246 information technology jobs found in Hounslow

Senior / Lead Software Engineer (Java) | Outside IR35 | Hybrid (2 Days Onsite in central London) A large retailer urgently seeks an experienced Senior Software Engineer with extensive Java expertise to take a lead role in the design,development and support of scalable, cloud-native backend applications. Working within an Agile, DevOps environment, you'll help build high-performance microservices, APIs and event-driven solutions powering a next-generation fulfilment platform used at significant scale. This is an exciting greenfield programme, working alongside engineers, operations and product teams to deliver software that supports critical business operations. Essential Experience Extensive commercial experience developing enterprise applications with Java and Spring Boot Proven track record designing and delivering high-throughput, distributed microservices at scale Strong experience building event-driven architectures using Kafka Expertise with...

Senior/Lead Software Engineer (Java) | Outside IR35 | Hybrid (2 Days Onsite in central London) A large retailer urgently seeks an experienced Senior Software Engineer with extensive Java expertise to take a lead role in the design,development and support of scalable, cloud-native Back End applications. Working within an Agile, DevOps environment, you'll help build high-performance microservices, APIs and event-driven solutions powering a next-generation fulfilment platform used at significant scale. This is an exciting greenfield programme, working alongside engineers, operations and product teams to deliver software that supports critical business operations. Essential Experience Extensive commercial experience developing enterprise applications with Java and Spring Boot Proven track record designing and delivering high-throughput, distributed microservices at scale Strong experience building event-driven architectures using Kafka Expertise with PostgreSQL and...

Security Architect - Consultant Advisory 12-Month Contract | Outside IR35 | Hybrid (2 days per week on-site) Location: West London / Greater London We are supporting a major UK transport infrastructure organisation undergoing a significant programme of cyber security improvement and technology transformation. We are seeking an experienced Security Architect Consultant to provide advisory support across a complex digital estate, reviewing security architectures, assessing risks, and supporting the delivery of security improvements across critical technology platforms. This role will involve working with technical teams, architects, and senior stakeholders to review existing security controls, improve security design practices, and support the implementation of secure technology solutions across a highly regulated environment. Key Responsibilities Review and refresh existing Cyber Security Impact Assessments (CSIAs) across a portfolio of live digital products and services....

Security Architect - Consultant Advisory 12-Month Contract | Outside IR35 | Hybrid (2 days per week on-site) Location: West London/Greater London We are supporting a major UK transport infrastructure organisation undergoing a significant programme of cyber security improvement and technology transformation. We are seeking an experienced Security Architect Consultant to provide advisory support across a complex digital estate, reviewing security architectures, assessing risks, and supporting the delivery of security improvements across critical technology platforms. This role will involve working with technical teams, architects, and senior stakeholders to review existing security controls, improve security design practices, and support the implementation of secure technology solutions across a highly regulated environment. Key Responsibilities Review and refresh existing Cyber Security Impact Assessments (CSIAs) across a portfolio of live digital products and services....

Senior Full-Stack Developer - VR Contract, Outside IR35 London A technology company working in immersive streaming is looking for a senior full-stack contractor to build a new streaming application for Meta Quest, extending an existing headset application using a PWA and WebXR approach. The contract would be for an initial 6 months, with possible scope to extend. They are ideally looking for someone available to start ASAP. Requirements: Strong commercial TypeScript across the full stack React and Next.js on the frontend Node.js and REST APIs on the backend PostgreSQL, Docker and AWS Experience with WebXR, Meta Quest or PWAs is preferred, as is any background in video streaming or latency-sensitive applications.

🚨 Active DV Cleared Full Stack Engineers 🚨 I'm working with a leading UK defence client on a major AI programme and am looking to speak with experienced DV Cleared Full Stack Engineers for a long-term contract opportunity. The Role 12-month contract Outside IR35 £500–£600 per day London (4 days onsite) You'll be joining a multidisciplinary engineering team delivering secure, mission-critical software on one of the UK's most exciting defence programmes. We're keen to hear from engineers with experience in areas such as: Python Java React MongoDB AI / Machine Learning Kubernetes VMware AWS or Azure Essential: Active UK DV Clearance Happy to work onsite in London four days per week If you're looking for your next contract within the defence sector, I'd be happy to tell you more.

IT Business Analyst London Up to £650 per day (Outside IR35) Initial 3 month term A leading construction engineering organisation is looking for an experienced Business Analyst to support a range of high-profile business and technology transformation initiatives. This is an exciting opportunity to work across digital transformation, enterprise applications, cyber security, AI and operational improvement programmes during a significant period of business change and growth. Working closely with senior stakeholders, project managers, technical teams and third-party partners, you will be responsible for understanding business needs, documenting requirements and ensuring technology solutions deliver measurable business value. Key Responsibilities: Elicit, analyse and document business, functional and non-functional requirements. Facilitate workshops and engage with stakeholders across the business to understand current and future state processes. Produce high-quality...

SAP Cutover Manager - SAP S/4HANA Contract: Initial 6 months (Project running until December 2027) Rate: £600-£650 per day IR35: Outside IR35 Location: London (Hybrid 3 days in office 2 days from home) We're looking for an experienced SAP Cutover Manager to lead end-to-end cutover planning, governance and go-live activities on a large-scale SAP S/4HANA transformation programme . This is a key role within a complex ERP transformation, requiring someone with proven experience managing cutover activities across business and technical teams while ensuring minimal disruption to operations. Essential Experience 10+ years' SAP project experience Proven SAP Cutover Management experience on large transformation programmes At least 2 full life cycle SAP S/4HANA implementations Experience within SAP Retail and SAP Finance environments Strong understanding of SAP deployment, go-live and Hypercare processes Excellent stakeholder, risk and dependency...

Boomi Integration Developer Job Title: Boomi Integration Architect Location: London or Birmingham (hybrid) Salary/Rate: £400 a day outside IR35 Start Date: 24th August 2026 Job Type: Initial 12-month contract Company Introduction We have an exciting opportunity now available with one of our sector-leading consultancy clients! They are currently looking for a skilled Boomi Integration Architect to lead the design, development, and governance of enterprise integration solutions. Job Responsibilities/Objectives You will be responsible for the creation, design, development, and implementation of their in-house RPA systems. You will also have to investigate, analyse, and set up automated processes to maximise efficiency for a business model. This is done with the help of RPA technologies and tools.") Design and implement enterprise-wide integration solutions using Boomi AtomSphere. Define integration architecture standards, reusable frameworks, and...

Lead Delivery Manager Location: Hybrid - Predominantly Remote (approximately monthly travel to Whitechapel) Contract: 17 August 2026 - 18 December 2026 Day Rate: £425-£450 per day IR35 Status: Outside IR35 Security Clearance: BPSS Required Role Overview We are seeking an experienced Lead Delivery Manager to join a high-profile government digital transformation programme focused on the continued evolution of a major citizen-facing mobile application. Working within a multidisciplinary Agile team, you will be responsible for leading delivery across a complex product area, ensuring teams are empowered to deliver high-quality digital services through effective planning, collaboration and continuous improvement. This is a hands-on leadership role requiring someone who enjoys working closely with engineering teams, removing delivery obstacles, managing risks and driving outcomes rather than operating purely at a strategic level. Key Responsibilities Lead the delivery...

One of our media clients is looking for a Senior NetSuite Developer to support a wider NetSuite ERP implementation. Role: Senior NetSuite Developer (Procure-to-Pay) Location: Hybrid with 2-3 days a week in Central London Contract: Initial 3 months (Outside IR35) Day Rate: £540-£640pd Outside IR35 Start: ASAP/urgent requirement Company We are supporting a global organisation undergoing a significant finance transformation programme, centred on enhancing and scaling its NetSuite ERP environment. Operating across multiple international markets, the business is investing heavily in automation, systems integration, and process improvement to support continued growth and operational efficiency. The organisation has an established internal NetSuite leadership and architecture capability and is now looking to strengthen its development function with an experienced technical specialist who can translate solution designs into scalable, production-ready outcomes....

Job title: Veeam Backup & Recovery Consultant Day rate: £350 per day - Outside IR35/Limited Company Start date: ASAP Duration: 1-2 months Location: Fully remote Role We are seeking an experienced Veeam Backup & Recovery Consultant to deliver the Veeam component of a large-scale greenfield datacentre deployment. The wider project includes Azure Local infrastructure, Dell storage platforms, and disaster recovery capabilities across two active-active datacentres. The successful Veeam Backup & Recovery Consultant will be responsible for the design, deployment, testing, and handover of the Veeam backup and replication solution. Project Environment Azure Local with Dell PowerStore (FC SAN) Dell PowerScale with Superna Veeam Backup & Replication v13.1 Veeam Data Cloud Vault Dell R760XD Linux Hardened Repositories (2 per site, 600TB capacity) Remote delivery (physical installation completed by onsite team) Responsibilities Lead Veeam design workshops...

Senior Software Engineer - Pricing & Availability (Node/React/.Net) We're supporting a high-traffic global travel and E-commerce platform in its search for a Senior Software Engineer to strengthen its pricing and availability systems. This is a hands-on contract role focused on improving the performance, reliability and scalability of a complex transactional platform processing millions of customer searches across multiple international markets. What you'll be working on: Building and improving pricing, quote-caching and availability services Designing resilient APIs and integration patterns Tackling latency, performance and infrastructure cost challenges Managing the trade-off between pricing freshness and cache efficiency Improving observability through monitoring, tracing and meaningful metrics Working alongside teams responsible for third-party integrations and booking systems Using AI coding tools as part of your day-to-day engineering workflow What...

Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. This is a hybrid role based in Central London, requiring three days per week in the office. The successful candidate will play a key role in delivering a business-critical application, working with modern technologies including Azure, React, Node.js and SQL while collaborating closely with both technical teams and business stakeholders. Key Responsibilities: Lead the development of an established Corporate Governance platform from prototype through to production. Design, develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive Front End applications using React and TypeScript. Build and maintain Back End services using Node.js. Deploy and support applications...

React Native Engineer/React Native Developer/Senior React Native Developer/Senior Mobile Developer - React Native We've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app. So we are looking for experienced React Native Developer to join this major digital transformation programme. You'll play a key role in enhancing and modernising mobile applications across iOS and Android , delivering new features, improving performance, and helping create a seamless customer experience. Key Responsibilities Develop and enhance mobile applications using React Native . Deliver new functionality and improve existing user journeys across iOS and Android platforms. Work closely with Product, UX/UI, Engineering, and QA teams to deliver high-quality solutions. Optimise application performance,...

DV Cleared Full Stack Engineer London | 12-Month Contract | Outside IR35 | 4 Days Onsite | Upto £600 PD A leading defence programme is looking for experienced Full Stack Engineers with active DV Clearance to support the development of advanced AI capabilities in a secure, mission-critical environment. You'll be joining an established engineering team, working across the full software lifecycle to build, enhance and integrate secure applications using modern technologies. You'll ideally have experience with: Python or Java React MongoDB AI/Machine Learning Kubernetes VMware AWS or Azure To be considered, you'll need: Active UK DV Clearance Availability to work onsite in London four days per week This is a fantastic opportunity to join a long-term programme at the forefront of defence technology, working on projects that have real-world impact.

React Native Engineer / React Native Developer / Senior React Native Developer / Senior Mobile Developer - React Native We 've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app. So we are looking for experienced React Native Developer to join this major digital transformation programme. You 'll play a key role in enhancing and modernising mobile applications across iOS and Android , delivering new features, improving performance, and helping create a seamless customer experience. Key Responsibilities Develop and enhance mobile applications using React Native . Deliver new functionality and improve existing user journeys across iOS and Android platforms. Work closely with Product, UX/UI, Engineering, and QA teams to deliver high-quality solutions....

SAP EWM Consultant - Contract Location: UK (home based with travel as required) Duration: 6 Months (initial) Day Rate: Competitive (Outside IR35) We 're supporting a client who is looking to engage an experienced SAP EWM Consultant on an initial 6-month contract. This is a primarily remote opportunity, offering the chance to join a high-profile SAP programme and work alongside experienced delivery teams on warehouse management solutions. Responsibilities Gather and analyse business requirements relating to warehouse operations. Design, configure and support SAP Extended Warehouse Management (EWM) solutions. Work closely with business stakeholders, technical teams and third-party partners. Support solution design workshops and system testing activities. Assist with issue resolution, user acceptance testing and deployment activities. Provide best practice guidance throughout the project lifecycle. Experience Required Proven...

Job title: Veeam Backup & Recovery Consultant Day rate: £350 per day - Outside IR35 / Limited Company Start date: ASAP Duration: 1-2 months Location: Fully remote Role We are seeking an experienced Veeam Backup & Recovery Consultant to deliver the Veeam component of a large-scale greenfield datacentre deployment. The wider project includes Azure Local infrastructure, Dell storage platforms, and disaster recovery capabilities across two active-active datacentres. The successful Veeam Backup & Recovery Consultant will be responsible for the design, deployment, testing, and handover of the Veeam backup and replication solution. Project Environment Azure Local with Dell PowerStore (FC SAN) Dell PowerScale with Superna Veeam Backup & Replication v13.1 Veeam Data Cloud Vault Dell R760XD Linux Hardened Repositories (2 per site, 600TB capacity) Remote delivery (physical installation completed by onsite...

Senior Software Engineer - Pricing & Availability (Node/React/.Net) We're supporting a high-traffic global travel and e-commerce platform in its search for a Senior Software Engineer to strengthen its pricing and availability systems. This is a hands-on contract role focused on improving the performance, reliability and scalability of a complex transactional platform processing millions of customer searches across multiple international markets. What you'll be working on: • Building and improving pricing, quote-caching and availability services • Designing resilient APIs and integration patterns • Tackling latency, performance and infrastructure cost challenges • Managing the trade-off between pricing freshness and cache efficiency • Improving observability through monitoring, tracing and meaningful metrics • Working alongside teams responsible for third-party integrations and booking systems • Using AI coding tools as...