363,840+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Java Developer

We’re looking for a Security focused Java Software Engineer to design and build secure, high quality backend services that power core cryptographic and security sensitive platforms. You’ll work across Java engineering, HSM integration and modern DevSecOps pipelines. Key Responsibilities< ...

Senior Backend Engineer AI & Security Integrations

Harmonic Security is seeking a Backend Engineer in Greater London, United Kingdom. This role involves designing and maintaining scalable integrations between various security systems, focusing on high-performance applications within the Java ecosystem. The ideal candidate will have 3–5+ years of softwa ...

Secure Java Engineer for Intelligence Platforms

A technology solutions provider in Gloucester is seeking a Java Engineer to work within the Security and Intelligence consulting team. The role involves designing and developing secure software services and applications. Responsibilities include building high-performance backend systems, collaborating with multi ...

Quality Engineer

Overview Gravitee is a global API management platform with a strong open source foundation. We are recruiting for a QA Engineer (manual testing) to join our team in Greater London, United Kingdom. This role focuses on improving the efficiency of our software development process and the quality of ...

Software Engineer (DV Cleared)

Due to the secure nature of this role, candidates must hold or be willing to undergo National Security Vetting (NSV) to SC and/or DV level. Individuals without clearance are still encouraged to apply and will be considered for this and other opportunities within CGI. This role is based in either Man ...

Java Backend ATA

Job Title – Java Backend ATA Location– England, United Kingdom OR Amsterdam, North Holland, Netherlands Experience –6 to 12 years Mandatory Skills - Java, AWS, Spring Boot, Rest API Services, GraphQL Client Round –Yes Type of hire –Contract (remote working and occasi ...

Senior Solution Architect

Location Hybrid 2-3 days a week in the London office or on a client site Salary £80-105k depending on experience, plus bonus & benefits Clearance Eligibility for SC Clearance An experienced Senior Solution Architect with a strong software engineering backgrou ...

Backend Software Engineer

Description Upwind is a next-generation Cloud Security Platform that leverages runtime context to identify and prioritize critical risks, providing precise insights and efficient cloud security management. Unlike traditional tools, Upwind uses runtime data proactively for risk prioritization and ...

Java Engineer Cloud FIX APIs for Trading

IG India is looking for a Java Engineer to develop and maintain FIX APIs, crucial for onboarding new clients in their Prime product area. The position requires approximately five years of Java development experience and a strong background in API development. Additional perks include a 12% flexible ben ...

Backend API Developer: Python/Node.js & Microservices

Java Script Works is seeking a Software Developer in London to develop scalable software solutions, writing clean and efficient code in languages such as Python and JavaScript. The role requires participation in code reviews, testing cycles, and API development. The position offers a competitive salary ...

QA Engineer TypeScript Test Automation & API/React

Java Script Works in Greater London is seeking a skilled Software Tester to design, execute, and document test cases. Candidates should have extensive experience in TypeScript coding for testing purposes and a strong understanding of software testing concepts. The role involves collaboration with cross ...

Software & ML Engineering Manager: Lead AI Driven Systems

A leading financial services company is looking for an Engineering Manager to lead a team in Nottingham. You will drive the integration of machine learning models into software for financial products, collaborating closely with cross-functional teams. The ideal candidate has experience in software engineering le ...

Senior Backend AI Engineer (Java | Cloud)

TwinThread is seeking a Software Engineer III to join their team in London. This role focuses on developing cloud-native microservices that leverage AI technologies to enhance customer experiences. You'll collaborate with a diverse team in a dynamic environment, contributing to solutions that prioritize secur ...

Backend Software Engineer Secure, Scalable Cloud Services

LexisNexis Risk Solutions is seeking a Software Engineer in Richmond, England. This role involves building and improving backend services that ensure performance and security while providing an opportunity to grow technical skills through hands-on experience across the software development lifecycle. J ...

Backend Engineer Crypto Trading Platform (Go)

Talos, based in London, is seeking a Software Engineer to build high-performance backend systems for crypto trading. You will work on various components including order routing and risk systems, ensuring performance and security in a fast-paced environment. Candidates should have over 3 years of software enginee ...

Contract Software Developer Web & API (C#, CMS, Azure)

Mydentist is offering a Software Developer position based in Radcliffe on a 12-month fixed-term contract. In this role, you will work closely with the internal development team to design and enhance web-based applications, particularly the corporate website. This position allows for hybrid working, wit ...

Software Developer in Test .NET, API & Test Automation

Energy One Limited is looking for a Software Developer to join their expanding team in Solihull. The role involves developing and maintaining applications, contributing to software architecture, and ensuring efficient functionality. Ideal candidates will have strong skills in C#, .NET, and SQL, along with an ...

Principal Software Consultant: Secure Tech & Client Delivery

FORT is seeking a Principal Software Engineer to develop innovative solutions and engage directly with clients. You will work on critical projects supporting the UK's national security, leading technical designs while being part of a high-performance team. The role requires strong Java engineering skil ...

Application Developer

Overview Role: Application Developer Experience: 10 years Location: Sheffield, UK Work mode: 3 days WFO weekly We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestio ...

Sr. Sec & Compliance Engineer, AWS Security Assurance Services, LLC

AWS Security Assurance Services (SAS) is hiring a Senior Security & Compliance Engineer to lead the design, deployment, and implementation of complex AWS security and compliance solutions that accomplish customer-defined business and security outcomes, solving for new levels of scale, complexity, and performance ...

Java Developer (eDV)

Software Engineer | Building Intelligent Systems That Make an Impact London, Manchester or Cheltenham 4 or 5 days a week on site Existing SC or DV Clearance is required National Security Sector Tech: JAVA/C++/Python - or Devops/Data Background An exciting opp ...

Application Architect

Join to apply for the Application Architect role at GE Vernova . Join us at GE Vernova Grid Software to be part of the team leading the digital transformation of the energy market. As the world’s energy sector moves away from fossil fuels toward renewable energy sources, industrial c ...

Senior Java Developer

Qualifications Essential Skills: Core AWS Services: Proficiency / understanding of key AWS services listed below:- S3- Athena- Glue- Lambda- DynamoDB- OpenSearch- CloudFormation- API Gateway- ECS- CloudWatch Programming and Core Services: Fluency in Kotlin/Java, NodeJS, TypeScript; S ...

Software Engineer

Software Engineer – OEM/SDK (C++ / Multi-platform) RealVNC Cambridge, England, United Kingdom RealVNC is the most reliable and secure remote access solution, built by the original creators of VNC technology. For over 25 years, we've enabled a global workforce to work wherever works. Our softwa ...

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 Lead Software Engineer Java Global Liquidity Portfolio Management Platform Engineer

Our Asset and Wealth Management division is driven by innovators like you who are driven to create technology solutions that make us work more efficiently and help our businesses grow. It’s our mission to efficiently take care of our clients’ wealth, helping them get, and remain properly invested. Across 27 c ...

Senior Front End Software Engineer Global Tech £96K

Senior Front End Software Engineer | Angular & TypeScript | Contract | London You’ll join a well‑established engineering team inside one of the world’s leading technology organisations, working on a mature, well‑structured internal platform used across their global sales and marketing for their e ...

Senior Front End Software Engineer Angular / TypeScript £96K

Senior Front End Software Engineer | Angular & TypeScript You'll join a well-established engineering team inside one of the world's leading technology organisations, working on a mature, well-structured internal platform used across their global sales and marketing for their events. This isn't a ...

Modernization Engineer Lead

We’re searching for a Modernization Engineer Lead to lead the re‑design of our in‑house applications. Working closely with the Principal Architect and providing mentorship to our developers, this role will be the main driver of continuous improvements to define and enforce standards across the team. < ...

C# API & .NET Developer React Integration

Java Script Works is looking for a Software Developer specializing in C# API to join their team in Tonbridge, Greater London. The role involves analysis, design, coding, testing, and support of applications. Candidates must have a 2:1 Computing Science degree and proficiency in C#, WebAPI, and REST. The compensa ...

Software Engineer: Global Scale, Privacy Focused Systems

Apple is seeking a Software Engineer in London to contribute to their Information Systems and Technology team. This role involves working throughout the software development lifecycle, focusing on building innovative solutions that scale with Apple's rapidly growing business. The ideal candidate will b ...

Software Engineer III — Fintech, Cloud Native

JPMorgan Chase & Co. is looking for a Software Engineer III to join their Accelerator team in Greater London. This role involves utilizing domain modeling to develop innovative products and ensuring high standards of software quality and security. The ideal candidate should have a strong foundation in ...

Software Engineer Hybrid: React UI + Backend, Docker & CI/CD

Talent Locker Ltd is seeking a Software Engineer for their Farnborough location, offering a hybrid working model with a competitive salary between £70,000 and £80,000. The role involves designing, developing, and maintaining software solutions within secure environments. Candidates should possess exper ...

Software Development Engineer, Ring

The RBKS Developer Experience (DevX) team is looking for a Software Development Engineer to help Ring and Blink device software teams deliver high quality firmware faster. You'll build cloud services and tools that streamline how firmware gets tested, making it easier for engineers to get fast, reliable feedback ...

Full Stack Engineer (React + Java) Glasgow, Scotland Fulltime Hybrid

Job Role Full Stack Engineer (React + Java) Location Glasgow, Scotland About the Job We are looking for a talented Full Stack Engineer (React + Java) with strong expertise in building scalable, secure, and high-performance web applications. The ideal ca ...

Middle QA engineer

Location: Baku, AzerbaijanWe are looking for a Middle QA Engineer (Automated Software Testing) who will take an active role in ensuring the quality of complex software systems. The candidate will participate in test design, automation, integration testing, and close interaction with devel ...

MES Technical Consultant Aerospace

Your role We are seeking a Senior Technical Services Consultant with a strong background in software development and in MES implementation, ideally within the Aerospace sector. This candidate will provide expert technical guidance, implementation leadership, and troubleshooting support for MES de ...

Software Engineer (100% Backend, Python & AWS)

Software Engineer (Backend, Python & AWS) – Travtus London (Hybrid – 3 days/week in Farringdon office) • Full-time • Salary: £60,000-£80,000 Job Summary We’re building the next generation of AI products in Multifamily real‑estate. We need a backend engineer to architect reusable ...

Java Developer

Job Overview Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to h ...

Full Stack Software Engineer

We are seeking experienced Software Engineers to enable the adoption of industry-standard Generative AI development tools across our enterprise. In this role, you'll build the infrastructure, supporting applications and tooling that enables teams across the organisation to leverage AI‑assisted deve ...

Senior Test Automation Engineer – Global Liquidity Platform

You’re ready to gain the skills and experience needed to grow within your role and advance your career — and we have the perfect software engineering opportunity for you. As a Test Automation Engineer at JPMorgan Chase within the Global Liquidity and Account Solutions team in Payments Techn ...

Software Engineer III Automation Engineer Global Liquidity Platform

You’re ready to gain the skills and experience needed to grow within your role and advance your career — and we have the perfect software engineering opportunity for you. As a Test Automation Engineer at JPMorgan Chase within the Global Liquidity and Account Solutions team in Payments Techn ...

Mission Critical Full Stack Engineer for National Security

Forwardrole is seeking a Full Stack Software Engineer to join their growing team in London focused on delivering mission-critical technology solutions for the National Security sector. The role involves designing, building, and improving secure software systems, working closely with engineers and stake ...

Software Engineer: Cloud Native DevOps & Backend

Security Wizardry Radar Page based in Farnborough, UK, is seeking a talented Software Engineer to join a dynamic team. In this role, you'll design, develop, and improve high-quality software systems, collaborating across both front-end and back-end technologies. The ideal candidate will have a Bachelor ...

Senior Android Software Engineer, Ring Application Services

Senior Android Software Engineer, Ring Application Services Job ID: | Evi Technologies Limited The Ring team is looking for a passionate and talented Senior Android Software Engineer who has experience building world‑class Android mobile apps and the ability to design, build, and mainta ...

Software Development Engineer / Software Engineer

Software Development Engineer / Software Engineer Milton Keynes, England, United Kingdom Job Openings Software Development Engineer / Software Engineer About the job Software Development Engineer / Software Engineer An exciting new opening for a Software Development Engineer ...

Senior Software Engineer (UK Remote)

Job Description Turnitin is seeking a Senior Backend Engineer with a strong focus on backend development, particularly in Java and serverless architectures, combined with solid frontend experience. This role is ideal for engineers passionate about building scalable distributed systems, data model ...

Impactful Java Engineer — On Site, Clearance Required

Frontier Resourcing is seeking a Software Engineer to join a cutting-edge team. This role focuses on developing impactful technology projects, including AI-powered tools and secure data pipelines. You will work in an agile environment that values collaboration and innovative problem-solving. Candidates ...

Software Engineer, Senior

The Senior Software Engineer will play a key role in strengthening and modernizing aPriori’s legacy product portfolio, with a focus on our best‑in‑class automation solutions. Working with a distributed team of engineers, you will design, develop, and evolve complex enterprise applications that power our ma ...

Staff Platform Engineer

Overview Join to apply for the Staff Platform Engineer role at Apex Fintech Solutions UK . Apex Fintech Solutions (AFS) powers innovation in digital wealth management, processing millions of transactions daily to simplify, automate, and facilitate access to financial markets ...

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