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Contractor 30
Engineering Inside IR35 Hertford

30 jobs found in Hertford

CL
Aug 13, 2026  
Senior/ Managing Quantity Surveyor x2 - Waltham Cross & Taunton
Managing Quantity Surveyor / Senior Quantity Surveyor (Contract) Locations: Waltham Cross, Hertfordshire or Taunton, Somerset Rate: £500+ per day (Inside IR35) Sector: Utilities | Energy Infrastructure | Power Transmission Contract: Long-term About the Opportunity We are currently recruiting for experienced Managing Quantity Surveyors and Senior Quantity Surveyors to support the delivery of major National Grid infrastructure projects. Working for a leading infrastructure contractor, you'll play a key role in the commercial management of significant power transmission schemes, ensuring strong commercial governance, effective risk management and successful project delivery. Key Responsibilities Commercial management of major infrastructure projects NEC3/NEC4 contract administration Cost control, forecasting and financial reporting Cost Value Reconciliation (CVR) Compensation Events, Variations and Claims Subcontract procurement and management Final Accounts Commercial risk...
IR35 Status:
Inside IR35

CV-Library Hertfordshire, UK Contractor
CL
Aug 13, 2026  
Commercial Manager
Commercial Manager Hertfordshire, 12 Month Contract £ - Inside IR35   We are seeking a proactive, analytical, and relationship-driven Commercial Manager to join our dynamic commercial team. Covering the full product lifecycle—from initial concept and bidding through to in-service delivery and disposal—you will act as the commercial focal point for major defense programmes.   Key Responsibilities Drive the full Route to Contract during bidding phases. Coordinate multi-functional teams to deliver accurate cost proposals, negotiate terms, and secure new business while protecting profitability. Oversee day-to-day contractual compliance, managing amendments, risk profiles, and delivery obligations to ensure we meet every promise made to our customers. Establish and maintain collaborative, long-term relationships with key customers, international partners, and major stakeholders. Serve as the primary point of contact for contractual queries, working closely with legal counsel to manage...
IR35 Status:
Inside IR35

CV-Library Hertfordshire, UK Contractor
CL
Aug 15, 2026  
Quantity Surveyor
Role: Quantity Surveyor Rate: Circa £450/Day (Inside IR35) (Negotiable DOE) Location: Waltham Cross (Minimum 3 days per week on site) Length of Contract: Initial 6 months Want to work on a major overhead line project delivering critical UK power infrastructure? Our client is looking for two experienced Quantity Surveyors to join their commercial team on a high-profile Overhead Line (OHL) project based in Waltham Cross. This is an excellent opportunity to support the commercial delivery of a nationally significant energy infrastructure scheme while working alongside an experienced project team. Job Role As a Quantity Surveyor, you will support the commercial management of the project, ensuring costs are effectively controlled and contractual obligations are met throughout the project lifecycle. Working closely with Project Managers and the wider commercial team, you'll prepare commercial reports, manage subcontractor accounts, administer compensation events, monitor project...
IR35 Status:
Inside IR35

CV-Library Waltham Cross, UK Contractor
CL
Aug 15, 2026  
Manufacturing Engineer
World Class Defence Organisation based in Stevenage is currently looking to recruit a Manufacturing Engineer. The department are looking for candidates with skills in the following: Verification & validation, design modifications, commissioning, FMEAs, configuration control, sub-assembly manufacturing.   Rate: £35.00 per hour Location: Stevenage Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)   Manufacturing Engineer Job Description: As a Manufacturing Engineer within the unit & missile assembly manufacturing facility your focus will be to ensure that our products are built efficiently and to budget. A key member of the Manufacturing Engineering team, you will carry out activities in support of multi-project manufacturing. Compilation and update of Manufacturing Instructions. Design,...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Aug 15, 2026  
Component Engineer
On behalf of our client, we are seeking to recruit a Component Engineer on an initial 6-month contract. The Component Engineer will be part of a multi-disciplined team completing administration activities, technical advisement, making requests to suppliers and responding to internal queries. You will ensure we deliver a comprehensive component service offering technical advice and ensuring accuracy of data. Role: Component Engineer Pay: Up to £50.00 per hour Via Umbrella Location: Stevenage or Bolton Contract: Monday- Friday, 37 Hours per week, 6 Months contract IR35 Status: Inside Security Clearance: SC Required to start, UK Eyes only Responsibilities Processing and responding to support queries Processing component data (based on Life cycle status, Export Control and REACH/RoHS compliance) Working within departmental processes completing administration tasks Support for Electronic, Electrical, Mechanical or Material commodities Support continuous improvement activities...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 14, 2026  
Manufacturing Engineer - Assembly and Integration
On behalf of our client, we are seeking to recruit a Manufacturing Assembly & Integration Engineer Lead on an initial 12-month contract basis. As the Manufacturing Assembly & Integration Engineer your focus will be to ensure that our products are built efficiently and to budget. A key member of the Manufacturing Engineering team, you will carry out activities in support of multi-project manufacturing. Role: Manufacturing Assembly & Integration Engineer Pay: £32 - £35 per hour Umbrella rate Location: Stevenage - fully onsite Contract: Monday to Friday, 37 hours per week, 12 months IR35 Status: Inside SC Clearance: SC however can start on BPSS Responsibilities: Compilation and update of Manufacturing Instructions. Design, Commissioning and proving of associated tooling. Support the industrial validation process using FMEA's, FAI's etc. Resolution of technical problems that may arise during the manufacturing process. Route card changes as a result or rework...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 14, 2026  
Systems Design Engineer ( System Performance )
World Class Defence Organisation is currently looking to recruit a Systems Design Engineer (System Performance) on an initial 6 month contract.    Candidates from a background of working as a Systems Design Engineer OR Simulation and Modelling Engineer OR Algorithm Engineer with experience of Matlab / Simulink would be great.   Rate: £75.00 per hour Location: Stevenage Hybrid / Remote working: 4 days per week onsite. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)   Job Description: As one of two System Design Functions in Missile Architecture and Validation UK, System Design Missiles (SDM) is focused on providing Systems Engineering skills to Missile Systems programmes. As such we provide systems engineering skills to the project teams to establish requirements, system architectures and to guide the...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Aug 14, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 12 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: 4 days a week likely onsite (likely could be lower on a week by week basis; depending on work). 1 day remote. (flexible on start and finish time). A compressed 4 day week (Monday to Thursday) a possibility. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Mechanical Design Engineer Job Description: An opportunity to become part of Europe’s No. 1 Missile Systems Designer, as a Mechanical Design Engineer. You will...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
Mechanical Design Engineer 12 month contract Based in Stevenage Offering £50ph Inside IR35 Do you have experience using CREO? Do you have experience carrying out mechanical design and proving activities? 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 Mechanical 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: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies Support/liaise with manufacturing, resolving manufacturing problems & defects Support the functional & environmental testing and trials Liaise with suppliers/purchasing to...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 13, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Stevenage - 4 days/week onsite minimum (likely flexible week to week) + 1 day remote Duration: 12 months Rate: £50/hour Umbrella IR35: Inside Clearance: SC + BPSS to start (UK Eyes Only) Overview You will work closely with other functional teams, to develop products to meet our customer's needs. Within this role you will have the opportunity to work as part of a multi-disciplinary team to perform a range of engineering activities including progressing developmental designs into production environments and working with suppliers on technical queries. Responsibilities: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies. Support/liaise with manufacturing, resolving manufacturing problems & defects. Support to functional & environmental testing and trials. Liaise with suppliers/purchasing to resolve any technical queries that may arise....
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 13, 2026  
Commercial Manager
World Class Defence Organisation is currently looking to recruit a Commercial Manager on an initial 12 month contract.  The role will be a hybrid position of 2-3 days per week onsite.   Rate: £80.00 per hour Location: Stevenage Hybrid / Remote working: 3 days per week onsite. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)   Job Description: To operate within an active, involved and motivated commercial team, in a sector committed to delivering Defence Capability to the UK Armed Forces and other World Governments, covering all aspects of the product lifecycle from concept to disposal. Responsibilities: Business Strategy - maximising identified business opportunities. • Business Winning - Being a key player in the winning of new work. Responsible for the full Route to Contract, including being the...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Aug 14, 2026  
Principal Firmware Engineer
Principal Firmware Engineer Luton 12-month contract Paying up to £85p/h (Inside IR35) Please Note - Due to the nature of the work you?ll be required to be eligible to obtain a high level of UK Security Clearance Responsibilities: Design tools such as Xilinx, TCL, Verilog, System Verilog and UVM FPGA architectures such as Xilinx 7. Xilinx UltraScale; Intel (Altera) or Microsemi (Actel). Fast interfaces such as PCIe, Ethernet, and JESD is also required. Auto-generated code using model driven engineering using MATLAB and Simulink tools Derivation of detailed Firmware requirements and architecture from system requirements A structured approach to firmware design (RTCA DO-254 or similar) Artificial Intelligence including machine learning and genetic algorithms Electronics test methods and equipment Experience required: HNC/HND or Undergraduate Degree (Electronic Engineering, Computer Science, AI, Games Programming, Physics, or Applied Physics) or you may just have lots of...
IR35 Status:
Inside IR35

CV-Library Luton, Bedfordshire Contractor
CL
Aug 13, 2026  
Project Manager
Job title: Project Manager Job Type: Contract Start date: Immediate Duration: Up to Dec 2026 (Extension possible beyond this) IR35 Status: Inside Pay rate: Up to £380 PAYE per day, £516 Umbrella per day Location: London or Bristol Office Hours of work: 5 days per week, hybrid working available The EPR Fleet Collaboration Project Manager will support the delivery of a major nuclear collaboration programme, driving knowledge sharing, continuous improvement and operational efficiency across large-scale nuclear infrastructure projects. Working within a complex, multi-stakeholder environment, you will coordinate programme activities, monitor performance, manage governance and reporting, and support the implementation of collaboration frameworks to maximise value and ensure best practice is shared. This is an excellent opportunity for an experienced Project Manager to contribute to the delivery of nationally significant nuclear projects while helping to improve efficiency,...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Aug 12, 2026  
Digital Tools Mobilisation Lead
Are you an experienced Microsoft 365 or Digital Workplace professional with a background in major infrastructure or rail? Do you have experience implementing SharePoint, Microsoft Teams and collaboration tools across complex programmes? Location: Birmingham (Hybrid) Rate: Competitive Day Rate (Inside IR35) Contract: 6 Months + A major infrastructure consultancy is looking for an experienced Digital Tools Mobilisation Lead to support the mobilisation of a high-profile rail programme. This is a hands-on contract role where you'll be responsible for implementing and embedding the collaboration tools that enable multiple teams and partner organisations to work together effectively. You'll play a key part in improving how information is shared, ensuring digital tools are configured efficiently and creating a consistent way of working across the programme. Working closely with programme leads, IT teams and key stakeholders, you'll configure and optimise Microsoft 365 applications...
IR35 Status:
Inside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Aug 12, 2026  
BMS Systems Process Integrator
Are you an experienced business process or operating model professional with a background in rail infrastructure? Do you have experience integrating business processes across multiple functions, improving ways of working, and influencing senior stakeholders? Location: London (hybrid) Rate: £450 to £550 inside IR35 Contract Length: 12 months + A major infrastructure consultancy is looking for a BMS Systems Process Integrator to join its Alliance Delivery Team, supporting one of the UK's largest infrastructure programmes. This is a unique opportunity to play a key role in shaping how a major alliance operates, bringing together business processes across multiple disciplines into one integrated operating model. You'll work with senior stakeholders from across commercial, planning, governance, project controls, technical and digital teams to ensure processes align, interfaces are managed effectively and the programme operates as one cohesive system. The Role Reporting into the...
IR35 Status:
Inside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Aug 16, 2026  
Senior project engineer
Senior Project Engineer Location: London Rate: £400 per day (Inside IR35) Duration: Long-term Contract Sector: Rail Infrastructure About the Role Carmichael UK is seeking an experienced Senior Project Engineer to join a major rail infrastructure project in London. This is an excellent opportunity to become part of a high-profile programme of works, delivering complex engineering solutions within a multidisciplinary project environment. Working for a leading Tier 1 delivery partner, you will play a key role in coordinating engineering activities, managing technical interfaces, and ensuring the safe and efficient delivery of rail infrastructure works. Responsibilities Lead and coordinate engineering activities across defined work packages. Ensure works are delivered in compliance with design specifications, project requirements, and Network Rail standards. Manage technical queries, RFIs, temporary works, and engineering documentation. Coordinate with site teams,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 15, 2026  
Network Engineer - Wireless, Meraki, Multisite
Network Engineer - Wireless, Meraki, Multi-site Up to £550 per day (Inside IR35) Hybrid / London 6 months My client is an instantly recognisable brand who urgently require a Network Engineer to design, optimise, and troubleshoot Enterprise Wireless Networks across multiple sites. The role focuses on ensuring secure, non-performance connectivity and excellent end‑user experience. Key to this role is size, scale and complexity of deployments and a track record of delivering across complex, multi-site organisation(s). Key Requirements Proven experience as a Network Engineer within large, complex multi-site organisations Strong knowledge of enterprise Networking technologies and best practices Familiarity with Cisco, Aruba, Meraki or similar vendors Hands‑on experience producing and delivering low level Network designs Proven track record troubleshooting and resolving live Network issues Experience working on large scale Network transformation or modernisation initiatives...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 13, 2026  
Monitoring Engineer
I'm working on a Monitoring Engineer contract opportunity that I thought might be relevant to your background. The role is fully remote, with occasional travel to the office 1-2 days per month, and offers up to £580 per day (Inside IR35), 6 months rolling contract. We're looking for someone with strong observability and monitoring experience across technologies such as Dynatrace, Splunk, AppDynamics, APM, and SRE practices. A key requirement is holding a Dynatrace Associate Certification. Key Responsibilities Design and implement monitoring and observability solutions. Configure and support Dynatrace, Splunk, and AppDynamics. Build and maintain dashboards, alerts, and visualisations. Deliver APM, infrastructure, synthetic, and log monitoring solutions. Support live services, incidents, and problem resolution. Analyse performance issues and perform root cause analysis. Work with architects and project teams to embed monitoring into new solutions. Drive SRE and observability best...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 12, 2026  
IT Deployment Engineer
Inside IR35 - Basic Hardware Deployment of Desktops & Monitors - Hardware decommision - Intro level configuration - Must be physically fit and excellent communicator Ongoing project work available
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 15, 2026  
D&R engineer / ADAS Application Engineer Lead
D&R Engineer / ADAS Application Engineer Location: Dunton, Basildon, Essex (4 days onsite per week) Rate: £30.18 per hour Umbrella (Inside IR35), increasing to £39.55 per hour after 13 weeks Contract: Initially until the end of 2026, with potential extensions into 2027 Hours: 37.5 hours per week Please note a UK Driving Licence is essential to apply. D&R Engineer / ADAS Application Engineer Lead wanted to support the development and delivery of Advanced Driver Assistance Systems (ADAS) across European EV and Commercial Vehicle programmes. This is an excellent opportunity to work on cutting-edge vehicle technologies, supporting feature development, systems integration, testing, validation and programme delivery within a leading global automotive manufacturer. Key Responsibilities * Lead engineering activities supporting programme milestones and gateways. * Support the development and delivery of ADAS technologies. * Manage supplier deliverables and...
IR35 Status:
Inside IR35

CV-Library SS15, Laindon, Essex Contractor
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