1 to 25 of 30 Software Engineer Jobs in Southampton

skilled 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 dynamic and secure environment. Due to the sensitive nature of the projects, security clearance will … required. The 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 Skills required: - Experience in C/C++ programming ...

C++ Software Engineer - Fully Remote - Up To £200k We're currently working with a global leader in software development, offering a fully remote position for a Senior Software Engineer specializing in C++. They are experiencing an exciting period of growth and are looking to bring … working independently Strong communicator If this does look like something that could be of interest please apply as interviews are being scheduled! C++ Software Engineer - Fully Remote - Up To £200k ...

Software Engineer - Fleet, Hampshire Are you ready to get stuck into real innovation, push boundaries, and work with tech that's transforming how we understand the world around us? Whether you're a recent graduate eager to make your mark or a seasoned engineer looking for your … next challenge, this role gives you the space, ownership, and impact you're looking for. What you'll do as the AI Software Engineer - Fleet, Hampshire Preparing, cleaning, and augmenting datasets for high-quality model training Training, fine-tuning, and evaluating AI models including agentic workflows and feedback ...

Join an innovative wireless communications company – Southampton, Hybrid Working Model This growing engineering team are developing high-performance software that powers next-generation wireless signal processing. They are now looking for a Senior Software Engineer to support the continued design, optimisation and delivery of real-time software across x86 and ARM platforms. You will contribute to key technical decisions, mentor junior engineers and help drive high-quality software development across the product lifecycle. For this Senior Software Engineer position, we are looking for someone with: Strong commercial experience programming in C and C++ ...

Senior Software Engineer – C/C++ ARCA is currently looking for a Senior Software Engineer to join on a short-term contract to help support an automotive/motorsport engineering programme. This role suits someone comfortable working close to real-time systems, networking and performance-critical … software, typically found in vehicle platforms, simulation, data or control environments. Key Responsibilities Develop and maintain high-performance C/C++ software Work on concurrent, parallel and asynchronous systems Contribute to distributed, real-time architectures (pub/sub models, time-synchronised systems) Key Skills & Experience Strong C/ ...

Software Engineers Real-Time Wireless Systems (Senior & Principal Levels) Permanent | £75k£100k + Bonus + Equity | Hybrid (Southampton) If your idea of good engineering is squeezing every last cycle out of a CPU, building software that talks to hardware at speed, and solving real wireless signal-processing problems … youll probably get on well here. This team designs and builds high-performance software for wireless communication systems 5G, satellite comms, and advanced baseband processing. The real, high-throughput, low-latency kind. Theyre hiring Senior Software Engineers and Principal Software Engineers , depending on depth of experience ...

Senior Software Engineer Location: Southampton, UK (Hybrid – 3 days per week on-site) There are easier ways to make a living. But if you’re the kind of software engineer who prefers hard technical problems over incremental feature work, this might be worth your time. … joining a small, high-calibre team developing software that underpins next-generation satellite and space communications systems. This is performance-critical, real-time software, where microseconds matter and design decisions have long-term consequences. What you’ll be working on Designing and developing high-performance C/C++ ...

Embedded Software Engineer (Contract/Flexible) – Outside IR35 We are a small but established engineering firm looking to engage an experienced Embedded Software Engineer on a flexible, non-committed, Outside IR35 basis. Our existing embedded software contact is no longer available … seeking a trusted, go-to embedded engineer to support our products and future developments on an ongoing basis. This role is ideal for an experienced contractor or freelancer who values autonomy, flexibility, and long-term collaboration without fixed hours or guaranteed workload. The Role Act as the primary embedded ...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands … performance systems at global scale. Career progression in a fast-growing international technology business. Key skills required: 10+ years' experience in enterprise architecture and software engineering. Proven expertise in .NET with strong SaaS and API platform experience. Hands-on track record designing highly scalable, high-performance systems. Strong leadership ...

Join a pioneering organisation in the space sector – Hampshire, Hybrid Working Model This organisation is driving forward innovation in space systems and software, and they are looking for an experienced C/C++ Software Engineer to take ownership of code quality and coverage tools. You'll play … role in strengthening build processes, improving test coverage, and ensuring robust software development practices across complex projects. As part of a collaborative engineering team, you'll integrate coverage tools (GCOV/LCOV) into the build, adapt existing code bases, and work closely with developers and team leads to drive ...

DevOps Software Engineer £600 - £680 a day (Inside IR35) Location : Southampton Hybrid - 3 days a week on site Duration: 6 months Clearance: SC Clearance required You will join a consultancy delivering digital transformation to the MoD. Areas of Responsibility: Writing clean, secure code following a test-driven approach ...

Senior/Principal Software Engineer .NET £85,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built … quality, resilience, and scale - and they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross ...

accelerate their own digital transformation. You can learn more about Cirium www.cirium.com About the Team : You will be joining a collaborative, curious, team of Software Engineers at all different levels. By joining us you will have the opportunity to share ownership in solving this problem end to end. About … role: As a Software Engineer II you will performs moderate research, design, and software development assignments within a specific software functional area or product line. At RELX, we are committed to advancing gender diversity within the technology sector and supporting greater representation of women in tech. ...

Software Engineer - SC Cleared £600 - £680 a day (Inside IR35) Location : Southampton Hybrid - 3 days a week on site Duration: 6 months Clearance: SC Clearance required You will join a consultancy delivering digital transformation to the MoD. Areas of Responsibility: Writing clean, secure code following a test-driven ...

fast-growing AI-driven SaaS company is hiring three Senior Software Engineers to join its engineering team. These are hands-on roles with a strong backend and architectural focus, ideal for engineers who enjoy working in scale up or startup environments and want to build high-quality, cloud-native … software that powers real-world automation. You'll be part of cross-functional squads delivering modern, serverless, AI-enabled applications used in highly regulated industries. The company has a strong engineering culture, embraces AI-assisted development, and offers autonomy, impact, and the chance to help shape technical direction. Role ...

innovative technology company working at the forefront of wireless and intelligent systems is seeking an AI Software Engineer to join its growing AI software team. The organisation develops advanced solutions used to test, analyse, and optimise next-generation communication technologies. This role offers the opportunity to work … Exposure to cutting-edge AI, wireless, and data-driven technologies Collaborative, inclusive, and forward-thinking engineering culture This is an excellent opportunity for an engineer looking to work on applied AI systems with real industrial impact. If you're interested, then apply ...

looking for a senior Front End Software Engineer who can be the technical go-to person in their area, offering guidance, mentorship, and hands-on expertise. You will be a proven senior who still loves to code, enjoys taking ownership of front-end decisions, and wants to play … practices and setting high technical standards. Working closely with product managers, QA, designers, and other engineers, taking on and integrating feedback. Delivering fully tested software iteratively and continuously. Creating beautiful, usable, user friendly solutions. Scoping projects, identifying opportunities, and delivering effective solutions. Prototyping new ideas and pushing boundaries ...

client, a leader of travel experience category we are searching for a Frontend Engineer who has from 2 to 5 years of experience working as a frontend engineer. It's a flexible hybrid role (2x per month) from Client's office (in London or Oxford.) The employment contract will … signed directly with the client. We provide visa sponsorship for candidates who are currently based in the UK. We're looking for a Software Engineer II - Frontend Focus to join our fast-growing team. This role is open to candidates based within a commutable distance (generally within ...

looking for an experienced Senior Python Software Engineer to take ownership of an established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This ...

love untangling hard problems, improving legacy systems, and shipping clean, tested code, you'll fit right in. Your role as a Senior PHP Software Engineer at True9: Lead the back-end - write clean, maintainable, and scalable code using PHP and frameworks like Symfony across a variety of projects. ...

supporting an ongoing aerospace programme with one of CMC's long-standing clients, and we're now looking for an experienced Embedded Software Engineer with DO-178 experience to join their team. The project is well established and currently approaching Critical Design Review, with additional support required … delivery momentum. This role will support the development of an aircraft console system, with a focus on DO-178C compliance activities, including tool qualification, software reviews, and supporting documentation. There may also be the opportunity to contribute to module specifications and embedded C development, depending on experience. This ...

Principal Software Architect (FinTech SaaS) – UK Remote We are representing a scaling B2B FinTech that provides core decisioning infrastructure for the global financial services sector. Their enterprise SaaS technology enables major lenders to modernise their credit assessment processes, allowing for more efficient deployment of capital to the commercial sector. … layers into traditional banking workflows, they are significantly improving how credit is optimised and distributed to businesses. We are looking for a heavyweight Principal Engineer to serve as the ultimate technical authority and strategic advisor across multiple product squads. Location: Remote-friendly (UK). The team values flexibility, with ...

Senior Java Engineer – Actuarial Data Squad – Outside IR35 - Contract We're looking for a Senior Java Engineer to join a high-profile project focused on backend systems that automate complex financial and actuarial processes. This is a hands-on role delivering backend solutions under tight deadlines ...

Title: Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy … with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This is a role for engineers who: Enjoy building real software that makes a difference Are passionate about AI and its practical application Thrive at the intersection of technical leadership and client engagement What ...

Senior Rust Engineer (High-Frequency Trading) Contract Length: 6 months (with potential extension) Location: London (4 days per week onsite) Day Rate: Up to £800 (Outside IR35) We're looking for an experienced Senior Rust Engineer to take ownership of a greenfield high-frequency trading (HFT) platform, leading … development Ensure seamless integration with UI and supporting engineering teams Contribute to rapid iteration, debugging, and refinement through close in-office collaboration Senior Rust Engineer (High-Frequency Trading) Contract Length: 6 months (with potential extension) Location: London (4 days per week onsite) Day Rate: Up to £800 (Outside IR35 ...