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Engineering Outside IR35 software engineer

20 software engineer jobs found

CL
Mar 11, 2026  
Embedded Software Engineer
I'm recruiting for a small business in Cheltenham who are looking for an Embedded Software Contractor on a 3 month contract (outside IR35). The work is based around Zephyr RTOS on Nordic chips. Previous experience (in-depth!) is needed for this. ** Work can be done remotely after an initial period of 3-4 days on-site. Also may require on-site visits to Cheltenham throughout depending on project progression. ** ROLE: Embedded Software Engineer LOCATION: Remote (Cheltenham) RATE: up to £60ph DURATION: 3 months Skills required for the Embedded SW Engineer: * C * Zephyr RTOS * Nordic chips * Linux If you're interested, please apply below or get in touch with any questions Cheers, Nathan
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Mar 14, 2026  
DV Cleared Control Systems Engineer
DV Cleared Senior Software Engineer Aldermaston - Onsite 12-month contract | Outside IR35 Are you a DV cleared Software Engineer who can take full ownership of software delivery on site? Do you enjoy building Siemens PLC solutions from scratch in secure, regulated environments? Looking for a long-term contract with a strong on-site engineering focus? What's in it for you ·£650 to £750 per day ·Outside IR35 ·12-month contract ·4-5 days onsite per week ·Work on high-security, technically challenging projects What will you be doing? ·Designing, developing and programming Siemens PLC systems from scratch ·Leading all software activities on an assigned project ·Configuring Siemens PLCs, HMIs and associated networks ·Producing on-site test documentation and supporting FATs and SATs ·Carrying out on-site testing and commissioning of PLC systems ·Acting as the technical interface with the client during delivery ·Providing technical leadership, mentoring and support to other engineers...
IR35 Status:
Outside IR35

CV-Library Reading, UK Contractor
CL
Mar 14, 2026  
Mechanical Design Engineer
Mechanical Design Engineer - Greater Manchester Our client has an open requirement for a Mechanical Design Engineer on a 6 month contract basis with the possibility for further extension. This will operate on an outside IR35 basis so limited company contractors will be able to operate, and a rate between £35 and £43 per hour is expected, subject to level of experience and suitability. Candidates will be required to work in the office full time initially and then switch to a hybrid model of 3 days office based and 2 from home after a few weeks’ orientation. The client is looking for a good engineering background first and foremost with strong experience and knowledge of typical mechanical equipment and terminology including: Limits and fittings, bearings, linear guides, GD&T’s, rotating equipment, and automated equipment such as motors, gearboxes, and drives. They should also have a basic knowledge of working with steel structures. The client is using Creo design software -...
IR35 Status:
Outside IR35

CV-Library Eccles, City and Borough of Salford Contractor
CL
Mar 21, 2026  
Senior Electrical Engineer (Client side, Ireland)
Senior Electrical Engineer (Client side) – Contract – Ireland (Cork) Location: Ireland (Cork) This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. This is a Client side role and will be based on site at a large operational energy facility. This role is deemed to be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be...
IR35 Status:
Outside IR35

CV-Library Ireland Contractor
CL
Mar 21, 2026  
Senior Mechanical Engineer (Client side, Ireland)
Senior Mechanical Engineer (Client side) – Contract – Ireland (Cork) Location: Ireland (Cork) This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. This is a Client side role and will be based on site at a large operational energy facility. This role is deemed to be outside IR35. Role & Responsibilities * Acting as an integrated part of the end Client team, executing Piping/Mechanical Engineering activities and maintain technical integrity. * Supporting the development of Mechanical and Piping layout for a range of major energy projects at different stages including concept, pre-FEED, FEED and EPC / PMC. * Reviewing and approving Piping/Mechanical deliverables such isometrics, GA’s, stress analysis. * Development of Mechanical Equipment Specification and Datasheets. * CAESAR Stress Analysis experience, or strong knowledge of Stress...
IR35 Status:
Outside IR35

CV-Library Ireland Contractor
CL
Mar 21, 2026  
Senior Electrical Engineer (Rail Experience)
Senior Electrical Engineer (Rail Experience) – Contract Location: Cardiff / Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth. Our client operates across multiple industries, but this particular role requires strong experience of rail projects as well as knowledge of Microstation. The role may require occasional travel to other locations. The role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Review and issue RFIs. * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC...
IR35 Status:
Outside IR35

CV-Library Vale of Glamorgan, UK Contractor
CL
Mar 21, 2026  
Senior Civil Engineer
Location: London (2-3 days in office) Contract Type: Long-term contract (Outside IR35) Hours: 40 per week Equipment: To be supplied by company   About the Role: We are currently seeking a talented Civil Engineer or Senior Civil Engineer to join a well-established consultancy based in London. The role involves working on a variety of development infrastructure projects, including drainage strategies and flood risk assessments. The successful candidate will have strong experience using Civil 3D and Infodrainage software, and will play a key role in delivering complex infrastructure solutions for both public and private sector clients.   Key Responsibilities:   ·Design and manage infrastructure projects for residential, commercial, and mixed-use developments. ·Prepare drainage strategies, flood risk assessments, and other associated reports. ·Utilise Civil 3D and Infodrainage to model and design drainage systems. ·Collaborate with multi-disciplinary teams, including...
IR35 Status:
Outside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Mar 20, 2026  
Part Time Civil Engineer
Contract Senior Civil Engineer – Drainage & Highways 📍 Remote ⏱ 20 Hours per Week 💰 Competitive Hourly Rate (Outside IR35 considered) A busy civil engineering consultancy is looking to appoint an experienced Senior Civil Engineer on a part-time contract basis (circa 20 hours per week). This role will focus primarily on residential and commercial development schemes, with an emphasis on drainage and adoptable highways design. The Role You will be responsible for: Surface & foul water drainage design SuDS strategies and detailed design Flood Risk Assessments S104 drainage agreements S38 & S278 highway design and approvals Liaison with LLFAs, Environment Agency and Water Authorities Supporting projects from feasibility through to technical approval This is a hands-on technical role suited to someone comfortable working autonomously and delivering compliant, buildable solutions. Software Required (some of - not all are required) Civils 3D MicroDrainage...
IR35 Status:
Outside IR35

CV-Library Remote Contractor
CL
Mar 19, 2026  
EPLAN Design Engineer
Are you an Electrical Design Engineer specialising in EPLAN design looking for your next contract opportunity? If so, please take a look at the opportunity below.... Electrical Design Engineer Nottingham (hybrid - 3 days per week in the office) £42-£46 per hour Outside IR35 6 month initial contract Essential Skillset: - 5+ years experience as an Electrical Design Engineer - Strong proven working experience with EPLAN pro panel software - Experience within Renewables or Food and Beverage sectors - Familiarity with PLC Controls and programming If this position is of interest, please get in contact with Alex Hooton at JAM Recruitment as soon as possible
IR35 Status:
Outside IR35

CV-Library Nottingham, Nottinghamshire Contractor
CL
Mar 18, 2026  
Structural Engineer
6 month contract (extendable) Hybrid home/office basis Can be outside IR35 Are you a talented and experienced Structural Engineer looking for a new contract? Be part of a business with exciting growth, with a current team of 35+ dedicated professionals, working on a diverse range of projects with values ranging from £5-100million. As a Structural Engineer on a contract basis, you will be responsible for designing and analysing complex structural projects, ensuring they meet the highest standards of safety, efficiency, and sustainability. Key Responsibilities: • Be involved in structural engineering projects from inception to completion. • Conduct structural analysis and design using industry-standard software. • Collaborate closely with architects, clients, and other engineering disciplines. • Prepare calculations, and reports, plus review engineering drawings. • Ensure compliance with relevant codes, regulations, and quality standards. • Participate in project meetings...
IR35 Status:
Outside IR35

CV-Library B1, Birmingham, West Midlands (County) Contractor
CL
Mar 15, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Derbyshire Rate: £40 - £42 per hour (Ltd – Outside IR35) Contract: 3 – 6 month initial contract – likely to extend Immediate Start Our client is looking for an experienced professional to take a lead role in managing the full design process—from initial concept through to final delivery. This is a unique opportunity to contribute to high-impact projects within a fast-paced, collaborative engineering environment. You'll use tools like CAD and advanced engineering software to validate calculations, support testing, and oversee project execution, working closely with cross-functional teams to ensure quality, efficiency, and client satisfaction at every stage. What Our Client is Looking For: A hands-on background in fabrication and structural engineering Proficiency in engineering calculations – using Mathcad, Excel, and hand calculations Expertise in acoustics, airflow, and thermal systems Experience with both large and small companies,...
IR35 Status:
Outside IR35

CV-Library Derbyshire, UK Contractor
CL
Mar 15, 2026  
Automation Engineer
We're supporting a major engineering organisation delivering large‑scale automation and control upgrades across the UK water sector. Due to increased project workload, they're looking to bring in an experienced Contract Automation Engineer with strong multi‑vendor PLC/SCADA experience and full‑lifecycle project capability. The Role You'll be delivering controls and automation solutions across major water & wastewater treatment projects. This contract involves full lifecycle engineering-from specifications and design through to programming, FAT/SAT, site commissioning, and handover. Technical Requirements You must be proficient in: Allen‑Bradley / Rockwell Automation Studio 5000 / RSLogix 5000 FactoryTalk View SE/ME Schneider Electric EcoStruxure Control Expert (Unity Pro) SCADA/HMI platforms Mitsubishi Software GX Works / GX Developer Ideal Background This will suit contractors who have previously worked with businesses known for water sector systems integration,...
IR35 Status:
Outside IR35

CV-Library Staffordshire, UK Contractor
CL
Mar 15, 2026  
Senior Civil Engineer
We are seeking an experienced Senior Civil Design Engineer to support a portfolio of National Grid infrastructure projects. The role involves leading the civil and structural design elements for substation, overhead line, and other transmission‑related assets, ensuring compliance with National Grid's technical specifications and governance processes. This is an Outside IR35 contract position, offering hybrid working with on‑site collaboration. Key Responsibilities Lead and produce civil and structural designs for National Grid transmission projects (substations, foundations, compounds, cable routes, OHL works, access roads, drainage, etc.). Ensure all designs comply with National Grid TP / TS standards and relevant industry codes (BS EN, Eurocodes). Prepare design calculations, sketches, reports, specifications, and technical documentation. Manage design risk assessments and contribute to CDM compliance. Coordinate with multidisciplinary teams including electrical, geotechnical,...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Mar 15, 2026  
Senior Mechanical Design Engineer
Position: Mechanical Design Engineer Location: Castle Donington - Hybrid Contract: Outside IR35 Type: Full-Time The Role This is an outside IR25 assignment expected to last between 6 - 12 months with the successful contractor involved in the design of a range of fabrications and components used in turbomachinery applications. Key Responsibilities: Create detailed 3D models and assemblies using Siemens NX. Generate engineering drawings Perform engineering design calculations eg Perform tolerance stack-up analysis , bolted joint. Preparation of engineering design reports Engage with suppliers and lead design for manufacturing activities Ensure designs meet industry standards, customer specifications, and regulatory requirements. Required qualifications and experience: Bachelor's degree in Engineering. Experience designing castings, machined parts and fabrications. Experience using BS8888 and/or ASME Y14.5 Proficiency in NX software. Strong skills in mechanical...
IR35 Status:
Outside IR35

CV-Library Castle Donington, Leicestershire Contractor
CL
Mar 04, 2026  
Commissioning Engineer
Commissioning Engineer – Automation & Robotics £45–50 per hour | 6-Month Contract | Outside IR35 Wolverhampton | Site-Based (No Hybrid / Remote Working) We’re looking for an experienced Commissioning Engineer to join a project team working on automation and robotic machinery for a major industrial installation. This is a 6-month contract, Outside IR35, offering long hours and solid continuity for the right contractor. The role is fully site-based in Wolverhampton and will require regular on-site presence throughout the contract. The Role * Commissioning of automated and robotic systems on-site * PLC commissioning and software development using Siemens TIA Portal * Fault finding, testing, and system optimisation during commissioning phases * Working closely with mechanical, electrical, and controls teams * Supporting site acceptance testing and handover Key Skills & Experience * Proven experience commissioning...
IR35 Status:
Outside IR35

CV-Library Wolverhampton, West Midlands (County) Contractor
CL
Feb 27, 2026  
Functional Safety Engineer (TUV Certified)
Functional Safety Engineer (TUV Certified) – Contract – Hybrid Location: Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. The role can be performed on a hybrid basis with weekly visits to site in West Wales. Previous site experience is and TUV Certification are essential. This role is deemed outside IR35. Role & Responsibilities * Undertaking work providing engineering support to a range of CAPEX and OPEX projects. * Performing safety specification and certification of safety instrumented systems. * Develop SRS – Safety Requirements Specification. * Develop SIS Safety Lifecycle Plan \ Functional Safety Management Plan. * Carry out SIL Verification using simplified equations. * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of design work to ensure...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Feb 17, 2026  
Bms Project Engineer
Role: BMS Project Engineer Day Rate: Up to £460 a day Outside IR35 Location: London Overview Our client is an established Building Management System (BMS) company with several ongoing projects in the London area. They are looking to recruit a BMS Project engineer with experience in Schneider Ecostruxure systems. For this role they are seeking engineers with experience in software writing and graphics experience on BMS systems. The Client The client is a medium-sized company managing multiple large-scale commercial projects in London. They specialise in BEMS projects, offering design, installation, commissioning and service works. Currently they have several projects using Schneider Ecostruxure systems which are expected to continue for the next few years. Responsibilities The client is seeking BMS Project Engineers with the following experience: * Experience with Schneider Ecostruxure systems * BMS software writing experience * BMS graphics...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Feb 14, 2026  
BMS Commissioning Engineer
We have a fantastic contract opportunity for an experienced BMS Commissioning Engineer to join an exciting project in London. On offer is an initial 3 to 6  month contract (with the potential to extend), £300 - £340 per day (outside IR35), and the opportunity to work for a successful BMS integration business. The BMS Commissioning Engineer position: - As a BMS Commissioning Engineer, you will have fantastic experience and knowledge of commissioning Building Management Systems, in particular Trend and Tridium systems.  You will be required to perform software modifications, writing, and generating graphics, working alongside a team engineers. Key skills of the BMS Commissioning Engineer: - Exceptional technical knowledge and experience of the BMS sector. Proven experience commissioning BMS systems Qualifications and experience with Trend and Tridium or Delta Ability to write and manipulate software and graphics. CSCS Skill card or equivalent Benefits of the BMS Commissioning...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jan 27, 2026  
Senior Electrical Engineer
Location: Cardiff This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy and Nuclear sectors. Our client will consider applicants for either a staff or contract position – for a contractor the role will be outside IR35. Role & Responsibilities * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of subcontractor design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Must understand wiring diagrams, control logic diagrams, system descriptions, system calculations, 1-line and 3-line AC drawings, AC & DC schematics, and be able to size equipment and perform cable sizing calculations * Participation in...
IR35 Status:
Outside IR35

CV-Library Burton Ferry, Pembrokeshire Contractor
CL
Dec 11, 2025  
Controls Project Engineer
Controls Project Systems Engineer (PLC) £c40/hr ltd rate South East ABJ7685 Salary dependent on experience but c£35-£45/ hr ltd rate (outside IR35) Start Jan 2026 - 3m with view to extension ONSITE A new position for an experienced Controls Project Systems Engineer (PLC exp) is urgently required for a leading engineering services company to for new upcoming projects. As controls engineer you will be carrying out programming of Siemens S7-1500 PLCs using TIA Portal. As controls engineer experience you will be programming of WinCC SCADA systems - interfacing with multiple S7-1500 PLCs. - Failsafe programming would be desirable. As control engineer you will have the ability to be technical lead for a control panel and review electrical drawings, panel assembly. As control project engineer you will also have the ability to generate documentation such as test plans, Installation / commissioning & Operation / Maintenance Documentation. Mainly office based apart from when you go...
IR35 Status:
Outside IR35

CV-Library South West England, UK Contractor
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