363,797+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Software Engineer (Java Backend)

About ARQ ARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our p ...

Senior Java Software Engineer

Overview Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed; finance isn’t what this firm does, tech is. Our client is an innovative tech-driven trading company (Equities and ETFs) with a pioneering big data techn ...

Senior Software Engineer (Java)

About ARQ ARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our p ...

Developer API & Card Security Engineer

A VC-backed fintech company in London seeks a Product Engineer to build secure APIs for critical payment infrastructure. This role offers massive ownership within a lean team, directly influencing product direction. The ideal candidate is technically proficient in systems and network design, operates with a proa ...

Security Engineer: API, IAM & Automation

A leading technology recruitment firm is seeking a Security Engineer in the UK to design secure systems focusing on API security. The ideal candidate will have experience in DevSecOps or Security Engineering with strong skills in Python, Bash, IAM, and cloud solutions like AWS or Azure. This role offers up to £6 ...

API Security Architect

We are looking for an API Security Architect to define, design, and oversee the implementation of enterprise‑grade API security architecture. The role ensures APIs are built securely, follow best‑practice standards, and align with organisational security and compliance requirements. Key Responsibi ...

Full Stack Software Engineer / Java Software Engineer

We have opportunities for Software Engineers at every level within a team across our Manchester, Gloucester. Due to the interesting work we do and the sector this team is working in, we require all candidates to currently hold SC clearance. Responsibilities Design an ...

Senior Java Developer Defence Systems (SC Eligible)

A global engineering consultancy is seeking a Senior Software Engineer to develop Java-based applications for advanced submarine systems. The role requires strong expertise in Java, REST API development, and Agile practices, with the opportunity to support vital naval operations. This position allows hybrid work ...

Senior Java Engineer Scalable Cloud API & Microservices

Tesco - Corporate in Welwyn Garden City is looking for a skilled Java Developer to design and implement critical API systems. You will work on robust cloud infrastructure that reaches millions of shoppers weekly. Seize the opportunity to impact our technology stack, including Java, Kubernetes, and Azur ...

Senior Principal Java Engineer — Platform & API Gateways

Anaplan is seeking a Senior Principal Software Engineer to join our team in Manchester, UK. You will lead the design and delivery of platform capabilities that power Anaplan’s enterprise-scale solutions. Ideal candidates will have a strong background in software engineering and expertise in backend lan ...

Senior Java Backend Engineer – Pricing API (London)

Salt is seeking a Senior Java Software Engineer in Greater London for a 6-month stint focused on designing and scaling a high-performance pricing API. This role involves tackling engineering challenges and contributing to a solution that serves over 28 million UK customers weekly. The ideal candidate w ...

Java API Engineer Low Latency FIX & Cloud

Requirements Experience with developing external APIs ,A continuous improvement mentality, experience with coding using AI ,Identifies development risks and builds mitigations ,Around 5 years of Java development experience ,Strong concurrent/multithreaded p ...

Automation Test Engineer – Hybrid (Java, API & Salesforce)

TDS is seeking an Automation Test Engineer to join our Technology team in Hemel Hempstead. This full-time, permanent position offers a salary of £60,000 per annum and follows a hybrid working policy, requiring a minimum of 2 days in the office each week. Key responsibilities include test case design, a ...

Java Backend Engineer II — Scalable API Innovation

Tesco is seeking a Software Development Engineer II to join its Lists and Substitutions Team in Greater London. In this role, you will develop high-performance backend APIs that enhance the shopping experience for millions of customers. Responsibilities include coding in Java, participating in planning sessions, ...

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 API Engineer – Pricing Platform (Hybrid)

A leading retail technology firm in Greater London is seeking a skilled Java Developer to join their Price Service team. The role involves designing robust, scalable APIs used across all of Tesco’s channels, serving millions of shoppers weekly. Key responsibilities include implementing systems, translating produ ...

Java API RESTful Web Services

<u>Job Description</u><br /> <p><i>Primary Focus</i></p> <p> <i>Backend first Java engineering role</i></p> <p> <i>Full stack experience is beneficial, but backend capability is essential ...

Dev Productivity Engineer — Accelerate Engineering Velocity

Palantir, located in London, is hiring a Software Engineer to enhance developer productivity. This role involves building software at scale to support various engineering activities and improve workflows. Candidates should have over 2 years of software engineering experience and be proficient in languages like J ...

Java Software Engineer : Java : Quant Trading : £150k

Overview We’re working with a leading, technology‑driven trading organisation with a global presence, seeking a Senior Software Engineer to join their innovative platform engineering team. This is an exceptional opportunity to work on cutting‑edge systems that process data at scale, powering decis ...

Software Engineer, Security

As a Software Engineer, Security at Code Invokers, you will play a key role in ensuring the security of our software products. You will work closely with our development teams to identify and mitigate potential security risks and implement robust security measures. This is an exciting opportunity t ...

Software Engineer, Security

Who We Are Anza is a Solana R&D lab pushing the boundaries of blockchain performance and scalability. Anza was founded by experienced executives and core engineers solving the toughest problems in Web3. Crypto ecosystems rely on robust protocols, and we believe those are best built out in the ope ...

Software Security Engineer

Overview Would you like to be part of a group of specialist engineers helping to deliver some of the world's most sophisticated defence systems? We are currently recruiting for a software security expert, to work across a range of our products! What we can offer you Comp ...

Software Security Engineer

The Opportunity Join a team where you can explore the full product range while working with innovative technologies and approaches! This role can also be based from Hertfordshire. Hybrid role, with the expectation that it will be 3 to 5 days ons ...

Software Security Engineer

Software Security Engineer - Moorgate office basedJoin Fortinet, a global cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard people, devi ...

Software Engineer – Security

Fantastic opportunity for talented programmers at one of the world’s top algorithmic trading firms in their London office. They make the world’s markets more financially efficient using smart algorithms. To get the job done, they hire some of the smartest computer scientists in the world to develop both their ...

Security Architect (API / Product Security)

Security Architect (API / Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background i ...

Security Architect (API / Product Security)

Security Architect (API / Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background i ...

Security Architect (API / Product Security)

Security Architect (API / Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background i ...

Security Architect (API / Product Security)

Security Architect (API / Product Security) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background i ...

Backend Software Engineer

Software Engineer – Java 21, SpringbootUp to £550 per day (Inside IR35)London / Remote6 monthsMy client is an instantly recognisable consultancy who require a strong Backend Software Engineer with deep expertise in Java (Spring Boot) to join a large-scale, business‑critical microservi ...

Senior Software Engineer Fusion Automation API

**Job Requisition ID #** 26WD96771 Senior Software Engineer — Fusion Automation API **Location: Munich, Parsberg, Birmingham, or remote in Germany or UK** We are on a multi-year mission to revolutionize the Design to Manufacture industry with Autodesk Fusion and are excited to ...

Senior Software Engineer C#, .Net, API

Overview Senior Software Engineer – Full Stack | Robotics | Product-Led Scale-Up | Bristol (Hybrid) We’re working with a fast-growing scale-up at the intersection of robotics, advanced manufacturing, and automation, and they’re now looking for a Senior Software Engineer to help take their pl ...

Senior Software Engineer Fusion Automation API

Job Requisition ID #26WD96771Senior SoftwareEngineer—Fusion Automation APILocation: Munich, Parsberg, Birmingham, or remote in Germany or UKWe are on a multi-year mission to revolutionize the Design to Manufacture industry with Autodesk Fusion and are excited to offer an imp ...

Senior Software Engineer Fusion Automation API

**Job Requisition ID #** 26WD96771 Senior Software Engineer — Fusion Automation API **Location: Munich, Parsberg, Birmingham, or remote in Germany or UK** We are on a multi-year mission to revolutionize the Design to Manufacture industry with Autodesk Fusion and are excited to ...

Senior Software Engineer Fusion Automation API

Job Requisition ID #26WD96771Senior SoftwareEngineer—Fusion Automation APILocation: Munich, Parsberg, Birmingham, or remote in Germany or UKWe are on a multi-year mission to revolutionize the Design to Manufacture industry with Autodesk Fusion and are excited to offer an imp ...

Lead Software Engineer Python API Fintech

Lead Software Engineer / Developer London / WFH to £120kAre you a skilled a backend focused Python technologist with team leadership experience?You could be progressing your career at a well-funded and profitable FinTech start-up.As a Lead Software Engineer you'll head up a small, ...

Remote Test Engineer Automation, API & Security

A leading digital recruitment firm in the UK is seeking a Digital Recruitment Specialist for a 6-month contract offering £400 to £425 per day. This fully remote position requires strong skills in Ruby, Selenium, and various testing methodologies for government digital services. The successful candidate will work ...

API & Cloud Quality Engineer Security & Performance

An established industry player is looking for a dedicated QA Engineer to enhance the quality and security of their APIs and cloud infrastructure. This role involves conducting both manual and automated tests to ensure functionality, performance, and security, while collaborating closely with development teams to ...

SDET Engineer Automation, API & Security Testing

Scrumconnect Consulting is hiring a Software Development Engineer in Test (SDET) to join their team in Swansea. The role involves designing and maintaining automated test frameworks, ensuring quality in high-volume digital services. Ideal candidates will have a strong coding background in Java, JavaScr ...

Senior Frontend Engineer SDK & Security API

Requirements This role is ideal for someone who thrives in developer experience, SDK design, and security-focused frontend engineering ,Proven of experience in frontend development, with deep expertise in React, TypeScript, and modern JavaScript ,Proven experience designing ...

Java Software Engineer (Energy Sector)

Get AI-powered advice on this job and more exclusive features. This range is provided by Dexter Talent. 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 Dexter Talent Do ...

Software Engineer (Python and Java)

**Description** **Software Engineer** **Programme Name:** Maritime Internal Research & Development **Location:** Farnborough, with flexibility to work from home dependent on business demands **Salary:** £47,600 - £61,000 **Are you ready for your next career challen ...

Software Engineer III (Java / Spring)

Software Engineer III (Java / Spring) Are you passionate about building high‑performance backend systems?Do you thrive on solving complex engineering challenges with Java and Spring? About the team: Our team is dedicated to unlo ...

Java Full Stack Software Engineer

At Redwood, we empower our customers with lights-out automation for their mission-critical business processes. Overview Redwood Software is the leader in full stack automation fabric solutions for mission-critical business processes. Our SaaS-based composable automation platfo ...

Contract Software Engineer (Java / Kotlin)

Senior Software Engineer, with strong Java / Kotlin skills and Kakfa, is required by a leading ecommerce company based in Manchester. This is a hands-on senior contract role. You'll own complex integration flows, define how a new team works, and put proper engineering foundations in place ...

Fullstack Software Engineer (.NET/Java)

What you'll do Help to build cloud based services and applications that form part of our Group Content Platform. Participate in all stages of the software development lifecycle, from initial analysis & design to implementation (using C# & Java ) and post launch support. Enh ...

Senior Software Engineer C# / Java

Overview Threecolts is the leading software suite for online & offline consumer brands (Amazon, Walmart, Target, Shopify, eBay, etc.). We’ve built a powerful ecosystem of software solutions to help businesses grow smarter — from revenue recovery and retail finance, to multichannel operations and p ...

Senior Principal Software Engineer (Java)

Senior Principal Software Engineer (Java) Manchester, United Kingdom At Anaplan, we are a team of innovators focused on optimizing business decision-making through our leading AI-infused scenario planning and analysis platform so our customers can outpace their competition and the market. ...

Software Engineer Java/JavaScript/Python

MCS Group is delighted to be partnering with a global technology organisation as they expand their Cyber Security Engineering teams with the addition of multiple Software Engineers across varying levels of experience. This is an opportunity to join a modern, cloud-first engineering environm ...

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