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Contractor 38
Engineering Outside IR35 Brentwood

38 jobs found in Brentwood

CL
Apr 24, 2026  
Manufacturing Engineer
Contract Manufacturing Engineer Contract - 52 weeks - £47.84 per hour (umbrella) The Opportunity We are seeking a Contract Manufacturing Engineer to join a leading organisation in the defence and advanced electronics sector. You will support the development and production of mission-critical systems across multiple domains, working within cross-functional project teams. Key Responsibilities Develop and implement manufacturing processes to support new product introduction Support manufacturing governance, planning, and lifecycle reviews Analyse production data to inform decision-making and improve efficiency Resolve production issues and support shop floor activities Drive continuous improvement in processes, capacity, and workflow Ensure product quality through validation and process control Maintain manufacturing documentation and data Contribute to problem-solving activities (e.g. 8D) Mentor junior team members and promote best practices Required Skills & Experience...
IR35 Status:
Outside IR35

CV-Library Dagenham, London Contractor
CL
Apr 23, 2026  
Contract Mechanical Technician
Redline has a fantastic opportunity for a Contact Mechanical Technician based in Colchester, Essex. This role has an indicative OUTSIDE IR35 determination therefore we can accept candidates who would like to operate through their own PSC. You'll be joining a global leader in the Electronics industry working at their R&D hub on products worth up to $1 million. You will be working on assembling and modifying machines to customer specifications, working to tight tolerances and within a high precision engineering environment. Key Skills Required - Contract Mechanical Technician based in Colchester, Essex: - Experience in Mechanical Assembly - Experience working in an engineering environment - Experience with mechanisms and movements For more information or to apply for the Contract Mechanical Technician opportunity based in Colchester, Essex, please contact Jack Kelly - (url removed) / (phone number removed) quoting reference JWK1071
IR35 Status:
Outside IR35

CV-Library Essex, UK Contractor
CL
Apr 21, 2026  
Lead Piping Designer
Lead Piping Designer - Addison Project, Harlow For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Job Type: Contract Outside IR35 Start: Spring 2026 Location: Harlow, Essex with travel to site in Home Countries Workscpe Addison Project Plc are seeking...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
Apr 21, 2026  
Senior Process Engineer
Senior Process Engineer- Addison Project, Harlow For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Role: Senior Process Engineer (Contract – Outside IR35) Location: Harlow Contract: 12 months Start Date: Spring 2026 Workscope Addison Project Plc invites...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
Apr 21, 2026  
Civil & Structural Design Engineer
Civil & Structural Design Engineer, Harlow, Contract For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Role: Civil & Structural Design Engineer Location: Harlow Start Date: Spring 2026 Status: 6 months, Outside IR35 Workscope Addison Project Plc are...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
Apr 21, 2026  
Project Manager
Role: Project Manager Status: Contract, 12 months outside IR35 Location: Harlow Addison Project Plc are seeking a PSC contractor to provide Project Management services to support a project in Greater London. Workscope: * To Provide engineering design-based Project Management services from Front End through detailed design. * Full responsibility for the delivery to install a new process integrated into an operational manufacturing plant. Services to be provided: * Complete project management services from Front End through detailed design * Day-to-day client interface and stakeholder management * Provide guidance to client teams and the construction manager * Plan and control scope, schedule, cost and risk * Coordinate multi-discipline design (Process, Mech, EC&I, Civils/Struct) and constructability reviews. * Lead all on site activites, proactive client, design and construction team communication is key for this role *...
IR35 Status:
Outside IR35

CV-Library CM20, Harlow, Essex Contractor
CL
Apr 25, 2026  
Quantity Surveyor
Are you a Rail Quantity Surveyor with experience working on High Speed projects?   Do you have experience working on NEC4 contracts?   This is an excellent opportunity for a Quantity Surveyor to join a rail contractor on the delivery of high speed projects. The ideal candidate will have experience managing the fully life cycle of projects within a framework.   Rate: £400/day, Outside IR35 Location: Sidcup, potential hybrid working Duration: 6 month, rolling contract   Due to growth, my client is looking to add a Quantity Surveyor to their team to manage the commercial aspects of an exclusive 8-year framework as the sole supplier for all building and renewals work on High Speed 1. This is a massive opportunity to join a dedicated team at the very beginning of a landmark project.   Unlike typical maintenance roles, this position is heavily focused on projects, giving you the chance to manage the full life cycle of schemes valued in the millions. You won't be a small cog...
IR35 Status:
Outside IR35

CV-Library New Eltham, London, UK Contractor
CL
Apr 24, 2026  
HMI PLC-SCADA AUTOMATION ROLES X6
All these roles are OUTSIDE IR35 and Expenses are payable. ROLE #1 An experienced automation engineer with a marine background, who can read P&IDs and configure graphics and datapoints using InkScape or similar. • Experience with InkScape • Proven ability with WINMON would be desirable. • Knowledge of HMI design. • Familiarity with SCADA or DCS control systems. • Familiarity with P&ID drawings. • Experience of structured programming languages an advantage e.g. C, C++, Structured Text. • Competent in computer technology and Ethernet network. • Ability to work well within a team whilst at the same time demonstrating initiative and the ability to work without supervision. • Ability to interpret complex documents • Low level programming is a requirement, along with network experience. ROLE #2 Deep understanding of programming languages such as C/C++, Structured Text (ST), etc. and must be open to learn the WINMON language. The automation coder should ideally have experience...
IR35 Status:
Outside IR35

CV-Library Heybridge, Maldon CM9, UK Contractor
CL
Apr 25, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer – Contract – Central London – Outside IR35 – 6 Months An exciting opportunity has arisen for an experienced Senior Mechanical Design Engineer to join a well-established design consultancy renowned for delivering high-quality MEP engineering solutions. This is a 6-month contract role, operating outside IR35, based in Central London. Due to a growing project portfolio, we are actively seeking a skilled engineer to support the delivery of a large scale commercial office project. The Role: Develop detailed mechanical designs in line with client briefs Perform mechanical building services calculations Assist in producing mechanical specifications and schedules Conduct feasibility studies and technical evaluations Provide expert technical support and advice across the project lifecycle Prepare technical statements and reports as required Essential Requirements: Proven background in HVAC design and mechanical building services Strong...
IR35 Status:
Outside IR35

CV-Library City of London, London, UK Contractor
CL
Apr 29, 2026  
Senior Civil Engineer
Contract Senior Civil Engineer (Building Drainage / Part H) 📍 London | Hybrid / Flexible 💰 £45–£55 per hour (Outside IR35) 📅 12-Month Contract A leading, design-led engineering consultancy, is looking to appoint an experienced Senior Civil Engineer on a long-term contract basis. This is a fantastic opportunity to work on a diverse portfolio of high-quality building-led projects across residential, commercial, and mixed-use developments. The Role You’ll play a key role in delivering building drainage and infrastructure design, working closely with structural teams, architects, and external stakeholders. Your focus will be on ensuring designs are fully compliant with Building Regulations Part H, from concept through to construction. Key Responsibilities Design of building drainage systems (foul & surface water) Ensure compliance with Part H Building Regulations Production of drainage strategies and detailed design packages Coordination with architects and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 29, 2026  
Mechanical Engineer
Job Title: Intermediate/Senior Mechanical Engineer - 12 Month Contract or Permanent Location: Mostly remote (occasional travel to London) Contract Rate: £45-£53 per hour outside IR35 or Permanent Salary: £50-£60k About the Role: We are seeking an experienced Mechanical Engineer to join a dynamic team focused on innovative engineering solutions in the water and environmental sector. This role offers the flexibility of primarily remote work, with occasional visits to the London office, and provides the opportunity to work on cutting-edge projects in a collaborative environment. Key Responsibilities: Design, develop, and optimise mechanical systems and components. Prepare detailed engineering drawings, specifications, and documentation. Work closely with project teams to deliver solutions from concept through to installation and commissioning. Support project planning, risk assessment, and troubleshooting mechanical issues. Ensure compliance with relevant industry standards,...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 29, 2026  
Senior Quantity Surveyor
Job Title: Senior Quantity Surveyor (Freelance) Location: Central London & Stansted Airport Contract Type: Freelance Contract (Outside IR35) Rate: £400.00 – £450.00 per day Company Overview We are recruiting for experienced Senior Quantity Surveyors to support the delivery of works within an Asset Intelligence team for a leading Tier 1 contractor. These roles sit across two key projects within high-profile environments, offering exposure to complex M&E, security, and infrastructure-related works. This is an excellent opportunity to join a well-established team delivering critical upgrade and maintenance projects across major UK assets. The Role As a Senior Quantity Surveyor, you will play a key role in the commercial management of projects across two locations: Central London and Stansted Airport. This is a hands-on role requiring strong NEC contract knowledge and the ability to operate within a Tier 1 environment. You will be responsible for managing commercial...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 26, 2026  
BMS Commissioning Engineer - Trend OR Tridium
Ready for your next BMS contract? If you're a skilled BMS Commissioning Engineer with strong Trend or Tridium experience, I'm working with a well-respected industry leader on a range of exciting commercial upgrade and installation projects across London. This is a fantastic opportunity to get stuck into varied, technically engaging work with a company that values expertise and delivers high-quality projects. Role: BMS Commissioning Engineer 6-Month Contract (potential to extend) Variety of new installs and upgrade projects Outside IR35 Daily rate: £350 - £400 per day DOE Central London You'll be involved in: Full BMS commissioning across multiple sites Main Plant Commissioning to DesOps Secondary Commissioning High-level integration (BACnet & Modbus) Metering, point-to-point and point-to-graphic Functional testing and software modifications Client Witnessing Working with Trend (IQ4/5's) or Tridium (iSMA/JACE) What we're looking for: Proven BMS commissioning...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 26, 2026  
BMS Commissioning Engineer - EcoStruxure/Struxureware
Ready for your next BMS contract? If you're an experienced BMS Commissioning Engineer looking for your next exciting role, I've got a fantastic opportunity based in the heart of London. This is a long-term project with a forward-thinking client, offering interesting, varied work and the chance to make a real impact. Role: BMS Commissioning Engineer 📅 12-Month Contract (with strong potential to extend) 💼 Outside IR35 💷 Daily rate: DOE 📍 Central London You'll be involved in: Hands-on BMS commissioning across high-profile projects Integration work via BACnet & Modbus New installations from start to finish Point-to-Point / Point-to-Graphic Software modifications and metering Functional testing Working extensively with Schneider EcoStruxure What we're looking for: Strong commissioning background within BMS Proven Schneider EcoStruxure experience Confident in delivering quality work independently and as part of a team Experience Commissioning Main Plant (FCU's,...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 26, 2026  
BMS Service Engineer - Trend OR Tridium
Are you looking for your next BMS Service contract? I'm currently partnering with a growing, medium-sized controls specialist in London who are looking for an experienced BMS Service Engineer to join them on a new contract. This role will give you a varied workload - from planned maintenance (PPM) to small works commissioning - all within the London area. Role: BMS Service Engineer 📅 6-Month Contract (with extension potential) 🚀 Immediate start available 💼 Outside IR35 💷 Daily Rate: DOE 📍 Based in London What you'll be doing: Planned Preventative Maintenance (PPM) on BMS systems Fault finding, diagnostics, and remedials Carrying out upgrades and small works commissioning Working with Trend and/or Tridium systems Ensuring systems are optimised and operating efficiently What we're looking for: Proven BMS service/maintenance background Strong fault-finding and problem-solving skills Hands-on commissioning experience for small works Trend and/or Tridium expertise If...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 25, 2026  
Civil Design Engineer
Civil Design Engineer | Water Sector Contract: Long‑term, Outside IR35 Location: London (Flexible Hybrid) Our client in water is seeking an experienced Civil Design Engineer to support the design and delivery of infrastructure and non‑infrastructure projects across a broad programme of work. This long‑term contract offers the opportunity to play a key role in developing, reviewing, and coordinating civil engineering designs within a fast‑paced, essential services environment. Hybrid working is available, with regular presence required at the London office.  Key Responsibilities Produce, review, and develop civil engineering designs for water and wastewater infrastructure Prepare design calculations, technical drawings, and specifications in line with industry and regulatory standards Support feasibility assessments, optioneering, and early‑stage technical input Work collaboratively with multidisciplinary teams including process, mechanical, electrical, and delivery functions...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 25, 2026  
Senior Civil Engineer
CONTRACT SENIOR CIVIL ENGINEER – LONDON 🚧 📍 London (Hybrid Working) 💷 £40–£48 per hour – Outside IR35 📅 Long-term contract opportunity We’re working with a well-established civil engineering consultancy that is looking to bring in an experienced Senior Civil Engineer to support a strong pipeline of residential and commercial development projects. This is a great opportunity for someone who enjoys hands-on design work and wants flexibility with hybrid working. 🔧 The Role You’ll be involved in delivering infrastructure and drainage design across a range of development schemes, including: • Flood Risk Assessments • Drainage Schemes • SuDS Strategies You’ll play a key role in supporting project delivery from early feasibility through to detailed design and approvals. 💻 Software The team currently uses: • Civils 3D • Site 3D • InfoDrainage Experience in these is preferred, but not essential — strong drainage/infrastructure design experience is the priority. ✅ What...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 25, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Central London 6-month subcontract contract | 40 hours per week | Weekly pay | Outside IR35 Schneider EBO commissioning work, live project, existing team, start ASAP If you are strongest when a project reaches the sharp end, this could suit you well. You’ll join an existing team on a Central London project and take on full BMS commissioning work, from installation testing and network testing through to software loading, full functional testing, and proving operation to the end user team. This is a subcontract role for someone who knows their way around Schneider StruxureWare and EBO, can get through commissioning properly, and does not need hand-holding to add value on site. You’ll be joining a leading BMS company with a strong project delivery history, which matters when you want a project that is properly structured and worth putting your name to. You’ll also be stepping into an existing project team, so this is not a case of being dropped into...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 25, 2026  
Senior Design Engineer – MedTech (Outside IR35)
Contract Design Engineer – MedTech (Outside IR35) ARCA is supporting an innovative MedTech organisation developing next-generation medical devices, looking to bring in an experienced Senior Design Engineer to support a key development phase. This is a hands-on role across the full product lifecycle – from concept through to design refinement and validation, within a regulated environment. The role: * Mechanical design and development of medical devices * Creating and iterating CAD models and technical drawings * Supporting design verification & validation (DV&V) * Collaborating with R&D, QA/RA, and manufacturing teams * Contributing to design documentation in line with regulatory standards Experience: * Design Engineer within MedTech / medical devices * Strong CAD capability (SolidWorks or similar) * Experience working within ISO 13485 environments * Understanding of design controls, risk (ISO 14971) * Familiarity with verification...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 23, 2026  
Salesforce Engineer | £400 – £450 | Outside IR35 | 6 Months | Remote First
Salesforce Engineer | £400 – £450 | Outside IR35 | 6 Months | Remote First   We’re recruiting for an experienced Salesforce Engineer for a 6-Month contract role. This position will play a key role in leading Salesforce refactoring, modernising backend systems, and driving modern engineering practices across our clients platform. Offering £400 - £450 per day, this role is determined as Outside IR35 and may require occasional travel to the office most local to you.   Key Requirements Take ownership of large‑scale Salesforce Apex refactoring and backend process improvements Enhance Salesforce integration architecture, reliability, CI/CD, and automated testing Drive modern engineering practices and support AI‑assisted development tools Resolve technical debt, improve performance, and ensure scalable architecture Requires strong Salesforce Apex, Java, CI/CD, integrations, automation, and refactoring experience Previous experience working in Fintech or regulated environments is...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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