Southampton, England, United Kingdom Hybrid / WFH Options
Octagon Group
Embedded Software Engineer Southampton/Hybrid, 3 days on site/flexible hours Defence technology/security clearance required £50,000 - £65,000 Are you an Embedded Software Engineer looking to contribute to cutting-edge defence technology? Based in Southampton, this Embedded Software Engineer job offers the opportunity to work on advanced embedded systems in a secure … environment. Due to the sensitive nature of the projects, security clearance will be required. The Senior Embedded Software Engineer’s main responsibilities: - Develop C/C++ code for embedded systems and user interfaces - Design and develop GUIs using commercial and open-source libraries - Develop system control, monitoring software, and video processing applications - Design and implement test frameworks and … stimuli Skills required: - Experience in C/C++ programming for embedded systems - Familiarity with GUI and video processing software development - Linux device driver development Security Requirements: Due to the nature of this role, candidates must be eligible for security clearance and be a UK passport holder. The package for the Embedded Software Engineer in Southampton: Salary More ❯
portsmouth, hampshire, south east england, united kingdom Hybrid / WFH Options
Octagon Group
Embedded Software Engineer Southampton/Hybrid, 3 days on site/flexible hours Defence technology/security clearance required £50,000 - £65,000 Are you an Embedded Software Engineer looking to contribute to cutting-edge defence technology? Based in Southampton, this Embedded Software Engineer job offers the opportunity to work on advanced embedded systems in a secure … environment. Due to the sensitive nature of the projects, security clearance will be required. The Senior Embedded Software Engineer’s main responsibilities: - Develop C/C++ code for embedded systems and user interfaces - Design and develop GUIs using commercial and open-source libraries - Develop system control, monitoring software, and video processing applications - Design and implement test frameworks and … stimuli Skills required: - Experience in C/C++ programming for embedded systems - Familiarity with GUI and video processing software development - Linux device driver development Security Requirements: Due to the nature of this role, candidates must be eligible for security clearance and be a UK passport holder. The package for the Embedded Software Engineer in Southampton: Salary More ❯
Ready to Build Software That Shapes the Future? Do you enjoy turning complex ideas into elegant code? Do you get a kick out of seeing your work power real-world machines and cutting-edge technology? We’re partnering with a science-led technology company that’s breaking boundaries in materials engineering. They’re designing and building systems that don … make it happen. Why You’ll Want to Be Here This isn’t just another coding role. You’ll be working alongside engineers, scientists, and hardware specialists to build software that connects advanced machinery with intuitive user interfaces. Your code will play a direct part in groundbreaking projects that span multiple high-tech industries. Every day brings a new … overall system architecture and technical direction Writing clean, reliable code and documentation to support growth About You We’re looking for someone who’s excited by the crossover of software and hardware, and who thrives in a collaborative environment. You’ll fit well if you bring: 2+ years of professional development experience Strong C# skills (extra kudos if you More ❯
Ready to Build Software That Shapes the Future? Do you enjoy turning complex ideas into elegant code? Do you get a kick out of seeing your work power real-world machines and cutting-edge technology? We’re partnering with a science-led technology company that’s breaking boundaries in materials engineering. They’re designing and building systems that don … make it happen. Why You’ll Want to Be Here This isn’t just another coding role. You’ll be working alongside engineers, scientists, and hardware specialists to build software that connects advanced machinery with intuitive user interfaces. Your code will play a direct part in groundbreaking projects that span multiple high-tech industries. Every day brings a new … overall system architecture and technical direction Writing clean, reliable code and documentation to support growth About You We’re looking for someone who’s excited by the crossover of software and hardware, and who thrives in a collaborative environment. You’ll fit well if you bring: 2+ years of professional development experience Strong C# skills (extra kudos if you More ❯
Senior Software Engineer If you would like to know a bit more about this opportunity, or are considering applying, then please read the following job information. We're supporting a pioneering technology company who are building some of the most advanced systems in the world. They're now looking for a Senior Software Engineerto join their growing team … fantastic opportunity to work on unique challenges that will push the boundaries of what's possible in computing. You'll collaborate with highly skilled engineers and scientists, developing the software that drives complex hardware platforms and contributes to world-class innovation. The role As a Senior Software Engineer, you'll work across a variety of technical areas, including More ❯
Java Developer - Build software that matters! Java, Spring, React, TDD, AWS, Azure A fast-growing technology company is expanding its engineering team and hiring x3Java developers across mid and senior levels. They’re building intelligent, mobile-first software that supports real-time decision-making in high-pressure environments where speed, clarity, and reliability are essential. The systems … this company work on greenfield projects, designing APIs and services that power mobile and web platforms. The stack is modern Java 17+, Spring Boot, cloud-native architecture and the engineering culture values clean code, thoughtful design, and true problem-solvers. They’re looking for developers who enjoy solving complex challenges, care about performance and security, and want to build … systems that scale. Whether you’re mid-level and ready to grow, or senior and looking to lead, this is a chance to contribute to software that’s making a real-world impact. If you’re ready to build meaningful systems with a team that’s driven by impact, they’d love to hear from you. For successful Java More ❯
Shoreham-By-Sea, England, United Kingdom Hybrid / WFH Options
Joyned
time | Salary + Equity | Purpose-led startup Joyned is on a mission to help organisations build strong, safe communities through better communication. We’re looking for a hands-on software engineer to take ownership of our codebase and help shape how the product evolves. We’re a funded startup, built in partnership with Brightec (the team behind apps for … has already helped churches, charities, events and commercial organisations (including Hillsong, Big Church Festival, Newday and Lifetime Brands) transform how they connect with their communities. This is a solo engineering role, as we kick-off our in-house engineering team. You'll be our only full-time engineer, writing, testing and shipping code across the whole stack. You More ❯
Job Title: Software Engineer - C Python Location: West Sussex (Hybrid) Contract Length: Permanent Salary: up to £60,000 + package (depending on experience) Start Date: ASAP Company Overview Our client is on a mission to revolutionize cancer treatment by making radiation therapy more human, accessible, and effective. With a focus on upright patient positioning and cutting-edge technology, they … cancer is treated globally. Their passionate team is developing tomorrow's treatments today, combining innovation with compassion to improve patient outcomes and experiences. Role Overview We are seeking a Software Engineer (Level I-II) to join our client's dynamic engineering team. This role involves designing, developing, testing, and maintaining software for complex medical devices, ensuring compliance … Develop requirements, design specifications, and implementation for service tools used with medical devices. Collaborate with the service organization to gather use cases and requirements. Build desktop and web-based software applications. Follow QMS procedures, write supporting documentation, and apply CI best practices. Support configuration management and build systems. Skills & Experience 3+ years of experience developing with Python. Experience with More ❯
Job Title: KDB+/Q Software Engineer Client: Elite High Frequency Trading Firm Salary: £70,000 - £225,000 Base (+ Bonus) Location: London (Hybrid) Experience Level: Junior, Mid and Senior Level Positions. My client is looking for a KDB+/Q Software Engineer to join their rapidly expanding development team, leveraging KDB+/Q to streamline and automate … a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a KDB+/Q Software Engineer, you will play a pivotal role in the firm's operations, working on the greenfield development of data intensive applications. This position offers a unique opportunity to join … to extract and manipulate data for strategy testing and signal generation. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a KDB+/Q Software Engineer. 1+ years of experience in a relevant role such as Software Engineer or Quant Developer Proficiency in modern software development practices, including version control and agile More ❯
london, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: KDB+/Q Software Engineer Client: Elite High Frequency Trading Firm Salary: £70,000 - £225,000 Base (+ Bonus) Location: London (Hybrid) Experience Level: Junior, Mid and Senior Level Positions. My client is looking for a KDB+/Q Software Engineer to join their rapidly expanding development team, leveraging KDB+/Q to streamline and automate … a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a KDB+/Q Software Engineer, you will play a pivotal role in the firm's operations, working on the greenfield development of data intensive applications. This position offers a unique opportunity to join … to extract and manipulate data for strategy testing and signal generation. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a KDB+/Q Software Engineer. 1+ years of experience in a relevant role such as Software Engineer or Quant Developer Proficiency in modern software development practices, including version control and agile More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: KDB+/Q Software Engineer Client: Elite High Frequency Trading Firm Salary: £70,000 - £225,000 Base (+ Bonus) Location: London (Hybrid) Experience Level: Junior, Mid and Senior Level Positions. My client is looking for a KDB+/Q Software Engineer to join their rapidly expanding development team, leveraging KDB+/Q to streamline and automate … a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a KDB+/Q Software Engineer, you will play a pivotal role in the firm's operations, working on the greenfield development of data intensive applications. This position offers a unique opportunity to join … to extract and manipulate data for strategy testing and signal generation. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a KDB+/Q Software Engineer. 1+ years of experience in a relevant role such as Software Engineer or Quant Developer Proficiency in modern software development practices, including version control and agile More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: KDB+/Q Software Engineer Client: Elite High Frequency Trading Firm Salary: £70,000 - £225,000 Base (+ Bonus) Location: London (Hybrid) Experience Level: Junior, Mid and Senior Level Positions. My client is looking for a KDB+/Q Software Engineer to join their rapidly expanding development team, leveraging KDB+/Q to streamline and automate … a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a KDB+/Q Software Engineer, you will play a pivotal role in the firm's operations, working on the greenfield development of data intensive applications. This position offers a unique opportunity to join … to extract and manipulate data for strategy testing and signal generation. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a KDB+/Q Software Engineer. 1+ years of experience in a relevant role such as Software Engineer or Quant Developer Proficiency in modern software development practices, including version control and agile More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Lead Backend Software Engineer/Developer (Java AWS) London/WFH to £115k Are you a hands-on Backend Software Engineer with team leadership skills? You could be progressing your career in a Lead Backend Software Engineer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top … employers. As a Lead Backend Software Engineer you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. … re collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders W hat's in it for you: As a Lead Backend Software Engineer you will earn a competitive package: Salary to £115k + Bonus Pension, Private Medical Care, Life Assurance Option to buy or sell holiday days Wellness benefits and gym More ❯
Job Title: Software Engineer TR Ref: CLDB/TR0013610 Location: Guildford, Surrey Salary: £40-51K + bonus 🕒 Flexible Hours 🌍 Purpose-Driven Culture💡 Cutting-Edge Projects Join a purpose-driven tech team where innovation leads to direct business impact. If you're an experienced C# .NET Developer looking to work on cutting-edge projects in a highly collaborative, agile … Always-on, stored procedures, DB design & maintenance) Strong experience with RESTful APIs, JSON and app integrations Git version control (or similar) HTML & CSS PowerBI reporting What You Bring Full software development lifecycle experience, including testing and documentation Strong debugging skills and a commitment to clean, maintainable code Effective communicator, with both technical and non-technical audiences Ability to work More ❯
london, south east england, united kingdom Hybrid / WFH Options
Client Server
Lead Software Engineer/Developer (Java Spring Boot AWS) London/WFH to £115k Are you a hands-on backend focussed Software Engineer with team leadership skills? You could be progressing your career in a Lead Software Engineer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs … top employers. As a Lead Software Engineer you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. … architectures You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders What's in it for you: As a Lead Software Engineer you will earn a competitive package: Salary to £115k + Bonus Pension, Private Medical Care, Life Assurance Option to buy or sell holiday days Wellness benefits and gym More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
Lead Software Engineer/Developer (Java Spring Boot AWS) London/WFH to £115k Are you a hands-on backend focussed Software Engineer with team leadership skills? You could be progressing your career in a Lead Software Engineer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs … top employers. As a Lead Software Engineer you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. … architectures You're collaborative and pragmatic with great communication skills, you're comfortable working with other teams and business stakeholders What's in it for you: As a Lead Software Engineer you will earn a competitive package: Salary to £115k + Bonus Pension, Private Medical Care, Life Assurance Option to buy or sell holiday days Wellness benefits and gym More ❯
london, south east england, united kingdom Hybrid / WFH Options
News UK
Senior Software Engineer – IOS Location: London Department Please Select Salary Range: Not Specified Advertising End Date: 28 Oct 2025 **Job Description** Role: Senior Software Engineer – Mobile – iOS Location: London Contract: Permanent The News UK Tech team is at the core of one of the world's leading media companies, bringing together talented individuals to tackle exciting challenges and … class digital experiences. Role:As a Senior Mobile Engineer, you will contribute to the development of best-in-class mobile apps, working closely with product owners, stakeholders, and your engineering peers to deliver innovative, high-quality solutions. You will report to a Principal Engineer, supporting the delivery of technical strategies and tactical implementations, while also mentoring other engineers to … maintain high standards of engineering excellence. Day to day you will: Develop new features and optimise existing ones for mobile applications, ensuring they meet business and user needs. Collaborate with product owners, stakeholders, and cross-functional teams to deliver quality mobile apps. Participate in technical discussions to ensure solutions are robust, scalable, and fit for purpose. Mentor and guide More ❯
a long-standing reputation for quality and innovation, this organisation designs and produces advanced laboratory instruments used worldwide. As part of their continued growth, they're seeking an Embedded Software Engineer to join their multidisciplinary engineering team. This role sits at the intersection of hardware innovation and intelligent control systems-where your code directly drives the tools that … enable modern scientific discovery. The Role As an Embedded Software Engineer, you'll be responsible for designing, developing, and testing firmware and embedded systems that power next-generation laboratory automation products. Working closely with mechanical, electronic, and software engineers, you'll ensure seamless integration between hardware and software across complex, high-precision instruments. This is an exciting … opportunity to apply your embedded software expertise in a technically challenging, science-driven environment where you'll see your work make a tangible impact. Key Responsibilities Design, develop, and maintain embedded software for laboratory automation systems Implement firmware to interface with sensors, actuators, pumps, temperature controllers, and communication peripherals Collaborate with cross-functional teams to achieve seamless hardware More ❯
london, south east england, united kingdom Hybrid / WFH Options
Aibidia
Aibidia is looking for a skilled Senior Software Engineer to work on the Research and Development team to create and expand Aibidia's range of solutions. We are revolutionising cross-border business management with our SaaS platform, and need top-tier talent to contribute to the success in transforming how the large multinational companies manage transfer pricing processes. You More ❯
Reading, England, United Kingdom Hybrid / WFH Options
Opus Recruitment Solutions
Java Engineer | Reading | HealthTech £40,000 – £85,000 + Bonus + Benefits Java, JavaScript, SQL, TDD, Spring Modern healthcare demands modern engineering, and this is your chance to be part of it. We’re hiring Java Engineers (Mid to Senior level) for a fast-growing HealthTech company that’s transforming how NHS hospitals deliver care. Their platform replaces outdated … scalable infrastructure now live across multiple UK trusts. Built by engineers who understand healthcare, the system delivers live patient data, safe prescribing, and intuitive UX at the bedside. Their engineering team has been instrumental in winning major contracts and earning awards like “Best Performing Company” in HealthTech. What you’ll be working on: Designing and developing their flagship product More ❯
finance with blockchain technology, offering a wide variety of financial services, including cross-border payments, institutional crypto liquidity, digital asset custody, and our enterprise-grade stablecoin RLUSD. As a Software Engineer at Ripple, you'll work on payment technologies, building scalable solutions that power the future of finance. Your primary responsibilities will be for a core part of the … role in increasing scale, efficiency, and observability, ensuring Ripple products interact seamlessly with global banks and payment providers in a consistent and trustworthy way. We are looking for a software engineer passionate about learning and understanding the way a complex fintech system works end-to-end and can help drive forward the development. A passion for making systems better … variety of challenges spanning crypto, trading, fintech, and payment solutions. Fully integrate into a large system and spot opportunities for improvements and best practices. Prototype new solutions for complex software problems and implement them for production cloud deployments WHAT YOU'LL BRING: Experience building highly scalable and performant enterprise software Working knowledge of Java and its ecosystem (i.e. More ❯
finance with blockchain technology, offering a wide variety of financial services, including cross-border payments, institutional crypto liquidity, digital asset custody, and our enterprise-grade stablecoin RLUSD. As a Software Engineer at Ripple, you'll work on payment technologies, building scalable solutions that power the future of finance. Your primary responsibilities will be for a core part of the … role in increasing scale, efficiency, and observability, ensuring Ripple products interact seamlessly with global banks and payment providers in a consistent and trustworthy way. We are looking for a software engineer passionate about learning and understanding the way a complex fintech system works end-to-end and can help drive forward the development. A passion for making systems better … variety of challenges spanning crypto, trading, fintech, and payment solutions. Fully integrate into a large system and spot opportunities for improvements and best practices. Prototype new solutions for complex software problems and implement them for production cloud deployments WHAT YOU'LL BRING: Experience building highly scalable and performant enterprise software Working knowledge of Java and its ecosystem (i.e. More ❯
is going through the gears, backed by world-class investors, and heading towards a big future. Theyve built a platform already trusted by global enterprise brands and now the engineering team is growing fast to take things to the next level. Youll join as a Senior Backend Engineer , taking ownership of complex Python/Django services that power enterprise … decarbonisation. Expect to design elegant APIs, tackle data-heavy challenges, and collaborate closely with sustainability experts and product teams. What makes this special? High-performance engineering team smart, passionate, and collaborative Big mission accelerating how the worlds largest businesses understand and reduce carbon footprints Cutting-edge scale-up energy late seed, gearing up for Series A, equity on offer More ❯
Senior AI Software Engineer - London (3 days a week) - up to £150K plus equity London based - 3 days a week Visa sponsorship is available Salary up to £150K with equity on top A venture-backed Fintech company is looking to hire a Senior AI Software Engineer to join their London based team. This is a hybrid role, based … all based in London. Half of the team are engineers or technology-related. The role reports to the CTO and will require offer the opportunity to: Help build the engineering team and processes from the ground up Build with the latest in LLMs, multi-agent systems, and define the tech stack Have significant input on the AI strategy and … optimising AI models through fine-tuning, distillation, or human-in-the-loop validation Preferably looking for Computer Science graduates with at least 1 year working in a core AI engineering role within an AI-first company and 3 years experience or more working as a Software Engineer, Backend Engineer, ML Engineer or Product Engineer. Senior AI SoftwareMore ❯
Senior AI Software Engineer - London (3 days a week) - up to £150K plus equity London based - 3 days a week Visa sponsorship is available Salary up to £150K with equity on top A venture-backed Fintech company is looking to hire a Senior AI Software Engineer to join their London based team. This is a hybrid role, based … all based in London. Half of the team are engineers or technology-related. The role reports to the CTO and will require offer the opportunity to: Help build the engineering team and processes from the ground up Build with the latest in LLMs, multi-agent systems, and define the tech stack Have significant input on the AI strategy and … optimising AI models through fine-tuning, distillation, or human-in-the-loop validation Preferably looking for Computer Science graduates with at least 1 year working in a core AI engineering role within an AI-first company and 3 years experience or more working as a Software Engineer, Backend Engineer, ML Engineer or Product Engineer. Senior AI SoftwareMore ❯