Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Refine by IR35 Status
Unknown Status 69 Inside IR35 41 Outside IR35 8
Refine by Categories
Engineering 65 Information Technology 22 Automotive 6 Management 4 Construction 3 Other 3
Admin-Clerical 1
More
Refine by Job Type
Contractor 118
integration engineer

118 integration engineer jobs found

CL
Apr 09, 2026  
Collibra Integration Engineer
Collibra Integration Engineer Role - Hybrid / Canary Wharf - 6 month Contract - Banking Tier 1 Bank - Regulatory Reporting Team Role - Collibra Integration Engineer Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £415 per day (inside IR35) Tasks Administer and maintain the Collibra platform from an IT engineering perspective, including configuration, health monitoring, troubleshooting, and performance management across EMEA environments. Configure, schedule, and manage integrations using DIP/CDQ, EDGE, and Lineage Harvester, ensuring consistent ingestion of metadata, schemas, and lineage from multiple data sources. Perform connectivity and prerequisite validation with Application teams, ETL teams, and DBAs, including driver installation, credential management, network/firewall requirements and technical onboarding for new data sources. Investigate and resolve incidents related to Collibra...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 08, 2026  
Integration Engineer
Our client BAE Systems is currently seeking an Integration Engineer to join their team on a contract basis. This role is based at the MISC Facility, Portsdown Hill, Portsmouth. This position involves hybrid arrangements, requiring you to be fully on-site. The duration of the contract is 12 months. Key Responsibilities: Supporting the UK MOD test and integration facility Testing new pieces of equipment to ensure functionality Maintaining the facility to ensure it is operational Overseeing GFE and servers owned by the MOD Installing firewalls and modifying networks Managing cabling requirements Applying patches and updates Monitoring server parametrics, including heat output Recalculating room changes based on parametric data Monitoring equipment, logging data, and analysing trends and patterns Job Requirements: Experience in systems integration Knowledge of software integration Ability to maintain and manage a secure facility Proficiency in installing firewalls and modifying...
IR35 Status:
Unknown Status

CV-Library Portsmouth, Hampshire Contractor
CL
Apr 08, 2026  
Integration Engineer
Our client BAE Systems, a key player in the defence and security sector, is currently looking for an experienced Integration Engineer to join their Electronic Systems Business Unit. This contract role is based in Rochester with hybrid arrangements involving four days per week on-site, offering an exciting opportunity to work on critical projects for a duration of 12 months. Key Responsibilities: Integrating software systems within the defence and security sectors Collaborating with cross-functional teams to ensure seamless system integration Conducting tests to validate the integration and functionality of software systems Identifying and troubleshooting integration issues Preparing detailed technical documentation and integration reports Ensuring compliance with security protocols and standards Working under BPSS security level with potential nationality restrictions Job Requirements: Proven experience in software integration Strong knowledge of integration principles and...
IR35 Status:
Unknown Status

CV-Library Rochester, Kent Contractor
CL
Apr 08, 2026  
Integration Engineer
Join a world-renowned aerospace and defence organisation as a Integration Engineer in Rochester full time onsite Would you like to join a global aerospace and defence organisation? Do you want to work as part of an organisation protecting people and maintaining maximum national security? Due to a drive for greater success, this advanced manufacturing business is currently searching for a Integration Engineer to add to their talented, hardworking team in Rochester on a 12 month contract. Striving for innovation and creativity you can ensure no two days will be the same. Rate: £42.11 per hour inside / Umbrella The role:  Design - Input into the definition of requirements for Integration Functional Specifications; document technical specifications  Build & Configuration - Develop source to OICS integrations, configure non-Oracle adapters.  Quality & Robustness - Implement error handling, retries, idempotency, logging and alerts; align mappings to canonical models and...
IR35 Status:
Unknown Status

CV-Library Rochester, Kent Contractor
CL
Apr 04, 2026  
InterSystems Integration Engineer
Hays are now looking for an Integration Engineer - Intersystems for one of our local clients: £550 p/d Inside IR35 2 days a week in Wiltshire, the rest is WFH Must currently hold SC Clearance We are looking for an Integration Engineer with strong, hands‑on experience across InterSystems technologies such as HealthShare, Ensemble, IRIS or Caché. The role involves building and maintaining integration workflows that link internal and external platforms, support reliable data movement, and improve business efficiency. You'll work closely with technical and non‑technical teams to design solutions, troubleshoot issues, and deliver robust integration services. Skills & Experience Required Must have Practical, demonstrable background working with InterSystems products, including: - IRIS - HealthShare - Ensemble - Caché / ObjectScript‑based development Solid understanding of common integration patterns, interoperability concepts, and best‑practice approaches. Strong technical...
IR35 Status:
Inside IR35

CV-Library Wiltshire, UK Contractor
CL
Apr 09, 2026  
Project Lead Engineer - Vehicle Structures
POSITION DESCRIPTION: * This role is within the Vehicle Structures team as a Lead Engineer, reporting to the Technical Group Leader. * The role will mainly focus on the delivery of HV battery enclosures, Frame, Lid, sealing and venting and bracketry. * Responsibility for ensuring all in-flight programmes is being delivered to the latest technical requirements and strategy. * This will include ensuring efficient integration and compatibility of the structure, to deliver the necessary attribute targets. * As a Project Lead Engineer, you will be responsible for the design and development of components on a given platform during the delivery phase, with platform & project engineer responsibilities. * Achieving targets for component/system cost, weight, NVH, dynamics, safety, and function into the Vehicle and Power Unit program teams, as well as making the design and tooling releases to suppliers. SKILLS: * Proven management capabilities with excellent...
IR35 Status:
Unknown Status

CV-Library Solihull, West Midlands (County) Contractor
CL
Apr 09, 2026  
Production Test Engineer
Production Test Engineer 12-month contract Based in Bolton Offering £37ph Inside IR35 Are you an experienced Test Engineer? Do you have experience testing down to component level? 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 Production Test 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: Providing test engineering support to operators on the shopfloor Testing and diagnosing complex electrical/electronic systems, sub-assemblies, and circuit cards down to component level Generating test specifications, operator instructions, and technical reports - based on higher-level requirements and information Identify remedial and corrective...
IR35 Status:
Inside IR35

CV-Library Bolton, Greater Manchester Contractor
CL
Apr 09, 2026  
Senior Engineer
We are seeking an experienced Freelance Senior Engineer to support the delivery of major infrastructure and development projects. This is an excellent opportunity for a highly skilled professional with a strong background in highways, drainage, and structural works to contribute to technically challenging schemes. Role Overview As a Freelance Senior Engineer, you will play a key role in the planning, coordination, and execution of civil engineering works. You will work closely with project managers, design teams, and site staff to ensure projects are delivered safely, on time, and to the highest quality standards. Key Responsibilities - Oversee and manage Section 278 (S278) highway works, ensuring compliance with local authority requirements - Lead the design review and site implementation of drainage systems, including surface and foul water networks - Support delivery of flood defence and mitigation schemes, ensuring adherence to environmental and regulatory standards -...
IR35 Status:
Unknown Status

CV-Library Derby, UK Contractor
CL
Apr 09, 2026  
Software Test Engineer
Software Test Engineer 12 month contract Based in Newcastle Upon Tyne Offering £70ph Inside IR35 Do you have experience using Postman or Bruno? Do you have experience in testing? Do you want to work with an industry-leading company? If the answer is yes to these, then this could be the role for you! As the Software Test 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: Collaborating closely with developers, product owners, and other stakeholders to ensure software quality at every step Task estimation in accordance with sprint planning Design of tests within an agile environment using a test management tool Designing and executing automated and exploratory tests, particularly in RESTful API environments Testing of Web...
IR35 Status:
Inside IR35

CV-Library Newcastle upon Tyne, Tyne and Wear Contractor
CL
Apr 09, 2026  
Graduate Project Engineer (Electrically biased)
Graduate / Intern Project Engineer (Electrical Bias) Location: Near Manchester Type: 3-Month Contract (Potential Extension) Salary: Dependent on experience / education level A chemical manufacturing business near Manchester is looking for a Graduate / Intern Project Engineer to support a key site-wide CMMS implementation project. Due to when this project will start we are only considering candidates who are already based in the local area. There are strong public transport links from the local area for those who haven't got their own transport. This role is ideal for: • Recent graduates looking for their first engineering role • Students about to complete their 2nd year of Electrical Engineering • Interns or placement students What you'll do: • Assist with rollout and integration of the CMMS system • Support data collection, asset verification, and system input • Work alongside Maintenance and Engineering teams • Help improve maintenance processes and documentation...
IR35 Status:
Unknown Status

CV-Library Irlam, Manchester, UK Contractor
CL
Apr 09, 2026  
Electronic Systems Engineer
Senior) Electronic Systems Engineer Location: St Asaph, UK Length: 6 months (possibility for permanent employment after the contract) Security Clearance: SC (or ability to obtain) IR35: Inside IR35 Purpose of Role The (Senior) Electronic Systems Engineer will design, integrate, and validate vehicle-mounted electro-optical systems used in for defence applications. Main Responsibilities - Define system architecture (block diagrams, interfaces, power distribution) - Translate requirements into system specifications and documentation (e.g. ICDs) - Integrate vehicle power systems - Design and integrate video systems (thermal/daylight cameras, display pipelines) - Integrate data buses (CAN, MIL-STD-1553, Ethernet, RS-422/485) - Support system integration, testing, and validation (bench, vehicle, field) - Ensure compliance with EMC and environmental standards (e.g. MIL-STD-461, MIL-STD-810) - Support design reviews, risk management, and issue resolution across the...
IR35 Status:
Inside IR35

CV-Library St Asaph, Denbighshire Contractor
CL
Apr 09, 2026  
SC Cleared Embedded Software Engineer
Job Title: SC Cleared Embedded Software Engineer Location: Malvern, UK Duration; 6 months Rate: Up to £80 per hour via an approved umbrella company Must be willing and eligible to go through the SC Clearance process Are you an experienced Embedded Software Engineer with SC clearance and a passion for innovative technology? Our client, a leading organisation in the defence and aerospace sector, is hiring for a reputable company to support a critical project involving the re-architecture of a legacy electro-optical development board. What you'll be doing: Baseline and re-architect a legacy electro-optical development board to enhance performance and capabilities. Write, implement, and test software at both sub-system and system levels, ensuring seamless integration with application and GUI software, as well as FPGA colleagues. Collaborate closely with cross-disciplinary teams to deliver high-quality solutions aligned with project goals. What you'll bring: Proven...
IR35 Status:
Unknown Status

CV-Library Malvern, Worcestershire Contractor
CL
Apr 09, 2026  
Software Test Engineer
Software Test Engineer Certain Advantage is hiring for a Software Test Engineer based in the Guildford or Newcastle area. This role is on a contract basis and is hybrid-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 Test Engineer —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: Task estimation in accordance with sprint planning. Design of tests within an agile environment using a test management tool. Design and execution of automated and exploratory tests, particularly in RESTful API environments. Test of Web applications Contribution...
IR35 Status:
Unknown Status

CV-Library Newcastle upon Tyne, UK Contractor
CL
Apr 09, 2026  
VMWare Engineer - Inside IR35
VMWare Engineer Rate - £525 - £550 (Daily) Location - Manchester (Hybrid) Duration - 4 Months (Initially) Ir35 - Inside (Must use an umbrella company) We are seeking a Senior VMware Engineer (Contractor) with a minimum of 5 years of hands-on experience provisioning and managing Linux and Windows virtual machines in enterprise VMware environments. This is a contract engagement supporting a higher education institution's virtual infrastructure modernisation and operational support initiatives. The contractor will provide advanced engineering expertise across VMware Cloud Foundation (VCF), VMware ESXi, VMware vSphere, and VMware NSX-T, ensuring stability, scalability, and performance of mission-critical academic and research systems. Scope of Work Provision, configure, and manage Linux and Windows VMs in enterprise clusters. Deploy and manage workloads within VMware Cloud Foundation environments. Install, configure, patch, and upgrade VMware ESXi hosts. Administer and...
IR35 Status:
Inside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Apr 09, 2026  
SC Cleared Network Engineer
Job Title: SC Cleared Network Engineer - IT Infrastructure Support Location: Portsmouth Duration: 6 months Rate: £660.00 per day Must be willing and eligible to go through the SC Clearance process Our client, a reputable organisation, is hiring for a skilled SC Cleared Network Engineer to join their dynamic team. This is an exciting opportunity to provide technical leadership and support across critical IT projects and programmes, working closely with project managers and technical leads to deliver innovative solutions. What you'll be doing: Lead the delivery of complex technical tasks, ensuring they align with project goals and timelines Support the maintenance and enhancement of the Strike Net Experimentation Environment alongside a Server Engineer Provide Level 3 support for all Strike Net Rigs, ensuring secure and reliable operations Contribute to system design, implementation, integration, testing, and evaluation Develop user guides, work instructions, technical...
IR35 Status:
Unknown Status

CV-Library Portsmouth, Hampshire Contractor
CL
Apr 09, 2026  
Vehicle Structures Lead Engineer
Job Title: Vehicle Structure Project Lead Engineer - (phone number removed) Location: Warwickshire Duties: This role is within the Vehicle Structures team as a Lead Engineer, reporting to the Technical Group Leader. The role will mainly focus on the delivery of HV battery enclosures, Frame, Lid, sealing and venting and bracketry. Responsibility for ensuring all in-flight programmes are being delivered to the latest technical requirements and strategy. This will include ensuring efficient integration and compatibility of the structure, to deliver the necessary attribute targets. As a Project Lead Engineer you will be responsible for the design and development of components on a given platform during the delivery phase, with platform & project engineer responsibilities. Achieving targets for component/system cost, weight, NVH, dynamics, safety, and function into the Vehicle and Power Unit program teams, as well as making the design and tooling releases to suppliers. Skills:...
IR35 Status:
Unknown Status

CV-Library Gaydon, Warwickshire Contractor
CL
Apr 09, 2026  
Lead Commissioning Engineer - NG SSE Projects
Job Title: Senior / Lead Commissioning Engineer - Transmission Project (Creag Dhubh) Location: Creag Dhubh Sub Station Sector: Power Transmission / T&D Job Type: Contract (LTD) Start Date: 04/05/2026 End Date: 29/03/2027 Hours: 10-hour days Rate: Up to £1,100 per day DOE Overview: We are seeking a highly experienced Senior / Lead Commissioning Engineer to support delivery on the Creag Dhubh transmission project. This role is suited to a seasoned commissioning professional with a strong track record operating at lead level within UK HV transmission environments. Role Requirements: Minimum 5 years' experience operating as a Lead Commissioning Engineer 20+ years' experience within HV transmission substations Proven experience commissioning primary and secondary plant up to 400kV Strong background working on UK transmission projects (National Grid / SSEN preferred) Extensive knowledge of commissioning procedures, safety rules, and live substation environmentsResponsibilities:...
IR35 Status:
Unknown Status

CV-Library Inveraray, Argyll & Bute Contractor
CL
Apr 09, 2026  
Lead Engineer
Expleo is seeking an experienced Lead Engineer to support our customer based in Gaydon. This role sits within the Vehicle Structures team, focusing on the design, development, and delivery of high‑voltage (HV) battery enclosures and associated structural components. About the Role As a Lead Engineer, you will report to the Technical Group Leader and will be responsible for the delivery of structural components such as HV battery enclosures, frames, lids, sealing & venting systems, and bracketry. You will ensure that all programme content meets the latest technical requirements, aligns with the engineering strategy, and integrates efficiently within the wider vehicle structure to achieve performance targets. You will also act as a Project Lead Engineer for a platform, managing the design and development of components through the full delivery phase. This includes meeting cost, weight, NVH, dynamics, safety, and functional targets, while supporting cross‑functional teams and...
IR35 Status:
Unknown Status

CV-Library CV35, Gaydon, Warwickshire Contractor
CL
Apr 09, 2026  
Senior Systems Engineer
Senior Systems Engineer Livingston or Glenrothes (Hybrid – minimum 3 days onsite) – 12 months (Inside IR35) BPSS needed (SC is ideal) Overview An exciting opportunity for an experienced Senior Systems Engineer to join a high-performing Weapons & Sensors engineering team, supporting the delivery of complex programmes for UK-based customers. Reporting to the Senior Programme Manager within the Power Development Team, the role spans the full product lifecycle and involves working within a collaborative, multi-disciplinary environment using modern digital engineering approaches. This position offers strong professional development opportunities within a growing defence-focused engineering environment. Key Responsibilities * Requirements Management: Capture, analyse, and manage system requirements, ensuring they are clearly defined, verifiable, and traceable throughout the lifecycle. * System Design: Develop and optimise system architectures and components, balancing...
IR35 Status:
Inside IR35

CV-Library Livingston, West Lothian Contractor
CL
Apr 09, 2026  
Electronics Design Engineer
Electronics Design Engineer x 4 £81.90 per hour (inside IR35) Portsmouth Monday to Thursday onsite Defence This is a technical role relating to the Electronic aspects of hardware design & test. The Role Holder will :- Develop and/or support electronic design solutions for both new products and technology insertions into legacy products. Produce and/or support detailed designs from concept to completion and addressing a range of engineering challenges.Participating in all aspects of board‑ and unit‑level design and test activities, including interfaces with higher‑level assemblies. Typical duties include (but are not limited to): § Detailed electronic circuit design including component selection, evaluation, simulation, schematic capture, and liaising with PCB design teams. § Specification of bespoke procured hardware. § Design verification using a combination of simulation, analysis, and test techniques, including support to EMC test houses and customer...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software