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Contractor 122
Information Technology Harlow

122 jobs found in Harlow

CL
Jul 09, 2026  
Electrical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit an Electrical Systems Engineer / Architect subcontractor on an initial 12 month contract. Your base site can either be from the companies Bristol, Stevenage or Bolton office.  This role will be a hybrid position – 3 days per week onsite and 2 days remote.      Hourly Rate: £60 - £85 (Umbrella).      Contract Duration: 6 Months initially and then ongoing and long-term thereafter.   Missile Electronic Architect Job Description:   Electrical Architects/Engineers are involved in all aspects of missile development, from the early concept studies to series production and in-service support. It’s an excellent opportunity for someone wanting to build on their engineering experience. Responsibilities: You will be responsible for the electrical architecture and requirements for missiles and/or their associated launcher systems with duties including: Specifying/determining system electrical requirements interface definitions...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Jul 08, 2026  
C / C++ Software Engineer
World Class Defence Organisation based in Stevenage is currently looking to recruit 2x Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: Our ever-evolving team powers the business across Europe and brings the next generation of defence solutions to life. Together we experiment, innovate and create across the full product lifecycle. And, in a collaborative and close-knit culture, we support...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 08, 2026  
Embedded Software Engineer
World Class Defence Organisation based in Stevenage and Bolton is currently looking to recruit 2x Embedded Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage or Bolton (depending on your preference) Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: We supply a full range of hard real time software solutions for the next generation of missile and defence solutions. This unique and exciting opportunity will allow you to develop technical...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 07, 2026  
Embedded Software Engineer - 3490-1
Our client, a leading player in the Defence & Security and Aerospace sectors, is seeking an Embedded Software Engineer to join their Embedded Software team on an initial 6-month contract. Based onsite in Stevenage, this role provides a unique opportunity to develop both technical and leadership skills across a variety of cutting-edge missile and defence solutions. Key Responsibilities: Developing embedded, real-time software components Continuing the development and integration of missile subsystem software products Targeting software development in C, C++, and/or Ada languages Integrating software with other software components, firmware, and hardware Solving technical problems that sometimes extend beyond the typical software boundaries Ensuring the software complies with relevant standards and practices Job Requirements: Experience in the development of embedded software using C, C++ (Ada experience beneficial) Understanding of Real-Time Operating Systems Excellent...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 07, 2026  
Software Test Engineer
Our client, a leader in the defence and security sector, is currently seeking a Software Test Engineer for a contract position in Stevenage. This role is integral in designing and developing test equipment software for cutting-edge missile systems and sub-components. Our client's dynamic and innovative team across Europe drives advancements in defence technology. Key Responsibilities: Designing and developing test equipment software for complex missile systems and sub-components Collaborating with various teams and stakeholders across the organisation to deliver test software capabilities from early concepts to production Experimenting with new technologies and implementations to meet evolving customer requirements Implementing changes to improve software development practices both within the test software domain and the broader software community Embracing agile methodologies to deliver value and achieve a real sense of accomplishment Engaging with test equipment and electronic...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 06, 2026  
Software Engineer C, C++ / ADA
Software Engineer JOB LOCATION: Stevenage & Bolton SECURITY CLEARANCE LEVEL: SC to Start DURATION: 6+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) RATE: £ 70.00 Per hr on Umbrella (Inside IR35) TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Open to all industries where skillset is apparent; Def/Aero would be ideal however. Essential Skillset & Tools * C/C++ EXPERIENCE (ADA WOULD BE A DESIRABLE ON TOP OF THIS, BUT NOT ESSENTIAL) * An awareness of developing and deploying software on real-time Operating Systems, Risc-V and ARM-based processing platforms. * Excellent analytical and design ability, including review and critical analysis. * Knowledge of modern software development practices Overview: * The growing workload within MBDA UK has created an exciting opportunity within the Embedded Software team . * We supply a full range of hard real time software...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 05, 2026  
Software Engineer C
We're working with a leading engineering and technology organisation within the defence sector, currently looking for a Senior Software Engineer to join a highly skilled team developing advanced test software for complex systems. This is a fantastic opportunity to work on cutting-edge technology in an environment that combines software engineering, automation, electronics and innovation. The Role You'll be responsible for designing and developing software used within advanced test equipment systems, supporting products from early concept through to production. Working closely with multidisciplinary engineering teams, you'll help deliver high-quality software solutions while contributing to continuous improvement, automation and modern development practices. Key Responsibilities Design and develop software for advanced test and measurement systems Develop robust applications primarily using C/C++ Work collaboratively across software, systems and electronics teams Support Agile...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 05, 2026  
Project Manager - Business Change and Transformation
Project Manager - Business Change & Transformation Day Rate: £500 to £600 per day inside IR35 Location: Dagenham (Hybrid - 3 days in office) Reports to: Executive Director, Business Change & Transformation Role Purpose The Project Manager will play a key role in supporting the delivery of enterprise-wide transformation programmes aligned to the organisation's long-term strategic objectives. These programmes may include digital modernisation, operating model redesign, cost optimisation, and service improvement initiatives. This role is responsible for driving high-priority transformation projects from concept through to completion. You will support programme delivery by establishing structured project processes, managing risks and budgets, and coordinating stakeholders across the organisation. Working within a structured public sector governance framework, you will ensure projects are delivered on time, within scope, and to required quality standards. Key...
IR35 Status:
Inside IR35

CV-Library Dagenham, London Contractor
CL
Jul 08, 2026  
Enterprise Architect
Enterprise Architect - Essex Fixed Term Contract / Secondment (12 months, with potential extension) Salary: Up to £80,746 per annum Location: Chelmsford (Anywhere Worker) Help Shape the Future of Local Government in Essex Essex Digital Service is playing a leading role in Local Government Reorganisation (LGR), creating the digital foundations, shared capabilities and technology landscape that will support more integrated, efficient and citizen-focused public services across Essex. We are seeking an experienced Enterprise Architect to lead the development of cross-organisational technology architectures, digital capabilities and system designs that enable collaboration, interoperability and transformation across councils and partner organisations. Key Responsibilities Provide strategic architecture advice to senior leaders and partners. Develop future-state technology, data and digital architectures supporting LGR. Review and assure digital and technology proposals for...
IR35 Status:
Unknown Status

CV-Library Chelmsford, UK Contractor
CL
Jul 05, 2026  
Senior Technician Infrastructure
Job Title: Senior Infrastructure Technician Location: Chelmsford, UK Hours: Full-Time (37.5 hours per week) Job Type: Contract About the Role Are you an experienced IT professional looking to do meaningful work? We are partnering with a vital, high-profile public sector organization to find a Senior Infrastructure Technician. In this critical role, you will be the backbone of the organization's digital operations, ensuring the high availability of mission-critical systems-including emergency operations and dispatch technology. You will act as the senior technical expert within the digital team, tackling complex problems and helping the organization run smoothly and securely. Key Responsibilities Provide advanced 3rd line digital support to resolve complex issues across Windows server infrastructure, local area networks (LAN), wide area networks (WAN), and enterprise telephony systems. Serve as the primary technical escalation point and provide mentorship, support, and...
IR35 Status:
Unknown Status

CV-Library Chelmsford, Essex Contractor
CL
Jul 09, 2026  
Senior Engineer CGEMJP00345173
Role Title: Senior Engineer Duration: contract to run until 18/12/2026 Location: Osterley, West London. Hybrid, 2 days per week onsite Rate: up to £630.20 p/d Umbrella inside IR35 Role purpose / summary Global Commerce are responsible for the Identity and Commerce platform within Global Streaming Technology, facilitating seamless customer experiences across multiple platforms, notably; Peacock, SkyShowtime, NOW & WOW. Focussing on sign up, sign in and acquisition through prospect web journeys, 3rd party partner web integrations & in-app purchase integrations, plus extensive self-service capabilities for in-life customers account management i.e. chat bots, live chat and comprehensive help articles. The team is based across London, Lisbon and Prague. Skills: React.js, Next.js, Unit testing, Agile, Typescript, Jenkins, Concource CI, TDD, Node.js, GraphQL, Microsoft Playwirght All profiles will be reviewed against the required skills and experience. Due to the high...
IR35 Status:
Inside IR35

CV-Library West London, London Contractor
CL
Jul 05, 2026  
IT Team Lead
IT Project & Support Team Leader Colindale - NW9 Hybrid 2/3 days a week onsite £20.46 per hour Temporary ongoing contract We're looking for an experienced and proactive IT Project & Support Team Leader to play a crucial role in ensuring our IT services are reliable, efficient and aligned to business needs. This is a key leadership position responsible for connecting IT operations with business outcomes, leading a support team, driving improvements in systems and infrastructure, and ensuring that colleagues across the organisation have the tools and support they need to deliver excellent services. Why This Role Matters Ensure critical IT services are delivered effectively every day, supporting a fast-paced and complex environment Enable business improvement and transformation through IT projects and system enhancements Bridge business needs and technical delivery, working closely with stakeholders and external providers Drive service excellence and continuous...
IR35 Status:
Unknown Status

CV-Library Edgware, London Contractor
CL
Jul 10, 2026  
Data Engineer Lead Role - Hybrid - Banking
Data Engineer Lead - Tier 1 Bank - London - 6 months Role - Data Engineer Lead Rate - £700 per day (Inside IR35) Duration - 6 months with very likely extension Location - Hybrid / Liverpool Street - 3 days per week in an office in Liverpool Street (London) Role The Data Engineer Lead is responsible for designing, building, and supporting modern data platform, with a particular focus on Databricks, cloud-based data engineering, and leading the migration of legacy Oracle systems into scalable, cloud-native environments. The role supports the organisation's data strategy especially on Finance and Regulatory domain by ensuring high-quality, reliable pipelines and data models that enable analytics, regulatory reporting, and data-driven decision-making. The post holder plays a key leadership role within the Data Engineering function, shaping architectural direction, ensuring engineering excellence, and partnering with Technology, Architecture, and Business teams across the...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Jul 09, 2026  
Full Stack Developer (.NET)
Full Stack Developer (.NET) / 12 month fixed term contract An established professional services organisation is seeking a Full Stack Developer to join its IT team. You'll play a key role in designing and delivering bespoke applications that support internal teams and clients, working within a collaborative, global agile environment. This is a hands-on development role where you'll contribute to building high-quality web solutions, influence technical direction, and help deliver impactful digital products. Key Responsibilities - Develop and maintain full stack web applications - Collaborate with product owners and agile teams to deliver enhancements and new products - Analyse requirements and define technical solutions - Provide guidance on best practices, technologies, and development approaches - Work closely with stakeholders across the business - Contribute to continuous improvement and knowledge sharing within the team Required Skills & Experience - Strong experience...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Jul 08, 2026  
Software Developer
Software Developer (Dynamics 365 & Power Platform) Rate - £175 (a day) Location - London (Hybrid) Duration - 3 Months (Initially) Ir35 - Inside (Must use an umbrella company) The IT Business applications team play an important role developing and supporting our business applications, enabling us to deliver services to customers and colleagues. As a software developer, you will be responsible for designing, developing, and maintaining end-to-end solutions within the Microsoft Dynamics 365 and Power Platform ecosystem. This role involves customizing Dynamics 365 applications, building Power Pages (portals), developing backend services using .NET/C#, and creating frontend components using modern web technologies. The developer works on integrations, automations, and scalable solutions using Dataverse and Azure services, while collaborating with cross-functional teams to deliver secure, high-quality business applications. Key responsibilities Design, develop, and implement...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Jul 05, 2026  
Data Engineer
Key focus areas: Building scalable data pipelines using Apache Spark & Airflow Working within a cloud-based, containerised environment (Kubernetes) Contributing to a wider data platform modernisation programme Supporting both batch and streaming workloadsTech: Python, Java, Spark, Airflow, SQL, Cloud (AWS/Azure), Kubernetes (Kafka/streaming nice to have) Details: £700/day (Umbrella) 6-month contract 3 days onsite - City of London They're looking for a strong, hands-on engineer (5+ years) with experience in big data / distributed systems and modern data platforms. Please click to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Huxley, please visit Huxley, a trading division of SThree Partnership LLP is...
IR35 Status:
Unknown Status

CV-Library City of London, London Contractor
CL
Jul 04, 2026  
Power Platform Developer
We are currently seeking an experienced Power Platform Developer to join our client's team on a contract basis in London. This is an opportunity to support a large-scale programme within the education sector, contributing to the design and delivery of scalable solutions across the Microsoft ecosystem. If you enjoy hands-on development, working closely with stakeholders, and delivering practical outcomes, this could be a strong fit. Key Responsibilities and Skills Power Platform Development: Strong experience across Power Apps (including model-driven apps), Power Automate, portal pages, solutions, and plugins. Security Configuration: Experience designing and implementing complex, role-based security models within Power Apps. Full Stack Development: Proficiency in JavaScript, HTML, and C#, supporting both front-end and back-end development. Integration: Experience integrating with third-party services using APIs. Azure DevOps: Familiar with managing development pipelines and...
IR35 Status:
Outside IR35

CV-Library City of London, London Contractor
CL
Jul 05, 2026  
Applications Engineer
We are seeking an experienced Application Migration Specialist to support a major technology transformation programme focused on application discovery, migration, deployment and remediation. Key Responsibilities * Assess application estates and migration readiness * Identify dependencies and compatibility issues * Install, configure and support enterprise applications * Deliver application migration, deployment and remediation activities * Support testing, validation and post-migration support * Work with technical teams, application owners and third-party vendors Essential Experience * Application migration and deployment * Application installation and configuration * Dependency analysis and troubleshooting * Application compatibility testing and remediation * SCCM, MECM or Intune * Windows enterprise environments * Large-scale migration or transformation programmes Desirable * Application packaging (MSI, App-V, MSIX) * Azure and...
IR35 Status:
Unknown Status

CV-Library WC1A, Bloomsbury Square, Greater London Contractor
CL
Jul 10, 2026  
Software Developer
Software Developer £45,000 per year London (Hybrid) 12 Month Assignment We are looking for a talented Software Developer to join a high-profile programme, working on impactful, large-scale digital services. In this role, you will design, develop, and enhance software solutions that meet user needs while adhering to modern engineering standards. You'll play a key part in building secure, scalable, and reusable services, contributing to both delivery and continuous improvement of engineering practices. Key Responsibilities Design, develop, and maintain high-quality software solutions Write clean, secure, and well-tested code using a test-driven approach Build reusable, open-by-default components and services Follow and contribute to modern development standards and best practices Support live services, identifying and resolving production issues Collaborate with cross-functional teams to design and integrate systems Optimise development processes and improve delivery...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jul 10, 2026  
Hardware & Embedded Software Engineer
Location: London (Hybrid) Rate: £50-55 per hour + VAT IR35 Status: Outside IR35 About the Opportunity We're supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing to create industry-leading products. We're seeking a Hardware & Embedded Software Engineer to help develop the next generation of wearable technology. The Role This is a highly varied engineering position sitting at the intersection of hardware, embedded software, sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding environments. This role is ideal for an engineer who enjoys...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
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