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Inside IR35 Contractor Welwyn Garden City

122 jobs found in Welwyn Garden City

CL
Jul 11, 2026  
RF Engineer
Our client has an opportunity for a RF Engineer to join them on a contract basis for 6 months with possible extension. You will be designing complex, real-time simulations that surround real hardware. Role: RF Engineer Location: Stevenage, 4 days onsite per week Hours: 37 per week Hourly Rate: £65-£75 per hour via Umbrella, inside IR35 Clearance: BPSS required before starting, full SC to follow What you'll be doing: As a HWIL RF engineer, you will be responsible for designing and developing and maintaining new and existing RF equipment and working with multi-disciplinary teams to combine RF, electronics engineering and software development to produce new capabilities that enable the HWIL team to run new simulations. You will be able to adapt to new engineering situations and be comfortable in abstracting detail in order to understand the simulation and missile's behaviour What you'll be doing: Broad engineering experience with deeper experience in some of the following...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 09, 2026  
Electronics Engineer
On behalf of our client, we are looking for a Electronics Engineer to join them on an initial 12-month basis. As Electronics Engineer you will join the Calibration & Maintenance Team, to service Electrical and Electronic Test Equipment, including Special to Type Test Equipment. Some of these tasks include fault finding and repair of test equipment, supporting routine calibrations, commissioning of Test Equipment and drift analysis. Role: Electronics Engineer Pay: £32 -£35 per hour via Umbrella Location: Stevenage Contract: 12 months (possible extension) IR35 Status: Inside Security Clearance: SC Clearence needed however can start on BPSS Skillset/experience required: Minimum qualification: HNC/HND in Electrical & Electronics Engineering. Experience and knowledge in the calibration of test equipment and maintenance of test systems to component level. Able to utilise instructions, handbooks, drawings or specifications to provide technical advice/guidance. Able to use...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 08, 2026  
Electrical Architect
On behalf of our client, we are seeking to recruit an Electrical Architect on an initial 6 - month contract. As the Electrical Architect you will be responsible in all aspects of missile development, from the early concept studies to series production and in-service support Role: Electrical Architect Pay: £60 - £85 per hour Umbrella Location: Stevenage, Bristol or Bolton Contract: Monday- Friday, 37 Hours per week, 6 Months Contract IR35 Status: Inside Security Clearance: SC will be required however can start on BPSS Essential Responsibilities Own the electrical architecture and requirements for missile/launcher systems. Define interfaces between subsystems (ICDs, characteristics, constraints). Build the power architecture (budgets, profiles, distribution). Define data comms/processing architecture and system interconnects. Set EMC, bonding, grounding, screening and signal safety requirements. Support integration, test, compatibility checks, qualification and...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 08, 2026  
C / C++ Software Engineer
World Class Defence Organisation based in Stevenage is currently looking to recruit 2x Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: Our ever-evolving team powers the business across Europe and brings the next generation of defence solutions to life. Together we experiment, innovate and create across the full product lifecycle. And, in a collaborative and close-knit culture, we support...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 08, 2026  
Embedded Software Engineer
World Class Defence Organisation based in Stevenage and Bolton is currently looking to recruit 2x Embedded Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage or Bolton (depending on your preference) Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: We supply a full range of hard real time software solutions for the next generation of missile and defence solutions. This unique and exciting opportunity will allow you to develop technical...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 06, 2026  
Software Engineer C C
Software Engineer JOB LOCATION: Stevenage SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) RATE: £ 65.00 Per hr on Umbrella (Inside IR35) Essential Skillset & Tools * Previous software engineering experience in the development of test solutions * Strong ability to write software in C / C++; scripting languages would be an advantage to our future direction. * Previous experience working in an agile development team. * A good understanding of automation, continuous integration * Knowledge of electronics measurement and debug techniques using equipment such as oscilloscopes and spectrum analysers Overview: * Technology matters more at MBDA. Our ever-evolving team powers the business across Europe and brings the next generation of defence solutions to life. Together we experiment, innovate and create across the full product lifecycle. And, in a collaborative and...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 06, 2026  
Software Engineer C, C++ / ADA
Software Engineer JOB LOCATION: Stevenage & Bolton SECURITY CLEARANCE LEVEL: SC to Start DURATION: 6+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) RATE: £ 70.00 Per hr on Umbrella (Inside IR35) TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Open to all industries where skillset is apparent; Def/Aero would be ideal however. Essential Skillset & Tools * C/C++ EXPERIENCE (ADA WOULD BE A DESIRABLE ON TOP OF THIS, BUT NOT ESSENTIAL) * An awareness of developing and deploying software on real-time Operating Systems, Risc-V and ARM-based processing platforms. * Excellent analytical and design ability, including review and critical analysis. * Knowledge of modern software development practices Overview: * The growing workload within MBDA UK has created an exciting opportunity within the Embedded Software team . * We supply a full range of hard real time software...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 05, 2026  
Electronics Design Engineer
Electronics Design Engineer 12 Month Contract Based in Stevenage Offering £58ph Inside IR35 Do you have strong experience in Electronic Design? Do you have experience throughout the product lifecycle? Do you want to work with an industry-leading company? If your answers are yes to these, then this could be the role for you! As the Electronics Design 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: Developing cutting-edge electronic solutions Responsibility for the quality and performance of the electronic solution together with providing cost and schedule updates to a project manager Electronic design capability throughout the product life cycle Implement technical solutions will range across the Power and Analogue...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 10, 2026  
Engineering Work Package Manager
Location: Luton (4-5 days per week onsite) Duration: 12 month contract Rate: £79.80ph UMB (Inside IR35) Role details: Our client, a leading defence and aerospace company, are looking for 5 x Engineering Work Package Managers to join them on a contract basis. Within their Integrated Project Team (IPT), you will lead a cross-functional engineering team to deliver a complete, compliant solution that meets customer, contractual, legal, and company requirements, while balancing performance, cost, and schedule. You will define and structure the project's Work Breakdown Structure (WBS), plan and schedule engineering activities, and provide regular progress reports. You will also establish key performance indicators (KPIs) to measure efficiency and effectiveness, using these to monitor and improve engineering performance. The role includes working closely with customers and suppliers, aligning Engineering Plans with project constraints, managing resources, identifying and...
IR35 Status:
Inside IR35

CV-Library Luton, Bedfordshire Contractor
CL
Jul 10, 2026  
Work Package Manager
Work Package Manager Luton 12-Month Contract Paying up to £80p/h (Inside IR35) Please note - due to the nature of the work, you'll be required to hold or obtain a high level of UK security clearance Overview: As the Engineering Work Package Manager, you will be required to define and structure the project's Work Breakdown Structure (WBS), plan and schedule engineering activities, and provide regular progress reports. You will also establish key performance indicators (KPIs) to measure efficiency and effectiveness, using these to monitor and improve engineering performance. Key Responsibilities Lead the engineering side of projects Providing teams with clear expectations of the engineering outcomes Ensuring teams operate consistently within the Policies & Procedures and foster the improvement goals defined by the Engineering Function Manage multi-disciplinary teams across sites Establishing and maintaining good lines of communication internally across the Engineering...
IR35 Status:
Inside IR35

CV-Library Luton, Bedfordshire Contractor
CL
Jul 08, 2026  
Principal Systems Engineer
Principal Systems Engineer Luton 12-Month Contract Paying up to £85p/h (Inside IR35) Key Responsibilities Development of RF system requirements. Assisting engineering domains in design and integration activities. Assisting with requirements definition for integration, qualification, verification, and validation activities Essential: Hold a degree or equivalent qualification in a relevant Scientific/Engineering subject (e.g. Systems Engineering, Electronic Engineering, Aerospace, Physics or Mathematics) Experience working in an agile environment and experience across the full engineering lifecycle Knowledge of modelling and analysis using MATLAB and Cameo, Knowledge of the fully systems lifecycle Previous experience working on RF systems OR EW projects within the Aerospace or Defence sector is desirable Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering...
IR35 Status:
Inside IR35

CV-Library Luton, Bedfordshire Contractor
CL
Jul 11, 2026  
Desktop Support Engineer
Desktop Support Engineer, Office365, Google workspace, Desktop , 3 month contact Inside IR35 This role is an onsite role, you will need to go through Enhanced DBS check . Because on this, work visas can not be sponsored Are you passionate about IT support and troubleshooting? Do you enjoy helping users resolve technical issues and ensuring smooth IT operations? This is a fantastic opportunity to join a growing IT support team, where you will play a key role in providing first-class technical support to users across multiple locations. This role is ideal for an IT support professional with experience in mobile and desktop device maintenance, troubleshooting peripherals, and basic networking. If you have strong customer service skills and enjoy working in a dynamic, user-focused environment, we’d love to hear from you! The Role As a Desktop Support Engineer, you will provide on-site and remote IT support, ensuring users receive fast, effective resolutions to their technical...
IR35 Status:
Inside IR35

CV-Library Northwood, UK Contractor
CL
Jul 08, 2026  
Global Marketing Procurement Manager
The Global Marketing Procurement Manager will be responsible for managing procurement activities and supplier relationships within the sector. This temporary role is based in North West London and requires expertise in media and market insights procurement. Client Details This organisation is a well-established, global organisation. They are known for their commitment to excellence in procurement and supply chain operations, providing innovative solutions to meet market demands. Description As Global Marketing Procurement Manager, duties will include, however, not be limited to: Develop and execute procurement strategies for media and market insights categories. Manage supplier relationships to ensure optimal value, quality, and service delivery. Conduct market analysis to identify cost-saving opportunities and drive innovation. Negotiate contracts and manage supplier agreements in line with company policies. Collaborate with internal stakeholders to align procurement...
IR35 Status:
Inside IR35

CV-Library North West London, London Contractor
CL
Jul 10, 2026  
Interim Aids and Adaptations Surveyor
Aids and Adaptations Surveyor £56.53 per hour (Umbrella Inside IR35) Central Bedfordshire Council 5 month initial contract (with a view to extend)   Role Overview: Manage all referrals for aids and adaptations for council tenants with disabilities, ensuring properties are suitable for necessary adaptations and overseeing the entire process from assessment to completion. You'll collaborate with occupational therapists (OTs), tenants, and contractors to deliver high-quality adaptations while managing budgets and ensuring compliance with regulations.   Key Responsibilities: ·Manage referrals for aids and adaptations for council tenants with disabilities ·Conduct site visits with OTs to assess property suitability for adaptations ·Provide specialist advice on property adaptations ·Collate information for senior management to approve major adaptations ·Refer tenants to the Tenancy Sustainment Team for possible relocation ·Assess potential void properties for adaptation...
IR35 Status:
Inside IR35

CV-Library Chicksands, Shefford SG17 5XY, UK Contractor
CL
Jun 17, 2026  
Health And Safety Manager
Health & Safety Manager – Major Civils (Contract) Location: London Assignment Rate: £500 – £600 per day (Inside IR35) Job type: Contract Working Pattern: Hybrid – 3 days per week on site We are supporting a client organisation delivering one of the UK’s largest and most complex infrastructure programmes in the appointment of an experienced Health & Safety Manager on a contract basis. This role is operationally focused, with a strong site presence required to support live major civils works, while also allowing flexibility through a hybrid working arrangement. The position is suited to candidates with genuine major civils experience. Consultancy or light construction backgrounds will not be suitable. The Role You will operate as a site-embedded Health & Safety Manager, working closely with construction managers, engineers and subcontractors to ensure works are delivered safely, compliantly and in line with Tier 1 standards. The role balances hands-on site...
IR35 Status:
Inside IR35

CV-Library Camden, Greater London Contractor
CL
Jul 09, 2026  
Quantity Surveyor
Are you a Quantity Surveyor with experience of working on a major UK infrastructure project?   Do you have experience of working on NEC forms of contract and demonstrable experience of managing subcontractors?   Location: Northwest London Duration: 9 months, potential for extension Rate: £(Apply online only)/day DOE IR35: Inside - Umbrella   This role offers hybrid working where you will be required on site 3 x days a week and work from home 2 x days.   Due to the nature of the role, only candidates with experience of working on a major UK infrastructure project can be considered for this opportunity.   Our client is a main contractor delivering heavy civils work on HS2. Due to an increase in work, they require a Quantity Surveyor to work closely with the delivery team on the project. The successful candidate will have to have experience working on NEC forms of contract and subcontractor management.   As Quantity Surveyor, you will be responsible for preparation of...
IR35 Status:
Inside IR35

CV-Library North Acton, London, UK Contractor
CL
Jul 10, 2026  
Change Management Analyst – CRM / Investment Banking
Change Management Analyst - CRM / Investment Banking I’m looking for a Change Management Analyst for a 12-month contract (Inside IR35) with a leading global advisory/investment banking firm. The role will support a major CRM and business adoption programme across London-based banking users. This is a highly user-facing role, so the client needs a polished, confident change professional who can work directly with bankers and understand how they operate day to day. This is not a back-office change role. You will be supporting front-office users across relationship management, pipeline management, deal activity, and adoption of a new CRM platform. Key responsibilities: * Support user adoption and business change activity for a CRM transformation programme * Work directly with Investment Banking users to understand issues, feedback, and resistance points * Support communications, training, floor-walking, and one-to-one user engagement * Prepare user guides, briefing materials,...
IR35 Status:
Inside IR35

CV-Library W1, Marylebone High Street, Greater London Contractor
CL
Jul 09, 2026  
Cyber Security
Cyber Security Analyst 6-Month Contract | Inside IR35 | Hybrid (2 Days Onsite) We are seeking a hands-on Cyber Security Analyst to support a major public-sector organisation's cyber security operations and resilience programme. Key Responsibilities * Monitor, investigate and respond to cyber security incidents. * Support security monitoring using Microsoft Sentinel and related tools. * Conduct threat hunting, log analysis and security investigations. * Identify vulnerabilities and track remediation actions. * Develop and improve incident response processes and playbooks. * Work with technical teams, suppliers and stakeholders to drive security improvements. * Provide practical security advice across the organisation. Essential Skills * Cyber Security Operations, SOC or Incident Response experience. * Hands-on Microsoft Sentinel or SIEM experience. * Threat hunting, log analysis and security monitoring. * Experience with Microsoft Defender and...
IR35 Status:
Inside IR35

CV-Library EC1, Farringdon, Greater London Contractor
CL
Jun 18, 2026  
Tooling Design Engineer
Tooling Design Engineer Ampthill, Bedfordshire Contract (6 months), inside IR35, 37.5h, 4 day working week Monday to Thursday About the Role The Operations Engineering team provides engineering resources to support Operational performance and major product development projects; from design through to engineering build and production support, to end of life of product. The team provides full product lifecycle support including prototype design & build, development and integration of the build documentation and supporting requirements of full production build. This role will be required to provide technical support to the team in the design, development and implementation of industrial tools, jigs, fixtures, prototype model production and machine attachments required for production or experimental use, considering such factors as accessibility, economy, mobility, performance requirements and ensure legislative compliance is adhered to. A thorough working knowledge of CAD...
IR35 Status:
Inside IR35

CV-Library Ampthill, Bedfordshire Contractor
CL
Jul 11, 2026  
Business Analyst - TV Adsales, Broadcast Airtime Sales
Senior Business Analyst - Broadcast TV Advertising Adtech/Adsales/Airtime Sales Inside IR35 Rate to Umbrella £(Apply online only)pd Hybrid Working - Location - Typically at least 1 dpw West London 6 months initially Looking for a Senior Business Analyst with solid commercial TV Broadcast industry experience, with some experience in Broadcasting TV/Vod Advertising such as Adtech/Adsales/Airtime Sales/Avod etc. Specific experience around Ad inventory planning and forecasting, Ad slotting / optimisation, Ad creative and compliance management would be preferred. Working closely with the business and product team that define outcomes this role will focus on analysis to interpret that and produce the user stories for engineering/development. Looking for a self-starter with 6+ years similar Business Analysis experience gained within the Media/Broadcast Adsales sector and someone available on short notice, ideally within 2 weeks. You will play a key role in delivering...
IR35 Status:
Inside IR35

CV-Library West London, London Contractor
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