427,759+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

C++ Software Engineer

An award-winning Technology Company seeks a C++ Software Engineer with proven industrial experience of object-orientated programming and design patterns to join their expanding team. You'll work across the full development lifecycle with a focus on efficient algorithms, robust system ...

Software Quality Engineer

ABOUT ORGANOXOrganOx is a commercial stage organ technology company dedicated to developing technologies to improve outcomes for patients with acute or chronic organ failure. The company was established as a spin out of the University of Oxford in 2008 and is now part of the Terumo Group. OrganOx is a ...

Senior Software Engineer

🚀 Our mission is to create tech that makes a difference, empowers teams, delights customers, and shapes the media world of tomorrowWe’re one of the leading media advertising companies with over 33,000 advertising sites across the UK and EU.As part of the global Bauer ...

Embedded Software Engineer

Job DescriptionWork on cutting‑edge embedded software systems supporting advanced avionics and land‑based defence platforms. Join ALTEN Ltd as an Embedded Software Engineer, where you’ll develop robust, real‑time software that underpins mission‑crit ...

Staff Software Engineer

Your newpany We’re partnering with a growing, technology-driven organisation that develops software used by businesses to enhance their digital capabilities. Operating globally, thepany provides a flexible platform that supports a wide range of use cases across modern digital environments. With ...

Staff Software Engineer

Staff engineering at Opus 2 is about what happens when complex problems span multiple teams or systems and someone needs to make them tractable. You'll set technical direction across a domain, lead the work that no single squad can pick up alone, and shape how the engineering organisation builds software at t ...

Senior Software Engineer

G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms that underpin systematic trading strategies a ...

Senior Software Engineer

Job DescriptionSenior Software EngineerA fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment, you will play a key ...

Manufacturing Software Engineer

The RoleDevelop and maintain in-house software tools for manufacturing operationsIntegrate software with manufacturing equipment, automation systems, and hardwareWork closely with Manufacturing, Production, Quality, Automation, IT, and NPI teamsSupport automation of data collection, reportin ...

Senior Software Engineer

Job DescriptionSenior Software EngineerA fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment, you will play a key ...

Lead Software Engineer

Permanent Lead Software Engineer Software Engineering Gloucester About the Role We’re expanding our team in Gloucester and have multiple opportunities for talented Lead Software Engineers to join us across a variety of Defence, Cyber and Intelligenc ...

Simulation Software Engineer

Location: London Travel: Travel required several times per year (UK and international), sometimes at short notice and for up to 1 weekSecurity: Must be eligible to obtain and maintain UK security clearance to at least SC lev ...

Senior Software Engineer

The Opportunity We're looking for a Software Engineers and Senior Software Engineers with strong software development experience across the full development lifecycle to design and develop the software that powers advanced electro-optical systems used in Air Defence, cUAS and Surveilla ...

Principal Software Engineer

We are looking for a Principal Software Engineer (we call them Principal Software Craftspeople) who shares the same values of pragmatism, professionalism and transparency as us to join our team. You'd be utilising your expertise with clients, helping to shape Codurance, and being involved in coaching and ment ...

Principal Software Engineer

We are looking for a Principal Software Engineer (we call them Principal Software Craftspeople) who shares the same values of pragmatism, professionalism and transparency as us to join our team. You'd be utilising your expertise with clients, helping to shape Codurance, and being involved in coaching and ment ...

Senior Software Engineer

Looking for a senior role where you can make a positive impact on people’s lives? This is one of those rare opportunities where the projects you work on can help someone with ...

Senior Software Engineer

Senior Backend Engineer – Python/Django | Climate Tech Scale-Up | Central Londonc.£85-95k Ready to make real impact with your code? This climate-tech scale-up is going through the gears, backed by world-class investors, and heading towards a big future. They’ve built a platfor ...

Senior Software Engineer

Description Ultra-PCS is seeking a talented C/C++ Software Engineer who has experience in embedded software development, passionate about learning software and keen to join dynamic team.Ultra PCS is a leader in providing solutions for aerosp ...

Senior Software Engineer

Role: Full Stack DeveloperSalary: £60,000 - £70,000 + Company BonusLocation: Hybrid - Nottinghamshire (Once a week)Type: Permanent About the job: If you are a Senior Full St ...

.NET Software Engineer

Job Description Microsoft Azure · .NET · C# · TypeScript · · Angular · SQL Server · Machine Learning · Web · Git We are seeking someone who is eager to take their software engineering career to the next level. This is an exciting role with excellent career and salary opportu ...

Senior Software Engineer

Role: Senior Software EngineerLocation: Cambridge, Hybrid (3 days onsite)Salary: Up to £k + Bonuses DOEAre you a Senior Software Engineer who thrives on solving complex technical challenges and building high-performance systems? Join an innovative Cambridge-based team ...

Principal Software Engineer

Step into a world where innovation meets impact. This Principal Software Engineer role offers you the chance to be a part of cutting-edge defence technology, driving advancements that redefine security and protect lives. Working in a dynamic and collaborative environment, you'll lead projects that make a real ...

Senior Software Engineer

Role: Senior Software EngineerLocation: Essex - 5 days a week onsitePay rate: £-£p/d (outside IR35)I'm looking for an experienced C++ engineer looking to work on genuinely complex, mission-critical software. This role is fully on-site, 5 days a week.We're worki ...

Software Test Engineer

Software Test EngineerLocation: NorthLondon Sector: Advanced Defence & Maritime TechnologyOverviewWe are supporting a leading engineeringorganisation specialising in advanced sensing, navigation and mission-criticalsystems used within mar ...

Software Engineer (Linux)

Join Proton and build a better internet where privacy is the defaultProton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, P ...

Junior Software Engineer

The first few years of your engineering career shape how you think for the rest of it. We want juniors who are curious, who pick things up fast, and who take that early learning seriously. You'll join a squad working on real production code from day one, with senior engineers around you whose job includes gro ...

Senior Software Engineer

Job DescriptionSenior Software EngineerA fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment ...

Quantum Software Engineer

At OQC, we aren’t just theorising about the future; we’re building it. Born from a philosophy of bold innovation, we’ve successfully transitioned quantum computing from an academic dream into a commercial reality. The most exciting thing is that we’re just getting started.As a Quantum Software E ...

Principal Software Engineer

Description The Ultra Engineering function manages a portfolio of specialist capabilities, generating highly differentiated solutions and products by applying electronic, mechanical, and software technologies in demanding and critical environments to meet customer need ...

Senior Software Engineer

Hours:Full time permanent role - Mon to Fri - 9am - 5pmHybrid workingClosing Date:Tue, 23 Jun 2026We’re looking for a Senior Software Engineer to join our Integration team at Skipton Building Society. This is a hands-on role building REST APIs, even ...

Graduate Software Engineer

Join a highly regarded engineering company working on complex, real-world problems across software and hardware systems. As a graduate engineer, you’ll work on projects spanning embedded systems, high-performance low-level software and data and signal processing. These projects often integrate custom hardware ...

Software Support Engineer

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the wor ...

Staff Software Engineer

About Foundation HealthFoundation Health is transforming healthcare through an AI-powered digital pharmacy platform that seamlessly connects operational infrastructure with high quality patient experiences. Our mission is to transform patient centric care by connecting fragmented infrastructure, optim ...

Lead Software Engineer

MANUAL is a fast growing Healthtech scale-up, aiming to be the healthcare provider that millions of people trust as their partner to a long and healthy life. Our platform allows users to quickly and safely diagnose possible conditions, get treatment and support them afterwards to live a higher quality life. To d ...

Senior Software Engineer

The MissionAt Adzact, we are building an autonomous B2B ad engine.B2B companies spend tens of billions on paid media annually, yet they are forced to use tools built for B2C ecomm ...

Software Development Engineer

WHAT YOU DO AT AMD CHANGES EVERYTHINGAt AMD, our mission is to build great products that accelerate next-generation computing experiences—from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes ...

Senior Software Engineer

Flexera saves customers billions of dollars in wasted technology spend. A pioneer in Hybrid ITAM and FinOps, Flexera provides award-winning, data-oriented SaaS solutions for technology value optimization (TVO), enabling IT, finance, procurement and cloud teams to gain deep insights into cost optimization, com ...

Principal Software Engineer

We are looking for a Principal Software Engineer (we call them Principal Software Craftspeople) who shares the same values of pragmatism, professionalism and transparency as us to join our team. You'd be utilising your expertise with clients, helping to shape Codurance, and being involved in coaching and ment ...

Software Deployment Engineer

Software Deployment & Endpoint Specialist to join a fast-paced IT environment supporting a multi-site, multi-domain organisation.Key ResponsibilitiesDeploy and maintain software across the end-user estate using Microsoft IntuneManage software updates, patching, and auto-update strategies to imp ...

Simulation Software Engineer

C# Real-Time Simulation Engineer (Defence Systems) Bristol | Hybrid (2–3 days onsite) | Sole British nationals only Before you apply - This is not a general software or web development role. We are not looking for candidates whose experience is primarily in:Web / ...

Senior Software Engineer

About Us We’re Dayshape—an award-winning software scale-up with big ambitions and the momentum to match. Trusted by Big Four and many other top professional services firms globally, our AI-powered resource management platform is helping organisations to achieve extraordinary ...

Principal Software Engineer

Are you excited to influence technical direction across teams while still contributing hands‑on to complex, high‑impact engineering challenges? Do you want to shape domain architecture, mentor senior engineers, and connect technical decisions to real customer and business outcomes? About o ...

Staff Software Engineer

About Foundation Health Foundation Health is transforming healthcare through an AI-powered digital pharmacy platform that seamlessly connects operational infrastructure with high quality patient experiences. Our mission is to transform patient centric care by connecting fragmented infrastructure, ...

Golang Software Engineer

About the team The Payment Performance Team focuses on ensuring payments succeed and generates higher revenues for our merchants by maximizing conversion rates and minimizing fraud rates. The role utilizes ML and smart rules, and an experiment-driven approach to achieve gradual improvements. < ...

Python Software Engineer

Python Software Engineer – Fullstack | Green Tech £40,000-65,000 Python, TypeScript/Reactjs - AWS Hybrid - Essex Energy-tech company Real-world product solving complex problems in industrial energy systems We’re partnered with a fast-growing green-t ...

Software Engineer Intern

Machine Learning Software Development AI Internship E-commerce Join Bloomreach as a Clarity Intern and help build the future of personalized shopping experiences! You'll work on Clarity, a virtual shopping assistant powered by Gen AI and LLMs, designed to provide real-time, data-driven guidance t ...

Principal Software Engineer

Are you excited to influence technical direction across teams while still contributing hands‑on to complex, high‑impact engineering challenges? Do you want to shape domain architecture, mentor senior engineers, and connect technical decisions to real customer and business outcomes? RX Global aims to ...

Senior Software Engineer

1 week ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This range is provided by Prism Digital. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message ...

Junior Software Engineer

This range is provided by IC Resources. 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 IC Resources Embedded Software & Cryptography Recruitment Specialist | Assisting Embedded Soft ...

Senior Software Engineer

London, United Kingdom Senior Software Engineer Location: London, United Kingdom Department: Engineering Requisition ID: JOBREQ- Role description The opportunity The Unity Studio Productions team is a group of highly skilled Softw ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Buffering Video...

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