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Contractor 57
Outside IR35 Harlow engineering

57 engineering jobs found in Harlow

CL
Feb 14, 2026  
BMS Commissioning Engineering
BMS Commissioning Engineer, Tridium, Trend or Siemens Immediate start 4 - 6 month contract £300 - £360 per day Our client requires an accomplished BMS Commissioning Engineer with Tridium, Trend or Siemens Building Management Controls experience to join their team on either a project in London or a site in Hertforshire . There are several roles and projects currently available in: the City, East London and also in Hertfordshire, the best site would depend on your location and experience for each project. This is on a contract basis and will initially run for 4 to 6  months. To start immediately and is likely to be extended on a rolling basis.  This position could also be as the Lead Commissioning Engineer if you have the right experience and the rate would then reflect this. Key skills required:- Experienced in the Commissioning of Building Management Systems ( BMS ) Qualified and experienced with Tridium ,Trend or Siemens Control systems. CSCS Skill Card or equivalent is...
IR35 Status:
Outside IR35

CV-Library London, 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 16, 2026  
Senior Quantity Surveyor
Pinnacle are looking to speak to Senior Quantity Surveyors, with a strong background in rail infrastructure, specifically across civil engineering and signalling projects. This is an excellent opportunity for a commercially astute professional to support high-profile rail programmes, ensuring robust cost control, contract management, and project delivery. Key Responsibilities * Lead all commercial and contractual aspects of rail projects, from pre-contract through to final account * Prepare, review, and manage cost plans, budgets, and forecasts * Administer contracts (e.g. NEC forms) including compensation events and variations * Conduct value engineering and cost optimisation exercises * Manage subcontractor procurement, payments, and final accounts * Provide accurate and timely commercial reporting * Support project teams in risk management and mitigation strategies * Liaise with clients, stakeholders, and multidisciplinary teams Requirements *...
IR35 Status:
Outside IR35

CV-Library Hatfield, Hertfordshire Contractor
CL
Apr 26, 2026  
Employee Services Advisor
Pensions Specialist - 12 Month Contract Location: London (Hybrid - 2 days onsite, Tuesdays mandatory) Rate: £33.93 per hour (Umbrella) Start: ASAP Overview An opportunity has arisen for an experienced Pensions Specialist to support the delivery and transition of LGPS administration within a large public sector Shared Services environment. This role will focus on delivering high-quality pension administration and embedding sustainable processes for long-term service delivery. Key Responsibilities Deliver end-to-end LGPS administration (starters, leavers, retirements, estimates) Perform complex pension calculations, including CARE schemes Manage and resolve technical LGPS queries Review submissions to third-party administrators Work closely with Payroll and HR teams Produce and maintain process documentation and guidance Support stakeholder engagement and service transition into BAU Essential Requirements Recent, hands-on LGPS administration experience (essential) Strong...
IR35 Status:
Outside IR35

CV-Library Ilford, London Contractor
CL
Apr 30, 2026  
Interim Maintenance manager
Maintenance Manager (Interim) £450 - £500.00 daily rate plus expenses  (Outside IR35) 4 on 4 off DAYS Location: Commutable from Wembley, London The Profile We are seeking an experienced Maintenance Manager to ensure the smooth and efficient running of the Engineering Department on an interim basis. The successful candidate will have: This is a hands on engineering role ·A recognised engineering apprenticeship or relevant engineering qualification ·Proven experience within food manufacturing or a process-driven production environment ·Strong knowledge of Planned Preventative Maintenance (PPM) systems and implementation ·Experience managing quality standards and reducing waste ·A proactive, hands-on leadership style with a focus on continuous improvement ·Strong organisational and problem-solving skills The Role Reporting to the Head of Engineering, the Interim Maintenance Manager will be responsible for: ·Providing strong leadership and man-management to a small team...
IR35 Status:
Outside IR35

CV-Library Greater London, UK Contractor
CL
May 01, 2026  
Senior EC&I Engineer
Senior EC&I Engineer | North West (Hybrid Working) | up to £58ph | 4 day working week | Outside IR35 The Opportunity Are you at the point where you want more influence over engineering decisions, not just another delivery or design‑only contract? This is a senior EC&I contract working on complex, safety‑critical programmes within highly regulated environments such as defence and nuclear. The role operates at consultant level, giving real influence over technical decisions rather than being limited to a pure design function. You’d have ownership across the full lifecycle — providing technical leadership, assurance, integration support and problem‑solving through delivery — on an Outside IR35 basis with hybrid working and long‑term programme stability. It’s an opportunity to shape standards and outcomes, working closely with clients and multidisciplinary teams, rather than just executing instructions. What we’re looking for: Strong background in EC&I, control...
IR35 Status:
Outside IR35

CV-Library 42 Lyndale Ave, London NW2 2QA, UK Contractor
CL
Jan 21, 2026  
Senior Electrical Design Engineer
Great opportunity to work with this leading international Consulting Engineers who are looking to bring on board a driven and experienced Senior Electrical Design Engineer, Outside IR35, to be an active part of a specialist design team consultancy to work on a variety of Data Centre projects. Key Responsibilities:- Create electrical design drawings and specs for Data Centre Projects. Ensure designs meet all standards and regulations. Support sustainable design and use of innovative tech Work closely with colleagues, clients, architects, and contractors.. Manage project deadlines, budgets, and deliverables. About you: You should hold Degree (or historic equivalent) in Electrical Engineering or related field.- Should have extensive experience in Mission Critical design and building services design, specifically on data centres.- Skilled in Amtech, and Dialux/Relux, with AutoCAD and Revit proficiency being beneficial. Sound knowledge of British Standards and building...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
May 02, 2026  
Senior Civil Engineer
A well-established, design-led civil engineering consultancy is looking to appoint an experienced Contract Senior Civil Engineer on a long-term, Outside IR35 basis. This is a fully remote role with a strong pipeline of secured work across commercial, industrial and data centre developments. The Role You’ll take ownership of infrastructure packages from concept through detailed design, with a particular focus on: Detailed levels strategy Surface & foul drainage design Drainage slope design and optimisation External works coordination Technical delivery for planning and construction stages Projects include large commercial schemes, industrial developments and major data centre infrastructure. Software MicroDrainage (essential) What We’re Looking For Proven UK development infrastructure experience Strong background in commercial / industrial schemes Confident working autonomously in a remote environment Able to deliver technically sound, buildable drainage and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
AI Enigneer- 12 month contract
Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS / Azure / GCP) Docker, Kubernetes CI/CD, observability, testing for AI systemsExperience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale‑up environment A product-focused mindset — you enjoy owning features end‑to‑end Curiosity, creativity, and a genuine passion for AI Understanding of start/ scale up environments Details 12 month contract  Fully remote (London office optional)  £(Apply online only)p/d (outside IR35)
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Electrical Commissioning Manager
I am looking for an experienced Electrical Commissioning Manager to join my client, a well-established Commissioning Consultancy who are looking to bring someone new into the team. This is an ongoing freelance role where you will be assessed for outside of IR35. The selected candidates will come from either a rail, infrastructure, commerical or residential background but have the right attitude to help build a business around them whilst working on both exciting and challenging projects. I am looking for someone who has worked in this capacity for a long time and keen to manage a large project with a tier 1 contractor as the client. Roles and responsibilities: Develop and manage the Commissioning Plan and testing scripts to ensure they align with the project's specific technical requirements and the contractor's master schedule. Witness and formally sign off on all Factory and Site Acceptance Testing (FAT/SAT) for critical infrastructure equipment like HV/LV switchgear and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Contract Full-Stack JavaScript Developer - AI Platform
Contract Full-Stack JavaScript Developer (AI Platform) 📍 Location: 3 days per week in London Office 📆 Duration: 4 weeks with a longer term extension afterwards. 💼 IR35 Status: Outside IR35 💰 Rate: £500p/d – £600p/d Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer. You’ll be joining a small, high-calibre team building a platform to improve workflows within the the FinTech space. They have a genuinely interesting problem at the intersection of frontend engineering, backend systems, and applied LLM tooling. This is a true 0–1 build, ideal if you enjoy ownership, clean abstractions, and shipping product quickly. 🧠 What You’ll Be Working On Building and extending agent-driven workflows. Developing context management and LLM entry points. Only application-layer LLM integrations, not model training) Expanding slide generation functions and data structures. Full-stack feature development, with a frontend-heavy bias...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
DevOps Engineer
Azure DevOps Engineer – 6-month contract – SC Cleared – London/Remote – Outside of IR35 My SC Cleared customer is seeking a highly skilled Azure DevOps / Platform Engineer with deep, hands-on experience in Azure-native engineering and advanced Infrastructure as Code (IaC) practices. This role is ideal for someone who operates at the intersection of DevOps and Software Engineering—bringing a strong development mindset to infrastructure design, automation, and testing. Key Skills & Experience from the Azure DevOps Engineer: Active SC Clearance ideal/lapsed considered Advanced Azure Engineering Strong experience designing for high availability Deep understanding of Azure-native services and architecture patterns Github actions Infrastructure as Code (IaC) Expert-level proficiency with Terraform and/or Bicep Strong focus on modularity, reusability, and maintainability Experience integrating automated testing frameworks (e.g. Terratest, Checkov) Azure Networking &...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Project Engineer Consultant - Pharma
Title: Project Engineering Consultant 🔴 Position Type: Contract OTS (Outside IR35) 🔴 Location: London 🔴 Categories: Project Management, Engineering PM Group requires a project engineering consultant with experience of biopharmaceutical projects to lead a client team in London. Responsibilities · Ensuring that equipment upgrades are delivered on time and within budget. · Delivering capital investment projects in accordance to portfolio schedules and budgets. · Working alongside existing client engineers, managers, and directors. · Leading the multidisciplinary project team through all stages of the projects from concept to construction and handover. · Managing risk and change, securing additional budget as required. · Working alongside third party contractors and offering input into process design and installation. · Ensuring the delivery of projects in a way that is compliant with EU and UK health and safety regulations, as well as client procedures and protocols. · Reporting...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 30, 2026  
Commercial Manager - Rail
Are you a Commercial Manager with previous rail experience? Do you have a previous background in Engineering or Construction? If so, TXM Recruit are working in partnership with a high-profile railway client who are recruiting for a Commercial Manager on a 6-month ongoing contract basis paying up to £500 per day (outside IR35) based in Stratford, London. Our client requires an experienced Commercial Manager to join their team supporting business activities across several projects covering platform extensions, depot builds, facility enhancements and other rail construction projects. About the Role: Performing periodic cost reporting, including provision of Anticipated Final Cost, Actual Cost of Work Performed, and Forecast to Completion. Managing the administration of contracts of varying values and complexity, driving compliance and contractual performance including NEC Option A, C and E, Construction Purchase Orders. Managing all contract communication including creating...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 30, 2026  
Site Engineer
Due to an increase in work within their Utility works in Central London, our client have the need for a Site Engineer to join their team and to support the Project Manager on major Utility Diversion works. This role involves coordinating with contractors, interpreting technical drawings, and ensuring compliance with all regulations and specifications. To be considered, you will have a minimum of an HNC in Civil Engineering and will hold SMSTS, CSCS and First Aid. Utilitiy Diversion experience is essential! Top day rate is on offer which is Outside IR35 and comes with a long term contract! This is a top need with a great client so if you meet the above and are interested, apply now
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 29, 2026  
AWS Data Engineer - Snowflake Cortex (Contract)
AWS Data Engineer - Snowflake CortexLondon (Hybrid) - £550/day - Outside IR35 | Retail 6‑month contract (extendable) working on a cutting‑edge Snowflake Cortex / GenAI data platform for a major retail organisation. What you’ll be doing: Building data pipelines on AWS Developing high‑performance Snowflake data models Delivering Snowflake Cortex AI/LLM use cases Working with large‑scale retail data (sales, customer, inventory)You’ll need: Strong AWS Data Engineering background Hands‑on Snowflake experience Exposure to Snowflake Cortex / GenAI SQL + Python**ASAP start, please reach out to Adam Akhtar at Opus for more detail
IR35 Status:
Outside IR35

CV-Library 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
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