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Software Developer Engineer in Test (SDET)

Mr Who? MrQ is an award‑winning online casino launched in 2018. We're big on tech, big on performance, and most of all – big on fun. Over the years, we have experienced explosive growth, which means we need more rock stars to join our quest for total world domination. What You Will Do </ ...

Mid Level Software Engineer (Java / AWS)

Mid-Level Software Engineer (Java / AWS) We’re supporting a large, well-established UK organisation on a key digital delivery programme and are looking for two mid-level Software Engineers to join an existing engineering team. This is a hands-on development role suited to engin ...

Principal Software Engineer — Tech Lead & Impact

A leading technology firm in Greater London is seeking a Principal Software Engineer to design, develop, and maintain critical infrastructure. This role involves ownership of team deliverables, collaboration with external partners, and mentoring engineers. Candidates must have strong capabilities in backend and ...

Application Software Engineer Relocation to Tokyo

At Wayve we're committed to creating a diverse, fair and respectful culture that is inclusive of everyone based on their unique skills and perspectives, and regardless of sex, race, religion or belief, ethnic or national origin, disability, age, citizenship, marital, domestic or civil partnership status, s ...

Senior Software Engineer — AI Inference Systems

A leading AI research organization in the UK is seeking a software engineer to join their Inference team. This role focuses on building and maintaining AI infrastructure to support research and serve users globally. Candidates should have experience with distributed systems and machine learning systems. The posi ...

Senior Software Engineer II Investments Java

Senior Software Engineer II - Investments - Java Full-time Compensation: GBP 105,000 - GBP 130,000 - yearly Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Whether people ...

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 — AI Driven Platform

A tech-driven marketing solutions company is seeking a Software Developer to shape the next generation of its AI-native platform. The role involves designing robust features, building scalable backend systems, and collaborating with teams to deliver high-quality software. Ideal candidates have over 4 years of de ...

Senior Software Engineer / SRE Application Middleware

Description & Requirements Are you passionate about building high-performance systems that are fast, resilient, and operate at global scale? Join Bloomberg’s Application Middleware SRE team, where you’ll combine software engineering and systems expertise to keep the backbone of the Bloomberg Ter ...

Senior SRE & Software Engineer, Application Middleware

A global technology firm in London seeks a Site Reliability Engineer to design high-performance systems and ensure reliability for their infrastructure. The role involves building production-grade software and conducting in-depth systems analysis. Candidates should hold a degree in Computer Science or a related ...

Senior Java Software Engineer – Derivatives Platform

A leading global financial services firm is seeking a Software Engineer III to join its Equity Derivative Group. This role involves developing innovative technology solutions and collaborating with a diverse team of engineers in an Agile environment. Candidates should have in-depth knowledge of Java/JVM, experie ...

Staff Software Engineer, Privacy & Data Security

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have be ...

Senior Software Engineer, Event Streaming Systems

Senior Software Engineer, Event Streaming Systems 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 s ...

Lead Principal Software Engineer Cloud & Security

A leading consulting firm in Milton Keynes is seeking a Lead Principal Consultant for a contract role in Government, Defence & Security. The ideal candidate will have expertise in C# .NET Core or C++, along with experience in AWS, Docker, and security practices. The position offers a competitive day rate of £500 ...

Software Engineer — Real Time Engagement Platform

A forward-thinking tech company in Ipswich is seeking a Software Developer to enhance their Horizon platform. In this role, you'll design and develop web applications, troubleshoot existing systems, and mentor fellow developers. The ideal candidate has 4–8 years of experience in web-based applications, strong kn ...

Lead Substation Automation Software Engineer (SCADA)

A global power and energy company is seeking a Lead Software Engineer for Substation Automation to develop embedded and PC-based software for SCADA systems. The role includes enhancing existing systems and designing new architecture while ensuring compliance with industry standards. Candidates should possess exc ...

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 ...

Entry Level C++ Software Engineer – Trading

A leading financial technology firm in the City of London is seeking a graduate Associate Software Developer (C++) to join their core development team. You will work on the flagship product, FlexTRADER, enhancing trading systems used by major investment banks. Ideal candidates will have problem-solving skills an ...

Senior PLC Software Engineer Industrial Automation

A prominent recruitment agency is seeking a PLC Software Engineer in Dungannon, UK. The successful candidate will be responsible for designing, programming, and optimising PLC-based control systems for complex machinery. Applicants should have at least 5 years of experience in a relevant environment, a degree in ...

Test Systems Software Engineer (Hardware‑Integrated)

A technology consulting company in Stevenage seeks a Test Systems Software Engineer to design and develop test systems software for engineering applications. This role requires strong programming skills in C/C++ and C#, along with experience in automated test principles. You will work closely within a multidisci ...

Senior Software Engineer GenAI & AI Products

Tesco in Welwyn Garden City is looking for a Software Development Engineer III to lead in developing and operating GenAI-powered products, including LLM applications and workflows. The role focuses on translating complex issues into production-ready solutions while ensuring reliability and user impact. The candi ...

Contract Semiconductor Software Engineer (C++/C#)

A leading technology company in the UK is seeking a software engineer with experience in the semiconductor industry for a 6-month contractual role. Responsibilities include programming hardware interfaces and developing applications related to equipment control. The ideal candidate should possess strong skills i ...

Platform Software Engineer Platform Remote, UK

Ground Truth Labs GTL is a well‑funded, early‑stage startup developing state‑of‑the‑art digital technologies to better understand, diagnose and treat blood cancer patients. We have built an exceptional, small‑by‑design, interdisciplinary team to translate leading academic research into re ...

Java Engineer, Tooling — Ground Software & Dev

A leading software company in the space sector is seeking an experienced Java Engineer to join their innovative team in Edinburgh. This full-time role involves designing, developing, and testing ground software while collaborating with cross-functional teams to deliver high-quality software products. Candidates ...

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 ...

Defence Simulation Software Test Engineer Hybrid

An established defence company located in the UK is seeking a Software Tester to take ownership of testing complex defence simulation systems. The ideal candidate will have extensive software testing experience, hold necessary certifications, and be a British citizen due to security clearance requirements. This ...

Senior Software Engineer, Infrastructure / Efficiency / Productivity

Overview AI-First Automation & Intelligent Tooling Roku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we aim to power every television in the world. We connect consumers to content, enable publishers to build and monetize audiences, and provide advertisers uni ...

Quantum Software Engineer: Compiler & Error Mitigation

A pioneering quantum technology firm in Reading is seeking a Quantum Software Engineer. In this role, you will advance quantum systems by developing software for efficient compilation and execution of quantum programs. You’ll tackle challenges like quantum error mitigation and correction while collaborating with ...

Cyber Defense Software Engineer Hybrid (UK)

A cyber security consultancy in Gloucester is seeking a Software Engineer (Hybrid) to work on critical National Security projects. The ideal candidate will have strong skills in Java, Python, or Node, as well as knowledge in AWS, Docker, and Agile methodologies. Responsibilities include designing and documenting ...

Lead PLC Software Engineer – Automation & Commissioning

A leading automation company is seeking a Principal Software Engineer (PLCs) to lead the software delivery for complex bespoke automation projects. The role involves ensuring high standards in software implementation, guiding engineering teams through development and commissioning processes, delegating tasks, an ...

Sr Staff AI Software Development Engineer

Sr Staff AI Software Development Engineer Full-time Employment Type: Regular (PERM) Remote Work Available: No Senior Staff AI Software Engineer About the Role: We are seeking an experienced technical leader who can drive our AI Rec ...

Software Engineer Infrastructure,SWE Developer Foundations

Summary The SWE Developer Foundations organisation builds technologies and tools to help software engineers at Apple to do the best work of their lives. Our team supports that mission by building innovative infrastructure and tools to provide engineers with capabilities to quickly & efficiently bu ...

Senior Research Software Engineer, Multiphoton Microscopy

The Python Software Foundation is inviting applications for a Senior Research Software Engineer (Multiphoton Microscopy) based in the Neuroinformatics Unit. The role involves developing algorithms for processing brain imaging data and collaborating with leading researchers in neuroscience. Ideal candid ...

Forward Deployed Software Engineer UK Government

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and mor ...

Open Source Software Engineer – Impactful & Collaborative

A leading technology firm in London is seeking a talented Software Engineer to design and develop innovative software solutions. The ideal candidate will hold a Bachelor’s degree and have more than 3 years of experience in software development, demonstrating proficiency in programming languages like Python. This ...

Staff Software Engineer (Optimizely Analytics, Backend)

Introduction Optimizely Analytics is the industry leading warehouse native analytics platform. We are used by Canva, Grammarly, Alaska Airlines, and many more to unlock data-driven decisions for experiment analysis, product analytics, sales analytics and beyond. You will work in a small, nimble t ...

C++ Software Engineer Relocation to Amsterdam

C++ Software Engineer | Proprietary Trading | Amsterdam Elevate Partners are partnered with a global leading prop trading firm currently seeking experienced C++ Software Engineers to join their high-performing technology team in Amsterdam. Technology sits at the core of the business ...

Software Engineer Signal Processing & AI (Hybrid)

A global leader in maritime defense solutions seeks a Software Engineer to focus on C++ development and signal processing. This role involves architectural design, algorithm implementation, and peer review. Candidates should have experience in multi-threaded design and expertise in AI/ML techniques. Benefits inc ...

Staff Software Engineer, FinTech — Credit & Underwriting

Ebury is seeking a Staff Software Engineer in Greater London. This key role involves leading technical design for critical financial systems and mentoring engineers. Ideal candidates will have a strong technical foundation in computer science, with extensive experience in fintech and building scalable systems. E ...

Software Engineer AI Tooling & Developer Experience

Matillion Limited is looking for a mid-level Software Engineer to join our Internal Engineering Platform team in Manchester. The role emphasizes developing solutions for the developer lifecycle and integrating AI tools to enhance engineering workflows. Candidates should have strong Python skills, DevOps exper ...

Structural Engineer – Technical Support & Software Applications

This is a varied and hands‑on role, ideal for a structural engineer who enjoys problem‑solving, communicating technical concepts, and working closely with both customers and developers. As a 1st Line Support Engineer / Software Applications Engineer, you will be the first point of contact for techn ...

Staff Software Engineer DevSecOps (Cyber/Defence)

A global aerospace and defence company in Gloucester is seeking a Staff Software Engineer to work on cutting-edge Defence and Cyber programmes. You will play a pivotal role in software systems development, influence architectural decisions and mentorship of junior staff. This position offers competitive benefits ...

C++ Software Engineer Hybrid Imaging Tech

A pioneering technology company is seeking a C++ Software Engineer to develop and maintain software systems. You'll collaborate in a hybrid environment, contributing to cutting-edge imaging technology. The ideal candidate will have a strong C++ background, experience with Linux, and familiarity with REST APIs an ...

Mission Software Engineer: Field Deployments & AI

A global technology company is seeking a Mission Engineer to drive software deployment and solve critical technical challenges. You will design, implement, and improve software, integrating data from edge sensors and applying machine learning solutions. The ideal candidate has a background in Computer Science, w ...

Senior Software Quality Assurance Engineer (Hybrid)

A leading defense organization in Bristol seeks a Quality Assurance Engineer - Software Quality. The role involves improving QA skills and collaborating with teams to ensure high-quality missile systems. Ideal candidates will have experience in software development and quality assurance, with strong communicatio ...

New Grad Software Engineer Production Infrastructure

A leading technology company in London is seeking a Software Engineer responsible for driving large-scale transformations through data and AI. You'll own the product lifecycle and work with diverse teams to deliver impactful solutions. Ideal candidates have experience in programming languages like Java, C++, and ...

C++ Software Engineer — Broadcast Systems, Kubernetes

A leading global technology company is seeking a Software Engineer to work on developing core components for their broadcast control system, Cerebrum. The ideal candidate will have 5-8 years of experience in modern C++ and Kubernetes, along with a focus on quality and problem-solving. This role offers flexible s ...

C++ Software Engineer – HFT Desk (London)

A leading trading firm in London is seeking a skilled Software Engineer with expertise in C++ for their high-frequency trading team. The role involves working closely with traders and researchers to enhance algorithmic trading strategies. You will contribute to critical systems that process vast data and optimiz ...

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 ...

Software Engineer (Distributed Systems & ML Infrastructure)

Role: Software Engineer (Distributed Systems & ML Infrastructure) Client: Elite Tech Firm Compensation: Up to £220k Base + Industry-Leading Bonus Location : London (Hybrid) Overview ...

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    Full Stack Software Engineer Javascript React Elixir Jobs in United Kingdom Job Search Guide, Trends and Insights