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Contractor 69
Basildon senior mechanical engineer

69 senior mechanical engineer jobs found in Basildon

CL
May 08, 2026  
Senior Mechanical Engineer (contract)
Senior Mechanical Engineer Basildon, Essex (1 day/week on site) £53ph (Inside IR35) Initial 6 month contract **Please note we can only consider sole UK Nationals for this role** We are currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes. What you'll do as a Senior Mechanical Engineer: Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM...
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
May 15, 2026  
Senior Mechanical Engineer - Hemel Hempstead
Senior Mechanical Design Engineer - Water Salary: £50,000 - £60,000 Location: Hemel Hempstead Contract: Permanent, Full Time Hours: 40 hours per week The Role We are seeking an experienced Senior Mechanical Design Engineer to play a key technical leadership role within a growing design team, delivering mechanical engineering solutions across a diverse portfolio of water and wastewater treatment projects. You will take ownership of the full mechanical design lifecycle - from concept development through to project completion - ensuring all solutions meet regulatory, safety, environmental, and client requirements. Working closely with multidisciplinary teams, you will support the delivery of fully integrated designs, carry out technical reviews and risk assessments, and provide specialist input during procurement, installation, and commissioning. In addition, you will act as a mentor to junior engineers, helping to build technical capability while promoting innovation, quality,...
IR35 Status:
Unknown Status

CV-Library Hemel Hempstead, UK Contractor
CL
May 14, 2026  
Critical Environment Service Engineer
Title: Critical Environment Field Service Engineer Location: London, UK (LON26) Shift: Mon- Friday : 7 AM to 7 PM Onsite : Atleast 2 days per week Start Date: ASAP Duration: 30th June 2026 (view for possible 18months) Contract type: PAYE Data Centre Operations • Ensures compliance with data centre business units and service-level policies. • Engages with appropriate teams and resources to execute tasks or projects. • Manages programs associated with area of responsibility. • Follows and adheres to safety and security policies and procedures. Reports immediately any safety or security issues or concerns. • Participates in Root Cause Analysis (RCA) process as appropriate. • Lead or participate in incident response activities for critical infrastructure failures, ensuring minimal downtime and effective recovery processes. • Proactively identify potential risks or vulnerabilities in the critical environment and implement strategies for mitigation. • Manage relationships with external...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 16, 2026  
Senior Electrical Design Engineer
An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on an contract basis outside IR35. This hybrid role will involve working as part of a multidisciplinary building services engineering team, supporting the delivery of electrical design solutions across a range of building projects. The successful Electrical Design Engineer will contribute to the development of electrical building services designs, technical documentation and coordinated BIM models. This role is based in the London office with hybrid working available, offering the chance to work on high-quality building services projects alongside experienced engineers and consultants. Key Responsibilities · As an Electrical Design Engineer, your responsibilities will include: · Producing electrical building services designs for a variety of building projects · Developing electrical schematics, layouts and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jan 21, 2026  
Senior HVAC Design Engineer
We are working with this leading multi national data centre and mission critical specialist who are working on schemes across UK and europe. With data centres being crucial components of today's infrastructure, supporting everything from business to public services. Operators must ensure the longevity, efficiency, and sustainability of their sites while optimizing them for mission-critical tasks. The teams are at the forefront of designing innovative and energy-efficient data centres, ensuring that our clients meet their goals of performance, cost-efficiency, and sustainability. The Opportunity Join our international and multidisciplinary team of passionate design engineers and help us create high-quality, sustainable, and innovative data centre structures. You will work on medium to large-scale mission-critical projects, covering all stages of design - from concept to construction supervision and handover. As part of an interdisciplinary team of architects, advisors &...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 15, 2026  
Systems V&V Engineer
Systems V&V Engineer 12 month contract Can be based in Stevenage or Bristol Offering up to £85ph Inside IR35 Do you have experience with SysML or Rhapsody? Do you have hands-on experience with DOORS and DOORS NG? Do you want to work with an industry-leading company? If your answers are yes to these, then this could be the role for you! As the Systems V&V 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! Due to the nature of what you will be working on, you will be required to obtain MOD security clearance. You will be involved in: Test Strategy & Development: Defining test requirements, creating test plans, scoping frontend activities with the customer ensuring that requirements are met and understood System Validation: Overseeing...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
May 15, 2026  
Systems V&V Engineer
Systems V&V Engineering Specialist Initial 12-months Bristol or Stevenage, 2 days onsite per week SC (can start on BPSS) up to £85ph, UMB, inside IR35 Our Test & Evaluation team are looking for a V&V Systems Engineering Specialist to operate with a high-level of technical responsibility for the entire lifecycle of our product, ranging from design and development to qualification and deployment. A specialist will bridge the gap between design and production, ensuring that complex, high-reliability systems meet our requirements. Key Responsibilities Test Strategy & Development: Defining test requirements, creating test plans, scoping front end activities with the customer ensuring that requirements are met and understood with the best efficiency maintained for deliveries. System Validation: Overseeing or supporting the qualification and acceptance of test equipment, ensuring it is robust, compliant, and accurate. Analysis & Troubleshooting: Analysing test...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
May 13, 2026  
Supplier Quality Engineer
Supplier Quality Engineer 6 month contract Based in Stevenage - hybrid Offering £45ph Inside IR35 Do you have experience with AS9100 standards? Do you have quality experience in Manufacturing and Supply Chain environments? 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 Supplier Quality 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: Complete scheduled Quality Assurance audits at suppliers using standardised tools Conduct thorough verification/inspection of products to ensure they meet the required quality standards Identify and document any non-conformities in the manufacturing process and deviations from the product specifications...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Apr 11, 2026  
Senior Electrical Design Engineer
Great new position for an experienced Electrical Design Engineer on a contract basis to support the delivery of high-profile data centre and commercial mixed-use projects across London and the South East. This role will suit a capable engineer who can quickly integrate into a design team and contribute across all project stages, from concept through to detailed design. The Role * Deliver electrical design from concept to detailed stage * Produce calculations, technical drawings, reports, and specifications * Contribute to high-value, technically challenging new-build schemes * Coordinate with mechanical engineers, architects, and contractors * Attend design meetings and undertake site visits as required * Ensure designs comply with current UK Building Regulations and industry standards * Work confidently to programme deadlines within a fast-paced project environment About You * Proven experience within an electrical building services consultancy environment * Strong background...
IR35 Status:
Unknown Status

CV-Library Kent, UK Contractor
CL
May 09, 2026  
Senior MEICA Commissioning Engineer
️ Lead MEICA Commissioning Engineer | Clean Water Projects | Affinity Water Region Outside IR35 | Long-Term AMP8 Programme Leadership Role | Commissioning Strategy | Team Management Some commissioning roles are about witnessing tests and signing paperwork. This one is about leading people, driving standards, and bringing structure to projects before problems ever reach site. A leading Tier 1 contractor delivering clean water projects across the Affinity Water region is looking for a Lead MEICA Commissioning Engineer to oversee commissioning delivery across a portfolio of schemes typically ranging from £5m–£10m. While the individual projects may not be mega-projects, they need someone who has operated at that level before. Someone who understands what “good” looks like on major infrastructure programmes and can bring that level of leadership, planning, coordination, and control into a growing AMP8 delivery environment. This is a role for a true commissioning leader — somebody...
IR35 Status:
Outside IR35

CV-Library Rickmansworth, Hertfordshire Contractor
CL
May 13, 2026  
Senior Supplier Quality Engineer
We are hiring 11x Senior SQD Engineers on a 24 month fixed term contract. Please note we will consider locations in Bicester & Woking. Please see commodities below: 3 x Body in White & Stampings 2x Chassis 1x Exteriors 1x Interiors 2x ICE Propulsion 1x Electrical Propulsion 1x Composites As part of McLaren Automotive's continued growth and its multi-propulsion strategy, we are expanding our Supplier Quality & Development (SQD) team. Strengthening the global SQD function will enhance collaboration with suppliers worldwide and reinforce the delivery of robust quality standards across both new and existing vehicle programmes. What to Expect As a Senior Supplier Quality & Development Engineer, you will take ownership of suppliers within the specific commodity area, managing a global supply base for a variety of components/systems. You will manage these suppliers across the full lifecycle—from sourcing and industrialisation through to series...
IR35 Status:
Unknown Status

CV-Library Woking, Surrey Contractor
CL
May 14, 2026  
Junior Technical Support Engineer / 1st Line Support Technician
Job Title: Junior Technical Support Engineer Location: Based in either Enfield, Slough or Bournemouth Salary: £27,000 - £33,000 per annum Job Type: 1 year Fixed Term Contract, with possible extension, Full Time (ROTA Day/Night Shifts & Weekends) About us BE DC Connect UK Ltd is a visionary company that plans a sustainable future. Powered by clean energy and are ready to lead the way. With expertise in developing innovative solutions for two key industries-power and digital infrastructure. BE DC Connect UK Ltd is based throughout the South East. Providing managed hosting, colocation and network services. Which offers secure, agile, scalable and robust hosting solutions to clients in varying sectors & countries. From our securely operated facilities around the South East, including London, UK we are able to provide services ranging from Virtual Instances & Dedicated Servers to managed multi-server clusters, secure cages or private suites complimented by 24/7 onsite...
IR35 Status:
Unknown Status

CV-Library Enfield, London Contractor
CL
Apr 17, 2026  
Functional Safety Systems Engineer
RLE International is working on behalf of their Essex based Automotive Client, who are currently looking for a Functional Safety Systems Engineer to support their team. Position Description: Rate: £29.59 (via Umbrella PAYE) – increasing to £38.38 after 12 weeks under AWR’s (Agency Worker Regulations) Our client is seeking a Functional Safety Systems Engineer to join their core team in the Essex. You will be a key player in ensuring complex, distributed technologies including powertrain, infotainment, and active safety meet the highest safety standards. Using Model-Based Systems Engineering (MBSE), you will bridge the gap between research and production, turning "what if" into "what’s next." As a key member of an exciting team leading Functional Safety activities in Product Development, this role involves working with technology subject matter experts to conduct Functional Safety analysis using efficient model-based systems engineering (MBSE / SysML) tools. Additionally, you will...
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
May 09, 2026  
Civil Design Engineer
Civil Design Engineer | Water AMP 8 Contract: Long‑term, Outside IR35 Location: Chatham, Kent (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 Chatham 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...
IR35 Status:
Outside IR35

CV-Library Chatham, UK Contractor
CL
May 09, 2026  
Senior Cyber Security Engineer
Senior Cyber Security Engineer (Contract) Location: East London (Local Council) Rate: £500 per day (Umbrella) Duration: 6 months Working Pattern: Hybrid - 1-3 days per week onsite (depending on project needs) The Opportunity We are seeking a highly skilled Senior Cyber Security Engineer to support a Local Council in East London. This role is critical in maximising the value of a newly established outsourced Security Operations Centre (SOC) partnership, ensuring effective integration, optimisation, and knowledge transfer across the internal team. Following a recent team departure, this position will provide senior-level technical leadership to enhance security operations, strengthen internal capability, and drive forward cyber resilience. Key Responsibilities Lead deployment, configuration, and optimisation of endpoint protection using CrowdStrike Falcon Collaborate with SOC partner to design and enhance Splunk dashboards, alerts, and data models Act as escalation point for...
IR35 Status:
Unknown Status

CV-Library East London, London Contractor
CL
May 08, 2026  
Works Inspector
Infrastructure Protection – Works Inspector Business Area: Infrastructure Protection Project: Third Party / External Development Works (TfL Infrastructure Interface) Pay Rate £400 per day (inside IR35) – Umbrella About the Role We are seeking an experienced Infrastructure Protection – Works Inspector to join a busy operational team managing third-party and external development works adjacent to or above TfL infrastructure. You will be responsible for ensuring that construction activities do not compromise the safety, integrity, or operation of the rail network. This includes surveillance checks of safe systems of work, monitoring high-risk construction activities, and undertaking statutory network patrols under ROGS requirements. This is a highly site-based role with significant exposure to active construction environments and operational railway interfaces. Location Site-based role (London Underground / TfL operational infrastructure) You will be required to attend...
IR35 Status:
Inside IR35

CV-Library E20, Stratford and New Town, Greater London 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
May 14, 2026  
Python Developer
Key Responsibilities * Design and build backend components for risk engines, analytics pipelines, and end‑of‑day processing. * Develop high‑performance Python services for modelling, calculations, and data transformation. * Enhance and maintain internal risk platforms aligned with industry frameworks and regulatory expectations. * Collaborate closely with risk SMEs, quants, and technical BAs to refine requirements and deliver robust solutions. * Optimise computation‑heavy workloads and ensure accuracy, stability, and auditability of risk outputs. * Contribute to architectural discussions and technical design reviews. Core Skills & Experience * Expert Python development, particularly in backend and data‑processing contexts. * Proven experience building computation‑heavy or risk‑calculation systems. * Strong understanding of market risk, credit risk, capital, or liquidity concepts. *...
IR35 Status:
Unknown Status

CV-Library Bromley, Greater London Contractor
CL
May 09, 2026  
Senior Cyber Security Engineer
Hackney Council | Contract | Inside IR35 Hackney Council is seeking an experienced Senior Cyber Security Engineer to join its security function on a contract basis. This role is ideal for a hands-on technical specialist with deep expertise in CrowdStrike and Splunk, capable of turning complex security telemetry into actionable intelligence and supporting enterprise-scale security operations. The Role As a Senior Cyber Security Engineer, you will act as a senior technical authority within the security team, working closely with internal stakeholders and an external SOC partner to strengthen endpoint security, detection, and response capabilities. Key Responsibilities * Endpoint Security Strategy: Lead the deployment, configuration, and ongoing management of the CrowdStrike Falcon platform. * SIEM & Detection Engineering: Design, optimise, and maintain Splunk dashboards, alerts, and data models to detect advanced threats. * Incident Response: Act as a technical...
IR35 Status:
Inside IR35

CV-Library E8, Hackney Central, Greater London Contractor
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