Freelance Software Engineer jobs in Hampshire

Senior Software Engineer Portsmouth | Hybrid, 3 days onsite £50,000-£75,000 plus bonus and benefits This Senior Software Engineer role is ideal for a hands-on engineer with experience in C++ and Unreal Engine, working on complex, performance-critical software across modelling and simulation, autonomy and geospatial domains. The position focuses on building robust, scalable systems while offering...

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 expertise and...

C++ Software Engineer Portsdown West (PO17) Full-time Onsite - Salary £50,000 - £65,000 - 25 days annual leave inclusive of up to 3 days Christmas shut-down - Buy or sell up to 5 days annual leave - Annual Wellbeing allowance - Two pension schemes to choose from - Private Medical Insurance + discounts for additional family members - Life Assurance scheme up to 4 x salary - Share Save scheme -...

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...

Job Description The Role This is a key technical role responsible for supporting software used within production, resolving issues, gathering insights, and contributing directly to product quality. You'll work closely with engineering teams across the UK and New Zealand, combining technical support, testing, and lightweight software development. This is a fully onsite position at their Fareham...

We're looking for an experienced Embedded Software Engineer to join a high-performing product design team developing complex embedded control and sensing systems. Ensure all your application information is up to date and in order before applying for this opportunity. This role offers the opportunity to take ownership of full project lifecycles from requirements capture and concept development...

Cyber Software Vulnerability Engineer Package - £45,000 - £65,000 (depending in experience level) Benefits - DV Bonus plus excellent benefits Clearance - Clearable to eDV level, SC clearance required to start. Location - Hampshire, Surrey or London - hybrid working Join a trusted leader in National Security technology solutions. Do you enjoy solving technical cyber problems and identifying...

You will collaborate with multidisciplinary teams to bring innovative electromechanical products to life and support existing ranges with upgrades and new features.

You will be able to demonstrate extensive experience in control systems, safety-critical systems (EN61508/SIL2 or equivalent), and programming in Python.

Senior Embedded Software Engineer Location: Basingstoke (On-site 2 days per week) Salary Up to £75,000 (depending on experience) We're looking for a Senior Embedded Software Engineer to join a growing, multi-disciplinary engineering team in Basingstoke. You'll be working alongside Software, Electronic, and Mechanical Engineers, contributing to the design and development of robust, high-quality...

Key Responsibilities - Design, implement, and maintain software for nuclear systems, ensuring compliance with safety and regulatory standards. - Develop software for reactor control, monitoring systems, data acquisition, simulation, and predictive analytics. - Collaborate with multidisciplinary teams including nuclear engineers, electrical engineers, and safety specialists. - Apply best...

You will be working with a high-calibre team of young, talented professionals who share a like-minded mindset, delivering top-tier implementation and technical services to clients.

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they’re building AI...

Job Description Senior Software Engineer Location - Southampton, Hampshire Salary - Competitive Security - Due to the nature of this position, you must be eligible to achieve a minimum of SC clearance, be a British Citizen and have resided in the UK for the last 5 years. Overview: Copello are working with a leading defence business who are looking for a skilled Senior Software Engineer to...

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...

Principal Software Engineer Portsmouth | Hybrid, 3 days onsite £75,000-£85,000 plus bonus and benefits This Principal Software Engineer role is designed for a hands-on technical leader with strong C++ and Unreal Engine expertise, working at the forefront of complex, performance-critical software delivery. The role combines advanced engineering with genuine technical authority, shaping how...

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they’re building AI...

Job Description Our client, a specialist in the Defence & Security sector, is currently seeking a GUI Software Engineer to join their team in Hampshire on a contract basis. Key Responsibilities: - Designing and implementing efficient real-time systems - Understanding and applying new and emerging technologies - Developing new features for the Electronic Warfare suite of software - Contributing...

C++ Software Engineer Portsdown West (PO17) Full-time Onsite Salary £50,000 Applying for this role is straight forward Scroll down and click on Apply to be considered for this position. - £65,000 25 days annual leave inclusive of up to 3 days Christmas shut-down Buy or sell up to 5 days annual leave Annual Wellbeing allowance Two pension schemes to choose from Private Medical Insurance discounts...

Job Description Our client, a specialist in the Defence & Security sector, is currently seeking a GUI Software Engineer to join their team in Hampshire on a contract basis. Key Responsibilities: - Designing and implementing efficient real-time systems - Understanding and applying new and emerging technologies - Developing new features for the Electronic Warfare suite of software - Contributing...

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...