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Contractor 52
Information Technology Unknown Status Harpenden

52 jobs found in Harpenden

CL
Mar 13, 2026  
Configuration Manager
Configuration Manager Stevenage 12 Month Initial Contract   Overview of department: Configuration Management is pivotal to success in developing and delivering engineered products to our customers and frontline users. Through the controlled application and compliance of processes, we give our programmes confidence and assurance in all products that we produce.   Description of the Role Experienced Configuration professional with an ability to provide technical support to the Configuration Management team. Your ability to build networks and foster strong relationships with the team to review, develop and deliver Configuration Management processes and procedures, as well as supporting and technically coaching project Configuration Managers to deliver technical excellence contributing towards the overall success of our business programmes.   What we’re looking for A proven track record of experience within engineering organisations or operational domains, with a strong technical...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Feb 11, 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
Dec 28, 2025  
Configuration Engineer
Configuration Engineer Stevenage – Hybrid Working 6 12 Month Plus Contract Working with a Globally known Manufacturing Company within the Defence industry. They are actively seeking a Configuration Engineer on a 6 - 12 month plus contract within the Stevenage area.   Responsibilities: The Senior Configuration Engineer is responsible for the Product definition and/or Configuration Management of a minor project or major parts of a project.  Skillset/experience required: Knowledge of Configuration Management and the application of these within and demanding yet professional engineering environment. The ability to build rapport with stakeholders as well as positively promote the Configuration Management group through supportive and pro-active approach with internal customers. Awareness of relevant internal and external customer requirements and standards. Reflection of engineering input, through the engineering change process, into the design definition / structure,...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Apr 12, 2026  
Senior Developer
Senior Developer Summer-Browning Associates is currently assisting our Central Government client, who is looking for a Senior Developer for an initial six-month assignment. Location: Milton Keynes Essential Skills: The ideal candidate will hold active SC Clearance and have a proven background in software engineering, demonstrating the following skills and experience: Proficiency in developing production-grade applications utilising Python. Experience in designing scalable backend services using Golang. Expertise in constructing enterprise-grade applications using C#/.NET. Competence in building RESTful APIs and managing microservices-based architectures. Strong familiarity with Git-based version control systems and CI/CD pipelines. Comprehensive understanding of Agile methodologies and security best practices. Familiarity with secure environments in the public sector or defence is highly advantageous. To apply, please submit your latest CV for review
IR35 Status:
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CV-Library Milton Keynes, Buckinghamshire Contractor
CL
Apr 09, 2026  
Oracle Systems Admin Manager (IT - Digital Transformation)
Position: Oracle Systems Admin Manager Location: Hornton Street, W8 7NX Start Date: ASAP Contract Duration: 2+ Months Working Hours: 37 hours per week, Monday to Friday, 09:00–17:00 Pay Rate: £389.84 Per Day                                                                                           Job Reference: (phone number removed) Job Responsibilities Lead and manage Oracle systems administration activities within the IT Digital Transformation programme. Ensure system stability, performance, and security across all Oracle environments. Oversee deployment, upgrades, patches, and configuration changes for Oracle applications. Collaborate with IT teams and business stakeholders to support project delivery. Develop and maintain operational documentation, policies, and procedures. Provide guidance and mentoring to junior administrators and technical teams. Monitor system performance, identify issues, and implement solutions proactively. Manage vendor relationships...
IR35 Status:
Unknown Status

CV-Library Kensington, London Contractor
CL
Apr 10, 2026  
Senior Technical Program Manager
Job Title: Senior Technical Program Manager Contract: 6 Months Location: London (Hybrid - 3 days onsite) Overview We are working with a large, complex organisation undergoing a multi‑year digital and technology transformation across its supply chain and logistics landscape. They are seeking an experienced Senior Technical Program Manager to provide strategic leadership and hands‑on delivery across multiple high‑impact technical programmes. In this role, you will own the end‑to‑end lifecycle of sophisticated technical initiatives, from early concept through to successful delivery. You will act as a true partner to Product and Engineering leadership, balancing cross‑functional dependencies, driving alignment, and ensuring delivery remains smooth, efficient, and outcome‑focused. This is a senior, visible role requiring strong technical foresight, excellent stakeholder management, and the ability to operate confidently in a complex, fast‑moving environment. You will lead through...
IR35 Status:
Unknown Status

CV-Library West End, London Contractor
CL
Apr 11, 2026  
Senior Agentic AI Consultant – Python / Full-Stack (London, Hybrid)
Senior Agentic AI Consultant – Python / Full-Stack (London, Hybrid) We’re looking for a Senior Agentic AI Consultant to join our London-based team on a hybrid basis. This is a hands-on role for someone who thrives on building, scaling, and deploying AI solutions end-to-end. What you’ll do: * Design and develop agentic AI systems using Python. * Build full-stack applications to integrate AI models into real-world workflows. * Collaborate with clients and internal teams to deliver high-impact AI solutions. * Mentor and guide junior engineers on best practices What we’re looking for: * Strong Python expertise and experience with AI/ML frameworks. * Full-stack development experience (frontend + backend). * Proven track record of delivering AI projects from concept to deployment. * Senior-level problem-solving skills and ability to work independently. Why join us: * Work on cutting-edge AI projects. * Hybrid London-based environment (flexible remote...
IR35 Status:
Unknown Status

CV-Library EC4, Old Bailey, Greater London Contractor
CL
Apr 08, 2026  
Senior Data Engineer
Senior Data Engineer – (Tick data, Time-Series; kdb+ / Q ) 3-6 months initially. London 3 days onsite   Are you a Data Engineer with a background in systematic trading who has worked with granular tick market data? Have you built pipelines to allow tick data to be ingested into a time series tech stack utilising kdb+ and Q? If so keep reading!   Certain Advantage are recruiting on behalf of our London based trading client for a Data Engineer to focus on building a scalable data platform for algorithmic trading.   You’ll Identify and implement solutions for Quants and Traders, providing data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics.   Your Project Work: Identify and implement solutions to provide data that will be used to improve strategies performance and produce clients TCA, pre- and post- trade analytics. Work with business Stakeholders to build new and maintain existing real-time and historical data services and...
IR35 Status:
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CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Apr 12, 2026  
Test Analyst
We are looking for a Test Analyst with experience in SAP HCM and Finance modules, along with hands-on experience using testing tools such as Azure DevOps, JIRA, or similar platforms. Contract Duration: 3 to 4 months Experience: * Minimum of 5-7 years of experience as a Test Analyst, with a strong focus on SAP HCM & Finance . * Proven experience in designing and executing test plans and test cases for SAP HCM & Finance implementations. Technical Skills: * Proficiency in SAP configurations and processes. * Experience with testing tools such as Azure DevOps, JIRA, or similar. * Strong understanding of testing methodologies and best practices. Soft Skills: * Excellent analytical and problem-solving skills. * Strong communication and interpersonal skills. * Ability to work independently and as part of a team in a fast-paced environment. * Detail-oriented with a strong focus on quality. Preferred Qualifications: * ISTQB certification or...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Senior Ruby Developer
Contract Lead Ruby Developer– (UK Remote) 📍 100% Remote (EU-Based Candidates Only) ⏳ 12-Month Contract We are supporting a leading organisation in the insurance sector as they scale and modernise their cloud‑based core platform. They are looking for an experienced Senior Ruby Engineer to join on a 12‑month contract, working fully remotely from anywhere within the UK. 🔧 Role Overview You’ll be a senior member of an engineering squad building, enhancing, and optimising a modern cloud-native system used across a major insurance operation. This is a hands‑on development role where you’ll contribute to new features, performance improvements, integrations, and architectural evolution within a high‑performing engineering culture. 💡 What You’ll Be Working On Developing and maintaining backend services using Ruby / Ruby on Rails Building scalable, maintainable components within a cloud-native architecture Collaborating with product, cloud, and DevOps teams to deliver high‑impact...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Data Architect - NHS Foundry - Contract
Data Architect – NHS Foundry  - Contract  Contract | £550 per day | Hybrid (UK-based) Morela is supporting one of the UK’s fastest-growing data consultancies, delivering high-impact transformation projects across the public sector. We are looking for a Data Architect with NHS Foundry experience to join on a contract basis, working on complex, large-scale healthcare data programmes. The Role Design and architect scalable, end-to-end data solutions Lead on data integration, modelling, and platform design using Palantir Foundry (NHS Foundry) Work closely with stakeholders to translate business challenges into technical solutions Provide architectural guidance across data platforms, pipelines, and workflows Support delivery teams to ensure best practice and high-quality outcomes What We’re Looking For Proven experience as a Data Architect within complex environments Strong exposure to NHS Foundry / Palantir Foundry Deep understanding of data architecture, integration, and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Data Engineer (Azure)
Your new company Working for a renowned financial services organisation Your new role Seeking a Data Engineer to help design and maintain scalable batch and near‑real‑time ingestion pipelines, modernizing legacy ETL/ELT processes into Azure and Snowflake, and implementing best‑practice patterns such as CDC, incremental loading, schema evolution, and automated ingestion frameworks. They build cloud‑native solutions using Azure Data Factory/Synapse, Databricks/Spark, ADLS Gen2, and Snowflake capabilities including stages, file formats, COPY INTO, and Streams/Tasks to support raw‑to‑curated data modelling. The role involves creating reusable components and Python libraries to accelerate delivery across teams, enforcing data quality through validation, observability, and robust pipeline design, and ensuring strong security, governance, and documentation standards. Collaboration within agile workflows-including CI/CD, code reviews, and iterative planning-is also key to delivering...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Security Architect
Summer-Browning Associates is currently supporting our central government client, who is seeking a Security Architect. This position is for an initial 12-month contract assignment, with the possibility of extension. Location: London The ideal candidate will hold an active security clearance and have a strong background in Security Architecture, along with the following skills and experience: A solid understanding of High-Level Security Architecture (HLD) and a secure-by-design approach. Experience leading security architecture for large-scale cloud hosting (specifically Azure and GCP) in high-threat government Tier 2 secure environments. Extensive knowledge of security architecture, including identity management, device security, workstation protection, cloud hosting, collaboration tools, networking, cryptography, operations, and data governance. Strong understanding of secure DevOps practices, CI/CD controls, and Infrastructure as Code (IaC) hardening. Experience applying...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 12, 2026  
Technical Lead
Technical Lead - Active SC, AWS, NodeJS, Java / Scala £Market rate London / Remote (Must be UK Based) My client is an International Consultancy who require a Technical Lead with Active Security Clearance (SC) and expertise across Typescript, NodeJS, AWS (Cloudwatch, Lambda, SQS, S3 etc), Terraform, PostgreSQL and Java / Scala to work closely with an end customer. Key Requirements: Active Security Clearance (SC) Demonstrable experience as a Technical Lead, providing Technical Leadership, Coaching and Mentoring Technical skills - Typescript, NodeJS, AWS (Cloudwatch, Lambda, SQS, S3 etc), Terraform, PostgreSQL and Java / Scala Working knowledge of collaboration tooling (Jira / Slack /Teams / Figma) Involvement in Release preparation Excellent communication skillsNice to have: Immediate availability Flexible approach towards hybrid working Open to convert to being a permanent employee after initial contract period If you're interested in this role, click 'apply now' to forward an...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 11, 2026  
Senior Golang Developer
Tank have been engaged by a client to recruit a Contract Senior Go / Golang Engineer to support the delivery of advanced, production-grade systems. 12+ Month Contract Hybrid working - London Key Skills: Proven experience building backend or network-facing services using Go Strong Python skills, ideally within machine learning or computer vision environments Familiarity with frameworks such as PyTorch or TensorFlow (or a willingness to learn) Experience with containerisation and orchestration tools such as Docker or Kubernetes Comfortable working in Linux-based environments Solid understanding of version control best practices (e.g. Git) If this opportunity is of interest, please apply or get in touch for more details
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 11, 2026  
SAP S/4HANA Finance Data migration Lead
Job Title SAP S/4HANA Finance Data Migration Lead Start Date: ASAP Location: London (hybrid) Duration: 3 months (possibility of extension) Role Overview We are seeking a highly experienced SAP S/4HANA Finance Data Test Lead to own and drive the data validation and reconciliation testing strategy across a major SAP Finance transformation. The organisation is migrating from SAP ECC to SAP S/4HANA, where high‑quality, reconciled, and audit‑compliant financial data is critical to programme success. This role will work closely with Finance SMEs, D&T teams, Data Migration Leads, and System Integrator (SI) partners to ensure data integrity across all testing phases and through to go‑live. The successful candidate will bring deep SAP Finance data expertise, alongside experience leveraging AI‑driven tools to accelerate reconciliation, validation, and defect analysis. Key Responsibilities Data Test Strategy & Governance Define and own the Finance data migration strategy....
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 11, 2026  
AI Specialist with Azure
AI Specialist (Azure) Contract Remote £500-£550pd (Outside) Initial 6 Month Contract   We are currently seeking an experienced AI Specialist with strong expertise in Microsoft Azure to support a key project. This is an exciting opportunity to work on cutting-edge AI solutions within an enterprise environment.   Key Responsibilities: Lead the setup and implementation of AI Foundry solutions Develop and deliver AI-driven capabilities using Azure technologies Collaborate with cross-functional teams to ensure secure and scalable solutions Ensure compliance with enterprise data governance and security standards Provide clear technical guidance and communicate effectively with stakeholders  Essential Skills & Experience: Proven experience deploying and configuring AI Foundry Strong knowledge of the Power Platform suite Solid understanding of enterprise networking, including identity and access management Experience in data governance and compliance frameworks In-depth technical...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 11, 2026  
Lead Architect - D365, Azure Medical Sector
Contract Lead Architect (Azure and D365 Expertise) Contract OIR35, UK  Hybrid - office weekly / few times per month: Must have Digital Health / Pharma Sector and MS D365 / Azure experience A leading organisation is seeking a visionary Lead Architect to define and drive its enterprise-wide architecture strategy and aligned in flight projects This role is pivotal in shaping a unified, scalable,  technology platform that supports Patient Journey and Digital product innovation. Experience of Transformation alongside Architecture is desirable. It’s about setting the architectural principles, structure, and systemic coherence across Azure, D365, infrastructure, data, applications, and integrations — enabling high-quality experiences for patients and healthcare professionals. Essential Technical Skills: Strong Azure Cloud expertise Microsoft Dynamics 365 CRM & ERP platforms Customer / Patient-facing applications & healthcare UX design Data governance & analytics with EU...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Solution Architect
Job Title:Solution Architect Location: London Salary/Rate: £495 - £525 Start Date: 04/05/2026 Job Type: Contract Company Introduction A global property and casualty insurance provider headquartered in Boston, Massachusetts. Founded in 1912, it operates through a network of subsidiaries and affiliates, offering a wide range of personal and commercial insurance products, including auto, home, workers? compensation, and specialty lines. Job Responsibilities/Objectives 1.Lead and manage software development projects using Java, Python, Typescript, AWS, React JS, Angular, and other technologies. 2.Collaborate with cross-functional teams to define project scope, objectives, and deliverables 3.Create the high-level design (or solution architecture documents) for the business requirements 4.Proficient using architectural principles and patterns, variety of solution types, detailed design patterns, best practices, integration choices etc Required Skills/Experience 1.Strong...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Senior Technical Delivery Manager
OverviewWe're looking for a hands‑on Technical Delivery Manager to lead end‑to‑end delivery of a key technology product or platform. This role combines delivery ownership, product leadership, and technical credibility. You'll work closely with developers, analysts, and senior business stakeholders, taking full accountability for outcomes and team performance. Details: Location - London Duration - Initial 6 months Hybrid - 2 days / week in the office Key Responsibilities Own delivery from inception through build, release, and BAU. Prioritise and maintain the product backlog and roadmap. Work directly with developers and challenge technical decisions where needed. Understand system design, data flows, APIs, and CI/CD processes. Provide clear, structured updates to senior stakeholders. Lead and line‑manage a team of software engineers. Ensure operational readiness, incident oversight, and continuous improvement. Experience & Skills Proven experience delivering complex...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
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