357,901+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Senior Java Engineer: Scale the Price API in the Cloud

A leading UK supermarket is seeking a skilled software engineer to join the Price Service team, working on a critical HTTP API. The role involves designing and implementing scalable systems using Java 8+, with an emphasis on cloud platforms and Agile methodologies. The ideal candidate will possess strong problem ...

AI Driven Backend Engineer (Java/Kotlin) for API Mock SaaS

WireMock is looking for an experienced Java/Kotlin developer based in London to join their dynamic team. The role involves designing and supporting backend features for a commercial SaaS product, along with maintaining cloud infrastructure. Candidates should have at least 6 years of professional software develop ...

Software Engineer (DV Security Clearance)

Software Engineer (DV Security Clearance) Position DescriptionElevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top 100 employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating ...

Python Software Engineer Cyber Security

Python Software Engineer / Developer London / WFH to £80k Do you have strong backend Python software development experience? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across ...

Senior Software Engineer Proactive Security

A leading food delivery service, based in London, is seeking a Senior Software Engineer in Proactive Security to enhance its infrastructure security. The role involves developing core security products and collaborating across teams to ensure a resilient delivery network. Ideal candidates should have a strong ba ...

Senior Software Engineer, Proactive Security

Who We Are Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions of customers ...

Security Software Engineer — Remote & Flexible

Code Invokers in Ilford is looking for a Software Engineer, Security to ensure the security of their software products. This role involves designing and implementing security features, conducting audits, and collaborating with cross-functional teams to integrate security practices into development. The ...

AI Native Security Software Engineer

Snyk is seeking a Software Engineer to shape how organizations build secure software. You'll collaborate with a forward-thinking team to embed security into every part of the development lifecycle. With at least 3 years of experience, you will be challenged to develop high-performance services while en ...

Senior Software Engineer (Security SME)

Location: Manchester, Hybrid (1 - 2 days a week in the office, negotiable) Salary: £80,000 - £100,000 (potentially some wiggle room for the right person) We're working with a client we know extremely well, a fast-scaling communications compliance platform processing hundreds ...

PKI & Identity Security Software Engineer

A leading recruitment agency is seeking a talented software engineer to develop high-volume PKI solutions in an agile environment. The ideal candidate will have experience with Go, Java, C++, or Python, and possess knowledge of full-stack applications, REST APIs, and DevOps principles. Strong communication skill ...

Frontier AI Security Software Engineer

The AI Security Institute is hiring Software Engineers to join their Core Technology Team in Greater London. The role involves innovative software development on critical research projects and mentorship opportunities from world-class experts in AI. Candidates will contribute to significant projects th ...

Senior Software Engineer, Proactive Security

Who We Are Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions of customers ...

Senior Security Software Research Engineer

Job Title Senior Security Software Research Engineer Job Location Picadilly circus, London Job Description L3Harris has an immediate opening for a Sr Security Software Research Engineer with our security group, Trenchant. Our teams are comprised of elite securi ...

Software Engineer, AI Security Platform

Clutch Canada is seeking a Software Engineer to join their team in Greater London. The successful candidate will be responsible for creating high-performance, reliable, and scalable software solutions that enhance security in application development. This role requires at least 3 years of experience an ...

Python Software Engineer Cyber Security

Python Software Engineer / Developer London / WFH to £80kDo you have strong backend Python software development experience?You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from a ...

Contract Software Test Engineer Security

Contract Software Test Engineer - SecurityLocation: Leeds, UK (Hybrid)Engagement: 3 Months - Outside IR35 ContractWRK digital are shortlisting for an experienced Contract Security Test Engineer on an Outside IR35 consultancy basis to take end‑to‑end ownership of the securit ...

Python Software Engineer Cyber Security

Python Software Engineer / Developer London / WFH to £80k Do you have strong backend Python software development experience? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from ...

National Security Cyber Software Engineer

A leading digital intelligence firm in Gloucester is seeking an Operational Cyber Software Engineer. This role focuses on developing secure, reliable software solutions for critical cybersecurity needs. Candidates should be eager to learn and have a foundational understanding of programming languages like C++, J ...

Product Security & Software Development Engineer

Responsibilities / Tasks Implementation of IEC 62443-4-1 within existing software processes.Performing gap analyses and drawing up improvement plans.Integrating secure-by-design principles into the SDLC (Software Development Life Cycle). ...

Java Engineer

Join to apply for the Java Engineer role at American Express Join to apply for the Java Engineer role at American Express American Express’ Global Commercial Services (GCS) offers a wide range of card and payment programs, e ...

Java Engineer

We’re partnered with a scaling FinTech who are looking for a Full Stack Engineer to join their team as they continue to grow. This role is within a critical business division who are responsible for a modernisation programme, and you’ll have the opportunity to work on large-scale platforms, leveraging AI-a ...

Java Engineer

Job Description We’re looking for Java developers at all levels, ranging from Junior (2+ years’ experience) to Principal engineers and Architects, to join us as we kick off new Java projects with tier-1 investment banks. You’ll work on mission-critical systems bringing the best modern softw ...

Java Engineer

Leeds, West Yorkshire, United Kingdom (Hybrid) Job Summary Join our US Product Development team, where we build innovative retail systems for Sportsbooks and hotel check‑in kiosks across the US. As a backend developer, you’ll help design and deliver high‑quality, high‑performance microser ...

Java Engineer

Join our US Product Development team, where we build innovative retail systems for Sportsbooks and hotel check-in kiosks across the US. As a backend developer, you’ll help design and deliver high-quality, high-performance microservices that power customer-facing features. We value engineers who take pride in ...

Java Engineer

Enso Recruitment is proud to be working with a global, technology-driven financial services organisation who are expanding their engineering capability within a highly critical connectivity platform. They are now seeking an experienced Java Engineer to join a specialist team ...

Java Engineer

Software Development Engineer II - Java Job Description As an SDE2 at Tesco, you are a mid-level individual contributor whose impact reaches across your team. You provide technical leadership for medium to large features, participate in their design, and take accountability for delivery. ...

Java Engineer

Java Engineer Salary to £50k + Company Options Scheme Fully remote working available for the right candidate (hybrid working between your home, their offices (London Vauxhall) & client sites would be preferred but isnt essential). NB: Please only apply if you have reside ...

Java Engineer

Overview This is a free 16 week training course followed by a role with one of our clients. Title Mid-Level Java Engineer Job location Birmingham, UK Description Step into a role as a Mid-Level Java Engineer with one of our clients through the Mid-Le ...

Java Engineer

About the role We have an exciting opportunity for a Java Engineer to join the elementsuite team, with a passion for clean code, elegant architecture, and efficient delivery. This is a hands‑on role where you'll be developing the elementsuite platform and its foundational services - all mission‑c ...

Java Engineer

Software Development Engineer II - Java Job Description As an SDE2 at Tesco, you are a mid-level individual contributor whose impact reaches across your team. You provide technical leadership for medium to large features, participate in their design, and take accountability for delivery ...

Java Engineer

Java Engineer Salary to £50k + Company Options Scheme Fully remote working available for the right candidate (hybrid working between your home, their offices (London Vauxhall) & client sites would be preferred but isnt essential). NB: Please only apply if you have resided in the UK for the past 5 years and are p ...

Enterprise API Solutions Engineer: Drive API Strategy

Requirements If you are passionate about APIs, software development, and solving complex customer challenges, we would love to have you on the team! ,We recognize that every candidate brings a unique set of experiences and strengths. The following requirements are meant as a guidelin ...

Java Software Engineer — Spring, Cloud, Microservices & DevOps

A tech consulting firm based in the United Kingdom is seeking a hands-on technical expert to deliver projects in a DevOps manner. Candidates should possess strong skills in Java, Spring framework, and experience with containerization tools like Docker or Kubernetes. A passion for quality code and security cleara ...

Senior Java Engineer Remote/Hybrid, Space Software

Bright Ascension Ltd in the United Kingdom seeks an experienced Senior Java Engineer to contribute to product development within a hybrid working environment. This role involves designing and developing new software products while adhering to best coding practices. The ideal candidate has at least 5 years' exper ...

Graduate Software Engineer – Java Training & Global Roles

Kickstart your career with mthree as a Junior Software Developer in the UK. As part of the Alumni Graduate Programme, you will receive tailored training, ongoing support, and opportunities with leading employers. You'll work in dynamic teams to build applications, underpinned by a solid foundation in software ...

Java/Kotlin Software Engineer – AVP (Developer Enablement)

We’re looking for an enthusiastic & talented server side engineer, to join one our high-impact teams inside Citi’s CTO organisation. You’ll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a startu ...

Senior Full Stack Software Engineer (Java / React )

Senior Full Stack Software Engineer (Java / React) Would you like to help create products to support the sharing of scientific knowledge? Do you enjoy collaborating to solve complex technical problems? About the team: Our dynamic Agi ...

Backend Software Engineer Java SQL TCP/IP

1 week ago Be among the first 25 applicants This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Recruiting Software Engineer ...

Senior Software Engineer – Autonomous Marine Systems (Java)

Morson Human Resources Limited is seeking a Senior Software Engineer to join TKMS ATLAS UK in Winfrith, Dorset. This role involves working on the development of marine-based autonomous systems, requiring on-site work 3–4 days per week. The ideal candidate will have a degree in software engineering, pro ...

Lead Software Engineer (Java, Spring Boot, Microservices)

Lead Software Engineer (Java, Spring Boot, Microservices) Join to apply for the Lead Software Engineer (Java, Spring Boot, Microservices) role at TPXimpact | B Corp Lead Software Engineer (Java, Spring Boot, Microservices) 1 day ago Be among the fir ...

Backend Software Engineer Java Kotlin AWS in London client server

Introduction In this role, you will have the autonomy to choose the right tool for the job and introduce emerging technologies. Technologies: API AWS Backend Java JavaScript Kotlin PostgreSQL Python ...

Mainframe Middleware Infrastructure Engineer (CICS Liberty)

Mainframe Middleware Infrastructure Engineer (CICS Liberty)Read on to fully understand what this job requires in terms of skills and experience If you are a good match, make an application.6-12 Month Contract | London or Edinburgh | Hybrid (2-3 Days Onsite) | Excellent Day RateWe're looking for an ex ...

Full Stack Engineer: Angular UI & High Performance APIs

Java Script Works in London is seeking a Full Stack Software Engineer to contribute to rendering performance and API response times. You will design and build reusable UI components using Angular and TypeScript, while helping to maintain high-performance backend systems. This full-time role offers a co ...

Senior Backend Engineer — TypeScript & Python

Java Script Works is looking for a Senior Software Engineer (Backend) based in London, UK. The role focuses on managing the backend with technologies like TypeScript, Express, and Python while working with Neo4j for database management. A competitive salary range of £100K - £140K is offered for this full-time ...

Space Domain SDA Software Engineer Java Microservices

A leading technology group in the UK is seeking a highly motivated Software Engineer to support activities in Space Domain Awareness. The role focuses on developing Java micro-services and RESTful APIs while working within an agile environment. Candidates should possess experience in automated testing and strong ...

Lead Software Engineer Java JPM Personal Investing

Job Responsibilities Work with the Product team to understand user's needs and follow an Agile SDLC to develop and deliver product features. Our stack is Java/Springboot with a bit of Kotlin, DynamoDB, Aurora/MySQL and AWS. Participate with the rest of the team in the process of d ...

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 ...

VP Risk Software Engineer (Java/Scala, Spark)

WorksHub is seeking a full-time Software Engineer (Vice President) in Birmingham. This role focuses on managing multiple stakeholders while utilizing a diverse tech stack including Scala, Java, Python, and Spark. Candidates should be comfortable with TDD and build tools such as Maven. Enjoy a competiti ...

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