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Unknown Status Contractor lead software engineer

33 lead software engineer jobs found

CL
Apr 21, 2026  
Project Engineer
About the Role Seeking an experienced Mechanical Project Engineer to lead and deliver a portfolio of CAPEX projects at a major Upper Tier COMAH chemical manufacturing facility in the West Midlands. This role is critical in ensuring that site improvements, expansions, and asset upgrades are executed safely, efficiently, and in full compliance with stringent regulatory requirements. The ideal candidate will have a strong background in the chemical, process, or high‑hazard manufacturing industries, with demonstrable experience managing complex engineering projects from concept through to commissioning. Key Responsibilities Project Delivery & Execution Lead the full lifecycle of CAPEX projects, including feasibility assessment, scoping, front‑end engineering design, detailed engineering, procurement, construction, commissioning, and handover to operations. Oversee multiple concurrent projects, ranging from small asset upgrades to major plant modifications (£1M+). Compliance...
IR35 Status:
Unknown Status

CV-Library Oldbury, West Midlands Contractor
CL
Apr 19, 2026  
Temporary Design Engineer
Are you a design engineer looking for a temp role? Do you have experience using AutoCAD electrical? Have you electrically design control panels? If so this exciting new role could be for you! Our client is engineering tool provider with customers using their process solutions for a wide range of uses. They are looking for an Electrical Design Engineer to join the team and help them achieve our mission of providing the best solutions for customers. Key responsibilities * Provide guidance and mentorship to engineering team members, helping to ensure their professional growth and development, including onboarding new staff. * Ensure the output of the team is in a standard format, complies with company quality, as well as other regulatory and compliance standards. * Support other departments by answering queries and requests for information relating to your function. * Work closely and support the other Lead Engineer to ensure that a consistent engineering service is provided...
IR35 Status:
Unknown Status

CV-Library Severn Beach, South Gloucestershire Contractor
CL
Apr 18, 2026  
Operations and Maintenance Support Engineer
Operations & Maintenance Engineer – HVDC (Aberdeen) Location: Aberdeen (Hybrid – minimum 3 days in office) Our client is looking for an Operations & Maintenance Engineer to join the team in Aberdeen, supporting the development of O&M deliverables for a major HVDC converter station and associated offshore platform. Key Responsibilities Provide day‑to‑day support to the Project Lead and the Operations & Maintenance Focal Point. Create and develop Operations & Maintenance Manuals for an HVDC converter station. Build Preventive Maintenance Plans (PMPs) for the HVDC offshore platform. Review, analyse, and comment on OEM (Original Equipment Manufacturer) documentation. Develop critical spares lists aligned with maintenance requirements. Work to planned schedules and provide progress updates to project leadership. Use maintenance software/CMMS tools to support maintenance development activities. Work independently while collaborating effectively within a...
IR35 Status:
Unknown Status

CV-Library Dyce, Aberdeen AB21, UK Contractor
CL
Apr 18, 2026  
Software Engineer | BTGJP00005814
Front End Developer (SC Cleared) Location: Ipswich (100% On-site) Contract Length: 6 Months Security Clearance: Active SC Clearance Required (Immediate Start) The Role We are seeking a highly skilled Front End Developer with a strong software engineering background to lead the modernization of our application suite at Adastral Park. This is a hands-on role where you will be responsible for transitioning existing applications to a TypeScript and React baseline, utilizing our established internal boilerplate to drive security, performance, and development efficiencies. As a key contributor in an Agile environment, you won't just be coding; you will be the bridge between technical execution and product vision-capturing requirements directly from Product Owners and translating them into high-quality, version-controlled software. Core Objectives Modernization: Align legacy applications with our current TypeScript/React baseline and internal standards. Security & Efficiency:...
IR35 Status:
Unknown Status

CV-Library Ipswich, Suffolk Contractor
CL
Apr 18, 2026  
BMS Commissioning Engineer - London
BMS Commissioning Engineer - London My client is an established Building Controls and Integration specialist who are currently looking to take on a BMS Commissioning Engineer to work on a number of projects in London. Role You would be responsible for commissioning and handing over a large BMS project and carry out and document all tasks associated with pre commissioning/ commissioning of a building management system. It is essential that the successful applicant has previous commissioning experience working on either Trend, Tridium, Struxureware or Siemens based Building Management Systems. Key Skills Qualified in Electrical or Electronic Engineering (HNC/ONC, equivalent or higher) Knowledge of the commissioning of building management systems A good understanding of HVAC applications of controls Fluent with building management systems enabling the writing and commissioning of controller/network software. Adaptable approach to workYou will be hardworking and committed to...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 18, 2026  
Senior Mechanical Design Engineer
Senior Mechanical Design Engineer Location: Gateshead or Telford Job Type: Contract, Full-Time Primary Industry: Engineering Secondary Industry: Military and Defence Job Description The Senior Mechanical Design Engineer plays a crucial role within the engineering team, delivering advanced mechanical design solutions for defence-related projects. This position requires a high level of technical expertise in mechanical design, alongside a comprehensive understanding of military and defence standards. The role involves conceptualising, developing and refining mechanical components and assemblies, ensuring designs meet stringent performance, safety and quality requirements. The successful candidate collaborates closely with multi-disciplinary teams including systems engineers, manufacturing, quality assurance and project management to deliver robust and innovative mechanical designs. The role demands strong problem-solving skills, attention to detail and the ability to manage...
IR35 Status:
Unknown Status

CV-Library Gateshead, UK Contractor
CL
Apr 17, 2026  
Electrical Design Engineers - Senior to Lead Roles
Job Specification: Electrical Design Engineer (Senior - Lead) Business Unit: Data Centre Design Consultancy (Client Side) Location: Remote Reporting to: Associate Director/Director Overview We are seeking highly skilled Senior and Lead Electrical Design Engineers to join our specialist data centre design consultancy team. These roles will be responsible for driving the design, coordination, and delivery of complex electrical systems for hyperscale, colocation, and enterprise data centre environments. You will work directly with clients, end users, and multidisciplinary engineering teams to develop high‑quality, technically robust designs from concept through to construction. Core Responsibilities (All Levels) Lead and produce electrical designs for data centre infrastructure including: HV and LV power distribution UPS systems (static and rotary) Standby generation Earthing and bonding Lighting and small power Busbar distribution systems Develop design documentation:...
IR35 Status:
Unknown Status

CV-Library Windsor, Berkshire Contractor
CL
Apr 17, 2026  
Network Automation Engineer
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Are you ready to take your career to the next level and lead the charge in deploying cutting-edge greenfield data centres? Our client is on the lookout for a talented Network Automation Engineer who is passionate about transforming network architecture into streamlined automated solutions. If you thrive in a fast-paced environment and are excited about treating networks as software products, we want to hear from you! Role: Network Automation Engineer Duration: 6 Months (extension options) Location: Remote (must be prepared to travel to Bristol a few times a month) Rate: Competative...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Apr 16, 2026  
Civil Engineer
Key Responsibilities Technical Leadership & Project Management * Lead the detailed design and delivery of wastewater networks, including sewerage rising mains and trunk sewers. * Provide technical leadership on wastewater pipeline rehabilitation and renewals. * Ensure designs comply with Water Industry Standards, Sewerage Sector Guidance, and UK regulatory frameworks. * Desirable: understanding of hydraulic modelling, pipeline design tools, and industry software to develop cost-effective solutions. * Oversee the design, planning, and optioneering of wastewater infrastructure projects. * Mentor and review work of engineers and technicians * Support resourcing, programming and providing input to fee and change control Engineering & Design * Develop designs for pumping stations, rising mains, and gravity sewer systems. * Conduct condition assessments and feasibility studies for wastewater asset rehabilitation. * Ensure integration with existing networks and treatment...
IR35 Status:
Unknown Status

CV-Library Reading, Berkshire Contractor
CL
Apr 16, 2026  
Detail Design Engineer
Marine Design Engineer - Marine Projects Location: Glasgow or Derby Permanent or Contract Opportunities Are you passionate about delivering precision engineering solutions? Belcan is seeking a talented Marine Design Engineer with expertise in Outfit, Structural, Piping, or Electrical design, to join our expanding Naval team. If you're driven by technical excellence and thrive in a fast-paced marine engineering environment, this could be the perfect role for you. Key Responsibilities of a Marine Design Engineer Detailed Engineering Design & Documentation Develop and produce high‑quality engineering drawings, accurate 3D models, and comprehensive technical specifications using advanced CAD tools. Carry out detailed calculations, tolerance analysis, and material selection to ensure robust, safe, and compliant designs. Lead and contribute to design reviews, ensuring consistent adherence to Belcan's Quality Management System (QMS). Required Skills & Experience Degree...
IR35 Status:
Unknown Status

CV-Library Derby, Derbyshire Contractor
CL
Apr 12, 2026  
Lead Network Engineer / Architect
Network Comms Architect Exciting opportunity for a Network Comms Architect to join our Rail Infrastructure CIS business. We operate a flexible working policy and would be open to discussing working requirements. We will require an element of office working in one of our regional offices which include Ashby de-la Zouch, York, Manchester, Glasgow. Chippenham and Croydon. This role is for a Network Comms Architect, capable of developing a networks design for various projects. The role will involve taking approved template network architectures and customizing them for the requirements of a project, focusing on that project's connectivity and cybersecurity requirements along with the performance characteristics of the application system hardware. The jobholder will be capable of building and maintain strong communication links with telecoms specialists and project delivery teams and will learn to interpret the views of these group and influence delivery strategy, based on the...
IR35 Status:
Unknown Status

CV-Library Ashby-de-la-Zouch LE65, UK Contractor
CL
Apr 08, 2026  
Software Engineering Manager
Software Engineering Manager Certain Advantage is hiring for a Software Engineering Manager based in the Farnborough area. This role is on a contract basis and is site-based. The Company We’re working with a Manufacturing business that operates in the Aerospace sector. They design, manufacture and deliver industry-leading commercial aircraft, and a separate Space and Defence division. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Software Engineering Manager—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be working in a small, experienced, and collaborative team, and be responsible for: Lead the day-to-day activities of the software team Plan, design, develop, verify, and integrate the software for the high-altitude, long-endurance Zephyr aircraft. Acting as the technical authority for software, ensuring compliance with safety, performance,...
IR35 Status:
Unknown Status

CV-Library Farnborough, UK Contractor
CL
Mar 28, 2026  
RAMS Engineer
Job Title: RAMS Engineer Location: Staffordshire (100% on-site) Contract Type: 12-Month Contract The Role We are seeking a highly motivated and experienced RAMS Engineer to join a global team of subject matter experts. This position focuses on high-voltage electrical equipment, specifically within HVDC (High Voltage Direct Current) systems. In this role, you will be responsible for coordinating, creating, verifying, and validating reliability, availability, and maintainability (RAM) models for HVDC systems and subsystems. You will manage project risks throughout the lifecycle, enforce engineering discipline, drive quality processes, and provide technical leadership and training to both customers and internal stakeholders. Key Responsibilities RAM Studies & Strategy Conduct RAMS studies for HVDC projects and tenders, covering both LCC and VSC technologies. Define spare part requirements and maintenance strategies. Establish and monitor RAMS study structures,...
IR35 Status:
Unknown Status

CV-Library Staffordshire, UK Contractor
CL
Mar 21, 2026  
Senior Systems Engineer
Senior Systems Engineer (12 Month Fixed Term Contract) Denham Martin-Baker is the world’s leading manufacturer of ejection and crashworthy seats, saving over 7,805 lives to date. We combine cutting-edge engineering with a clear mission: protecting aircrew around the world. We are now recruiting a Senior Systems Engineer (12 month Fixed Term contract) to join our established Systems Engineering team at our Denham site. The Role: As a Senior Systems Engineer, you will lead complex analytical engineering activities across the full product lifecycle — from concept and development through to production and verification. You will be responsible for maintaining system requirements, conducting in-depth analyses, supporting system verification, and producing highly technical documentation required for internal, customer, and contractual purposes. You will also play a key role in mentoring Systems Engineers, helping maximise team capability, quality, and productivity while supporting...
IR35 Status:
Unknown Status

CV-Library Denham, Buckinghamshire Contractor
CL
Mar 20, 2026  
Low Voltage Systems Engineer
EE Low Voltage Systems Engineer Scope & Skills summary Scope of Work * Develop, Integrate, Validate, and Sign off Low Voltage Systems, across all relevant projects * Responsibility for hardware and software management (System 42), check & approve circuit diagrams (Schaltplans), support the development of functions, networking, and communications between ECUs. Use diagnostic troubleshooting skills to resolve vehicle issues. * Support all Compliance, Functional Safety, and Golden Rules (ENG (Apply online only) Emissions Control Module Application Process) activities as required. Key Deliverables * Develop, Integrate and Validate the Low Voltage Components, both on and off vehicle, for all relevant projects in line with the company Product Emergence Process. * Work cross functionally within Electrical & Electronics, Whole Vehicle, Body & Trim, and Motion Engineering R&D departments, to deliver a Low Voltage system that meets customer and vehicle...
IR35 Status:
Unknown Status

CV-Library Greater Manchester, UK Contractor
CL
Feb 11, 2026  
Lead Electronics Engineer 108271
Lead Electronics Engineer  Edinburgh, Luton, Bristol, Southampton (2 days from home) circa £84 per hour + overtime Contract position Virtual interview Mon–Fri   Certain Advantage is collaborating with a key client to recruit a Lead Electronics Engineer. You will lead the electronics development of a key sensor project for aircraft. This is a key role in developing, maturing, and delivering a mission-critical, electro-optical system that will be installed onto the aircraft platform.   What will you be doing? Manage and lead a team of Electronics engineers in developing the sensor system’s electronic hardware through the full engineering lifecycle from requirements analysis to customer delivery. Ownership of electronics work packages, agreeing budget and schedule with engineering management, day-to-day planning and execution of the teams’ work, supervising engineers in completion of their tasks, and status reporting to key stakeholders. Lead the electronics architecture...
IR35 Status:
Unknown Status

CV-Library Edinburgh, UK Contractor
CL
Feb 08, 2026  
AI Engineer
Certain Advantage are recruiting on behalf of our Trading client for an AI Engineer on a contract basis for 6-12 months initially in London. This will require some onsite days in Central London during the week. We are seeking Engineers skilled in python with a strong focus on GenAI AI and LLMs to lead the integration of cutting-edge language technologies into real-world applications. If you’re someone passionate about building scalable, responsible, and high-impact GenAI solutions then this could be for you! We’re looking for Engineers offering competent core technical skills in Python Programming, Data Handling with NumPy, Pandas, SQL, and use of Git/GitHub for version control. Any experience with these GenAI Use Cases would be relevant and desirable; Chatbots, copilots, document summarisation, Q&A, content generation.   To help make your application as relevant as possible, please ensure your CV demonstrates any prior experience you have relating to the below;     System...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 17, 2026  
Senior Planner
Rubicon Consulting is currently recruiting for a Senior Planner on a 6 Month Rolling Contract, based in Warwick Role Summary The Senior Planner is responsible for developing, maintaining, and managing integrated project schedules for substation delivery projects. The role ensures that planning, sequencing, and progress tracking support safe, efficient, and timely execution across engineering, procurement, construction, and commissioning phases. Key Responsibilities Planning & Scheduling * Develop detailed project schedules. * Produce baseline programmes and maintain updates reflecting progress, risks, and changes. * Define critical paths, float analysis, and resource loading. * Integrate subcontractor and supplier schedules into master programmes. Project Controls * Monitor progress against plan and produce regular reports, dashboards, and earned value metrics. * Identify delays, risks, and mitigation strategies. * Support change management, including impact...
IR35 Status:
Unknown Status

CV-Library Warwick, Warwickshire Contractor
CL
Apr 16, 2026  
Senior SRE
Location: UK - 100% Remote Duration: 12-Month Initial Contract Working Hours: 11:00 AM - 7:00 PM (Mostly) The Mission Our client is looking for a Senior SRE to lead the design and evolution of a global observability stack that supports millions of customer devices across 8 international data centres. This isn't just about monitoring; it's about building the high-performance, distributed systems that ensure our global cloud remains performant while scaling 2-3x every year. The Scale of the Challenge As a Lead on the Observability team, you will dive into projects that define "large-scale": Metrics at Scale: Design and scale a Prometheus architecture to handle 100M+ active series and beyond. Petabyte Logging: Operate high-performance ElasticSearch clusters holding 2000+TB of data. High-Throughput Pipelines: Grow data pipelines built on Kafka, handling hundreds of thousands of events per second. Engineering Autonomy: Write libraries and APIs (Ruby, Go) that provide engineers...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Apr 16, 2026  
Azure Architect Linux
Role : Azure Architect-Linux with Active SC Clearance Location: London, UK(2 days in a week from office, Hybrid) Job type: 6 Months contract with possible extension Job Details: 12+ years of IT experience and minimum of 5+ years of experience on Azure Infra, Azure Migrate, Azure Networking mainly Azure IaaS/PaaS, DC, Cloud, Security, SIAM and Data/Storage areas Azure Key Vault, Azure IAM. Should have worked with the team size of above 5 Infra, technically guided, managed and governed the team. Primary skills: Expertise in On-prem/Public cloud Infra assessments using Azure Migrate Driving the cloud Solutioning Azure activities for large complex migration Ensure that the proposed solution covers Azure strategy, stakeholder management as well as the actual solution covering Business, Application and Infrastructure as well as commercial aspects (in terms of value for money and not commercial costing etc.) Working experience with various industry domains like banking, healthcare,...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
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