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Inside IR35 Contractor Southampton

32 jobs found in Southampton

CL
Feb 25, 2026  
Electronics Engineer
Principal Electronics Engineer Southampton or Bristol 6-month contract Paying up to £65ph inside IR35 Our client, a leader in the Defence & Security sector, is currently seeking a Principal Electronics Engineer to join their team on a contract basis. This role offers an exciting opportunity to develop and grow your skills within a thriving organisation engaged in cutting-edge technologies and projects. The Opportunity: This position is based in either Southampton or Bristol, with a primary focus on the design and development of digital processing electronics and support to RF and analogue power circuitry for complex laboratory and aircraft sensor systems. The role encompasses working across various stages of the product lifecycle, from initial concept development through to early life production and field support. You will be part of the Airborne Communications product development group within the Integrated Sensing & Protection division, interacting with partner...
IR35 Status:
Inside IR35

CV-Library Southampton, Hampshire Contractor
CL
Feb 22, 2026  
Admin Supervisor
Admin Supervisor Southampton £18.00 - £25.00per hour (Inside IR35 / Umbrella Company) 6 Month Contract (+ Extension or T2P) Monday - Friday / Days (37.5hours per week) Are you a Admin Supervisor with experience managing a team of Administrators looking for your next immediately available, days based, long term contract role with the view to go permanent? My client is one of the UK's leading companies that specialise in Servicing, Repair & Maintenance work of Ambulances & Blue Light Vehicles. Based in Southampton, this organisation works to ensure that all emergency vehicles in the Hampshire & surrounding counties are operating at the highest level. In this role you will be managing a team of 3 - 5 Fleet Administrators where you will be supporting the Workshop to ensure that all paperwork is completed and filed correctly. This is a brilliant role for an Admin Supervisor who is confident in managing a team of Administrators and ideally from an Automotive...
IR35 Status:
Inside IR35

CV-Library Southampton, Hampshire Contractor
CL
Feb 21, 2026  
Automotive Quality Assurance Officer
Automotive Quality Assurance Officer Southampton (1 Day Office, 1 Day WFH, 3 Days Travelling) £25.00 - £30.00per hour (Inside IR35 / Umbrella Company) 3 - 6 Month Contract (+ Extension or T2P) Monday - Friday / Days (37.5hours per week) Are you a Quality Assurance Officer from an Automotive background with a C1 Driving Licence, looking for your next immediately available, days based, long term contract role with the view to go permanent? My client is one of the UK's leading companies that specialise in Servicing, Repair & Maintenance work of Ambulances & Blue Light Vehicles. Based in Southampton, this organisation works to ensure that all emergency vehicles in the Hampshire & surrounding counties are operating at the highest level. In this role you will be working as a Quality Assurance Officer to ensure my clients fleet operations comply with all statutory requirements, regulations, and internal policies while leading quality control inspections and engineering...
IR35 Status:
Inside IR35

CV-Library Southampton, Hampshire Contractor
CL
Feb 20, 2026  
Business Intelligence Analyst
Our client, a prominent organisation in the Defence & Security sector, is looking for a skilled Business Intelligence Analyst to join their team on a contract basis in Romsey. This opportunity is within a dynamic and crucial industry, offering the chance to apply your IT and business analysis skills in a significant way. Key Responsibilities: Supporting transformation and operational excellence projects Improving supply chain processes and efficiency Interacting with teams to extract and analyse critical information Building and maintaining Excel spreadsheets and PowerBI dashboards Utilising your knowledge of IT services, licencing models, and Software Asset Management (SAM) Applying best practices in business analysis within a defence/national security context Providing IT support and managing IT infrastructure and cloud services Job Requirements: Experience with transformation and operational excellence projects Proven track record in improving supply chain processes...
IR35 Status:
Inside IR35

CV-Library Romsey, Hampshire Contractor
CL
Feb 25, 2026  
IT Work Package Manager
NATS are looking for an IT Work Package Manager to join them on a contract basis at their site near Fareham, Hampshire. Due to the nature of the role, applicants must be eligible to obtain SC Clearance 9-month initial contract £400-£450 p/d Umbrella, inside IR35 Hybrid working, 2-3 days per week onsite.Job Purpose/Overview Responsible for managing requests for providing consultancy to a wide range of both internal and external customers of IT infrastructure, capturing requirements, the decomposition of those requests into discrete tasks and coordinating internal teams and external supplies to deliver solutions. Other Duties Provide consultancy to consumers, helping them to understand how to consume Services as well as sourcing ideas for enhancements to our Services. Provide Design representation across the business with a knowledge of each of the Services that make up the domain.Tactical Planning: Be able to identify short term Design decisions that can resolve Programmatic...
IR35 Status:
Inside IR35

CV-Library Fareham, Hampshire Contractor
CL
Feb 19, 2026  
Junior UX Designer
NATS (National Air Traffic Services) are looking for a UX Designer to join their team on a contract basis. Location: Whiteley, PO15 (remote with adhoc site visits - est. once per fortnight) Duration: 6 month initial contract Rate: £350 per day UMB (Inside IR35) Role details: NATS is a leading Air Traffic Management company that provides innovative solutions to a diverse range of customers. Their Commercial Innovation team are looking for a UX Designer to join their team on a contract basis - the role is responsible for supporting the development of new products and services that help customers improve their Air Traffic Management operations. Responsibilities not limited to: Work closely with the Design Experience Lead, product managers, developers, and stakeholders to understand user needs and design effective solutions Conduct and communicate user research, testing and analysis to iterate and validate design decisions. Advocate for the user through deep understanding and...
IR35 Status:
Inside IR35

CV-Library Fareham, Hampshire Contractor
CL
Feb 21, 2026  
Structural Engineer
Role: Structural Engineer Location: Gosport Duration: 6 months Inside IR35: Umbrella About our Client: Our client is a leading company in defence and aerospace technology, specializing in cutting-edge research, testing, and innovation across multiple sectors. They are known for their state-of-the-art facilities and highly skilled workforce, making them a key player in advancing technology and delivering high-quality solutions Role Purpose An opportunity for a mechanical or structural engineer with a composites background to join the delivery team on a large high profile design project delivering into the maritime defence sector. The role will be responsible for activities relating to the verification and validation of composite structural and non-structural components from coupon testing through to large assemblies. The engineer will be expected to work with other teams supporting the development of both bonded and bolted composite joints and the design of the composite to...
IR35 Status:
Inside IR35

CV-Library Gosport, Hampshire Contractor
CL
Feb 19, 2026  
Chief Accountant
Chief Accountant - Interim - South Coast Spencer Clarke Group are working closely with a Local Authority on the South Coast to appoint an Interim Chief Accountant to lead the corporate and technical accounting function during a key period for financial governance and audit. This is a circa 6-9 month interim assignment, providing senior technical leadership across the Council's financial ledger, Statement of Accounts, external audit, VAT, treasury and capital accounting, supporting the S151 Officer and Director of Finance as the authority strengthens its control environment. The Role You will take ownership of the Council's core financial accounting and reporting framework, leading the production of the Statement of Accounts, managing the external audit relationship and ensuring compliance with accounting standards, CIPFA guidance and statutory requirements. What's on Offer: £500-£650 per day (inside IR35), negotiable depending on experience Contract: c. 6-9 months Full-time:...
IR35 Status:
Inside IR35

CV-Library Hampshire, UK Contractor
CL
Nov 21, 2025  
Safety & Environmental Compliance Engineer
Safety & Environmental Compliance Engineer Location: Portsmouth, Hampshire (Hybrid – 3 days on-site) Contract: 6 months (likely extension) Rates: Up to £70 an hour (Inside IR35 via umbrella)  Security Clearance: SC required prior to start Overview We’re seeking an experienced Safety & Environmental Compliance Engineer to join a leading defence and communications engineering organisation in Portsmouth. This role plays a pivotal part in ensuring Safety, Environmental, and Regulatory Compliance across multiple engineering projects — supporting delivery through the full lifecycle and ensuring all programmes meet MOD and EU standards. You’ll work closely with multi-disciplinary project teams, providing technical leadership, regulatory oversight, and clear safety guidance within a complex engineering environment. Key Responsibilities Develop and maintain Safety and Environmental Management Plans (SEMP) and Safety & Environmental Cases (SECR) in accordance with UK...
IR35 Status:
Inside IR35

CV-Library Portsmouth, UK Contractor
CL
Feb 19, 2026  
AI Cyber Researcher
AI Cyber Researcher 12 month contract Based in Newport Offering £50ph Inside IR35 Do you have experience with AI/ML techniques? Do you have experience in research, innovation, or solution development? 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 AI Cyber Researcher, 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: Undertake digital security research and innovation activities with the goal of developing solutions to the business' problems for which a solution doesn't currently exist Build and maintain awareness and knowledge of best-practice technology trends and commercially available digital security solutions Coordinate Cyber Security...
IR35 Status:
Inside IR35

CV-Library Newport PO30, UK Contractor
CL
Feb 21, 2026  
Building and Construction Project Leader
Our client has an opportunity for a Building and Construction Project Lead to join them on a contract for 12 months with possible extension. You will be responsible for setting up and leading CAPEX projects from inception and feasibility, through to design and specification and final handover. Role: Building and Construction Project Leader Location: Portsmouth, 60% onsite Hours: 37 per week Clearance: BPSS required to start. Current SC would be desirable. UK Eyes Only due to project Hourly Rate: £40.00 per hour via Umbrella, inside IR35 What you'll be doing: Develop, update/manage and monitor a project delivery plan. Identify and manage risks and opportunities. Manage CAPEX business cases from preparation through approval to delivery and project close. Develop detailed design briefs for Building Services design for a range of projects including major plant replacement and refurbishment works. Skilled and competent in IT tools, able to produce and present documentation,...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Feb 21, 2026  
Java Software Developer
On behalf of our client, we are seeking to recruit a Java Software Developer on an initial 12-month contract. As the Java Software Developer, you shall contribute to all stages of the software development lifecycle and thus have solid experience in design (particularly using UML), development (particularly using Java technologies) and test. The developer should have experience of working with microservices. Automated testing is a critical part of the project so any experience of this would be highly beneficial Role: Java Software Developer Pay: £55 per hour Via Umbrella Location: Portsmouth Contract: Monday - Friday 37 hours per week, 12 months contract IR35 Status: Inside Security Clearance: Security Clearance required on submission Responsibilities Development of code within an agile environment (scrum). Working with the team to design, implement and test features for a new product development. Task estimation in accordance with sprint planning.]Essential Skills: Java...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Feb 21, 2026  
Senior Network Engineer
Job Title: Senior Network Engineer Duration: 12 Month Contract Location: Christchurch (Hybrid 2-3 days onsite per week) Rates: £72.54 per hour via Umbrella Company (Inside IR35) Notes: Must be eligible for SC, working on UK eyes only projects Overview: Interested in developing communication systems for the future to enhance and optimise Command, Control and Situational Awareness across the whole battlespace? We are looking for network engineers to help develop in this domain in one of the world's largest engineering companies. What we're looking for in you: You should be able to demonstrate: A 'can do' attitude; deliver within agreed budgets and timescales Self-organisation and good time management Occasional travel may be required The Digital Intelligence team: Customers increasingly demand information and technology solutions delivering advantage, communications, planning, operations and cyber protection. Communications and Networks under Innovation and Technology...
IR35 Status:
Inside IR35

CV-Library Christchurch, Dorset Contractor
CL
Feb 20, 2026  
Data Engineer
Data Engineer Fully Remote 6 Months Contract £550 Inside IR35 (PAYE Rate) + Holiday  Overview We’re looking for a talented and motivated Data Engineer to join a growing Data Engineering team delivering high-quality, enterprise-scale data solutions. This is a great opportunity to work in a collaborative, technically strong environment using Microsoft technologies to build robust data platforms that enable data-driven decision-making across the business. You’ll work closely with Architects, Senior Engineers, and a wide range of stakeholders to design, develop, and deliver scalable data solutions. Alongside project delivery, you’ll play an active role in promoting engineering best practices, contributing to Agile delivery, and ensuring solutions meet high standards for security, compliance, and data governance. Role & Responsibilities Design, develop, and deliver high-quality enterprise data solutions using Microsoft data platforms Work closely with Architects and Senior...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Feb 20, 2026  
Senior Data Engineer
Senior Data Engineer Fully Remote 6 Months Contract £600 Inside IR35 (PAYE Rate) + Holiday Overview We’re looking for a talented and motivated Data Engineer to join a growing Data Engineering team delivering high-quality, enterprise-scale data solutions. This is a great opportunity to work in a collaborative, technically strong environment using Microsoft technologies to build robust data platforms that enable data-driven decision-making across the business. You’ll work closely with Architects, Senior Engineers, and a wide range of stakeholders to design, develop, and deliver scalable data solutions. Alongside project delivery, you’ll play an active role in promoting engineering best practices, contributing to Agile delivery, and ensuring solutions meet high standards for security, compliance, and data governance. Role & Responsibilities Design, develop, and deliver high-quality enterprise data solutions using Microsoft data platforms Work closely with Architects and...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Feb 25, 2026  
Principle Category Manager
Role: Principal Category Manager Duration: Initial 18-month contact (Inside IR35) Location: Reading (2-3 days a week onsite) We're working with a leading organisation to recruit an experienced Principal Category Manager for a senior commercial role supporting multiple complex programmes. This position offers strategic ownership rather than direct line management and would suit someone comfortable operating at pace in a regulated environment. Key Responsibilities Lead and deliver sourcing strategies across up to three major programmes. Own commercial strategy, contracting models, and supplier performance frameworks. Define routes to market and lead sourcing activity. Provide task leadership across commercial and procurement teams. Work closely with senior stakeholders, including executive-level contacts.Key Requirements Strong background in senior commercial or category management roles. Experience delivering complex sourcing strategies. Public sector experience is required....
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Feb 25, 2026  
Senior/Principal Electrical (EC&I) Commissioning Engineer
We are seeking an experienced Senior/Principal Electrical (EC&I) Commissioning Engineer to support a major defence project at a secure, highly regulated site near Reading. This is a senior, site-based role requiring a high level of technical expertise, leadership, and experience in commissioning, testing, and assurance of electrical and control systems within safety-critical environments. Role: Senior/Principal Electrical (EC&I) Commissioning Engineer Location: Reading (site-based) Rate: £55-£70 per hour Inside IR35 (Based on year's experience) Employment Type: Contract 12 Months Key Responsibilities Lead and oversee the commissioning, testing, and validation of electrical and EC&I systems on a complex defence project and provide technical leadership and mentorship to junior commissioning engineers and site teams. Develop, review, and approve commissioning strategies, test procedures, and method statements, alongside supervising functional testing, fault finding, and...
IR35 Status:
Inside IR35

CV-Library Reading, UK Contractor
CL
Feb 20, 2026  
Data Analyst
£240 + VAT per day 6‑month Contract (Inside IR35) - Umbrella only Reading, Berkshire UK (Hybrid) Your new company We are a nationally recognised public sector organisation with a proud history of transforming lives through education, innovation and community support. As we modernise our digital and data landscape, we are placing far greater emphasis on the quality, structure and reliability of our information. With multiple CRM platforms and complex data flows underpinning our services, we are strengthening our operational data capability to ensure our systems remain accurate, well‑governed and future‑ready. This is where your technical expertise becomes essential. As we embed new standards and uplift our data maturity, we need someone who can bring strong SQL capability and CRM knowledge to keep our information consistent, trusted and flowing smoothly across the organisation. Your new role You'll be the first point of contact for data‑related queries, using your strong SQL...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Feb 20, 2026  
Incident Response Manager | Contract | SC Cleared
Job Title: Holistic Incident Response Manager (WARP) Location: Hybrid – Reading (2 days/week onsite, travel expensed) Clearance: Active SC clearance required Contract Type: Inside IR35 Duration: 6 months Start Date: ASAP Overview: An exciting opportunity to join a nationally significant programme within the defence and national security sector, delivering critical cyber resilience outcomes. We’re seeking an experienced Incident Response Manager to lead cyber readiness and response activities, including the development and coordination of a Warning, Advice and Reporting Point (WARP) capability. You’ll be responsible for aligning incident response frameworks with national cyber standards, improving incident preparedness, and coordinating internal and external cyber stakeholders. Key Responsibilities: Lead the design and implementation of incident response processes and WARP capability Act as the central liaison between internal teams, national cyber bodies, and...
IR35 Status:
Inside IR35

CV-Library Reading, UK Contractor
CL
Feb 19, 2026  
Registered Building Inspector (Class 2 RBI+)
Registered Building Inspector (Class 2 RBI+) – Berkshire – Up to £115k/Annum Location: Berkshire Contract: Initial 6 months (likely extension) Rate: £55 – £65 per hour (up to £9,620/month) IR35: Inside IR35 (Outside IR35 a possibility) Hours: Full-time hours Start Date: ASAP (notice periods considered for the right individual) Role Overview An excellent opportunity has arisen for an experienced Registered Building Inspector (Class 2 RBI+) to support a busy Building Control in/around the Berkshire area. The role offers a strong hourly rate, full-time hours, and flexibility around start date for the right candidate. Key Details * Class 2 RBI+ registration essential * Experience across a broad range of Building Control duties * Ability to manage your own caseload with minimal supervision * Strong knowledge of current Building Regulations and legislation * Excellent communication and stakeholder management skills Apply: For more information, please contact Ben...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
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