Senior Software Developer jobs in Portsmouth

Senior Software Engineer Scroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button. Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software...

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.

Senior Software Engineer Salary: Negotiable plus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. We are a small but rapidly growing consultancy, owned by four highly experienced and recognised practitioners in UK defence consultancy. We...

Head of Software ServicesSalary: from £90,000 plus benefits, (pension (7% contribution), 25 days holiday & life insurance)Location: Hybrid, PortsmouthWe are looking for a Head of Software Services to join our Digital business. We provide, through Sirius Digital, bespoke, robust and high-performance software to meet and exceed user requirements. We specialise in Software Engineering, Modelling &...

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.

You will steer the development of complex digital twins and autonomous systems, bridging the gap between mathematical theory and real-world engineering. Technical Authority: Lead the design of UE5 based simulations, Robotic systems, and Digital Twins. Team Leadership: Line-manage engineering staff and lead small, agile delivery teams.

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...

You will be responsible for generating new business while managing and expanding existing client relationships. The role suits a confident, customer-focused sales professional with experience selling complex B2B software solutions. Key Responsibilities: - Drive new business opportunities and achieve sales targets across software and associated services

Director of Software DevelopmentAn exciting new opportunity with a high-growth B2B SaaS business scaling a complex, customer-facing platform used at significant volume. With continued investment in engineering, tooling, and leadership, they're looking for a Director of Software Development to help evolve and scale their engineering organisation.This role suits someone who came up through software...

Software/SAAS Business Development Manager - £50,000+ OTE - Remote Dante provides training software to commercial training providers across the UK. We've grown our customer base from 25 to 120+ clients in four years and are expanding our sales team to support continued growth and international expansion planned for 2026. We're looking for a Business Development Executive to join our small team,...

Software Developer (Web & Internal Tools) Remote-first | UK-based up to £50,000 PA Dependent on experience We're supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and tooling. This is a hands on role in a small, trusted tech team, working across a customer facing web platform and the internal...

Software Engineer – PHP & Golang Fully Remote – Within UK PHP / Golang / JavaScript £60,000-£65,000 I've recently partnered with a leading Prop-Tech business in London who are looking to add a Software Engineer to their team who specialises in PHP & Golang! The company have seen rapid success over the past 10 years and have built an advanced platform used by their expanding portfolio of...

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.

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...

About the Job This position is for a Senior Software Engineer with a minimum of 5 years of experience in backend development and a passion for building robust, scalable systems. We are looking for an engineer with a strong background in the C# .NET ecosystem, and a preference for candidates with significant experience on AWS. Are you ready for a challenge? We're looking for a dynamic software...

Senior Software Engineer Scroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button.Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insuranceWe are looking for senior software engineers with a range of levels of experience including designing and delivering software applications....

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.

A leading software solutions company in the UK seeks a Head of Software Services to manage software project P & L, inspire teams, and develop stakeholder partnerships. This hybrid role involves client relationship management and overseeing project delivery to ensure excellence in software services. Experience in software engineering and proven leadership skills are crucial for success in this...

Director of Software DevelopmentAn exciting new opportunity with a high-growth B2 B Saa S business scaling a complex, customer-facing platform used at significant volume. With continued investment in engineering, tooling, and leadership, they're looking for a Director of Software Development to help evolve and scale their engineering organisation.This role suits someone who came up through...

A leading technology company in the UK is seeking a Director of Software Development to guide their engineering organisation towards growth. This role requires a blend of strong technical knowledge and leadership, managing a diverse team of Software Development Managers and engineers. The position emphasizes modern Dev Ops practices and the ability to influence technology strategy. The company...