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Contractor 164
London information technology

164 information technology jobs found in London

CL
Jun 05, 2026  
Data Architect
Data Architect - Housing Association Transformation Contract | ASAP Start | £(Apply online only) per day | Outside IR35 We are seeking an experienced Data Architect to join a major transformation programme within a leading Housing Association. This is an exciting opportunity for a seasoned data professional to play a key advisory and architectural role across enterprise-wide change initiatives. The successful candidate will bring strong experience in classic architecture services, enterprise data governance, data modelling, and transformation delivery, ideally within the Housing Association or Social Housing sector. Key Experience Required Strong background as a Data Architect within large-scale transformation environments Previous experience working within a Housing Association / Social Housing organisation Deep understanding of how data operates within Housing Associations Proven experience delivering: Data Governance frameworks Enterprise Data Models Data Migration...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jun 05, 2026  
Lead Java Tech Role- 3 month Contract
I'm looking for a Lead Backend Software Engineer to shape backend architecture, drive engineering excellence, and guide teams building high‑performance digital products used at scale. This is a hands‑on leadership role where you’ll influence technical strategy, mentor engineers, and ensure backend systems are robust, secure, and future‑ready. What you’ll be doing Lead backend architecture – Define and evolve scalable, secure, high‑performance backend systems Set engineering standards – Champion best practices, secure coding (OWASP), and high‑quality delivery Hands‑on technical contribution – Support critical backend work and review complex code Guide teams & mentor engineers – Facilitate design discussions, code reviews, and technical decision‑making Improve tooling & CI/CD – Enhance pipelines, build processes, and operational workflows Drive continuous improvement – Reduce technical debt and introduce modern backend approaches Support compliance – Ensure systems align...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jun 05, 2026  
DevOps Tester
DevOps Tester +6 months + +Fully remote working +SC cleared - must hold current active clearance +Sole British nationals only - due to nature of the project Skills: +AWS +Kubernetes +Public Sector experience +Testing experience - can set the Testing process up from beginning to end and to be able to own it We're looking for an experienced DevOps Tester, this is a pivotal role in maintaining critical national infrastructure where scalability and resilience are essential. We're looking for a highly skilled DevOps engineer with a strong background in testing (including APIs). The ideal candidate should be self-motivated and results-driven, capable of thriving in an Agile team. You'll need to be comfortable with Confluence for documentation and Jira for project tracking and story management. Your main responsibility will be to develop and structure a comprehensive test framework. This includes creating approaches and plans, gaining approval for those approaches, and...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 05, 2026  
software engineer
Senior Software Engineer Engagement: Full‑Time Contractor Location: London / Hybrid Length: 12 month contract Role Summary We are seeking a software engineer specialising in distributed data systems to design and build low‑latency, high‑volume data processing solutions that underpin regulatory voice compliance assurance across the Bank's strategic data platforms. This is a hands‑on software development role, focused on event‑driven architectures, streaming pipelines, and scalable data matching engines rather than traditional reporting or BI. You will engineer resilient, production‑grade systems capable of processing high‑frequency voice metadata and transactional records at scale, ensuring accuracy, determinism and auditability in compliance controls. You will join a team responsible for delivering mission‑critical compliance technology across enterprise voice platforms, operating in a highly regulated environment where correctness, performance and reliability are...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 04, 2026  
Data Scientist
Data Scientist Location: London Contract type: Contract Rate / Salary: £600-£850 per day PAYE Clearance: Eligible AI: Complex data. Clear thinking. It's knowing what matters. That makes a real difference. The Opportunity We are looking for a Data Scientist to join our client's established and growing data science profession. This is a hands-on role suited to someone with a solid foundation in data science who wants to apply their skills to real problems, learn through delivery, and grow within a supportive professional community. You will work on meaningful, production-focused data science initiatives rather than abstract experimentation. The role offers exposure to multiple projects, access to experienced colleagues, and the opportunity to build depth and confidence by contributing to work that has tangible impact. This environment is far from ordinary - and we're not looking for ordinary. Working Environment You'll typically work across two projects at a...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 04, 2026  
Applied AI Scientist
Applied AI Scientist Location: London Contract type: Contract Rate / Salary: £600-£800 Clearance: Eligible AI: Complex data. Clear thinking. It's knowing what matters. That makes a real difference. The Opportunity We are looking for an Applied AI Scientist to join our client's growing Data Science profession. This is a senior, hands-on technical role for someone who enjoys deep technical delivery and influencing through credibility rather than hierarchy. The role focuses on applying modern AI techniques to real-world problems in complex, constrained environments. You will work closely with users, stakeholders and fellow data scientists to translate real operational needs into effective AI solutions that deliver tangible outcomes. You will often be working in settings where model behaviour, system constraints and human use interact in non-obvious ways. This is not AI experimentation for its own sake. It is about building solutions that work in practice. This...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Jun 04, 2026  
C# .Net Developer
Join Our Amazing Banking Client as a C# .Net Developer! Location: Canary Wharf (hybrid) Contract Duration: Up to 2 years! Umbrella Rate: £400 - £490 Per Day (Based on experience) Interviews: ASAP, first interview is in person this is essential. Are you a passionate C# .Net Developer looking for an exciting opportunity in the Financial Institution? Look no further!We are seeking a talented individual to join our dynamic team based in the heart of London. This is your chance to make a real impact in a thriving industry! What You'll Do: As our C# .Net Developer, you will play a crucial role in developing and maintaining applications that drive our business forward. Your responsibilities will include: Designing and implementing robust, scalable applications using C# and .Net frameworks. Collaborating with cross-functional teams to gather requirements and translate them into technical specifications. Troubleshooting, debugging, and optimising existing applications to enhance...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
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 04, 2026  
Security Consultant - CAF Assurance
3 x Security Consultant - CAF Assurance Location: Remote, with occasional UK travel Rate: £600–£650 per day IR35: Outside IR35 Clearance: Active SC Clearance required prior to start date We are supporting an NCSC-assured cyber security consultancy that has recently won a large government project focused on CAF assurance and cyber resilience. They are looking for three Security Consultants to support the delivery of CAF assessments across a major government environment. This is an excellent opportunity to work on a high-profile programme, helping to assess cyber resilience, engage with key stakeholders, and produce high-quality assurance outputs aligned to NCSC guidance. Key responsibilities: * Deliver CAF assessments across government environments * Facilitate stakeholder interviews and evidence-gathering sessions * Assess cyber resilience against the NCSC CAF framework * Identify risks, gaps, and improvement opportunities * Produce clear, high-quality assurance reports...
IR35 Status:
Outside 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  
Technical Project Manager - Risk
Technical Project / Programme Manager - Market Risk Technology Hybrid, London - 3 days per week 6-month Contract £500 - £600 per day InsideIR35 A leading financial services organisation is seeking an experienced Technical Project / Programme Manager to support the delivery of a strategic Risk Technology platform within a Global Markets environment. This role will suit someone who can operate across Business, Risk, and Technology teams, acting as a hybrid PM / BA while driving delivery across complex, data-intensive programmes. Key responsibilities include managing end-to-end delivery of market risk and data platforms, facilitating stakeholder engagement across Front Office, Risk, Quant and Technology teams, and helping shape solutions involving large-scale data generation, governance, controls, reconciliation, and workflow optimisation. The successful candidate will have strong experience within Investment Banking or Global Markets environments and a solid understanding of...
IR35 Status:
Unknown Status

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  
Umbraco Developer | £350 – £375 | Outside IR35 | 2 Months | Fully Remote
Umbraco Developer | £350 – £375 | Outside IR35 | 2 Months | Fully Remote   We’re recruiting for an experienced Umbraco Engineer for a 2-Month contract role to start next week! This short term contract position will play a vital part in taking ownership of Umbraco stack projects for a historic client of ours. This position is determined as Outside IR35 and is offered on a fully remote basis.   Key Requirements Seasoned Umbraco contractor delivering high-quality solutions in fast-paced project environments. Strong expertise across Umbraco, .NET, ASP.NET Core, C#, SQL. Proven experience building scalable CMS solutions integrated with APIs and Azure. Comfortable owning end-to-end delivery, collaborating with designers, stakeholders, and developers. Able to hit the ground running on complex, high-traffic Umbraco projects.  What to do next   If this Umbraco Developer role sounds like a good fit and you’d like to know more, please apply with your most up‑to‑date CV and I’ll be in...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 31, 2026  
Product Manager
As a Product Manager for AI Data Products, you will be a founding architect of our modern data ecosystem. Operating within the Data Enablement team, your mission is to transform raw data into a strategic asset that powers our Global Client Groups across Sales, Marketing, and Digital Experience. What We're Looking For Experience: 5+ years in Product Management with a track record of launching data platforms or AI-enabled products. Domain Expertise: Proven experience in B2B or B2B2C environments, ideally within Financial Services, Asset Management, or a similarly regulated industry. Technical Proficiency: Hands-on experience with Data Lakes/Warehouses (e.g., Snowflake), Feature Stores, and MLOps concepts. Data Literacy: Ability to perform data profiling and analysis using SQL and Python to drive product decisions. Communication: Exceptional ability to influence a diverse audience, from C-suite leaders to deeply technical engineers and data scientists. Education: Bachelor's...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 31, 2026  
Backend Java Engineer
AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Backend Java Engineer for a 6 month contract based in London (2 days per week) with remote working available (hybrid). Purpose of the role: Join one of the core cross...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 31, 2026  
Senior UX Researcher
Job Title Senior UX Researcher - Store Experience (Cash Management) Location London / UK Based Remuneration £550-£650 per day (via Umbrella Company) Contract Details Temporary, 6 months, Full Time Responsibilities Research Ownership & Delivery Own and lead UX research for the cash management and handling programme, with support from a Senior Research Lead. Develop a deep understanding of current cash handling processes used by store colleagues. Identify user groups, roles, motivations, and constraints related to cash systems. Map out end-to-end cash management journeys in their existing state ("as-is"). Insight & Impact Identify strengths and weaknesses in current cash management tooling and processes. Surface user needs, pain points, and job-to-be-done insights to inform the design of a new in-house system. Deliver structured, evidence-based findings that directly inform UX design, product decisions, and system architecture. Collaboration Work closely with UX...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 31, 2026  
Agile Delivery Manager - Data
Agile Delivery Manager - Data £(Apply online only) per day (Outside IR35) London / Hybrid / 3 days a week We're currently working with a retail business undergoing a major data transformation programme and are looking for an Agile Delivery Manager to support the delivery of their data modernisation workstream. You'll be responsible for delivery and ensuring successful execution of the wider data transformation roadmap. You'll need to have delivered a data transformation or modernisation project before as well as having done so in an agile way. You'll also need to be a scrum master or scrum certified as this role will require you to lead on ceremonies. We're looking to speak with candidates who possess some of the below: Strong Agile Delivery Management experience within data-focused environments. Proven experience delivering data transformation or data modernisation programmes. Experience working within retail or similarly fast-paced customer-centric environments. Scrum...
IR35 Status:
Outside 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 31, 2026  
Technology & Solution Lead – Workforce Management
WFM Technology & Solution Lead London UKG / Dayforce Overview We are currently supporting a large-scale transformation programme seeking an experienced WFM Technology & Solution Lead with strong expertise across workforce management, scheduling, absence management, and enterprise solution architecture. This role will play a key part in defining and owning the end-to-end technology solution across Time & Attendance, Scheduling, and Workforce Management platforms. The successful candidate will work closely with architecture, integration, configuration, and business teams to ensure scalable, secure, and high-performing solutions are delivered in line with enterprise standards and operational requirements. This is an excellent opportunity to join a fast-paced programme environment with significant transformation activity and long-term project scope. Responsibilities Define the end-to-end solution architecture for T&A and Scheduling (core modules, interfaces, data...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
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