16 lead technical developer jobs found in London

World Wide Technology (WWT) is a global technology integrator and supply chain solutions provider. Through our culture of innovation, we inspire, build, and deliver business results, from idea to outcome.   World Wide Technology (WWT) is looking for an experienced FullStack Developer with strong expertise in Java, Agile delivery, software architecture, and AI-assisted development.   The ideal candidate combines hands-on engineering, technical leadership, solution design, and modernization of legacy applications while driving automation and innovation across development teams.   This is a contract Role & Inside IR35   FullStack Developer   Contract Duration: 6 months contract   Location: London, United Kingdom (Hybrid with 2- 3 days a week)   Key Responsibilities Drive product strategy, technical roadmap, and solution design using modern technologies and best practices. Lead...

Freelance Senior Product Designer (Outside of IR35) Duration: 9 months Start Date: End of August or ASAP Day Rate: Please specify in your application Contract: (Outside of IR35) Join Our Team as a Freelance Senior Product Designer (Outside of IR35) at Beyond Sports! Are you passionate about complex product systems, pixel-perfect UI, and leading the design of next-generation digital experiences that capture global audiences? At Beyond Sports, we don’t just visualize sports, we reinvent how fans experience them. Together with partners like NFL, NHL, FIFA, and Disney, we push the boundaries of real-time sports data, 3D graphics, and AI-driven storytelling across web and native mobile platforms. If you're an experienced Senior Product Designer with an exceptional visual craft, deep UX strategy expertise, and a track record of driving complex design initiatives alongside fast-moving engineering squads, this 9-month contract is an exciting opportunity to...

World Wide Technology (WWT) is a global technology integrator and supply chain solutions provider. Through our culture of innovation, we inspire, build, and deliver business results, from idea to outcome.   World Wide Technology (WWT) is looking for an experienced FullStack Developer with strong expertise in Java, Agile delivery, software architecture, and AI-assisted development.   The ideal candidate combines hands-on engineering, technical leadership, solution design, and modernization of legacy applications while driving automation and innovation across development teams.   This is a contract Role & Inside IR35   FullStack Developer   Contract Duration: 6 months contract   Location: London, United Kingdom (Hybrid with 2- 3 days a week)   Key Responsibilities Drive product strategy, technical roadmap, and solution design using modern technologies and best practices. Lead...

Job Introduction Handelsbanken combines a long-established relationship banking model with secure, resilient, and customer-focused technology. Our technology teams enable the Bank’s decentralised way of working, delivering systems built for stability, trust, and long-term value. We are on a multi-year technology and digital transformation journey to enhance customer experience and improve how colleagues work together. By modernising platforms, simplifying processes, and better connecting data and systems, we help relationship teams focus on customers and less on complexity. Our decentralised culture extends to technology. Teams are trusted to take ownership, make informed decisions, and deliver sustainable, high-quality solutions. We value engineering excellence, pragmatic problem-solving, and strong collaboration across technology, business, and risk. We offer technologists the opportunity to build lasting careers, deepen their expertise, and contribute to meaningful...

We are looking for a Senior AI Engineer to lead the engineering and deployment of autonomous agentic workflows. In this role, you will bridge the gap between domain risk experts-who hold deep subject-matter knowledge but limited technical capability-and modern AI infrastructure. You will design, build, and deploy intelligent "AI Change Agents" that integrate directly into developer ecosystems (Git, Jira, Confluence) to perform automated risk assessments, evaluate policy compliance, triangulate text-heavy datasets, and stream live updates to central risk registers. Job Description Hands-on experience building multi-agent systems, complex RAG pipelines, tool-use mechanisms, and multi-step workflows using frameworks such as LangGraph, Pydantic AI, AutoGen, or similar. Production-grade Python skills with a strong emphasis on writing clean, modular, testable, and maintainable code. Deep experience integrating with enterprise collaboration and CI/CD ecosystems, specifically...

Network Rail is at the heart of revitalising Britain's railway. From Crossrail - Europe's largest civil engineering project - to investment in world-class stations and major programmes of electrification, we are involved in some of the most ambitious and diverse ventures that this country has ever seen. We at Network Rail are dedicated to becoming one of Britain 's best employers and believe this starts with placing the candidate at the heart of everything we do!   Job Purpose The purpose of the Automation Architecture Lead is to provide hands-on technical, architectural and solution engineering leadership for the GBRX industry automation function. The role is responsible for defining the automation architecture, leading the design of automation solutions, establishing technical standards, and ensuring secure, scalable and reusable automation products by design. Working closely with other technical leads and delivery pods, the postholder will ensure that solution...

Enterprise AI Lead Product Owner Inside IR35 4-5 days on site in London Initial 6 month engagement   emagine is a high-end professional services consultancy and solutions firm specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions.   We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our consultants and colleagues which stems from our core values: Confident, Dedicated, Responsible, Genuine.   We are seeking an exceptional Enterprise Wide AI Lead Product Owner to lead the evolution, adoption and governance...

We are Subsea7, a global leader in the delivery of offshore projects and services for the energy industry. We make offshore energy transition possible through the continuous evolution of lower-carbon oil and gas and by enabling the growth of renewables and emerging energy. At Subsea7, we are looking for people who think differently. We want people who can bring new ideas and who are willing to take on challenges that will enable us to make a positive impact on a global stage. In turn we will lift you up and encourage you to go further. Onshore or offshore, embark on a journey of opportunities, continuous learning and development. Start your journey with us today. Title: IT Engagement Project Lead Location: Aberdeen (Westhill), GB #job-location.job-location-inline { display: inline; } Job Closing Date: 19 Aug 2026 Overview Subsea7 is seeking an IT Engagement Project Lead Consultant on a 6-month contract based in Aberdeen or London. The IT Engagement...

The Foreign, Commonwealth & Development Office (FCDO) pursues our national interests and projects the UK as a force for good in the world. We promote the interests of British citizens, safeguard the UK 's security, defend our values, reduce poverty, and tackle global challenges with our international partners.   About the role: Consular Services Department is seeking an experienced Commercial IT Delivery Manager to support the mobilisation of new digital contracts, manage transition and exit deliverables, and ensure governance and reporting align with HMG commercial, procurement and business case expectations.   The role will help establish clear ways of working between suppliers, Commercial, Finance, IDD and Consular delivery teams, ensuring responsibilities, milestones, risks and decisions are visible from contract set-up through to live service.   The postholder will report to the Head of Strategy and Portfolio.   The main...

DevOps and Automation Engineer Contract: Outside IR35 Duration: 6 months   Why Tokio Marine HCC? Standing still is not an option in the current world of Insurance. TMHCC are one of the world’s leading Specialty Insurers. With deep expertise in our chosen lines of business, our unparalleled track record and a solid balance sheet, TMHCC evaluates and manages risk like no one else in the industry. Looking beyond profit, empowering our people and delivering on our commitments are at the core of our customer values, and so is a desire to grow and provide creative and innovative solutions to our clients.   This assignment will be to work with the DevOps and Automation Manager to create and deliver the DevOps and Automation roadmap with a heavy focus on “Everything Ephemeral” including Agentic AI and ephemeral environments.   Key responsibilities and deliverables: Liaise closely with IT Delivery Managers, including...

We have an exciting opportunity for experienced Java developers to join our team! You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, with the technical gravitas to mentor and inspire the development team; playing an integral part in helping them continuously improve by sharing your own knowledge, experience and insights. You will be confident in challenging business requirements to ensure you are continuously delivering the best possible outcome, harnessing innovation and driving the adoption of new technologies to deliver business value. Your vision and ambition will contribute to shaping our online technology roadmap, influencing our future technical direction and balancing passion with precision to deliver exceptional online service and solutions for our customers.   This is an initial 12 month contract that sits...

Job title: Contract - SAP Analytics Cloud (SAC) Planning Lead Contract Duration: 12 months Start Date: ASAP August 2026 Location: London - Hybrid Rate: Competitive (inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   About The Role We are looking for a SAP Analytics Cloud (SAC) Planning Lead to lead Performance, Budgeting and Forecasting. You will work with one of our public sector clients. Reporting to the Finance Delivery Lead, you will be accountable for solution ownership, guiding the team on SAP best practices, design...

The Department for Education is seeking an experienced and delivery-focused Data Delivery Manager to support the Longitudinal Education Outcomes (LEO) and Pupil Parent Matched Dataset (PPMD) Programme within the Enterprise Data for Access and Sharing (EDAS) portfolio. This is a high-profile opportunity to lead the delivery of complex, cross-government data initiatives that underpin policy development, funding decisions, and research across government and academia. Working within a multidisciplinary environment, you will play a pivotal role in establishing effective delivery structures, driving collaboration across technical and business teams, and ensuring the successful delivery of critical data transformation programmes. The role offers the opportunity to work with nationally significant education datasets and contribute to improving how data is accessed, governed, and used to inform key decisions across the UK public sector.   As a  Data Delivery Manager ,...

DevOps and Automation Engineer Contract: Outside IR35 Duration: 6 months   Why Tokio Marine HCC? Standing still is not an option in the current world of Insurance. TMHCC are one of the world’s leading Specialty Insurers. With deep expertise in our chosen lines of business, our unparalleled track record and a solid balance sheet, TMHCC evaluates and manages risk like no one else in the industry. Looking beyond profit, empowering our people and delivering on our commitments are at the core of our customer values, and so is a desire to grow and provide creative and innovative solutions to our clients.   This assignment will be to work with the DevOps and Automation Manager to create and deliver the DevOps and Automation roadmap with a heavy focus on “Everything Ephemeral” including Agentic AI and ephemeral environments.   Key responsibilities and deliverables: Liaise closely with IT Delivery Managers, including...

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn't just the Best Place to Play — it's also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we're part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Location: London / Hybrid Duration: 6-12 Months Day Rate: £340 - £360 per day Engagement Method : Umbrella/PAYE Role Overview: We're looking for a Senior Digital Designer to join our Creative Services team for an initial 6-12 month...

Senior Project Manager - Macro Network Segmentation Project Assignment type: 6 month contract (outside IR35)   We are seeking an experienced Senior Project Manager to lead the delivery of a strategic Macro Network Segmentation Project across a complex enterprise environment. The successful contractor will be responsible for planning, coordinating, and delivering the migration of business applications into designated network security zones, implementation of firewall policy changes, and management of dependencies across multiple concurrent transformation projects. This role requires strong stakeholder management, technical project delivery experience, and the ability to coordinate cross-functional teams spanning infrastructure, cybersecurity, application owners, architecture, operations, and third-party suppliers.   Key Responsibilities Project Delivery Lead end-to-end delivery of the Macro Network Segmentation Project, ensuring...