28 jobs found in Portsmouth

World Class Defence Organisation is currently looking to recruit a Embedded Software Engineer subcontractor on an initial 12 month contract.     Rate: £65.00 per hour Location: Portsmouth Hybrid / Remote working: 2 days per week remote working Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)                                                                                                                                           Embedded Software Engineer Job Description: The role of Embedded Software Engineer is required due to increased demand for the work of our Advanced Developments Group (ADG). The ADG are a small team of highly innovative, enthusiastic engineers providing cutting edge technology solutions to our key customers. Responsibilities: Use your skills and knowledge to prototype innovative wireless solutions You will be primarily developing using C/C++ on embedded platforms Development of embedded...

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 and contribute to technical architecture within a microservices environment. Develop high-quality Java applications using Spring Boot, Spring Framework and related technologies. Implement and maintain RESTful web services over HTTPS within distributed systems. Write and maintain automated tests, ensuring quality and reliability are built into the solution from the outset. Participate in Agile ceremonies including sprint planning, estimation, reviews and retrospectives. Collaborate closely with team members and wider stakeholders to design, implement and test new product features. Contribute...

Embedded Software Engineer 6 month contract Based in Portsmouth Offering £50ph Inside IR35 Do you have experience programming Embedded Systems in C/C++? Do you have experience with Bare-Metal and Embedded Linux environments? Do you want to work with an industry-leading company? If the answer is yes to these, then this could be the role for you! As the Embedded Software Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Prototype innovative wireless solutions Developing using C/C++ on embedded platforms Development of embedded software/firmware prototypes in an agile environment Further development of proven prototypes to a deployment standard Development of software in a real-time embedded environment using Linux (e.g....

Embedded Software Engineer - SC Cleared C / C++ Embedded Linux / Bare Metal DMA, Interrupts DSP Software Defined radio Rate: £50/hr Duration: Initially 6 months Location: Portsmouth Working pattern: Hybrid, 3 days a week on site Clearance: SC Clearance required You will join a global defence technology company, in a team providing cutting edge technology solutions to our key customers. The role: Use your skills and knowledge to prototype innovative wireless solutions You will be primarily developing using C/C++ on embedded platforms Development of embedded software/firmware prototypes in an agile environment Further development of proven prototypes to a deployment standard Development of software in a real-time embedded environment using Linux. (e.g. Microblaze or RISC-V using C/C++) Experience of working with and configuring embedded Linux systems with tools such as Buildroot and Yocto Experience of working with Uboot, Kernel config and device trees Building and...

Job Title: SC Cleared Network Engineer - IT Infrastructure Support Location: Portsmouth Duration: 6 months Rate: £660.00 per day Must be willing and eligible to go through the SC Clearance process Our client, a reputable organisation, is hiring for a skilled SC Cleared Network Engineer to join their dynamic team. This is an exciting opportunity to provide technical leadership and support across critical IT projects and programmes, working closely with project managers and technical leads to deliver innovative solutions. What you'll be doing: Lead the delivery of complex technical tasks, ensuring they align with project goals and timelines Support the maintenance and enhancement of the Strike Net Experimentation Environment alongside a Server Engineer Provide Level 3 support for all Strike Net Rigs, ensuring secure and reliable operations Contribute to system design, implementation, integration, testing, and evaluation Develop user guides, work instructions, technical...

Join a world-renowned aerospace and defence organisation as a Network Infrastructure Engineer in Cowes on a hybrid basis Due to a drive for greater success, this advanced manufacturing business is currently searching for Tooling Engineer to add to their talented, hardworking team in Gloucester on an initial 3-6 months contract. Striving for innovation and creativity you can ensure no two days will be the same. The rate per hour: £81.05 per hour inside IR35 / umbrella * The role: A Network Engineering role, working within RADAR projects, focussed on Information Technology (IT) infrastructure design and implementation. * Applies a depth and breadth of expertise to IT infrastructure engineering problems, supporting key project design decisions made by the Systems Design Authority. * Designs and implements IT infrastructure solutions. * Provides technical guidance to others relating to IT infrastructure. * Highly skilled working on secret networks. Knowledge and Skills: * A...

Lead Software Engineer Rate: £600 a day IR 35 Determination: Outside IR35 Location: Southampton Working Pattern: 20% onsite Clearance: SC Clearance required Overview: Technical Leadership, Operational and People Management, Technical direction of complex projects A global defence technology consultancy are looking for an experienced Lead Software Engineer to provide hands‑on leadership across a high‑priority software delivery programme. This is a senior contractor role requiring a self‑starter who can quickly understand a complex problem domain, translate requirements into actionable deliverables, and drive engineering teams to successful outcomes. You will act as the technical and delivery focal point for multiple workstreams, ensuring work is sequenced, risks are managed, progress is unblocked, and the programme maintains momentum. This role blends technical leadership, delivery ownership, and stakeholder management, and is ideal for someone with a background in leading...

Senior Software Engineer Rate: £450 a day IR 35 Determination: Outside IR35 Location: Southampton Working Pattern: 20% onsite Clearance: SC Clearance required Stack overview: Python (including pytest), git, Docker and AWS with prior experience building full stack Flask You will join a global defence technology consultancy and take ownership of specific software work packages, including low level planning, delivery, and reporting, with ability to work independently and autonomously. You will have strong understanding of microservice software architecture, and design, implement, document and test software modules and components. What you'll bring Strong technical ability with proven experience delivering software components and modules. Ability to work confidently, strategically and autonomously Ability to balance hands-on coding with document writing and planning session participation Your skills and experience: Proficiency in Python (including pytest), git, Docker and...

Job Title: Full-Stack Developer Location: Bournemouth (x 5 days in office) Salary/Rate: £410 a day (Inside IR35) Start Date: April 2026 Job Type: Contract - 6 months Job Overview: We are seeking an experienced Senior Java / Python Full Stack Developer to design, develop, and maintain scalable enterprise applications at our client who is a leading global investment bank. The successful candidate will play a key role in delivering high-quality solutions using Java, Python, Spring Boot, AWS, and modern frontend technologies. You will collaborate with cross-functional teams to build robust, high-performance applications while ensuring code quality, scalability, and security across the development lifecycle. Key Responsibilities - Develop high-quality software design and architecture using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, Python and MySQL. - Collaborate with cross-functional teams to define, design, and ship new features. - Some hands on knowledge on React...

MS Dynamics 365 Developer Certain Advantage is hiring for an MS Dynamics 365 Developer based in the Farnborough area. This role is on a contract basis and is hybrid-based. The Company We’re working with a Manufacturing business that operates in the Aerospace sector. They design, manufacture and deliver industry-leading commercial aircraft, and a separate Space and Defence division. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for an MS Dynamics 365 Developer—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be working in a small, experienced, and collaborative team, and be responsible for: Design and develop customisations, plugins, workflows, and integrations within the D365 environment. Customise and extend D365 modules using X++, C#, JavaScript, Power Automate, and Power Apps. Develop and maintain integrations between D365 and other enterprise...

Senior Manager, Software Engineering Location: Farnborough (On‑Site) Industry: Aerospace / High‑Altitude Platforms / Safety‑Critical Systems Contract: 6 Month inside IR35 Rate: £52ph Lead the software engineering function behind next‑generation, high‑altitude aerospace technology. I'm recruiting on behalf of an innovative aerospace organisation developing world‑leading, solar‑powered, high‑altitude platforms designed for ultra‑long‑endurance flight. Operating above 60,000 ft, these platforms enable mission‑critical applications including direct‑to‑device connectivity, high‑resolution Earth observation, environmental monitoring and global‑scale humanitarian operations. This is a rare opportunity to step into a high‑impact leadership position within a rapidly growing and genuinely pioneering engineering environment. The Role: Senior Manager, Software Engineering As the Senior Manager for Software Engineering, you will lead an expanding team responsible for the full software...

Microsoft Dynamics Developer 6 month contract Based in Farnborough Offering £38.25ph Inside IR35 Do you have experience in D365 development? Do you have experience with Power Platform? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Microsoft Dynamics Developer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Design and develop customisations, plugins, workflows, and integrations within the D365 environment Customise and extend D365 modules using X++, C#, JavaScript, Power Automate, and Power Apps Collaborate with functional teams to translate business requirements into technical specifications Develop and maintain integrations between D365 and...

Job Title: SC Cleared Programme Manager Location: Farnborough Duration: 3 months with possible 3 month additional extension Rate: Up to £849 per day via an approved umbrella company Must be willing and eligible to go through the SC Clearance process Our Client, a leading organisation in the defence and technology sector, is hiring for a reputable client to lead complex programmes within their IT division. What you'll be doing: Fully accountable for delivering programme vision, objectives, and benefits on time, within scope, and budget. Lead and motivate Project Managers, ensuring safe working practices and effective collaboration across teams. Develop and oversee integrated plans, resource capacity, and dependency management to achieve desired outcomes. Manage budgets, costs, and proactively identify opportunities for savings while controlling risks and issues at programme level. Conduct performance reviews, challenge project teams, and ensure governance and assurance...

Software Engineering Manager Certain Advantage is hiring for a Software Engineering Manager based in the Farnborough area. This role is on a contract basis and is site-based. The Company We’re working with a Manufacturing business that operates in the Aerospace sector. They design, manufacture and deliver industry-leading commercial aircraft, and a separate Space and Defence division. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Software Engineering Manager—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be working in a small, experienced, and collaborative team, and be responsible for: Lead the day-to-day activities of the software team Plan, design, develop, verify, and integrate the software for the high-altitude, long-endurance Zephyr aircraft. Acting as the technical authority for software, ensuring compliance with safety, performance,...

SAP Security & Identity Consultant (S/4HANA Public Cloud) * Guildford (Hybrid) * Contract, Inside IR35 * Must be Eligible to go through SC Cllearance You’ll be joining a live S/4HANA Public Cloud programme where security isn’t an afterthought. They need someone who can take ownership of roles, authorisations, and identity management, and make it work properly in a real environment. This is hands-on delivery. You’ll be designing how access works across the business, not just maintaining what’s already there. What you’ll be doing You’ll act as the go-to for SAP Security across the platform, working closely with both technical teams and business stakeholders. * Designing and implementing SAP roles and authorisation models * Running SoD analysis and shaping practical controls * Building and improving role provisioning and access workflows * Working with stakeholders to translate real processes into security design * Supporting and improving a live S/4HANA...

Java Developer (x2) - SC Cleared Guildford or Newcastle - 2/3 days per week onsite £525 per day (Inside IR35) Active SC Clearance Required Join a collaborative Agile Scrum team as a Java Developer, building innovative geospatial solutions using modern cloud technologies. You'll work across the full software development lifecycle, designing and developing scalable cloud-based applications, writing clean, maintainable code, and ensuring quality through testing and best practices. Alongside contributing to code reviews and reusable solutions, you'll collaborate closely with your team in Agile ceremonies to deliver impactful, high-quality software. What We're Looking For Strong experience with Java Experience in cloud services development Solid understanding of unit testing frameworks and practices DevSecOps awareness (e.g. Tekton, ArgoCD, SonarQube) (desirable) Experience with Kubernetes or Red Hat OpenShift (desirable) Familiarity with the Quarkus framework (desirable)...

Software Engineer Certain Advantage is hiring for a Software Engineer based in the Guildford or Newcastle area. This role is on a contract basis and is hybrid-based. The Company We’re working with a Manufacturing business that operates in the Aerospace sector. They design, manufacture and deliver industry-leading commercial aircraft, and a separate Space and Defence division. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Software Engineer —someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be working in a small, experienced, and collaborative team, and be responsible for: High-quality, readable, scalable and easily maintained code, using Java. Contribution to quality assurance by writing unit and automated tests. Design and code reviews Sprint planning, reviews, and daily stand-ups in a true Agile environmentThe Individual We’re looking for...

Java Developer (x2) - SC Cleared Guildford or Newcastle - 2/3 days per week onsite £525 per day (Inside IR35) Active SC Clearance Required Join a collaborative Agile Scrum team as a Java Developer, building innovative geospatial solutions using modern cloud technologies. You'll work across the full software development lifecycle, designing and developing scalable cloud-based applications, writing clean, maintainable code, and ensuring quality through testing and best practices. Alongside contributing to code reviews and reusable solutions, you'll collaborate closely with your team in Agile ceremonies to deliver impactful, high-quality software. What We're Looking For Strong experience with Java Experience in cloud services development Solid understanding of unit testing frameworks and practices DevSecOps awareness (e.g. Tekton, ArgoCD, SonarQube) (desirable) Experience with Kubernetes or Red Hat OpenShift (desirable) Familiarity with the Quarkus framework (desirable)...

Java Developer - Cloud Services + 12 month initial contract + Hybrid working out of Guildford + SC Cleared role + £70 p/h - Inside IR35 Key Skills: + Java Developer + Cloud Services + RedHat/Kubernetes Role Overview - The Software Engineer will join our collaborative, forward-thinking Agile Scrum team, working on innovative Geospatial software, using the latest cloud-based technologies. The engineer will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. The role is based at our Newcastle office. Flexible working arrangements are in place for the team. The successful candidate is expected to be in the office 3 days a week, with the opportunity to work 2 days from home. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies, meeting requirements and coding standards. Develop...

This isn't a "keep the lights on" IT role. This is about rewiring how a major organisation thinks, operates, and delivers through digital. We're partnering with a large, complex public sector organisation undergoing significant transformation - and they're looking for a senior interim leader to step in and take ownership of their digital, data and technology agenda at scale. The Opportunity You'll sit at the top table, working directly with the executive team to: Set and drive a bold, future-facing digital & data strategy Lead major transformation programmes across multiple services and partners Embed AI, automation and data-led decision making into the core of operations Oversee significant investment portfolios (£20m+) and ensure real ROI Shape cross-organisational collaboration in a complex stakeholder environment This is system-level leadership - not just internal change, but influencing across a wider ecosystem. What They Need This role is for someone who has:...