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Contractor 29
Inside IR35 senior mechanical design engineer

29 senior mechanical design engineer jobs found

CL
Mar 14, 2026  
Senior CE&I Engineer
Job title: Senior CE&I Engineer Job Type: Contract IR35 Status: Inside IR35 Start date: ASAP - Subject to vetting Duration: 12 Months Pay rate: Depending on experience Location: Whitehaven, Cumbria Hybrid/Remote Working: Hybrid available - 3 days in office/site Hours of work: Up to 40 hours per week Role information: - An opportunity has arisen for an experienced Snr CE&I Design Engineer with local site experience of supporting Mechanical handling operations and upgrade of existing electrical power systems, and CE&I security-based improvements Qualifications/Experience Required - Hold an HNC/HND in a relevant field - Working experience using CIMAGE - Provide Lessons From Experience (LFE) and apply knowledge of plant constraints throughout the project delivery process. - Review and approve Technical Queries/TOs to enable site works to progress safely and - efficiently. - Produce NFR and feasibility documentation to justify design decisions and undertake formal...
IR35 Status:
Inside IR35

CV-Library Whitehaven, Cumbria Contractor
CL
Mar 21, 2026  
Principal Systems Engineer (Facilities & Infrastructure)
Job Title: Principal Systems Engineer (Facilities & Infrastructure Upgrades) Location: Boscombe Down WFH: 3 days onsite per week Duration: 6 months Clearance: SC to Start preferred IR35: Inside Day Rate: £DOE Key Skills: Systems Engineering, Test, Trials, Training, Infrastructure, Engineering, Rail, Nuclear, Aviation, Military, Full Lifecycle, RIBA, CDM, JCT, NEC About the Role We are seeking an experienced Principal Systems Engineer to lead the technical delivery and systems engineering of complex, high-value infrastructure projects supporting Test, Trials, Training and Evaluation. This includes facilities and infrastructure that supports the testing of aviation, land, and environmental systems. In this role, you will act as the Technical Lead and Lead Systems Engineer, guiding projects from requirements through to transition to service, while mentoring junior engineers and providing technical advice across multiple programmes. You will be responsible for ensuring...
IR35 Status:
Inside IR35

CV-Library Amesbury, Wiltshire Contractor
CL
Mar 21, 2026  
Storage Senior DPS SME
Storage Senior DPS SME +Hybrid working in Sheffield +Inside IR35 +£475 - £510 a day Skills: +Commvault +Veritas NetBackup We are seeking an experienced Storage Senior DPS SME to join a major financial services organisation. This role sits within the bank's data protection services function and will focus on automation, monitoring, and engineering support across enterprise-scale data protection platforms. You will play a key role in designing and supporting automation solutions, enhancing monitoring and reporting, evaluating new product capabilities, and providing technical leadership within the team. Key Responsibilities Design, develop, test, and support automation for enterprise data protection services Build and maintain reporting and monitoring capabilities for automated solutions Provide engineering support for the bank's data protection products and standard usage models Evaluate products, new features, and new versions to support continuous improvement Produce...
IR35 Status:
Inside IR35

CV-Library Sheffield, South Yorkshire Contractor
CL
Mar 20, 2026  
Process Instrument Design Engineer
Process Instrument Design Engineer Location - Minimum 3 days per week on site in Warrington, Cheshire Hours - 37 hours per week over 4½ days Rate £50-65 per hour (Umbrella PAYE) - Inside IR35  Duration 12 months +  The Opportunity An exciting opportunity has arisen for a Process Instrument Design Engineer to join the Silos PFCS Supporting Projects E&I design team. You will deliver and check high-quality engineering design packages to ensure safety, functional and business requirements are met across the full project lifecycle — from concept design through to handover. This is a key role supporting a major UK nuclear decommissioning programme within a highly regulated environment. Key Responsibilities Deliver and check Process Instrumentation design packages Work within a multidiscipline engineering team Ensure compliance with applicable engineering standards Support Construction and Commissioning activities Provide mentorship and technical support to early...
IR35 Status:
Inside IR35

CV-Library Warrington, UK Contractor
CL
Mar 19, 2026  
Infrastructure Engineer
Infrastructure Engineer (DevOps) 📅12 Months Contract 💰£350 a day inside IR35 📍London Based A Well established top consultancy firm is looking for an experienced DevOps Engineer to join their financial services client on a 12 months contract period inside IR35. In this role, you will be a driving force within a high-impact delivery unit, working on critical initiatives that support millions of customers and the world's most prominent institutional clients. You will be responsible for defining complex requirements, designing innovative data centre technology, and leading cross-functional teams to deliver seamless, resilient infrastructure at scale. In this role, you will lead the conceptualisation and deployment of cutting-edge data centre components alongside automated, cloud-native environments. Act as a key decision-maker, mentoring junior talent and fostering a culture of continuous technical excellence across the unit. Drive innovation as you stay at the forefront of...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Mar 19, 2026  
Senior Front-End Developer
Senior Front-End Developer (Creative Technologist) * 6-month contract (initially) * Market Rates * Inside IR35 * Remote Working (+ x1 day per week in central London) The Opportunity Our client is seeking a Senior Creative Technologist / Senior Front-End Developer to play a pivotal role in shaping the future of their digital experience delivery. Joining a forward-thinking organisation at the intersection of design, technology and innovation, where you will help define how advanced prototypes and production-ready digital platforms are conceived, engineered and delivered. You will be consulting alongside the Technology Director, Lead Visual Designer and an established Offshore Development team to ensure creative ideas are not only technically achievable but executed to an exceptional standard. The successful candidate will bring experience partnering with leading, high profile, global brands providing creative technology consultancy that aligns creative ambition with technical...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 19, 2026  
Principal Maritime Structural Engineer
Role: Prinicipal Structural Engineer Location: Gosport-onsite Duration: 6 months Rate: £600-£700/day Inside IR35: Umbrella About our Client: Our client is a leading company in defense and aerospace technology, specializing in cutting-edge research, testing, and innovation across multiple sectors. They are known for their state-of-the-art facilities and highly skilled workforce, making them a key player in advancing technology and delivering high-quality solutions. The Role As a Principal Maritime Structural Engineer, you'll be responsible for delivering work streams whilst guiding a mixed discipline engineering team. Ultimately enabling the engineering delivery of a large multi-year high profile maritime project within the Maritime defence sector. Day-to-day, you will use Finite Element Analysis (FEA) to model and assess the structural response of submarine propulsors under quasi-static and dynamic conditions. Responsibilities include developing and reviewing FEA models,...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Mar 19, 2026  
Resident Engineer - Electrical
Role: Resident Electrical Engineer Location: Devonport, Plymouth Duration: 12 months Inside IR35: Umbrella The purpose: Ensure the delivery of site Quality by managing, providing advice and support, and witnessing the installation and commissioning process through construction works in the submarine refit complex. Primary focus will be Electrical activity. You will be accountable to the Lead Construction Manager for day to day planning matters. You will assist the construction and Project team by providing advice and communicating with contractors and relevant internal stakeholders to resolve site issues/ Technical Queries during construction in line with contract timescales. You will ensure the contractor adheres to the Scope of works and Change requests. You will undertake and record inspections to ensure adherence to scope and integrated test plans. The post operates as part of the Major Infrastructure Projects Business Unit. Roles& responsibilities: Ensure the...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Mar 18, 2026  
Infrastructure Virtualisation Engineer
Infrastructure Virtualisation Engineer 2 year Contract Inside IR35 Location - Portsmouth or Corsham Overview The Infrastructure Virtualisation Engineering Service will support the technical team responsible for the design, development, documentation, building and validation of the core virtual estate which form the backbone of the NSoIT(D) Platform. The detailed responsibilities of the team include: The design, development, building and validation of all virtualisation components which form part of the NSoIT(D) Platform. Production and review of all levels of design artefacts. Supporting wider NSoIT(D) system testing activities. Working with Service Management to resolve issues.Essential skills, qualifications and experience In order to deliver this service, it is essential that individuals have: Demonstrable experience of at least 3 years within the industry with detailed knowledge and understanding, of the design, implementation, and troubleshooting of the following:...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Mar 18, 2026  
Network Engineer
Network Engineer 2 year Contract Inside IR35 Location - Portsmouth or Corsham Overview The Network Engineering Service will support the technical team responsible for the design, development, documentation, building and validation of the core physical and virtual networking components which form the backbone of the NSoIT(D) Platform. The detailed responsibilities of the team include: The design, development, building and validation of all networking components which form part of the NSoIT(D) Platform. Production and review of all levels of design artefacts. Supporting wider NSoIT(D) system testing activities. Working with Service Management to resolve issues.Essential skills, qualifications and experience In order to deliver this service, it is essential that individuals have: Demonstrable experience of at least 3 years within the industry with detailed knowledge and understanding, of the design, implementation, and troubleshooting of the following: Hierarchical IP...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Mar 18, 2026  
Engineering Lead - VMWare/Openshift
Job Title: VMWare Engineering Lead Location: Sheffield OR Birmingham (3 days per week on-site) Salary/Rate: Up to £485 per day Start Date: March 2026 Job Type:10-month contract (Inside IR35) Company Introduction: We are currently recruiting for an Engineering Lead with experience in large-scale IT infrastructure & distributed systems to join our tier-1 banking client on an exciting long-term contract. Role overview The role is part of the Virtualisation Engineering Team within Distributed Compute in CTO Enterprise Services. A VMware Engineering POD Lead is responsible for guiding the development and delivery of VMware products, ensuring they meet business needs and customer expectations. Responsible for VMware Products Vision and Strategy with a focus on automation, availability, reliability, performance, and scale. Managing complex environmental issues, collaborating with wider teams, such as Operations, Applications, Engineering, Connectivity, and vendors. Job...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Mar 18, 2026  
Infrastructure Automation Engineer
Infrastructure Automation Engineer 2 year Contract Inside IR35 Location - Portsmouth or Corsham Overview The Infrastructure Automation Engineering Service will support the technical team responsible for the design, development, documentation, building and validation of infrastructure automation components which form part of the NSoIT(D) Platform. These automation components will primary be developed using Python3, Ansible and Bash with a focus on hardware components, specifically their various features, services, and configurations, as well as interactions with external REST/SOAP APIs and services. The team's responsibilities include: Apply complex problem solving to "reverse engineer" applications, designs and manual build instructions to create zero touch automation packages that are parameterised, dynamic and able to repeatedly and reliably deploy against these designs. Often these applications are legacy, were created without automation in mind or are otherwise resistive...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Mar 18, 2026  
Battery Engineer
Battery Engineer - (phone number removed) - £27.30/hr umbrella rate Are you ready to take your engineering career to the next level? This is a unique opportunity to join a forward-thinking company as a Battery Engineer, where you will have the chance to work on cutting-edge projects and contribute to the future of automotive innovation. With a focus on system design and validation of battery packs, this role offers a dynamic environment that challenges and inspires, allowing you to grow professionally while making a meaningful impact in the field of powertrain technology. What You Will Do: • Evaluate battery structure designs and conduct daily battery tests, including charging and discharging capacity, cycle life, and failure analysis. • Design and optimise battery pack thermal management schemes, including thermal simulations and testing. • Model battery efficiency and service life to ensure optimal performance. • Manage projects and processes independently, demonstrating...
IR35 Status:
Inside IR35

CV-Library Coventry, UK Contractor
CL
Mar 18, 2026  
Nuclear Project Engineer
Nuclear Project Engineer Location: Dungeness Contract: 2-Year Contract Working Pattern: Onsite, 4-Day Working Week Salary / Rate: Inside IR35 - £51 per hour to umbrella Security Clearance: BPSS Required We are recruiting for an experienced Nuclear Project Engineer to join a major project based in Dungeness on a 2-year contract. This role requires proven experience within the nuclear sector, working in a disciplined engineering environment on industrial plant. This is an excellent opportunity to play a key role in delivering engineering solutions within a highly regulated environment, supporting projects from concept through to commissioning and handover. The Role As Nuclear Project Engineer, you will be responsible for identifying project requirements, developing engineering solutions, and ensuring technical delivery aligns with safety, quality, and regulatory standards. You will contribute to the full project lifecycle, including design development, safety case input,...
IR35 Status:
Inside IR35

CV-Library Romney Marsh, Kent Contractor
CL
Mar 15, 2026  
Product Owner
Job Title: Product Owner Location: Sheffield OR Birmingham (3 days per week) Salary/Rate: Up to £485 per day Start Date: March 2026 Job Type: 10-month contract (inside IR35) Company Introduction: We are currently recruiting for a Product Owner to join our client in the financial services sector. Job Responsibilities/Objectives: Lead and mentor a team of VMware engineers within the POD structure Responsible for people and performance management of the team Design, deploy, and manage VMware vSphere, VRO, vRLI, and related technologies Oversee day-to-day operations, troubleshooting, and performance tuning of the virtual environment Collaborate with cross-functional teams to deliver infrastructure solutions for business needs Drive automation initiatives using tools such as PowerCLI, Ansible, or vRealize Suite Develop and maintain technical documentation, standards, and best practices Participate in capacity planning, disaster recovery, and business continuity activities...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Mar 15, 2026  
Network Technical Integration Lead
Network Technical Integration Lead Location: Hybrid (60% onsite / 40% remote) Duration: Contract through to November 2026 Rate: £550 - £604 per day - Inside IR35 Role Overview We are seeking an experienced Network Technical Integration Lead to drive engineering execution, ensure quality delivery, and lead safe, controlled change into production environments. This is a senior technical leadership role focused on resilience, automation-first engineering, and end-to-end design accountability. You will coach engineers, embed SRE best practices, and ensure non-functional requirements (NFRs) are engineered into every solution. Key Responsibilities End-to-End Design Ownership Lead integration design including non-functional requirements, resilience patterns, integration contracts, and rollback strategies. Change & Release Engineering Define and execute structured change rehearsals, smoke testing, soak testing, and production rollbacks. Automation & Infrastructure as...
IR35 Status:
Inside IR35

CV-Library Knutsford, Cheshire Contractor
CL
Mar 15, 2026  
Site Engineer
We are seeking an experienced and driven Site Engineer to support the successful delivery of major infrastructure and construction projects. 6-month contract £400-£450 per hour Umbrella (Inside IR35 only) You will support the senior project team in delivering engineering solutions from concept through installation and maintenance, ensuring projects are executed efficiently, safely, and in line with statutory and customer requirements. Key Responsibilities: Support the implementation of the engineering strategy and framework for designated projects Manage materials, plant, and labour within allocated budgets to ensure safe and efficient delivery Ensure effective communication of systems, design information, procedures, and quality standards Provide technical support to delivery teams and verify work outputs Conduct audits and lead assurance activities, identifying best practice and areas for improvement Build and maintain strong relationships with customers, consultants,...
IR35 Status:
Inside IR35

CV-Library Horncastle, Lincolnshire Contractor
CL
Mar 15, 2026  
Linux Infrastructure Engineer
LINUX Infrastructure Engineer 6 Month Contract - Inside IR35 - Up to £600 per day London, UK - 2-3 days onsite We are seeking a DV Cleared LINUX & Applications Specialist to support a secure government programme delivering operating system and application capabilities within a controlled virtual infrastructure. This is a 6 month contract role, Inside IR35, paying up to £600 per day. Candidates must hold active DV Clearance and be a sole British national due to the sensitivity of the programme. Key Responsibilities Design, build and integration of Linux operating systems - Red Hat preferred Provisioning of new systems within virtual environments OS upgrades, patching and lifecycle management via Satellite Server Security hardening to CIS and NIST standards Use of security scanning tools and threat remediation Deployment, configuration and troubleshooting of vendor monitoring tools Integration with operating systems, container platforms, Active Directory, security tooling...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 15, 2026  
Embedded Systems Engineer
Copello are seeking an experienced Embedded Systems Engineer for a 3–6 month contract with a leading defence organisation based in Buckinghamshire. This is a technically challenging role within a highly regulated environment, supporting the development of advanced systems, ideally within an avionics or wider defence context. The successful candidate will combine strong hands-on embedded development expertise with the ability to lead and coordinate a small engineering team. This role is inside IR35 and requires candidates to be eligible for SC clearance. Key Responsibilities * Lead and manage a small embedded systems engineering team, providing technical direction and oversight * Design, develop and debug embedded software for ARM-based SoCs * Develop and maintain secure boot chains and low-level board support packages * Work across bare-metal and RTOS environments * Support integration, verification and validation activities within a defence framework * Perform...
IR35 Status:
Inside IR35

CV-Library High Wycombe, Buckinghamshire Contractor
CL
Mar 14, 2026  
Principal EC&I Engineer
We are seeking an experienced Principal EC&I Engineer to support the delivery of complex safety‑related projects within a highly regulated environment. This role is ideally suited to an engineer with a strong background in Control, Electrical & Instrumentation (CE&I) and Functional Safety, particularly within the nuclear industry. You will play a key role in the delivery of CE&I Safety System design, working closely with the safety case team and technical leads to ensure compliance with relevant standards and lifecycle processes. Job Title: Principal EC&I Engineer Contract: 12‑month contract (Inside IR35) Location: Hybrid / UK Clearance: Must be eligible for SC clearance Industry: Highly regulated sector - nuclear experience strongly preferred Key Responsibilities Lead and deliver CE&I safety system design packages across complex, safety‑critical projects. Provide technical governance and oversight on functional safety matters. Ensure alignment with...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
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