/Java)

A global financial services leader located in London seeks a Lead Security Engineer with expertise in delivering secure software solutions. The ideal candidate will design, code, and test applications using Java and React, resolve production issues, and ensure a secure, agile development process. Key qualificati ...

Senior Backend Engineer Java/Go Microservices & Security

A technology solutions provider is seeking a backend developer skilled in Go and Java for developing secure, scalable applications. The role involves working within a team focused on mobile security, delivering innovative features and enhancements. Candidates must have expertise in REST APIs, microservices, and ...

Senior Software Engineer job at Rockstar Games, UK

At Rockstar Games , we create world‑class entertainment experiences. By joining our team, you will contribute as Senior Software Engineer (Java) to some of the most rewarding, large‑scale creative projects in the entertainment medium. We foster an inclusive, highly motivated environment where you ca ...

Senior Java Backend Engineer Leeds Based

At Rockstar Games , we create world‑class entertainment experiences. By joining our team, you will contribute as Senior Software Engineer (Java) to some of the most rewarding, large‑scale creative projects in the entertainment medium. We foster an inclusive, highly motivated environment where you ca ...

Java Developers (all levels)

Position Description: At CGI, we’re shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Developer , you’ll play a pivotal role in designing and developing scalable, resilient back- ...

Java Developers (all levels)

Position Description: At CGI, we’re shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Developer , you’ll play a pivotal role in designing and developing scalable, resilient back- ...

Senior Software Engineer — ASP.NET/React ERP Web Apps

Java Script Works is looking for a Senior Software Engineer to join their team in Hungerford, United Kingdom. The ideal candidate has hands-on experience in web and application development using ASP.NET, JavaScript, TypeScript, React, and Web API, with ERP systems experience being a plus. The position offers a f ...

Java Fullstack Engineer in London Axiom Software Solutions Limited

Java Fullstack Engineer Location: London, United Kingdom Employment Type: Permanent, Full Time Work Mode: Hybrid Tech Stack Full-stack Security Java Job Description You will be joining the innovative Information ...

Software Developer(AI Engineer Neural Rendering & 3D Reconstruction) in Milton Keynes GAK E[...]

Software Developer (AI Engineer - Neural Rendering & 3D Reconstruction) Milton Keynes, United Kingdom Posted 10 months ago Tech Stack Artificial Intelligence REST API Spring Boot Java Experience Required Years of ...

Sr QA Engineer

Location: Remote – UK (occasional visit to Client office based in London) Clearance: Active Security Clearance (SC) to work in UK public sector Employment Type: Full‑time, Contract (3 months initially) Department: Quality Assurance / Test Automation Reports To: Technical Lea ...

Automation Test Engineer(With DevOps) SC Cleared

Automation Test Engineer(With DevOps) - SC Cleared We are looking for a highly experienced Software Automation Test Engineer in Test with a strong background in software testing, automation development, and DevOps. The ideal candidate will have hands‑on experience across a wide range of technolog ...

AppSec Lead: Threat Modeling & API Security

A global payments technology company in the UK is seeking a security expert to lead AppSec strategies, mentor teams, and drive global security initiatives. The ideal candidate will have extensive expertise in AppSec tooling and API security, as well as coding proficiency in multiple languages. The role offers co ...

Edge SRE: Global API Gateway & Security

On is seeking a Senior Site Reliability Engineer (SRE) - Edge to enhance reliability, security, and performance across its global entry points, including the Apollo GraphQL API Gateway. This hands-on role requires managing CDN architecture, ensuring high availability, and troubleshooting network issues to opt ...

API Integrations Engineer Third Party Systems

Java Script Works is seeking a 3rd Party API Integrations Engineer to support third-party API onboarding and troubleshooting. The ideal candidate should have experience in server-side development such as Node.js, Python, Java, and PHP, along with a strong background in RESTful and/or SOAP API integrations. This ...

Software Engineer

Software Engineer Are you excited to build reliable, secure software that supports global experiences and events? Do you enjoy learning from others while taking ownership of meaningful technical components? About Our Team RX Global aims to create unforgettable experiences for atten ...

Senior Full Stack Developer

Senior Software Engineer (Full Stack – Systems Ownership) Defence & National Security | UK Wide | Up to £100,000 + Package Most “full stack” roles mean building features. This one means owning systems. We’re working with a well-funded Defence AI business build ...

Senior Java Architect – Real‑Time API Platform Leader

Morgan Stanley is seeking a Senior Software Engineer to join the FID eTrading team in London. This critical position demands a highly skilled hands-on Java developer with extensive experience in real-time systems and internet-facing APIs. Responsibilities include leading architectural decisions and delivering ...

Senior Java SDET — Lead Test Automation & API Quality

A cloud services company in Greater London is seeking a Senior Software Developer in Test to enhance automation frameworks for scalable services. The ideal candidate will have at least 8 years of software testing experience and 5 years in test development with strong Java skills. Responsibilities include designi ...

Application Lead

Job Description We are seeking an experienced Application Lead with strong expertise in Java Full Stack Development to design, develop, and maintain scalable web and mobile applications. The ideal candidate should have hands‑on experience in Java Spring Boot and Angular/React deve ...

Senior Java Backend Engineer Leeds Based

At Rockstar Games, we create world‑class entertainment experiences. By joining our team, you will contribute as Senior Software Engineer (Java) to some of the most rewarding, large‑scale creative projects in the entertainment medium. We foster an inclusive, highly motivated environment where you c ...

Security Engineer

Security Engineer – API, IAM & Automation Locations: Glasgow, Greater Manchester or Northampton (Hybrid) Salary: Up to £67,000 base + bonus (DOE) The Role We’re looking for a Security Engineer to join a growing security engineering function, helping to design and build s ...

Lead Software Engineer C# .NET API on AWS | Remote

A leading SaaS tech company in Nottingham is looking for a Lead Software Engineer / Developer (C# .Net API AWS) to join their Agile team. This role offers a salary up to £80k plus benefits, including 25 days holiday and health insurance. You will design payment applications and mentor other engineers, all while ...

Cloud Native Software Engineer API first, Go/TS, Remote

Finova, located in Manchester, is looking for cloud first developers to join their agile team. As a cloud first developer, you will build scalable B2B workflow solutions and develop cloud-native solutions with an API first approach. This role emphasizes collaboration and requires good knowledge of TypeScript and ...

QA Automation Tester

About the Role We are seeking a passionate QA Automation Engineer to drive quality across modern cloud-native applications. If you enjoy building robust automation frameworks, working with AWS-based systems, and ensuring high-performance, scalable solutions, we'd love to hear from you. </p ...

Java Software Engineer: Build scalable, high quality apps

We're looking for a detail-oriented and analytical Software Engineer (Java) to join our growing development team in Sheffield, United Kingdom. In this role, you will design, develop, and maintain robust Java applications while adhering to best practices in software engineering. You will work collaboratively w ...

Software Engineers (DV Security Clearance)

Position Description: Elevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating directly with our clients, we ...

Software Engineers (DV Security Clearance)

Position Description: Elevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating directly with our clients, we ...

Java / Cloud Technical Lead London, Wembley

Job Title: Java / Cloud Technical Lead - London, WembleySalary: Paying up to £80,000 per annumLocation: Wembley London - 5 days on-siteOur client, a well-established and diversified multinational organisation, is seeking a Java / Cloud Technical Lead to join their team.Skills< ...

Senior Software Engineer, Expense Management Platform

hackajob is seeking a Senior Software Engineer to join our Business Expense Management team in Greater London. In this role, you will design and maintain scalable services and build public-facing APIs to enhance our platform. You will collaborate with various teams to create impactful solutions, while advocat ...

Senior Java Developer

Senior Java Software Engineer - Spring Boot / Cloud / DevOps At a Glance Senior Java engineering role in a fast-moving, Agile delivery environment Spring Boot, AWS / OpenShift, Kubernetes - cloud-native and DevOps-focused Hybrid worki ...

Security Test Engineer: Build Robust Software & Firmware Security

Security Test Engineer Location: 4 days per wk in Glasgow / 1 day from home Salary: Circa 75k-80k + Benefits Security Test Engineer required by a Global Engineering Company! You’ll be responsible for ensuring the security robustness of software and firmware components for ...

SaaS API Integrations Engineer

This is a job posted by our partner Jooble Below is a snippet of the job description. To read the full text, please click on the Apply Now link. Overview Requirements Ideally within a SaaS or cloud-based environment Experience designing and building API-drive ...

Backend / API Engineer, Payouts

Note: if you are an intern, new grad, or staff applicant, please do not apply using this link and visit our for those specific postings. ## Who we areAbout StripeStripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterpri ...

AI Interfaces & API Engineer

Anthropic is looking for a skilled software engineer to join the Claude.AI product team. This role involves building innovative APIs and interfaces that facilitate interactions with advanced AI models. Collaborate with a talented team to redefine human-machine collaboration and work on cutting-edge AI product ...

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