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Contractor 39
Inside IR35 London information technology

39 information technology jobs found in London

CL
Jun 04, 2026  
Solution Architect
Role: Solution Architect Location: London (1 or 2 days per week on-site) Duration: 6 Months Day rate: £700 Inside IR35 Active SC clearance required Job requirements: Own the solution architecture for the platform and new data visualisation components, embedding scalability, security, and performance. Align with DSA architectural governance, define project standards, conduct architectural reviews, and document clear design decisions. Lead the technical team of 6 across Architecture, DevOps, Data and Development disciplines, ensuring strategic alignment and technical delivery. Act as an escalation point for technical blockers, disseminate leadership communications, and foster their development on the project through guidance and mentoring. Collaborate closely with Delivery Leads, Business Analysts and Product Leads to advise on technical complexity, refine requirements based on feasibility and delivery timelines, and support stakeholder engagement
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jun 03, 2026  
Data Architect (SC Cleared)
Data Architect 6-Month contract - Inside IR35 - up to £700 per day London based - hybrid working - 2/3 days onsite Candidates must hold current and active SC Clearance We are seeking a Data Architect to lead the design and delivery of secure, cloud-based data platforms for the client. The role combines architectural strategy with delivery oversight - shaping target-state architectures while ensuring they are implemented pragmatically within regulated, security-conscious environments. This position will suit an architect who can move comfortably between traditional enterprise data approaches and modern patterns such as lakehouse, streaming, data mesh and ML-enabled platforms - and who values clarity, governance and technical rigour. Candidates must hold active SC clearance. What experience you'll bring: Leadership: Recent experience as a Lead Data Architect / Data Solutions Architect or equivalent senior role. Ability to build relationships and operate at a senior...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 31, 2026  
Booking and Messaging Java Developer
Java Backend Developer (Booking & Messaging) Rate: £625/day (Inside IR35) | Duration: 6 Months | Location: London (Hybrid) The Role Join a high-performance eBond Booking and Messaging team managing a complex trading platform. You will build and adapt trading workflows , ensuring seamless connectivity to external exchanges and managing trade booking systems. The environment features a modern microservices architecture, reactive programming, and a fully automated CI pipeline with weekly releases. Technical Profile Java Expert: Java 8+, Multithreading, and RESTful Webservices. Messaging Pro: Deep knowledge of Pub-Sub and brokers like 60East AMPS, Kafka, or RabbitMQ. Reactive & Agile: Experience with Functional Reactive Programming (RxJava/Flow API) within an Agile/Scrum setup. Data & Systems: Proficiency in Spring, SQL (Sybase/PostgreSQL), and distributed systems (Zookeeper). Performance: Skilled in low-latency communication and debugging complex distributed...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 31, 2026  
Infrastructure Support Engineer
Infrastructure Support Engineer Location: Hybrid / UK-based Contract Length: 6 months IR35 Status: Inside IR35 Overview We are seeking a proactive and motivated Infrastructure Support Engineer to support and maintain critical infrastructure services across both on-premise and cloud environments. This is a hands-on role suited to someone with some commercial IT support experience who is looking to develop their skills across infrastructure, Microsoft technologies, and enterprise systems. You will work closely with senior engineers to support day-to-day operations, assist with upgrades and maintenance activities, and help ensure the stability and performance of key infrastructure platforms within a regulated environment. Key Responsibilities Support physical, virtual, and cloud-based infrastructure environments Monitor, troubleshoot, and maintain Windows Server platforms and core infrastructure services Assist with infrastructure upgrades, patching, migrations, and routine...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 31, 2026  
Technical Solutions Consultant (II) GOG1JP00004171
Role : Technical Solutions Consultant Location : London, UK Type : Contract(Hybrid - Inside IR35)Job Description Technical Skills Web Technology Expertise: Strong proficiency in JavaScript, HTML, and CSS is essential. Code Debugging: Ability to read, understand, and debug complex, potentially minified code from external partner websites. Technical Troubleshooting: Experience with Chrome Developer Tools, API integrations, and investigating error codes. Familiarity with Web Standards: Knowledge of RSS feeds, crawling (Googlebot), and authentication protocols (OAuth) is highly desirable. Coding Background: While not a pure software engineering role, the hiring manager noted that web developers often perform well in this position. Experience & Soft Skills Professional Experience: Ideally 3 to 5 years of experience in a similar technical support or consulting role. Communication & Stakeholder Management: Excellent soft skills for interacting with external partners...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 29, 2026  
Quality Engineer - AI (Contract)
Quality Engineer - AI Platform Engineering Employment Type: Inside IR35 Contract Duration: 6 Months Rate: £650 - £750/ Day Location: Central London, Hybrid (3 Days Onsite per Week) Opportunity Overview A global organisation is building a centralised AI enablement and platform engineering function focused on delivering scalable, secure, and governed AI capabilities across the enterprise. This role sits within a programme delivering enterprise-grade agentic AI infrastructure, including internal AI assistants, retrieval and search services, extensibility frameworks, and governance tooling. Programme Overview The programme is focused on delivering a production-grade internal agentic AI platform, including: Development of an enterprise AI assistant capable of reasoning, planning, and tool orchestration Operation of enterprise retrieval, search, and grounding services for approved data sources Delivery of a secure internal gateway layer providing discovery, observability,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 29, 2026  
Full Stack Software Engineer
Job Title Full Stack Software Engineer (x2) Day Rate £450/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for two experienced Senior Full Stack Software Engineers to join a high-performing engineering team. You will play a senior role in the design and delivery of modern, scalable web applications, bringing strong full stack expertise across Next.js, TypeScript, and AWS in a programme delivering meaningful impact across NHS services nationwide. KEY RESPONSIBILITIES Design and build high-quality, scalable full stack applications using Next.js and TypeScript Develop and maintain cloud-native solutions on AWS, following well-architected and security best practices Design, build, and consume RESTful APIs, ensuring performance, reliability, and security standards are met Write and maintain automated end-to-end test suites...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 29, 2026  
Full Stack Java Developer
Job Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for an experienced Senior Java Developer to join a high-performing engineering team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development of robust, scalable Java-based applications across the programme Build and maintain cloud-native solutions on AWS, applying well-architected principles throughout Design, develop, and test REST APIs to a high standard, ensuring performance, reliability, and security Use Postman for API testing, documentation, and validation across development and test environments Contribute to...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
May 29, 2026  
Java Backend Developer - London, UK (Fully REMOTE)
Role: Java Backend Developer with Data Platform Type: 6 Months Contract Location: London, UK (Fully REMOTE) Working Model: Fully REMOTE Payrate: £450 - £550 per Day on PAYE £530 - £630 per Day on RUPAYE £650 - £750 per Day on Inside IR35 via Umbrella The Role: Join our Data Infrastructure team to drive large-scale pipeline migrations and core platform development across our Flink and Lakehouse architecture. We are looking for an execution-focused engineer who can jump into existing codebases, work autonomously, and ship high-quality code reliably. Essential Skills: Strong Java, Python, Go, and GCP experience. Ability to move quickly in ambiguous environments without waiting for direction.Bonus Points: Experience with JVM-based frameworks (Flink, Beam, Dataflow, or Spark). Familiarity with BigQuery, SQL, Scala, and DevOps/Cloud infrastructure (Kubernetes). Prior experience with pipeline migrations and cost optimizationThis is an urgent vacancy with a deadline where the hiring...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jun 05, 2026  
DevOps Platform Admin
DevOps Platform Administrator Location: Remote (UK-based) Contract: 12 months (Inside IR35 - umbrella only) Security Clearance: Active/eligible SC clearance required Are you an experienced DevOps Platform Administrator looking for an exciting opportunity to work with a reputable client? We are hiring for a skilled professional to manage and optimise the client's tooling infrastructure, ensuring platforms like GitLab, Jira, and Confluence run smoothly, securely, and efficiently. This is a fantastic chance to contribute to critical infrastructure while supporting internal teams with configuration, access, and platform management. What you'll be doing: Managing and maintaining GitLab, Jira, and Confluence platforms to ensure high availability and optimal performance Supporting internal teams with platform configuration, access management, and troubleshooting Ensuring the security and integrity of the tooling infrastructure, adhering to best practices Assisting with cloud...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Jun 05, 2026  
SIT Test Manager
SIT Test Manager 12 months Remote Inside IR35 - umbrella only Active SC clearance required, eligible candidates will be considered Role overview: The SIT (Systems Integration Testing) Test Manager is responsible for leading and managing all aspects of SIT within the programme, overseeing readiness and preparation activities, creating and managing the test plan and coordinating the execution of the phase in alignment with the objectives of the phase. The SIT Test Manager will be an experienced professional with a strong background in software quality assurance and testing. Key responsibilities will include test plan development and execution, coordination of testing activities and resources, oversight on the defect management of SIT defects, stakeholder collaboration, reporting and process refinement and phase closure activities. Skills: Good leadership skills and ability to manage stakeholder relationships Good organisational skills Excellent attention to detail...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Jun 04, 2026  
Project Manager - AI/Cloud/ML
Cloud/AI/ML/Transformation/Agile Role: Project Manager (Contract) - AI / Machine Learning Programme Day Rate: Up to £585 a day (Inside IR35) Contract Length: Until March 2027 (extension likely) Location: Hybrid - 2-3 days per week onsite (London) Start: ASAP Overview We're looking for an experienced Project Manager to support the delivery of a machine learning proof-of-concept within a large-scale operational environment. This is a high-impact role focused on stakeholder coordination, system integration, and delivery of AI-driven insights, with strong potential to expand into broader AI initiatives over time. Key Responsibilities Coordinate multiple stakeholder groups across different departments with varying priorities Manage integration points between a machine learning model and existing enterprise systems Work with operational KPIs and dashboards used at scale across a nationwide network Build strong relationships proactively and drive clarity in an environment where...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
Jun 04, 2026  
AI Technical Architect_ Active SC Clearance
Job Title: Lead AI Technical Architect (Generative AI) Location: Remote (UK Based) Contract Length: 6 Months (High potential for extension) Rate: £550 per day (Inside IR35) Security Clearance: Active SC Clearance Required The Opportunity We are seeking a heavyweight AI Technical Architect with a 15-year pedigree in IT and a deep specialization in the Azure ecosystem. This is a pivotal role sitting at the intersection of Enterprise Architecture and cutting-edge Generative AI. You will be responsible for technical governance, stakeholder management, and the hands-on design of sophisticated AI solutions for a high-profile project. The Role As the Lead Architect, you will guide a dedicated team through the complexities of deploying and fine-tuning generative models. This isn't just a "high-level" role-we need someone who can design the blueprint and then dive into the Python/PySpark code to ensure the foundation is rock solid. Key Responsibilities: Architect & Design: Lead...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
May 31, 2026  
Data Scientist
Data Scientist - (Generative AI & LLMs) 📈12 Months Contract Inside IR35 📍London - 2 days a week in the office 💰£500 a day A top tier consultancy firm is currently seeking an experienced Data Scientist to join a dynamic team focused on leveraging Large Language Models (LLMs) and advanced machine learning to drive tangible business value. This is a pivotal role where you will take ownership of the end-to-end model lifecycle-from initial conceptualisation and prompt engineering to production deployment. As a Data Scientist, you will act as the technical architect behind our AI solutions. You won't just be building models; you will be defining how AI transforms our operations. Key Responsibilities: Work directly with stakeholders to understand their challenges, define what needs to be built, and set the benchmarks for a successful project. Select the best AI models and language frameworks for the job and design the training strategies to ensure the AI performs exactly as...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
May 31, 2026  
Cloud Network Architect
Cloud Network Architect Initial 3-month Contract Fully Remote £650 - £700 | Inside IR35 We are working with a global IT Services Provider seeking an experienced Cloud Network Architect to support the migration from FortiGate to Azure Firewall within a complex enterprise environment. Responsibilities: Lead the design and migration from FortiGate to Azure Firewall Assess existing Azure Landing Zones and hybrid network architecture Design secure and scalable Azure networking solutions Manage routing design across Azure Firewall, VPN Gateway and ExpressRoute Perform firewall ruleset and feature parity analysis Identify risks, gaps and mitigation strategies throughout the migration Provide technical governance and architectural oversight across delivery teams Work closely with customer stakeholders, engineers and third-party partners Requirements: Proven experience migrating Azure FortiGate to Azure Firewall Strong experience with Azure Networking & Security Architecture...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
May 29, 2026  
Network Architect - AWS, Azure, Cisco
I am recruiting for a Network Architect to work 1-2 days a week in London, remaining time remote. The role falls inside IR35 so you will be required to work through an umbrella company for the duration of the contract. Candidates must have experience of AWS and Azure. It is also essential for you to have experience of Cisco. The environment is a mix of AWS, Azure and on-prem with predominantly Cisco Physical and virtual appliances. You must be able to assess and 'unpick' what has been completed in AWS and Azure and be comfortable documenting this. You must then be able to propose any improvements focusing on IoC and Automation. You must also have expertise in cloud network security. Please apply ASAP if you match the requirements
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
May 28, 2026  
Salesforce Data 360 Architect (SC Cleared)
Salesforce Data 360 Architect 6 Months Mostly remote- 3-4 days per month in London £Market rate (Inside IR35) ***Due to the nature of the client and the role, the selected candidate will have ACTIVE SC Clearance*** My client, a government body are seeking a Salesforce Data Cloud Architect to join their Salesforce Practice in UK&I. This role will play a key part in driving data driven innovations, providing data-driven insights and enabling data-driven decision-making for our enterprise customers. Key Responsibilities Lead Salesforce Data Cloud solution design and implementation Act as the SME for Salesforce Data Cloud/Data 360 Design scalable data models, integrations, and customer data strategies Work with stakeholders to translate business requirements into technical solutions Support pre-sales, solution estimation, and best practice guidance Provide technical leadership across full project lifecycles Mentor teams and drive knowledge sharing Required Experience...
IR35 Status:
Inside IR35

CV-Library City of London, London Contractor
CL
May 29, 2026  
Payroll Manager
Interim Payroll & Employee Payments Lead – Contract Location: London (Hybrid) Contract length: 6 months Rate: £529.54 per day (Umbrella only) IR35: Inside An opportunity has arisen for an experienced Interim Payroll & Employee Payments Lead to support a large public sector organisation during a critical period of payroll and ERP change. This is a senior oversight role focused on governance, assurance, and compliance within an in‑house payroll environment. It is not a payroll processing or data‑entry position. About you Suitable candidates will demonstrate: * Senior experience leading in‑house payroll functions in large organisations * Hands‑on SAP and SuccessFactors payroll experience (essential) * Public sector background with strong governance awareness * Detailed payroll knowledge including HMRC compliance, PSA, and year‑end processes * Experience overseeing complex payroll structures (weekly, four‑weekly, and/or monthly) * Experience supporting ERP...
IR35 Status:
Inside IR35

CV-Library Stratford and New Town, Greater London Contractor
CL
May 16, 2026  
Contract C# Software Engineer
Contract C# Software Engineer Near Wimbledon   6-month contract Software Engineer role developing C# Windows applications that interface with hardware.  This role is inside IR35 and requires on-site work 3 days per week (full time for the first few weeks). C# Software Engineer skills required - Good analytical skills and experience of code and design review for large projects. Experience of multi-threaded and distributed applications, preferably with an understanding network of protocols. Strong Experience in developing Windows desktop applications in C# Interfacing with hardware/physical products .NET environment, Windows Forms, TCP/IP & UDP protocols  Please apply or call for more information
IR35 Status:
Inside IR35

CV-Library Wimbledon, London, UK Contractor
CL
May 31, 2026  
EndPoint Engineer
Endpoint Engineer (Contract) Location: Hemel Hempstead (Onsite) Rate: £600-£700 per day (Inside IR35) Clearance: MOD DV required Role Overview Lead the day-to-day technical operations of the Windows/Endpoint team, providing subject matter expertise across endpoint security and infrastructure. The role combines hands-on engineering, team leadership, and strategic input to support operational delivery within a secure, enterprise environment. Key Responsibilities Lead and mentor a team of engineers, developing SME capability and aligning skills with digital strategy Support project delivery: solution design, estimation, implementation, and technical validation Manage and respond to incidents in line with SLAs, including escalation where required Collaborate with architects and designers to recommend and validate technical solutions Contribute to pre-sales activities and cost/effort estimation Maintain accurate documentation (operational procedures, user guides, project...
IR35 Status:
Inside IR35

CV-Library Hemel Hempstead, Hertfordshire Contractor
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