131 engineering jobs found in London, greater london

Join a growing tech business where you'll drive application security across cutting-edge cloud environments and shape the future of product security. Salary: Market related Application Security Engineering (Product) Location: London / Remote Rate: Competitive IR35: Outside We're looking for experienced contract Application Security Engineer to drive AppSec and Product Security across a modern cloud environment for a growing tech business in London! What you'll be doing: Owning vulnerability management, triaging and driving remediation Embedding security into the SDLC and improving security metrics Delivering threat modelling and providing security consultancy to engineering and product teams What we're looking for: Strong Application Security background, with experience in a penetration testing environment Excellent knowledge of the OWASP Top 10 Understanding of mobile application security Experience with AWS and Cloudflare Ready to make a real impact...

AI Data Engineer - Agentic AI In Prod - Eval's - Context Engineering - RAG - LLM's - AWS Bedrock AI Data Engineer - Agentic AI In Prod - Eval's - Context Engineering - RAG - LLM's - AWS Bedrock requirement for an urgent start. The AI Data Engineer - Agentic AI In Prod - Eval's - Context Engineering - RAG - LLM's - AWS Bedrock will be working for us, Blackstone&, at an enterprise client in London AI Data Engineer - Agentic AI In Prod - Eval's - Context Engineering - RAG - LLM's - AWS Bedrock Key Skills A data engineering background with a strong, current understanding of how AI systems consume data. You know the difference between building pipelines for analytics and building pipelines for agents. Hands-on experience with AWS, including the data services (S3, Glue, Lambda, RDS) and AI services (Bedrock, Knowledge Bases) and how they connect. The ability to take unstructured data and transform it into structured, agent-ready formats in production, not just in a...

App Sec/Prod Sec Engineer Location: London/Remote Rate: Competitve IR35: Outside We're looking for experienced contract Application Security Engineer to drive AppSec and Product Security across a modern cloud environment for a growing tech business in London ! What you'll be doing: Owning vulnerability management, triaging and driving remediation Embedding security into the SDLC and improving Security metrics Delivering threat modelling and providing security consultancy to engineering and product teams What we're looking for: Strong Application Security background, with experience in a penetration testing environment Excellent knowledge of the OWASP Top 10 Understanding of mobile application security Experience with AWS and Cloudflare

Join a dynamic payments business leading the charge in cloud transformation and help shape the future of financial technology. Salary: £400 per day Technical PMO – Cloud Migration (Payments) London (Hybrid) | £400/day | Outside IR35 | 6 months We're looking for a Technical PMO to support a major cloud migration programme for a payments business, tracking engineering readiness across application and platform teams as they move to a cloud-first operating model. What you'll do: Own RAID logs, dependency tracking, and readiness reporting across engineering, platform, security and QA teams Track engineering blockers, evidence and prerequisites through to migration/cutover milestones Liaise directly with engineering leads to chase and verify technical readiness (not just report on it) Escalate risks and readiness gaps to Programme Leadership with clear recommendations What you'll bring: Proven PMO/governance experience on a cloud...

Technical PMO - Cloud Migration (Payments) London (Hybrid) | £400/day | Outside IR35 | 6 months We're looking for a Technical PMO to support a major cloud migration programme for a payments business, tracking engineering readiness across application and platform teams as they move to a cloud-first operating model. What you'll do Own RAID logs, dependency tracking, and readiness reporting across engineering, platform, security and QA teams Track engineering blockers, evidence and prerequisites through to migration/cutover milestones Liaise directly with engineering leads to chase and verify technical readiness (not just report on it) Escalate risks and readiness gaps to Programme Leadership with clear recommendations What you'll bring Proven PMO/governance experience on a cloud migration or technology transformation programme Comfortable talking to engineers - working knowledge of Azure/AWS, networking, IAM, CI/CD, observability Payments or fintech background...

Data Engineering Tech Lead Location: London (1 day per month onsite) Duration: Initial 6-Month Contract Pay Rate: £650 - £680 (Outside IR35) The Opportunity We're supporting a growing loyalty and rewards organisation that is continuing to expand its data capability following significant business growth click apply for full job details

Data Engineering Manager Outside IR35 | £800-£900 pd | Fully Remote Leading Financial Services business is looking for a Data Engineering Manager to lead a team of 6-7 Data Engineers delivering data products across core finance, ledger and back-office systems within a complex, regulated environment. This role is ideal for a leader who combines strong modern data engineering expertise with a relentless focus on delivering measurable business value. You'll be responsible for: Leading, coaching and developing a team of 6-7 Data Engineers. Delivering business-critical data products supporting finance and ledger platforms. Partnering with Product Managers and business stakeholders to translate priorities into technical delivery. Driving engineering standards, delivery, data quality and governance. Ensuring the team focuses on business outcomes, not just technical outputs. Skills/Experience: Experience leading modern data engineering teams. Strong technical...

🚨 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.

Senior C# Engineer – .NET 8/9, AWS Lambda, SQS, SNS – OUTSIDE IR35 £700–£800/day • 100% Remote • 11-month rolling contract Takeaway: Lead the architecture and build of a greenfield SaaS platform as a deeply senior, hands-on C# engineer, with heavy emphasis on deep .NET engineering , high-performance distributed systems , and real-world AWS serverless delivery . You’ll also have the opportunity to develop hands-on skills with Claude Code , one of the most advanced AI-assisted development tools in the industry. Role Overview: You’ll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engineering. Expect deep backend engineering, distributed system design, and high-quality serverless delivery, plus the chance to adopt modern AI-assisted development practices as part of your workflow. What You’ll Bring: Senior/Staff-level backend mastery in C# and .NET 8/9 , with the ability to architect and lead...

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...

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: Network Engineer - SONiC/Advanced Networking Day rate: £400-450 per day - Outside IR35/Limited Company Start date: Immediate Duration: TBC - multiple projects Location: Fully remote Overview We are looking for an experienced Network Engineer to provide specialist network engineering. The ideal candidate will have hands-on experience with SONiC (Software for Open Networking in the Cloud), advanced networking technologies and BGP routing. Experience with Celestica SONiC is highly desirable; however, candidates with experience of other enterprise or community SONiC distributions will also be considered. Key Responsibilities Configure and support SONiC based networking environments Troubleshoot and optimise Layer 2 and Layer 3 network infrastructure Configure and support BGP routing Support Software VPN implementations Diagnose and resolve network issues in a fast-paced project environment Essential Skills Hands-on experience with SONiC (Software for Open...

Senior Data Engineer (Contract) Outside IR35 Location: London (Hybrid 2 days per week on-site, mandatory ) Contract: Initial 6 months with strong likelihood of extension IR35: Outside IR35 We're working with an established, data-driven business looking for a Senior Data Engineer to join a small, high-impact data team click apply for full job details

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....

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...