software design engineer jobs in Portsmouth

You will work closely with subject matter experts and senior stakeholders on high-impact programmes spanning modelling and simulation, autonomy, geospatial systems, synthetic environments and digital twins.

You will remain deeply technical while setting direction, leading teams and acting as the technical authority across projects.

You will be designing solutions for complex challenges that will meet and exceed user requirements. Responsibilities will include: Designing, developing and delivering software solutions using a large range of techniques, including Wargames, Modelling and Simulation, Robotic and Autonomous systems, Digital Twins and Synthetic Environments.

Our client is a global leader in ship navigation systems and advanced maritime solutions, delivering tailored technologies for commercial vessels, mega yachts, refit projects, naval surface combatants, small combatants, and submarines. Our client is seeking Software Engineers at various levels of experience to join their small UK-based software development team. This is an excellent opportunity...

Software Engineer (Java) SC Clearance Required Certain Advantage are hiring for a Software Engineer based in Portsmouth. This role is on an initial 12-month contract and is required to be onsite 3 days a week. Your responsibilities: - Contribute across the full software development lifecycle, including design, development, testing, and deployment. - Design software solutions using UML/SysML...

Software Engineering ManagerWorthing, West Sussex – HybridFull time, PermanentUpto £76,000 per year plus various company benefitsWe are seeking a highly skilled and experienced Software Engineering Manager to lead our dynamic team of 20 Software Engineers!The 20 Engineers? Externally, they are a team that pride themselves on being flexible whilst managing the workload without compromising on...

Job Title: Principal Design Engineer Mechanical Location: Portsmouth Naval Base. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role Salary: Up to £54, 000 depending on skills and experience + bonus What you’ll be doing: - Participating fully in Design Reviews either presenting information to the review...

Software Developer (Java) - SC Clearance Contract Length: 12 Months (Extension Possible) Location: Portsmouth (Hybrid - 3 days per week onsite) About the Role & Organisation: This organisation operates at the forefront of advanced engineering and technology, delivering complex, mission-critical systems within highly regulated environments. It offers a collaborative, quality-driven culture where...

You will bring proven experience of leading major software engineering programmes, ideally within the defence sector.

You should demonstrate strong commercial judgement, exceptional relationship-building skills, and the ability to inspire and motivate senior stakeholders and diverse teams alike.

Are you a technically minded estimator who loves turning complex ideas into real-world solutions? Were working with a forward-thinking industry leader known for innovation and quality, whos looking for a Design Estimator to join their growing team. This is a key role where youll help bridge the gap between client vision and technical delivery transforming project concepts into accurate designs...

You will be responsible for ensuring designs comply with IT security standards and the company's architectural principles. The ideal candidate will possess strong solutions design experience, excellent communication skills, and the ability to navigate complex requirements. This role offers a competitive salary and a hybrid working model.

You will work primarily in C++ using modern tools and open source frameworks, contributing to innovative software for advanced navigation and important systems. Key Responsibilities:Capture and evaluate technical requirements, estimating delivery timescales and milestones. Design, implement, and maintain software across back end, communication infrastructure, and client-server applications.

Our client is a rapidly growing business designing some of the most innovative and interesting applications for the marine industry. If you are a meticulous individual with a passion for working on cutting edge projects, this could be ideal for you. Senior Software Engineer Marine Defence applicationsPortsmouthPermanent Role Overview We are looking for a talented software engineer to help shape...

Job Title: Software Development Engineer Salary: Up to £75k Job Type: Full Time, Permanent Location: Fareham, Hampshire (Hybrid working available) About the Opportunity: A UK-based technology organisation in Fareham is seeking a Software Development Engineer to support the development of software used within government, defence and law-enforcement environments. This role focuses on...

You will be designing solutions for complex challenges that will meet and exceed user requirements. Responsibilities will include: * Designing, developing and delivering software solutions using a large range of techniques, including Wargames, Modelling and Simulation, Robotic and Autonomous systems, Digital Twins and Synthetic Environments.

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

Job Description Principal Software Engineer Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for principal software engineers with diverse experience. We are a small but rapidly growing consultancy, owned highly experienced and recognised practitioners in UK defence consultancy. We are looking for candidates with a mix of technical...

You will work alongside experienced engineers, data scientists and subject matter experts on programmes covering modelling and simulation, autonomous systems, synthetic environments and digital twins.

You will stay close to the code while contributing ideas, shaping solutions and engaging directly with customers.

You will be designing solutions for complex challenges that will meet and exceed user requirements. Responsibilities will include: * Designing, developing and delivering software solutions using a large range of techniques, including Wargames, Modelling and Simulation, Robotic and Autonomous systems, Digital Twins and Synthetic Environments.