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Contractor London information technology

106 information technology jobs found in London

CL
Apr 01, 2026  
Lead UI Developer
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Lead UI Developer / React Contract: Initial 12-Month Contract with potential to extend. Location: London Rate: £800 inside umbrella What You'll Do: As the Lead UI Developer, you will spearhead the development of our flagship Triforce Credit Project. You will be responsible for designing and implementing cutting-edge user interfaces that cater to front office e-trading applications. Your expertise will ensure that our software is not only highly functional but also delivers an exceptional user experience. Key Responsibilities: Lead the development of front office...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Project Manager – Service virtualization (Payments & Cards)
Project Manager – Service virtualization (Payments & Cards) Location: London - Hybrid - 2 to 3 days per week onsite Start day: ASAP Contractor rate: TBC, likely in the region of £400-£425 per day inside IR35 Duration: 6 months, initially Role Overview Our client is seeking an experienced Project Manager with IBM Service Virtualisation (SV) expertise to lead the governance, coordination, and delivery of the Service Virtualisation programme. You will scale the current pilot to 5–6 virtualised services, ensuring structured delivery, strong risk control, stakeholder alignment, and high‑quality outcomes across Payments and Cards domains. Key Responsibilities * Deliver virtualised services across Payments and Cards platforms. * Lead governance, RAID management, and programme quality controls. * Coordinate cross‑functional teams (SV, QA, Security, DevOps, SMEs). * Oversee SIT testing, readiness, and operational handover. * Manage delivery phases from use‑case...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Fullstack Engineer
Full‑Stack Engineer (FX Trading Applications) Location: London (onsite 3 days per week) Day Rate: £700 (via Umbrella Company) Contract: Fixed Term Contract until 31 December 2026 About the Role Are you ready to dive into the dynamic world of FX Trading technology? Our client is seeking a talented Full‑Stack Engineer with strong Java expertise and a passion for solving complex technical challenges. You'll play a key role in building mission‑critical components that power high‑performance trading systems-working closely with cross‑functional teams in a fast‑paced, agile environment. Key Responsibilities Engineering & Development Design and develop backend and frontend features for FX Trading applications. Write well‑designed, testable, and efficient code across the full stack. Build automated test suites (unit, integration, contract, UI/API, performance). Define metrics and implement automated evaluation and drift detection for AI‑related components. Reduce technical...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 01, 2026  
IT Applications Manager
IT Applications Manager - Central London £650 - £700 p/d (outside IR35) - 3 month initial term Well-established and highly profitable construction engineering business is seeking an experienced IT Applications Manager to join them on a permanent basis. This is a critical leadership role within an organisation undergoing significant digital transformation, with ambitious growth and acquisition plans driving demand for scalable, standardised and efficient business applications. Reporting into the Head of IT, you will lead the delivery, governance and optimisation of business applications across the enterprise. This role blends strategic oversight, hands-on expertise with modern low-code/no-code platforms and direct leadership of a multidisciplinary applications team. The IT Applications Manager will oversee a suite of core enterprise systems, including but not limited to: Workday, UKG (Kronos), COINS, SharePoint, Snowflake, Autodesk Construction Cloud, Pro-Sapien, Primavera P6...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Programme Manager / Project Manager
Location: UK Wide (Hybrid - Travel to Core Sites) Sector: Transformation & PMO The Role We are looking for an experienced Programme Manager to deliver complex, cross-functional projects. You will oversee end-to-end delivery, ensuring projects remain on time, within budget, and aligned with high-quality standards. Key Responsibilities Deliver end-to-end programmes and lead smaller projects independently. Manage risks, dependencies, finances, and change controls proactively. Influence senior stakeholders and provide reporting for executive decision-making. Champion PMO best practices and Agile/LEAN methodologies. Mentor and support junior PM professionals to drive team maturity. Requirements Experience: Proven track record in end-to-end project/programme delivery. Skills: Strong risk management, financial tracking, and governance. Methodologies: Familiarity with Agile, LEAN, or Six Sigma. Communication: Ability to manage senior/executive-level stakeholders....
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Technical Support Specialist
Start: ASAP End: 30 December 2026 Location: Farringdon, London Part time - 3 days a week - Tuesday, Wednesday & Thursday - Onsite  We’re partnering with a global leader in professional information, analytics, and technology solutions to recruit an experienced Technical Support Specialist for a long-term contract. This organisation operates in more than 150 countries and is widely recognised for its innovative use of AI and advanced technologies to support professional services. You’ll be joining a close-knit European support team (split between the UK and France) that sits within a wider global infrastructure function of over 300 people. The culture is friendly, collaborative, and inclusive somewhere you’ll be supported, trusted, and encouraged to contribute your ideas. The Role This is a hands-on technical support position providing both in-person and remote support to users across the business. You’ll be responsible for troubleshooting laptops, operating systems,...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Fullstack Developer
Fullstack Developer – Palantir Foundry job in London – £750 - £1000 a day – London – Outside IR35 Hexwired Recruitment is recruiting for an expanding Solutions provider, now seeking Data Engineers and Fullstack Developers with solid experience working on Palantir Foundry’s data analytics dashboard. You will be working on the full product lifecycle for a range of customers within Finance, energy and more. The successful candidate must have good experience on both the API development and backend data management side of Palantir’s products. Initial 3 months with very likely extension. Outside IR35 and will require at least 3 days onsite. Key Skills: * Bachelors in CS, Maths, Physics or similar * 3+ commercial Palantir Foundry dashboard experience * Solid experience building applications using Palantir Foundry * Excellent Data Engineering experience using Palantir Foundry * Company is agnostic on programming languages, Python, Java, Typescript and/or React...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Automation Test Engineer
Test Engineer – SC Cleared – 6-month Contract – Hybrid Working – Inside IR35 My customer is seeking an experienced SC Cleared Test Automation Engineer to play a key role within the testing function. The role involves working closely with business and product SMEs to translate critical functional business processes into automated test scenarios. This Test Automation Engineer bring strong triangular testing, and automation experience to ensure that test evidence is clear, traceable, and aligned with the requirements for formal test phase sign-off. Key Skills required from the Test Engineer: Actively SC Cleared Ability to Configure, Extend and maintain the Triangle Automation framework, project structure, and execution patterns. Experience building automated regression and UAT test suites (Including Dynamic test generation, and cross environment comparisons). Hands-on experience integrating automated suites into CI/CD pipelines (Using Azure DevOps, and GitHub Actions). Ability to...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 01, 2026  
PostreSQL DBA
PostgreSQL DBA - Active SC, Pgvector, PostGIS Up to £500 per day (Outside IR35) London / Hybrid (1-2 days per week onsite) 6 Months My client is a high profile Consultancy who urgently require a Database Administrator (PostgreSQL DBA) with Active Security Clearance (Active SC) to work with a high profile end customer. Key Requirements: Proven experience as a Database Administrator (PostgreSQL DBA) Must hold Active Security Clearance (SC) Core development / maintenance and performance optimisation (sharding, partitions) Experience with clustering and extensions such as Pgvector PostGIS and AGE Data migration experience from existing database(s) to Postgres database(s) Ability to recreate existing data models and develop new data models in accordance with user requirements Nice to have: Immediate availability Awareness / familiarity with Defence Information Exchange Standards Working knowledge of UI integration including geotooling If you're interested in this role, click...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Apr 01, 2026  
Migration Engineer
Migration Engineer – Remote – Outside IR35 A client is seeking a Migration Engineer to complete a Google Workspace / G-Suite to M365 migration project. The successful Migration Engineer will require strong experience with Modern Workspace, Endpoint Management and Security Policy. The migration includes over 200 accounts including mailboxes, secured, unsecured and shared data being used be executive leadership and staff. Experience with Purview/DLP and Data Classification is highly desirable. Required Skills & Experience of the Migration Engineer: Proven experience with Microsoft 365 tenant-to-tenant migrations. Google Workspace / G-Suite migration experience. Strong knowledge of: Microsoft Intune MDM / Endpoint Management SharePoint Migrations Microsoft Purview / DLP policies Azure AD / Entra ID administration BitTitan and similar Experience migrating mailboxes, user accounts, and file storage at scale. Key Responsibilities of the Migration Engineer: Plan and execute...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Mar 31, 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
Mar 31, 2026  
Enterprise Architect
Summer-Browning Associates is currently supporting our central government client, who is seeking an Enterprise 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 Enterprise Architecture, along with the following skills and experience: Extensive experience in developing Enterprise Architectural strategies, leading design authorities, and implementing architectural governance. Proven track record in leading enterprise architecture for large-scale cloud hosting, specifically in Azure and GCP, within high-security government Tier 2 environments. In-depth knowledge of cloud architecture, including IAM, identity federation, cryptography, network segmentation, and high-assurance gateways. Proven ability to lead enterprise design across all domains, including Data, Digital, Security, and Technical areas. Proficiency in...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 31, 2026  
Integration Developer
Boomi Integration Developer - Contract Overview We are looking for an experienced Boomi Integration Developer to support a series of integration projects. This is a 3‑month contract, fully remote, and operating outside IR35. Key Responsibilities * Design, develop, and maintain integrations using the Boomi platform * Work closely with internal teams to understand integration requirements * Troubleshoot and optimise existing Boomi processes * Support project delivery across multiple systems and data sources * Ensure best practice, documentation, and smooth handover at the end of the engagement Requirements * Proven experience as a Boomi Integration Developer * Strong understanding of integration patterns and API development * Ability to work independently and deliver in a fast‑paced environment * Excellent communication and problem‑solving skills * Boomi certifications beneficial but not essential Contract Details * Length: 3 months * Location: Remote * IR35 Status: Outside IR35...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Mar 31, 2026  
Invoice Standards Programme Manager London £850-£950/day
Structured e-invoice / e-invoicing / international invoice standards Programme Manager | London (Hybrid) | £850 - £950/day (Inside IR35) Our client is looking for an experienced Finance Programme Manager with solid Tax, Accounting, Invoicing (specifically the new XML e-invoice standards) and also knowledge around SAP Hana for a long term contract role (Hybrid, London based). Initial contract period is 12 months. This role is inside IR35 - so you'd be working via an Umbrella company. Your background will be in Finance Programme Management roles and you'll have great knowledge around the new e-invoice XML standards. You'd be leading this programme on an initial 12 month contract - and you'll have great experience spinning up a new programme and keeping it moving through it's lifecycle. As well as the above the client is looking for someone with excellent communication skills that can engage with stakeholders all levels. Programme Manager E-invoice XML standards Finance...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 29, 2026  
Housing Systems PM
Housing Systems Project Manager (NEC Housing) London Borough | Contract | Competitive Day Rate A progressive London Borough is seeking an experienced Housing Systems Project Manager to lead the delivery and enhancement of its NEC Housing Management System. This contract role sits at the heart of the council's digital housing transformation, improving services and outcomes for residents. Role Overview You'll manage end‑to‑end delivery of housing system projects-focusing on NEC Housing upgrades, integrations, and process improvements. Working with internal teams, suppliers, and senior stakeholders, you'll ensure projects are delivered on time, within scope, and aligned with strategic objectives. Key Responsibilities Lead planning, delivery, and implementation of NEC Housing system projects Manage project plans, budgets, risks, and reporting Coordinate with suppliers, technical teams, and housing services Oversee testing, data migration, and quality assurance Ensure...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 29, 2026  
Financial Controls and Compliance Specialist
Financial Controls and Compliance Specialist – London – Hybrid Job description BDO Regulatory Solutions are currently recruiting for a Financial Controls and Compliance Specialist to join our client, based in London. We are offering an initial 9–12 month contract starting ASAP with an excellent day rate, employed via an Umbrella company. About the role: The Financial Controls and Compliance Specialist will be positioned to the client, supporting global and local compliance requirements for internal controls over financial reporting (ICFR). Key responsibilities include: Work with Businesses/Function Leads, the client’s global compliance function and control owners in implementing financial reporting control standards Deliver training to Businesses/Function stakeholders on financial reporting control standards Support deployment of controls as required by Group Financial Risk and Compliance teams, ensuring controls adhere to Group requirements Using your knowledge of...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 29, 2026  
AI Engineer
Job Title: AI Engineer / Data & AI Scientist (LLM, Generative AI, Python) We are recruiting for an AI Engineer / Data & AI Scientist to join a high-impact programme building next-generation conversational AI and generative AI platforms. This role focuses on developing production-grade LLM applications, agent-based AI systems and RAG pipelines used in large-scale customer-facing environments. This is an opportunity to work on advanced AI assistant and conversational AI technology, building scalable multi-agent architectures and generative search systems using modern AI frameworks. Key Responsibilities * Design and build LLM-powered applications using Python and Generative AI frameworks * Develop RAG (Retrieval Augmented Generation) pipelines and AI orchestration workflows * Build and deploy agent-based AI systems using tools such as LangGraph, CrewAI or similar frameworks * Engineer scalable AI infrastructure across Azure and GCP environments * Implement...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 28, 2026  
Security Architect
Role Title: Security Architect Duration: contract to run until 30/09/2026 Location: London or Southampton hybrid working 3 days per week onsite Rate: up to £496.80 p/d Umbrella inside IR35 Role purpose / summary Architecture & Design: Develop secure architectures and reference patterns across cloud, infrastructure, applications, and data platforms. Ensure alignment with business goals, risk appetite, and regulatory requirements. Solution Delivery: Provide architectural guidance during project lifecycle (HLD/LLD), review designs, and ensure solutions meet security requirements. Risk & Threat Management: Conduct threat modelling, assess vulnerabilities, and ensure appropriate mitigating controls are designed and implemented. Governance & Standards: Define and maintain security policies, standards, and guardrails. Ensure adherence to architectural principles and regulatory obligations (e.g., GDPR, FCA). Collaboration: Partner with engineering, cloud, network, IAM, and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 28, 2026  
Developer Experience (DevEx) Engineer
Developer Experience (DevEx) Engineer Location: London Contract Type: 12 months About the Role Guidant Global is supporting our client in hiring a Developer Experience (DevEx) Engineer to enhance the productivity, satisfaction and efficiency of engineering teams. This role focuses on improving tooling, workflows, documentation and internal platforms to ensure developers can build, test and deliver software quickly, reliably and with minimal friction. You'll be at the heart of engineering excellence - streamlining processes, advocating best practices, and championing a developer‑first mindset across technical teams. Key Responsibilities Design and build internal tools, libraries and services that improve developer workflows Optimise CI/CD pipelines for speed, reliability and developer efficiency Collaborate with engineering teams to identify pain points and automate repetitive tasks Maintain and improve developer documentation, onboarding guides and internal wikis Promote...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
Mar 28, 2026  
Security Architect
Role Title: Security Architect Duration: contract to run until 30/09/2026 Location: London or Southampton hybrid working 3 days per week onsite Rate: up to £503.24 p/d Umbrella inside IR35 Role purpose / summary Architecture & Design: Develop secure architectures and reference patterns across cloud, infrastructure, applications, and data platforms. Ensure alignment with business goals, risk appetite, and regulatory requirements. Solution Delivery: Provide architectural guidance during project lifecycle (HLD/LLD), review designs, and ensure solutions meet security requirements. Risk & Threat Management: Conduct threat modelling, assess vulnerabilities, and ensure appropriate mitigating controls are designed and implemented. Governance & Standards: Define and maintain security policies, standards, and guardrails. Ensure adherence to architectural principles and regulatory obligations (e.g., GDPR, FCA). Collaboration: Partner with engineering, cloud, network, IAM, and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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