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Contractor 22
Engineering Outside IR35 senior systems engineer

22 senior systems engineer jobs found

CL
Aug 06, 2026  
Senior Civil Engineer
Senior Civil Design Engineer £38 to £55 per hr Outside IR35 Reading Hybrid working available Our client is an award winning multi disciplinary design consultancy who are based near Reading. The are looking to recruit a Civil Design Engineer who has experience of Drainage Design on a wide range of residential and commercial type projects. The right candidate will undertake tasks designing infrastructure for commercial, retail, residential and industrial sectors. Civil Engineer Job Overview • Design of infrastructure for commercial, retail, residential and industrial sectors including SUDS drainage systems, roads to adoptable & DMRB standards. • Liaison with statutory bodies such as Southern & Thames Water, Roads Department, local drainage authorities. • Attend design meetings, site meetings and carryout site inspections. • Liaise and communicate clearly in a professional manner to colleagues, clients, contractors and other designers and to offer advice and...
IR35 Status:
Outside IR35

CV-Library Reading, UK Contractor
CL
Aug 05, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Engineer - Water Sector St Albans: Hybrid (3 Days Office) Contract: £45-£50/hr (Outside IR35) Advance TRS are supporting a rapidly growing consultancy in their search for a Senior Mechanical Engineer. Joining a newly formed London business unit, you'll have the unique opportunity to help build a team from the ground up, influence how projects are delivered, and play a significant role in the future growth of the business within the UK water market. You'll lead the mechanical design of clean water and wastewater projects, producing high-quality engineering solutions while mentoring junior engineers and coordinating multidisciplinary design teams. Key Responsibilities: * Deliver mechanical design solutions for water and wastewater projects * Produce calculations, reports, specifications and design drawings * Lead and review work from junior engineers and CAD technicians * Coordinate with suppliers, manufacturers and subcontract design teams * Ensure designs...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Aug 05, 2026  
Senior EC&I Engineer
Senior EC&I Engineer Nuclear Manufacturing Company | Near Manchester Up to £51.40 per hour | Outside IR35 4-Day Working Week (4 x 10-hour days) A specialist nuclear manufacturing company near Manchester is looking for a Senior EC&I Engineer to support the design and delivery of complex engineering projects within a highly regulated environment. This role will involve working on specialist systems and equipment, including gloveboxes and similar containment solutions, supporting projects from concept through to manufacture and commissioning. Key Responsibilities Deliver EC&I design activities across concept, scheme and detailed design stages Produce and support technical documentation for UKCA / CE Marking compliance Ensure designs meet applicable safety standards and engineering regulations Support multidisciplinary engineering teams throughout project delivery Provide technical support during manufacture, testing and commissioning What We're Looking For Strong...
IR35 Status:
Outside IR35

CV-Library Preston, Lancashire Contractor
CL
Aug 01, 2026  
Senior Mechanical Design Engineer
Contract position Outside IR35 On-site/Hybrid working Our client, specialises in Zero-Emission Aerospace development is seeking a highly skilled Senior Mechanical Design Engineer to create, own, and maintain complex mechanical designs and CAD data. Proven Aerospace experience is Essential Fuel cell related development is Desirable Key Responsibilities: CAD Design & Ownership: Full ownership of CAD design and associated data for assigned components and assemblies Create detailed 3D CAD models of complex parts and assemblies (NX preferred) Produce high-quality 2D production drawings conforming to ASME standards and all applicable regulatory requirements Maintain CAD and engineering assets within the PLM system (Teamcenter or similar) Provide CAD design solutions for technical challenges across multiple projectsEngineering & Analysis: Apply strong understanding of GD&T, materials, finishes, and manufacturing processes Use knowledge of stress analysis principles to...
IR35 Status:
Outside IR35

CV-Library Gloucestershire, UK Contractor
CL
Aug 01, 2026  
Senior Design Engineer - Driveline and Transmissions
A contract position Outside IR35 Hybrid working in Warwickshire Senior Design Engineer (Driveline and Transmissions) for a contract position. Proven Mechanical Design experience on Automotive Transmission and Driveline Components is essential. Key Responsibilities: Designing mechanical components through concept, definitive, and detail design phases. Conducting detailed mechanical design work including 3D modelling, basic stress calculations, FMEA's, 2D layouts, 2D detailing, and tolerance stacks. Agreeing design approaches with the project Chief or Lead Designer. Creating 2D drawings for manufacture or purchase, assembly drawings, and bills of materials. Ensuring design meets system and component specifications, along with fit and function within other systems. Collaborating with manufacturing and process engineers to ensure products are designed for manufacture and assembly. Reporting progress on assigned tasks to the project management teams, chief designer, or engineering...
IR35 Status:
Outside IR35

CV-Library Warwickshire, UK Contractor
CL
Jul 31, 2026  
Senior / Principal C&I Engineer
Senior / Principal C&I Engineer – Contract Location: West Wales This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy, and Hydrogen sectors. TUV Certified status would be a bonus, though not essential. Role & Responsibilities * Undertaking work providing Process Engineering support to a range of CAPEX and OPEX projects. * Performing safety specification and certification of safety instrumented systems. * Carry out SIL Verification using simplified equations. * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Development of C&I...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Aug 06, 2026  
Electrical Bias Maintenance Engineer
Electrical Bias Maintenance Engineer | £35.00 - £37.00p/h (outside IR35) Leeds Wakefield Selby Pontefract Bradford Are you an experienced Electrical Bias Maintenance Engineer with a strong background in fast-paced manufacturing, looking for a stable, long-term opportunity? Do you enjoy varied, hands-on fault-finding one day and planned maintenance the next? My client is one of the UK's leading and longest-established equipment manufacturers, working with customers across the country to deliver innovative, cost-effective and reliable packaging solutions. Backed by an experienced team and award-winning processes, they have built a reputation for quality and reliability that sets them apart in the sector. Take Ownership of Day-to-Day Maintenance Across the Site This is a varied role covering the full spread of maintenance activity across the site's semi-automatic packaging lines - from reactive breakdown response and fault-finding through to planned preventative maintenance (PPM)...
IR35 Status:
Outside IR35

CV-Library West Yorkshire, UK Contractor
CL
Aug 06, 2026  
Control Systems Engineer (Outside IR35)
Location: London (Central) Contract Length: 6 Months (minimum) Rate: £65 p/h (Outside IR35) Start Date: ASAP An exciting opportunity has arisen for an experienced Control Systems Engineer to join a leading systems integration team delivering automation solutions in the energy sector. You'll be responsible for developing and commissioning Siemens based control systems, supporting projects from software development through to site commissioning. This is an ideal opportunity for an engineer who enjoys technically challenging projects and is comfortable working both remotely and on customer sites. Key Responsibilities * Design and develop PLC software using Siemens TIA Portal * Configure Siemens HMI/SCADA systems where required * Produce and modify functional design specifications * Carry out software testing, FAT and SAT activities * Diagnose and resolve technical issues during commissioning * Ensure projects are delivered safely, on time and to specification Expereince...
IR35 Status:
Outside IR35

CV-Library Maidstone, Kent Contractor
CL
Aug 06, 2026  
Control Systems Engineer (Outside IR35)
Location: Birmingham Contract Length: 6 Months (minimum) Rate: £60 p/h (Outside IR35) Start Date: ASAP An exciting opportunity has arisen for an experienced Control Systems Engineer to join a leading systems integration team delivering automation solutions in the energy sector. You'll be responsible for developing and commissioning Siemens based control systems, supporting projects from software development through to site commissioning. This is an ideal opportunity for an engineer who enjoys technically challenging projects and is comfortable working both remotely and on customer sites. Key Responsibilities: * Design and develop PLC software using Siemens TIA Portal * Configure Siemens HMI/SCADA systems where required * Produce and modify functional design specifications * Carry out software testing, FAT and SAT activities * Diagnose and resolve technical issues during commissioning * Ensure projects are delivered safely, on time and to specification Expereince...
IR35 Status:
Outside IR35

CV-Library Stockport, Greater Manchester Contractor
CL
Aug 06, 2026  
Network & Systems Integration Engineer - Outside IR35
Location: Basildon (3-5 days per week onsite) Duration: 6 month contract Rate: £73.40ph LTD (Outside IR35) Role details: Our client, a leader in the Defence & Security sector, is currently seeking a Network & Systems Integration Engineer to join their team in Basildon on a contractual basis. Key Responsibilities: Creating Network Architecture for the Lab environment Maintaining Lab infrastructure and development areas Configuring systems according to Lead Systems Engineer requirements Supporting Trials Site activities Job Requirements: We are looking for a candidate with recent experience of TSN (Time Sensitive Networking), DDS and VLAN Configuration. Experience in IT Network and its applications within Defence & Security Understanding of the Open Systems Interconnection Model Understanding of IPv4 Addressing Understanding of Virtual Local Area Network configuration Understanding of Network Implementation and Deployment Understanding of Network Architecture...
IR35 Status:
Outside IR35

CV-Library Basildon, Essex Contractor
CL
Aug 05, 2026  
Firmware Engineer
Contract Details Job Title: Firmware Engineer Duration: 8 months (initially) Location: Hybrid (3 days per week), Reading Outside IR35 £50-£60 per hour SC eligibility required Key Responsibilities Design and develop embedded firmware for advanced radar systems, supporting the full product lifecycle from concept through to integration, verification and production. Develop firmware for FPGA-based and embedded processing platforms using C/C++ and Verilog, interfacing with high-speed digital electronics, sensors and communication protocols. Perform firmware integration, debugging and verification using laboratory equipment including oscilloscopes, logic analysers, JTAG debuggers and protocol analysers, ensuring compliance with system and performance requirements. Collaborate with systems, hardware, software and test engineers to investigate issues, perform root cause analysis and deliver robust firmware solutions for mission-critical defence applications. Essential Skills...
IR35 Status:
Outside IR35

CV-Library Reading, Berkshire Contractor
CL
Aug 05, 2026  
Principal Mechanical Enigneer
Principal Mechanical Engineer - Water Sector St Albans: Hybrid (3 Days Office) Contract: £55-65p/h (Outside IR35) Advance TRS are supporting a rapidly growing consultancy in their search for a Principal Mechanical Engineer. Joining a newly formed London business unit, you'll have the unique opportunity to help build a team from the ground up, influence how projects are delivered, and play a significant role in the future growth of the business within the UK water market. You'll lead the mechanical design of clean water and wastewater projects, producing high-quality engineering solutions while mentoring junior engineers and coordinating multidisciplinary design teams. Key Responsibilities: * Deliver mechanical design solutions for water and wastewater projects * Produce calculations, reports, specifications and design drawings * Lead and review work from junior engineers and CAD technicians * Coordinate with suppliers, manufacturers and subcontract design teams * Ensure...
IR35 Status:
Outside IR35

CV-Library Hertfordshire, UK Contractor
CL
Aug 02, 2026  
Fire & Security Service Engineer - Bath & Gloucestershire
Multiskilled Fire & Security Service Engineer (Subcontract) – Bath & Gloucestershire £33.00 - £34.00 per Hour Outside IR35 Weekly Pay Every Friday 6-Month Contract Immediate Start Available We are currently seeking an experienced Multiskilled Fire & Security Service Engineer to join an ongoing subcontract project covering Bath, Gloucestershire and the surrounding areas. This is an excellent opportunity for an experienced engineer looking for long-term contract work with a well-established fire and security contractor, working across a varied portfolio of commercial, industrial and public sector sites. Scope of Work The successful engineer will be responsible for: Servicing and maintaining fire alarm, intruder alarm, CCTV and access control systems Fault finding, diagnostics and reactive repairs Small remedial works and system upgrades Carrying out planned preventative maintenance (PPM) Completing service reports and relevant documentation accurately...
IR35 Status:
Outside IR35

CV-Library Gloucester, UK Contractor
CL
Aug 02, 2026  
Systems Engineer - Steering Systems
Contract position Outside IR35 Hybrid working Proven Steering Systems development experience in Automotive, ideally Defence Vehicles. Our Client, a leading player in the automotive sector, is seeking a Systems Engineer - Steering Systems on a contract basis to contribute to the development, integration, and validation of steering systems across a variety of vehicle engineering projects. These projects include both defence and commercial platforms with powertrains ranging from conventional to electrified systems. Key Responsibilities: Technical Contribution Support the design, development, and integration of steering systems (mechanical and electric power steering). Develop system requirements, specifications, and performance targets. Ensure designs comply with applicable standards, regulations, and customer requirements. Maintain technical integrity and system performance throughout the lifecycle. Project Execution Deliver steering system engineering activities from...
IR35 Status:
Outside IR35

CV-Library Warwickshire, UK Contractor
CL
Aug 02, 2026  
System Owner - Vehicle Sub-System
Contract position Outside IR35 Hybrid working Our client, a leader in the automotive industry, is currently seeking a dynamic and experienced System Owner for Vehicle Sub-Systems on a contract basis. This role is pivotal in leading the design, development, and delivery of assigned systems and sub-systems, ensuring compliance with technical, safety, regulatory, and certification requirements. Key Responsibilities: Technical Leadership Act as the system/sub-system lead for assigned projects, ensuring technical integrity and compliance. Interpret and apply technical, safety, regulatory, and certification requirements across the system lifecycle. Support requirements decomposition and validation to ensure complete traceability from customer needs to system-level deliverables. Project Execution Manage and coordinate a cross-functional team of engineers through the full product development lifecycle. Coordinate with suppliers and external partners contributing to development....
IR35 Status:
Outside IR35

CV-Library Warwickshire, UK Contractor
CL
Aug 01, 2026  
Site Agent - Wastewater / Civils (LTD - OUTSIDE IR35)
Location: Reigate, Surrey (UK) IR35 Status: Outside IR35 (Pending satisfactory QDOS Assessment) Duration: 12 Months+ (Long-term framework assignment) Sector: Tier 1 Civil Engineering (Water / Wastewater Infrastructure) About the Role We are seeking an experienced, contract Site Agent to lead the successful execution of major civil engineering packages on a long-term Water framework in Reigate. Reporting directly to the Project Manager, you will operate as the primary technical and operational lead for your section of works, managing site teams, programming, and commercial reporting. You will bring proven experience managing multi-disciplinary civil works with complex interfaces This is a contract role with minimum 12-18month duration - Paid LTD upon successful IR35 assessment Key Responsibilities Package Delivery & Autonomy: Manage and deliver large-scale civil infrastructure packages from inception to handover, supporting and reporting directly to the Project Manager....
IR35 Status:
Outside IR35

CV-Library Reigate, Surrey Contractor
CL
Aug 01, 2026  
M&E Surveyor
Are you ready to put your engineering expertise to work on a rewarding contract opportunity? A leading organisation within the construction and engineering sector is seeking an M&E Surveyor in Croydon to support a programme of mechanical and electrical asset inspections. This short-term, Outside IR35 contract is ideal for engineers with a mechanical, electrical, plumbing or HVAC background who are looking to apply their technical knowledge within a growing sector. The Role As the M&E Surveyor, you'll: Conduct visual inspections of mechanical and electrical building services assets. Assess the condition of M&E systems and accurately record findings. Collaborate with project teams to ensure inspections are completed in line with project requirements and industry standards. Collect and upload asset data using the client's software application. Identify potential defects or maintenance requirements across building services equipment. Produce accurate records to...
IR35 Status:
Outside IR35

CV-Library Croydon, UK Contractor
CL
Jul 31, 2026  
Senior Electrical Engineer
Location: West Wales This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy and Nuclear sectors. Our client will consider applicants for either a staff or contract position – for a contractor the role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be able to size equipment and perform cable sizing calculations * Participation...
IR35 Status:
Outside IR35

CV-Library Burton Ferry, Pembrokeshire Contractor
CL
Jul 31, 2026  
Senior Electrical Engineer (hybrid working)
Senior Electrical Engineer – Contract – Remote Location: Remote / Hybrid Location: Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. Our client can accommodate a hybrid working pattern with alternate weeks wfh / in the office in West Wales. The role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be able to...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
May 12, 2026  
BMS Service Engineer
BMS Service Engineer Contract 3 – 6 months London & M25 We are offering an accomplished BMS Service Engineer £38 - 45 per hour (outside IR35) to join a well-established Controls company on a contract to cover London and the M25 area. This is an initial 3 – 6 month contract with potential to extend further. The BMS Service Engineer position:- As a BMS Service Engineer, you will need to demonstrate exceptional technical understanding of BMS, in particular Trend control systems.   Your duties will include carrying out service and maintenance on BMS Control systems along with small works.  You will be expected to work independently using your own skill and initiative as well as part of a larger team of engineers when required. Key skills of the BMS Service Engineer:- Exceptional technical knowledge and experience of the BMS sector. Proven experience of carrying out servicing and small works on BMS Controls Systems. Qualifications and experience with Trend control systems....
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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