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Engineering Outside IR35 science

16 science jobs found

CL
Aug 08, 2026  
BMS Commissioning Engineer
I’m currently recruiting for a BMS Commissioning Engineer to join a well-established engineering company supporting a major long-term project based around the St Austell area. This is an outside IR35 contract with work expected to continue through until 2028, making it a strong option for contractors looking for long-term, stable work rather than short-term project moves. The company delivers BMS design, installation, commissioning and maintenance across a range of large-scale projects, working with blue-chip clients in sectors including data centres, aviation, life sciences and commercial buildings. They’re looking for an experienced BMS Commissioning Engineer with strong knowledge of Schneider EcoStruxure. You’ll ideally be confident writing software from scratch, carrying out full commissioning activities, and have solid industry experience within the BMS industry. Engineers don't need to be based in the area, so if you're happy travelling or staying away during the week,...
IR35 Status:
Outside IR35

CV-Library St Austell, Cornwall Contractor
CL
Aug 07, 2026  
EC&I Engineer
Senior EC&I Engineer Contract | UK | Outside IR35 / Ltd Company Contractors Considered Our client is looking to appoint an experienced Senior EC&I Engineer on a contract basis to support a programme of work surveying industrial gas distribution systems across multiple UK sites and producing high-quality engineering documentation. This is an excellent opportunity for an experienced engineer with a strong background in industrial automation, PLC systems and EC&I design who enjoys a mix of office-based engineering and occasional site work. The Role Working as part of an experienced engineering team, you will undertake site surveys before producing accurate as-built engineering documentation for existing control and automation systems. Typical deliverables will include: I/O Schedules System & Network Architecture Drawings Cause & Effect Diagrams High-Level Control Narratives Engineering documentation updates and verificationThe role is predominantly...
IR35 Status:
Outside IR35

CV-Library Stockton-on-Tees, UK Contractor
CL
Aug 09, 2026  
Senior / Principal Civil Engineer
Job Title: Senior / Principal Civil Engineer Salary: Dependent on experience Location: St Albans (Hybrid - minimum 3 days office-based) Type: Permanent or Contract (Outside IR35 available) - Hybrid About the Role: Our client is seeking experienced Senior and Principal Civil Engineers to join a multidisciplinary design team delivering projects across the regulated water sector. These opportunities are suited to engineers with strong design experience within water and wastewater who enjoy solving complex engineering problems, developing practical solutions and contributing to the successful delivery of projects. Depending on experience, you will take ownership of technical delivery, support multidisciplinary design teams and contribute to maintaining high standards of engineering quality and compliance. Principal-level candidates will also provide technical leadership and mentoring support across the team. Working closely with senior management and project teams, you will...
IR35 Status:
Outside IR35

CV-Library Hemel Hempstead, Hertfordshire Contractor
CL
Aug 09, 2026  
TP141 Commissioning Engineer (Substations)
TP141 Commissioning Engineer (Substations) Outside IR35 | Competitive Day Rate | Long-Term Projects (2 Years) East Anglia & Oxfordshire Are you a TP141 Commissioning Engineer looking for your next long-term contract on major National Grid transmission projects? We are recruiting experienced TP141 Commissioning Engineers to support the delivery of two major substation projects in East Anglia and Oxfordshire, each offering approximately two years of work. This company is a specialist high-voltage engineering company delivering end-to-end power system solutions across the transmission and distribution sectors. Its expertise includes system design, manufacturing, installation, testing, commissioning and maintenance of HV substations and protection & control systems, supporting utility, renewable energy and critical infrastructure projects throughout the UK and internationally. Working on a subcontract basis, you will play a key role in the safe commissioning and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Aug 09, 2026  
TP141 Commissioning Engineer (Substations)
TP141 Commissioning Engineer (Substations) Outside IR35 | Competitive Day Rate | Long-Term Projects (2 Years) East Anglia & Oxfordshire Are you a TP141 Commissioning Engineer looking for your next long-term contract on major National Grid transmission projects? We are recruiting experienced TP141 Commissioning Engineers to support the delivery of two major substation projects in East Anglia and Oxfordshire, each offering approximately two years of work. This company is a specialist high-voltage engineering company delivering end-to-end power system solutions across the transmission and distribution sectors. Its expertise includes system design, manufacturing, installation, testing, commissioning and maintenance of HV substations and protection & control systems, supporting utility, renewable energy and critical infrastructure projects throughout the UK and internationally. Working on a subcontract basis, you will play a key role in the safe commissioning and...
IR35 Status:
Outside IR35

CV-Library Birmingham, West Midlands Contractor
CL
Aug 09, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Location: Glasgow Rate: £500 per day Limited Outside IR35 Contract: 18 Months Positions Available: 2 We are currently recruiting for two experienced BMS Commissioning Engineers to join a major project in Glasgow on a long-term 18-month contract. The successful candidates will have proven experience commissioning Trend Controls and/or Niagara-based Building Management Systems and will be responsible for the testing, commissioning and handover of BMS installations. Key Responsibilities * Commissioning Trend and Niagara/Distech BMS systems * Point-to-point and I/O testing * Functional testing and validation of control strategies * Fault finding and resolution of BMS and HVAC issues * BACnet and Modbus integration and testing * Configuration of alarms, trends, graphics and schedules * Witness testing and client demonstrations * Production of commissioning documentation and handover packs Requirements * Previous BMS commissioning...
IR35 Status:
Outside IR35

CV-Library Glasgow, Glasgow City Contractor
CL
Aug 08, 2026  
Project Manager - York
Project Manager – Utility Scale Solar (Up to 50MW) | Outside IR35 Location: York (Site-Based) Job Type: Contract (Outside IR35) Sector: Renewable Energy / Utility Scale Solar We're recruiting on behalf of a leading renewable energy contractor for an experienced Project Manager to oversee the delivery of utility-scale solar PV projects across the UK, with schemes up to 50MW. This is an excellent opportunity to join a business with a strong pipeline of work and play a key role in delivering large-scale renewable energy infrastructure. The Role As Project Manager, you'll take full responsibility for the successful delivery of utility-scale solar projects, ensuring works are completed safely, on programme and within budget. You'll manage site teams, subcontractors and stakeholders while ensuring the project is delivered to the highest quality standards. Key Responsibilities Lead the delivery of utility-scale solar PV projects up to 50MW. Manage project programmes, budgets and...
IR35 Status:
Outside IR35

CV-Library York, UK Contractor
CL
Aug 07, 2026  
BMS Engineer
BMS Project Engineer (Contract) £300–£400 per day | 3–4 Month Initial Contract | South East | Immediate Start We're working with a specialist building controls contractor looking to appoint an experienced BMS Project Engineer to support the delivery of multiple live projects across the South East. This is an excellent opportunity for an engineer with strong commissioning and software experience who can hit the ground running. The Role * Commission BMS control systems across multiple projects * Carry out software engineering and system modifications * Programme and commission Trend systems * Engineer and configure Tridium (Niagara) platforms * Complete BACnet and Modbus integrations * Support project delivery from commissioning through to handover * Assist with final termination/make-off of control panel cabling where required * Work across customer sites throughout the South East Requirements * Proven experience as a BMS Project or Commissioning...
IR35 Status:
Outside IR35

CV-Library Guildford, Surrey Contractor
CL
Aug 07, 2026  
Senior Design Civil Engineer
Senior Design Civil Engineer – Water  Location: St Albans (Hybrid) Contract Type: Long-term Contract (Outside IR35) Our client, a specialist engineering design consultancy within the water sector, is seeking an experienced Senior Design Civil Engineer to support the delivery of water and wastewater infrastructure projects. This is an excellent opportunity to join a growing team, working across multidisciplinary projects from concept through to detailed design. You will be responsible for developing practical, efficient, and compliant engineering solutions while providing technical guidance to junior team members and collaborating with clients and stakeholders. Key Responsibilities Produce engineering design deliverables that meet safety, quality, and regulatory requirements. Develop practical solutions from project scopes, technical assessments, and site investigations. Communicate technical solutions effectively with clients, stakeholders, and project teams. Support and mentor...
IR35 Status:
Outside IR35

CV-Library St Albans, UK Contractor
CL
Aug 07, 2026  
OHL Project Manager
OHL Project Manager – Lancaster – 6 Month Contract – Outside IR35 Location: Lancaster (Hybrid/Site-Based) Contract Length: 6 Months Status: Outside IR35 Milford RES is recruiting on behalf of a leading infrastructure and utilities organisation seeking an experienced Overhead Line (OHL) Project Manager to support the successful delivery of overhead line projects across the North West. This is an excellent opportunity for a proven Project Manager with strong OHL experience to join a busy programme of works on an initial 6-month contract basis. Key Responsibilities * Lead the end-to-end delivery of OHL projects up to 33kV. * Manage project scope, programme, budget, and resource requirements. * Coordinate internal teams, subcontractors, and key stakeholders. * Ensure projects are delivered safely, on time, and within budget. * Oversee project planning, risk management, and reporting activities. * Drive compliance with industry regulations, quality standards, and...
IR35 Status:
Outside IR35

CV-Library Lancaster, Lancashire Contractor
CL
Aug 05, 2026  
Supplier Quality Engineers
Infinity Employment are seeking Supplier Quality Engineers to work on behalf of our industry leading client, specialising in providing engineering solutions to various sectors. The Supplier Quality Engineer is responsible for ensuring suppliers consistently meet quality, technical, and delivery requirements, while driving continuous improvement across the supply base. The role acts as the quality interface between the business and its suppliers, ensuring effective supplier selection, approval, performance monitoring, issue resolution, and development. This contract will be based in Worcestershire for 3- 6 Months, highly likely to be extended. For the right candidates, more contracts will follow. £25-£30 p/h LTD (Outside IR35) * Mon – Friday 40 hours based on site. * Pay – £25– £30 LTD (Outside IR35) * Travel may be required - Expenses Paid Key Responsibilities * Conduct supplier audits, assessments, and supplier approval activities * Manage supplier non-conformance...
IR35 Status:
Outside IR35

CV-Library Worcester, Worcestershire Contractor
CL
Aug 03, 2026  
Fire & Security Service Engineer - Student Accommodation Project - NW
Fire & Security Service Engineer (Subcontract) – Manchester £33.00 - £35.00 per Hour Outside IR35 Weekly Pay Every Friday Long-Term Contract Immediate Start Available We are currently seeking an experienced Multiskilled Fire & Security Service Engineer to join a long-term student accommodation project based across Manchester. This is an excellent opportunity to secure consistent contract work with a well-established fire and security contractor. You’ll be working on a large student accommodation portfolio, carrying out planned and reactive maintenance across multiple occupied and newly refurbished sites. Scope of Work The successful engineer will be responsible for: Servicing and maintaining fire alarm, intruder alarm, CCTV, access control and intercom systems Fault finding, diagnostics and reactive repairs Planned preventative maintenance (PPM) Small remedial works and system upgrades Completing service reports and associated documentation Ensuring all work is...
IR35 Status:
Outside IR35

CV-Library Manchester, 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
Jul 30, 2026  
Pipe Fitter - Outside IR35
We are currently looking to recruit a time served pipe fitter for a very long-term role (permanent for right person) in they Stalybridge area. Experienced working on petrochemical sites/pharmaceutical/oil and gas sites is essential. This is not a commercial works. The candidate must be able to measure (point to point) to enable fabrication and understand pipework isometric drawings to enable fabricating/installing new pipework. He/she must be willing to liaise with the client and client operations (to enable permit signing and requests) as there may be periods, they will be on site alone. They must also be able to works as a team, as at other periods they will be working in small teams. They must have a full clean driving licence. This work is outside of IR35 so we can payroll limited Please send your CV to be considered for this work
IR35 Status:
Outside IR35

CV-Library Stalybridge, Borough of Tameside 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
CL
May 12, 2026  
BMS Service Engineer
We have a fantastic opportunity for a proficient BMS Service Engineer to join a well-established building controls business working on multiple contracts in London on a contract basis. This contract position offers an excellent hourly rate paid weekly ( outside IR35) Company Profile Our client is a household name in the world of BMS providing full turnkey solutions to the Building Energy Management sector since the late 90’s. With their wealth of expertise, they are able to secure projects of all size and type and deliver a best-in-class service from design all the way to end user handover. The Role of the BMS Service Engineer As a BMS Service Engineer you will be responsible for the pre-planned and reactive maintenance of Building Management Systems, predominantly across London. You will have in-depth knowledge of BMS (Building Management Systems) hardware including fault finding, wiring and networking. You will possess the knowledge and experience to be involved with small...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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