26 lead technical developer jobs found

Waracle are looking for a Senior Mobile Security Developer (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a UK-based Inside IR35 Contract role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London or Edinburgh office or on client site. The Role As a Senior Mobile Security Developer, you will define squad-level technical architecture...

Job Title: Software Developer Team Lead Location: London (3 days onsite) Duration: 12 Month Contract Start Date: ASAP IR35: Inside Clearance: Active DV Security Clearance required   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.   Role We are seeking an experienced Senior Developer to provide technical leadership for the delivery of an AI-enabled Defence tasking and workflow platform. The role will help shape a secure application that combines Python/FastAPI services, React and TypeScript user interfaces, Camunda workflow...

Waracle are looking for a Senior Mobile Security Developer (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a UK-based Inside IR35 Contract role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London or Edinburgh office or on client site. The Role As a Senior Mobile Security Developer, you will define squad-level technical architecture...

Salesforce Developer (12m Day Rate Contractor) 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...

Salesforce Developer (12m Day Rate Contractor) 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...

Job Title: Software Developer Team Lead Location: London (3 days onsite) Duration: 12 Month Contract Start Date: ASAP IR35: Inside Clearance: Active DV Security Clearance required   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.   Role We are seeking an experienced Senior Developer to provide technical leadership for the delivery of an AI-enabled Defence tasking and workflow platform. The role will help shape a secure application that combines Python/FastAPI services, React and TypeScript user interfaces, Camunda workflow...

Senior Mobile Security Developer - Contract (Inside IR35) Waracle are looking for a Senior Mobile Security Developer (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a UK-based Inside IR35 Contract role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London or Edinburgh office or on client site. The Role As a Senior Mobile Security...

The CPS prosecutes criminal cases that have been investigated by the police and other investigative organisations in England and Wales. The CPS is independent, and they make their decisions independently of the police and government.   The AI Programme Lead is accountable for setting up, establishing, leading and delivering a programme of work for AI-enabled transformation initiatives, including the governance, prioritisation, reporting, risk management and dependency management needed to deliver measurable business outcomes.   The role will provide programme leadership across multiple workstreams, ensuring that AI opportunities are identified, prioritised, governed and delivered safely and effectively. The postholder will balance innovation with assurance, ensuring compliance with security, legal, ethical, data and governance requirements while supporting the organisation to realise tangible value from AI investment.   The AI Programme Lead will...

Network Solution Architect/Technical Lead Location: London (2-3 days/Hybrid) Job Overview We are seeking an experienced Network Solution Architect/Technical Lead to lead the end-to-end design, delivery and implementation of enterprise network solutions across LAN, WAN, WLAN, Data Centre, SD-WAN, Security and Cloud environments. The successful candidate will act as the technical authority, ensuring network solutions are scalable, secure, resilient and aligned with business requirements and technical standards. Key Responsibilities Lead network architecture, solution design and technical governance across enterprise infrastructure projects. Develop, review and approve High-Level Designs (HLDs), Low-Level Designs (LLDs) and technical documentation. Provide technical expertise across LAN, WAN, WLAN, Data Centre, SD-WAN, Security and Cloud connectivity. Conduct requirements gathering, project scoping, technical assessments and risk analysis. Review...

AI Engineer - 12 Month Day Rate Contract 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...

  Job Code: 14922 Country: GB City: London Skill Category: IT Technology Description: Job Title: Identity Delivery Manager Role type: Contractor (12 months) Department: Authentication/MFA & Directory Services Location: London (Hybrid)   Company overview   Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through our four business divisions: Wealth Management, Investment Management, Wholesale (Global Markets and Investment Banking) and Banking.   Driven by the insights of some 28,000 people worldwide, we put our clients at the center of everything we do, delivering unparalleled access to, from and within Asia. For further information about Nomura, visit www.nomura.com...

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...

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.   The Role Successful candidate will develop modular Python services across question planning, AI workflow orchestration, information retrieval, evidence processing, LLM integration, response generation and validation. You will work collaboratively with engineering, data, platform and evaluation specialists to translate AI concepts and experiments into reliable, scalable and maintainable production services. This is a hands-on software engineering role requiring strong production Python experience and practical delivery of Generative AI...

World Wide Technology (WWT), a 36-year-old global technology integrator and IT solutions provider. Through our culture of innovation, we inspire, build, and deliver business results from idea to outcome. World Wide Technology Holding has an opportunity for a Network Engineer who can own design, automation and lifecycle management of global core network infrastructure. The ideal candidate brings deep Cisco IOS-XR and NSO automation expertise, with a track record leading large-scale network migrations, software upgrades, and hardware refresh programmes across a complex global estate. This is a contract Role & Inside IR35 Network Engineer Contract Duration: 6 months Location: Hybrid, 2 days onsite per week  Key Responsibilities Develop and maintain Cisco NSO automation, service models, and workflows. Lead migration and transformation across Cisco 8000, ASR 9000, and NCS platforms. Design and support large-scale WAN, MAN, and Optical...

Contract - Software & DevOps Engineer Job Type Contract Date published 12-Oct-2026 Req # 25464 Job description Job Title: Software & DevOps Engineer Location: London Hybrid Duration: 12 months Contract Start Date: November, ASAP Day 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.   The Role This role requires a senior software engineer specializing in Java and JavaScript development to design, build, and secure...

Contract - Program & Product Management Job Type Contract Date published 12-Oct-2026 Req # 25465 Job description Job Title: Program & Product Management Location: London/Belfast Duration: 12 months Contract Start Date: November 2026 or asap Day 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.   Skills: BFT CyberTech: BRD process management. Strong programme mgmt skills for detecting engineering lifecycle...

AI Engineer - 12 Month Day Rate Contract 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,...

  Job Code: 14922 Country: GB City: London Skill Category: IT Technology Description: Job Title: Identity Delivery Manager Role type: Contractor (12 months) Department: Authentication/MFA & Directory Services Location: London (Hybrid)   Company overview   Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through our four business divisions: Wealth Management, Investment Management, Wholesale (Global Markets and Investment Banking) and Banking.   Driven by the insights of some 28,000 people worldwide, we put our clients at the center of everything we do, delivering unparalleled access to, from and within Asia. For further information about Nomura, visit www.nomura.com...

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...

Job Title: Python AI Engineer Location: London Duration: 6 months Contract Start Date: 12 October Day 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.   The Role Successful candidate will develop modular Python services across question planning, AI workflow orchestration, information retrieval, evidence processing, LLM integration, response generation and validation. You will work collaboratively with engineering, data, platform and evaluation specialists to translate AI concepts and experiments into...