241,525+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Software Engineer Hardware Integrated Systems (Cambridge)

A biotechnology innovator in Cambridge is seeking a Software Engineer to develop software for their Amperia analytical instrument with a focus on machine control and hardware integration. You will work closely with scientists and engineers, contributing to the seamless operation of complex systems. The ideal can ...

GPU Kernel Engineer, Onboard Software Platform

Where you will have an impact As an Embedded Kernel Engineer within our dynamic team, you'll be instrumental in deploying Wayve's autonomous vehicle (AV) AI model across consumer vehicles. Your role is crucial in developing model compilers and crafting high-performance kernels for efficient inferenc ...

Backend Software Engineer C# .Net Core

Get AI-powered advice on this job and more exclusive features. 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 Senior ...

Principal Software Engineer: Cloud Modernisation Lead

AVEVA Denmark is seeking a Principal Software Engineer to lead the modernisation of sophisticated process optimisation platforms. This role combines architectural leadership with hands-on software development, transforming a legacy C++ codebase and shaping the future of industrial software. The ideal c ...

Staff Software Engineer — Lead Platform Architect

A financial technology company in London is seeking a Lead Engineer to shape the future of investments by developing scalable systems. The successful candidate will have a strong background in system architecture and programming, lead technical projects, and mentor teams. This role offers a competitive salary, h ...

Principal Software Engineer: Architecture & Cloud Leadership

LexisNexis Risk Solutions is looking for a Principal Engineer to guide technical direction and foster a culture of excellent engineering practices. The successful candidate will lead collaboration across teams and ensure high architectural standards while driving significant technical initiatives. The ...

Remote Senior Software Engineer – Merchant Solutions

Olo, a leading SaaS platform for the restaurant industry, is hiring a Senior Software Engineer in Belfast to join the Merchant Solutions team. This remote role involves developing Olo Pay functionalities, mentoring junior engineers, and ensuring high-quality code through effective leadership. Candidates should h ...

Staff Software Engineer Engine by Starling

Description At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to powe ...

Software Engineer AWS, Angular & .NET Core

A leading global data firm is seeking a motivated Software Engineer to join an Agile team in Tetbury, UK. The role involves developing scalable software using C#, Angular, and AWS. Candidates should have 3-5+ years of experience in software development, including Agile methodologies. The firm values a people-fir ...

Software Engineer Happiness Delivery & AI Automation

ON.com in Greater London is looking for a Software Engineer to join their Happiness Delivery team. In this role, you will develop services and intelligent solutions aimed at enhancing customer interactions and driving loyalty. You'll utilize modern technologies like NestJs and TypeScript, while collaborating wit ...

Software Engineer III: AWS Platform & Serverless

JPMorganChase is seeking a Software Engineer III to join their International Consumer Bank team in Greater London. You will focus on building AWS-native services for Agent Assist workflows, ensuring high standards of reliability and security. The ideal candidate has over 5 years of software engineering ...

Graduate Software Engineer Rotational Program (Hybrid)

Autodesk is looking for motivated Graduate Software Engineers to join their Birmingham team as part of a full-time graduate programme. This role offers hands-on experience across various technologies within Agile Scrum teams, allowing recent graduates to make a real impact in software development. Appl ...

Software Development Engineer in Test (SDET)

AVEVA is creating software trusted by over 90% of leading industrial companies. Job Title Software Development Engineer in Test (SDET) Location Derry/Londonderry or Cambridge, United Kingdom (Hybrid) Employment Type Full Time Job Overview ...

Senior Software Engineer AI Powered Platform

Experis is looking for a Senior Software Engineer in Central London to join their AI engineering team. This role offers genuine ownership and the chance to solve complicated technical challenges across distributed systems, cloud infrastructure, and more. The team emphasizes adaptability and engineering ...

Senior Software Engineer, GenAI & LLM Apps

Tesco is hiring a Senior Software Development Engineer III to lead the development of GenAI powered products in a hybrid environment. This role involves translating complex business challenges into effective production-grade solutions while ensuring reliability and user satisfaction. Candidates should ...

Software Engineer, Frontier AI Platform (Hybrid)

Faculty in Greater London is seeking a Software Engineer to join their Technology team. You will significantly scale the Frontier Decision Intelligence platform aiming to build a high-impact AI-focused product. The role involves contributions to complex problems in healthcare logistics and military operations ...

Founding Software Engineer Up to £200K

We’re working with an early-stage startup building AI voice agents used by real businesses (not demos). This is a true founding engineer role — you’ll have a direct hand in shaping the product, architecture, and how the company builds from day one. What you’ll be doing Build ...

Senior Software Engineer C++ Trading Technologies

The team Join our Exchange team and start building the internet of money. The Exchange team is responsible for everything to do with the trading backend services such as the matching engine, market data gateways, internal and external APIs, margin systems and various other trading services. The t ...

Frontend Software Engineer Frictionless Shopping UX

On the Beach in Manchester is seeking a Software Engineer IC2 (Mid Level) to join the Shopping Experience team. In this role, you will build user-friendly experiences that help customers customize their holiday packages. You'll work closely with cross-functional teams to improve customer outcomes and drive bu ...

Quantum Software Engineer Hybrid, UK Based

A national laboratory for quantum computing in Oxfordshire is seeking two Software Engineers to enhance the UK’s quantum capabilities. You will collaborate with leading scientists and work on software for quantum computing systems. Strong skills in C# and .NET are essential, along with a relevant degree. This ro ...

Senior Software Engineer Distributed Risk Engine

Citigroup Inc. is looking for a Senior Engineer to take on the role of Applications Development Technology Lead Analyst for the XiP calculation platform. The position requires extensive knowledge of Java and experience in building and maintaining distributed systems. The successful candidate will desig ...

Software Engineer – Web Apps & Platform Modernisation

Aviva is looking for a Software Engineer in Sheffield or York to develop and maintain web applications within a collaborative team. This role offers an opportunity for career growth, participating in the modernization of legacy tech and implementing new projects. The ideal candidate will have experienc ...

C++ Software Engineer Command & Control Systems

AEROCONTACT in Bristol seeks a C++ Software Engineer to contribute to developing next-generation air defence systems. This hands-on role involves designing command and control architectures and collaborating with stakeholders to refine solutions. The ideal candidate will have a strong software engineer ...

MOD DV Cleared Senior Software Engineer

MOD DV Cleared Senior Software Engineer Permanent Location: Portsmouth / Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python / C++ / Legacy Modernisation / Complex Systems, MOD DV Clearance We are looking to ...

Principal Software Engineer, Policy Platform & AI

Menlo Security Inc. is seeking a Principal Software Engineer I for the R&D Policy Team in Bracknell, UK. This role involves architecting critical services in a cybersecurity context, focusing on policy management and enforcement. The ideal candidate will have extensive experience in backend development, cloud ...

Junior Embedded Software Engineer – R&D

Cubic Corporation in Camberley is seeking a motivated Junior Developer to join their dynamic R&D team. The successful candidate will work on the Vocality RoIP, contributing to networking, LTE, and Push-To-Talk radio communications. This opportunity is perfect for those eager to expand their skills in s ...

Senior Software Engineer (Real Time Embedded)

Job Description: Real Time Embedded Software Engineers – Capability Green Luton Your Impact Are you a passionate Real-Time Embedded Software Engineer with a few years of experience and looking to take the next step in your career? Do you want to work for an e ...

Senior Software Engineer (£80k + 10% bonus)

Senior Software Engineer (£80k + 10% bonus) Great opportunity for a Senior Software Engineer to work for a retail company near Manchester going through a digital transformation. This role is onsite 3-4 days per week so we’re looking for people who enjoy in person collaboration in a fast-paced ...

Senior Research Software Engineer, Web Development

About the role We are seeking a Senior Research Software Engineer (RSE) to lead software development on web projects related to research within the Department of Infectious Disease Epidemiology (DIDE), School of Public Health, Imperial College London. This post is hosted within the Department’s R ...

Senior Software Engineer Systematic Trading Infrastructure

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading ...

Senior Software Development Engineer in Test

Why PlayStation? PlayStation isn’t just the Best Place to Play — it’s also the Best Place to Work. Today, we’re recognized as a global leader in entertainment producing The PlayStation family of products and services including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, acclai ...

Senior Software Engineer: Architect Trading Systems

A leading recruitment agency is seeking a Senior Software Developer in Greater London to architect and enhance in-house trading systems. This role involves developing high-performance applications primarily using C# and .NET, mentoring junior developers, and leading architectural discussions. Candidates should h ...

Senior Software Engineer — Greenfield Projects & Mentorship

Uniting Ambition is looking for a Senior Software Engineer to join a progressive team in Greater Manchester. This role emphasizes engineering best practices such as TDD and OOP, requiring a passion for clean, high-quality code and continuous improvement. You will collaborate closely with team members, ...

Associate Software Engineer Data Intelligence (ADX)

Who We Are Addepar is a global data and AI platform empowering investment professionals to turn complex financial information into actionable intelligence. Addepar unifies portfolio, market and client data in a total portfolio view and delivers AI‑powered insights within investment and client wor ...

Graduate Software Engineer: AI & Networking Systems

A leading technology firm is seeking a dynamic Software Development Engineer in Cambridge, UK. Ideal for recent graduates, the role involves validating software features, collaborating with teams, and contributing to next-generation software for networking solutions in a hybrid work environment. Candidates shoul ...

Hybrid Principal Software Engineer & Tech Leader

8th Light is seeking a Principal Engineer in London to lead AI integration and technical strategy. You will collaborate with clients, guide technical direction, and mentor teams to ensure high-quality software solutions. Ideal candidates will have 10+ years of experience in consulting, a solid technical backgrou ...

Software Engineer II Frontend (React/TypeScript)

## Software Engineer II - Frontend (React/TypeScript)Applyremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: JR # **Welcome to the Agentic Commerce Era**## At Commerce, our mission is to empower businesses to innovate, grow, and thrive wit ...

Staff Software Engineer, Product Engineering, UK

About the Role Our engineering culture strives to create an environment where engineers own and deliver product features end‑to‑end, from research through design to implementation. As a product engineer, you will write product specs, create wireframes, and build the product with minimal oversight ...

Hybrid Software Test Engineer – Automation & Quality

A technology solutions provider based in Great Torrington seeks a Software Test Engineer. This entry-level role involves developing and executing test plans, identifying issues, and ensuring software quality. Ideal candidates will have an analytical mindset, a passion for testing, and a collaborative approach to ...

Staff Software Engineer in London Booksy

Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

Kyriba Specialist Software Engineer I — Hybrid

Checkout Technology Ltd in Greater London is looking for a software engineer to develop next-generation payment technologies. You will lead solution design for the Kyriba Treasury Management System and engage with stakeholders to ensure project success. Qualified candidates will have at least 3 years o ...

Embedded Software Engineer – AI & Data Center

A leading technology company in Belfast is looking for a Software Design Engineer to join their Data Centre design team. This role involves developing and verifying embedded software for next-generation AI products, with a strong focus on innovation and collaboration. Candidates should have a proven track record ...

Manager Senior Software Engineer (AI Projects)

Overview You’ll be joining PwC’s Risk Line of Service, within our AI & Modelling team, working at the forefront of AI-enabled transformation in the insurance sector. Role Overview As a Manager / Senior Manager, you will sit close to the technology: shaping solution architecture, ...

Senior Software Engineer, Trading (C++/Python)

DRW is seeking a Software Engineer for their Cumberland Systematic team in London. In this role, you will design and develop critical trading systems while collaborating closely with quantitative researchers and traders. A strong background in C++ and Python is required, along with experience in developing hi ...

Software Engineer — Government‑Tech, TDD & Pairing

Opencast | B Corp™ is looking for a Software Developer in Greater London. This role emphasizes building software with engineering craft and collaboration. Candidates should have expertise in Java or Scala, and hold or be eligible for SC Clearance. Responsibilities include collaborating on testing efforts, implem ...

Senior Software Engineer, Embedded UI C++

Overview Senior Software Engineer, Embedded UI - C++ at Roku. Location: Manchester, United Kingdom. Teamwork makes the stream work. Roku is changing how the world watches TV. We are the #1 TV streaming platform in the US, Canada and Mexico, and we aim to power every television in the world. ...

Senior Software Engineer, Payments & Incentives (Equity)

Join Quantcast as a Senior Software Engineer in the Payments & Incentives team. This role involves designing payment solutions and managing billing systems within a large-scale digital advertising platform. You'll work closely with multiple teams to deliver innovative solutions and ensure operational reliabil ...

Senior Software Engineer I – AI Engineering

About the Team Our team builds LeapSpace, the research companion for the people working at the frontier of human knowledge: researchers, clinicians, and innovators advancing science, healthcare, and life sciences. We help them ask better questions, follow ideas across disciplines, and reach decis ...

Software Engineer (Mid and Senior Levels)

Software Engineer (Mid and Senior Levels) Bristol-Based Office Full-Time 37.5 hours, over 5 days The software technology team at One Big Circle is expanding! We are looking for software engineers at all levels of seniority and experience to integrate into our existing team and ...

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