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52 lead technical developer jobs found

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6 Months or more lead technical developer
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Contract Spy
Oct 16, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, London/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (London, UK)
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...
Contract Spy
Oct 16, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, Edinburgh/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (Edinburgh, UK)
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...
Contract Spy
Oct 12, 2026
6 Months or more
Senior .NET Engineer at Reapit Ltd, Fully Remote, to 5/27, to £750 per day (Outside IR35)
£650 - £750 per day
Contract Spy Remote
Fully remote, outside IR35 contract role until 31/05/2027 - up to £750 per day Reapit - Who are we? Reapit is the original end-to-end business technology provider for estate agencies of all sizes. We've been helping sales and lettings agents build relationships and grow their businesses for more than 25 years. Our technology empowers property professionals across Europe, the Middle East, Australia, and New Zealand to work with buyers, sellers, tenants, and landlords to deliver a dream home experience. Worldwide, over 100,000 agents across more than 15,000 branches use Reapit to run their businesses, manage properties, collect rent, engage clients, and provide outstanding customer service every time. What you'll be doing Reporting to the Director of Engineering, you'll operate as a highly senior, technically hands-on Back End engineer, Embedded into a squad and owning delivery of substantive, cloud-native services end-to-end. Ad-hoc client...
Contract Spy
Oct 12, 2026
6 Months or more
Software Development Team Lead - DV Cleared at Deloitte, London, 12 Months, £Contract Rate
Contract Spy London, UK
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...
Contract Spy
Oct 09, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, London/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (London, UK)
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...
Contract Spy
Oct 09, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, Edinburgh/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (Edinburgh, UK)
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...
Contract Spy
Oct 08, 2026
6 Months or more
Salesforce Developer at Handelsbanken Plc, London, 12 Months, £Competitive Day Rate
Contract Spy London, UK
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...
Contract Spy
Oct 06, 2026
6 Months or more
Salesforce Developer at Handelsbanken Plc, London, 12 Months, £Competitive Day Rate
Contract Spy London, UK
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...
Contract Spy
Oct 05, 2026
6 Months or more
Digital Product Manager Senior (Cloud Infrastructure) at Ministry of Defence, Corsham/Remote, £Contract Rate
Contract Spy Hybrid (Corsham, UK)
The Ministry of Defence (MOD) is a central government department with a mission to protect our country and provide the ultimate guarantee of its security and independence, as well as helping to protect its values and interests abroad.   The MOD is one of the biggest public procurement organisations in Europe and the single largest customer for UK industry. It currently manages approximately £20 billion of spend on capital investments in equipment and infrastructure every year. Over the next decade the MOD is committed to spending over £190 billion on equipment and support. The MOD's customers include both the armed forces and national security agencies, and it has a diverse range of requirements, including military fighting vehicles, education services, nuclear submarines and facilities management.   The MOD's aim is to provide its armed forces with the best capabilities to enable them to protect the UK's security and advance national interests,...
Contract Spy
Oct 05, 2026
6 Months or more
Power BI Developer at Quest Global, Bristol, 12 Months, £Contract Rate (Outside IR35)
Contract Spy Bristol, UK
Job Requirements Job Summary: Quest Global are responsible for the design, specification and control of gas turbine projects in the UK and worldwide. This vacancy is for a Power BI Developer to aid with OEM customer business system improvement through the creation and development of Power BI Dashboards. The vacancy is a 12-month Outside IR35 Full-Time contract located in Bristol, UK. Hybrid working (max. 1 or 2 day/week at home) and flexible working patterns are available. Enhanced BPSS background checks will be carried out for the successful candidate, who must be UK sole nationality to apply for this role, due to MOD restrictions. Non-UK nationalities are not eligible to apply. Roles and Responsibilities Develop, design, and maintain Power BI reports and dashboards. Collaborate with business stakeholders to understand their data needs and translate them into technical requirements. Create data models and establish connections to various...
Contract Spy
Oct 05, 2026
6 Months or more
Software Development Team Lead - DV Cleared at Deloitte, London, 12 Months, £Contract Rate
Contract Spy London, UK
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...
Contract Spy
Oct 02, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, London/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (London, UK)
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...
Contract Spy
Oct 02, 2026
6 Months or more
Senior Mobile Security Developer at Waracle, Edinburgh/Remote, 6 Months initial, £Contract Rate
Contract Spy Hybrid (Edinburgh, UK)
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...
Contract Spy
Oct 02, 2026
6 Months or more
Senior Power Platform Developer at Ministry of Defence, Bristol, 6 Months, £Contract Rate
Contract Spy Bristol, UK
The Ministry of Defence (MOD) is a central government department with a mission to protect our country and provide the ultimate guarantee of its security and independence, as well as helping to protect its values and interests abroad.   SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active SC clearance.    The MOD is one of the biggest public procurement organisations in Europe and the single largest customer for UK industry. It currently manages approximately £20 billion of spend on capital investments in equipment and infrastructure every year. Over the next decade the MOD is committed to spending over £190 billion on equipment and...
Contract Spy
Sep 30, 2026
6 Months or more
Data Delivery Lead at RWS, Maidenhead, 6 Months, £Contract Rate
Contract Spy Maidenhead, UK
Job Purpose This role is a  Data Delivery Lead  position tackling a complex upgrade challenge. Over time, heavy customizations have made it difficult for customers to adopt new product versions. The lead will coordinate a strategic plan with engineering to streamline the upgrade path, ensuring customers can access the latest features, reducing churn.   Duration: 6 months (with possible extension)    About Product & Technology   Product & Technology plays a pivotal role in aligning the organization with its strategic objectives and enhancing shareholder value. Product & Technology is responsible for establishing unified standards and governance practices throughout the company. Additionally, we oversee the development and maintenance of core applications essential for the seamless operation of various functions across the organization. We are committed to driving and executing future roadmaps that are in...
Contract Spy
Oct 16, 2026
6 Months or more
AI Programme Lead at Crown Prosecution Service, Remote/London, 6 Months, £Contract Rate
Contract Spy Remote (London, UK)
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...
Contract Spy
Oct 16, 2026
6 Months or more
Network Solution Architect/Technical Lead at NetStone Global Ltd, London/Remote, 6 Months, £Contract Rate
Contract Spy Hybrid (London, UK)
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...
Contract Spy
Oct 15, 2026
6 Months or more
AI Engineer at Handelsbanken Plc, London, 12 Months, £Day Rate
Contract Spy London, UK
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...
Contract Spy
Oct 15, 2026
6 Months or more
Identity Delivery Manager at Nomura, London, 12 Months, £Contractor Rate
Contract Spy London, UK
  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...
Contract Spy
Oct 15, 2026
6 Months or more
Senior Data Engineer at Intellectual Property Office, Remote/Newport, 12 Months, £Contract Rate
Contract Spy Remote (Newport, UK)
Please note: SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. (Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance.)    The Intellectual Property Office (IPO) is the official UK government body responsible for intellectual property (IP) rights including patents, designs, trademarks and copyright. Our ambition is to be the best IP office, and we intend to achieve this by:   Delivering excellent IP services Creating a world leading IP environment Making the IPO a brilliant place to work   We operate and maintain a clear and accessible intellectual property system in the UK, which encourages innovation and helps the economy and society to benefit from...
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