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26 lead software engineer jobs found in London

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Contract Spy
Mar 31, 2026
Duration not stated
Lead Software Engineer (Salesforce/Java) at CreateFuture, London/Remote, £Contract Rate
Contract Spy Hybrid (London, UK)
Working at CreateFuture CreateFuture  is an  AI-native consulting partner  where people do work that matters and are supported to do it well. We work alongside organisations such as PayPal, adidas, NatWest, FanDuel and Money Saving Expert, building digital products and services that make a difference  while always putting people first. We’re a team of creators. We write code, shape delivery, build go-to-market strategies, develop AI solutions and create the practices that support our people. We work side by side with our clients, challenging what’s not  Lead Software Engineer (Salesforce / Java) – Contract Role Overview Lead engineering work focused on  Salesforce platform refactoring and backend process improvements Improve  integration architecture and system reliability Drive  modern engineering practices , including CI/CD and automated testing Support...
Contract Spy
Mar 31, 2026
Duration not stated
Senior Software/Data Engineer at Softwire, Remote/London, £500-£585 per day (Outside IR35)
£500 - £585 per day
Contract Spy Remote (London, UK)
Senior Software Developer / Data Engineer - (Contract Outside IR35)   In brief   We’re looking for well-rounded software developers with experience in data engineering, with a proven ability to tackle complex data challenges, make an excellent impression on clients, and have a high impact on the output of your entire team. We provide a supportive environment with a strong focus on individual career progression, where you will have both the mentorship and project opportunities you need to develop your technical skills. You’ll work in a team alongside other talented developers and data engineers, supported by a Technical Lead. Projects span a range of sizes and multiple sectors and technologies.   The role   Experience and qualifications   You have 4+ years’ experience and a breadth & depth of technical knowledge & expertise, particularly in data engineering, and can solve technical...
Contract Spy
Mar 31, 2026
Duration not stated
Technical Team Lead at Xcelirate, London, £Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a principal-level engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Mar 31, 2026
Duration not stated
Senior Engineer - Audio & Video Processing (Legacy/Cloud) at CACI Network Services, London/South East, £Contract Rate
Contract Spy London/South East, UK
About CACI From our headquarters in London, we're busy empowering organisations to make bold, strategic moves with the power of data and technology. Founded in 1975, our operations take place from multiple offices across the UK, Europe and India with over 1600 Full time employees and an annual turnover of £179m. Our expertise spans industries, from retail and education to public sector and transport - delivering intelligent solutions that drive progress and create measurable impact. Whether it's business intelligence, customer marketing, cloud infrastructure, cybersecurity, critical national infrastructure or data management, our approach is never one-size-fits-all. We don't just deliver solutions; we build for the tomorrow's world, all while fostering a culture that allows employees to be their authentic selves and succeed in their careers. About Network Services CACI Network Services is a rapidly expanding specialist IT and Networks consultancy offering a...
Contract Spy
Mar 31, 2026
Duration not stated
AI Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job description   Job Title: AI Engineer (contract) Location: London Hybrid. Travel to the London office 2 days a week Duration: 6 months Contract Start Date: March 2026   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 We are looking for a AI Engineer to join our Data and AI Team supporting internal service delivery transformation projects across Tax and Legal. You will be a Python and Azure expert in designing and building cutting-edge generative AI solutions for complex challenges. You will...
Contract Spy
Mar 27, 2026
Duration not stated
Senior Software Deployment Engineer at Mindera, London, £Competitive Day Rate (Outside IR35)
Contract Spy London, UK
Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release...
Contract Spy
Mar 24, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a principal-level engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Mar 24, 2026
Duration not stated
AI Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
  Job Title: AI Engineer (contract) Location: London Hybrid. Travel to the London office 2 days a week Duration: 6 months Contract Start Date: March 2026   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 We are looking for a AI Engineer to join our Data and AI Team supporting internal service delivery transformation projects across Tax and Legal. You will be a Python and Azure expert in designing and building cutting-edge generative AI solutions for complex challenges. You will report to the...
Contract Spy
Mar 20, 2026
Duration not stated
Senior Software Deployment Engineer at Mindera, London, £Contract Rate (Outside IR35)
Contract Spy London, UK
Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release reliability....
Contract Spy
Mar 17, 2026
Duration not stated
AI Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
  Job Title: AI Engineer (contract) Location: London Hybrid. Travel to the London office 2 days a week Duration: 6 months Contract Start Date: March 2026   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 We are looking for a AI Engineer to join our Data and AI Team supporting internal service delivery transformation projects across Tax and Legal. You will be a Python and Azure expert in designing and building cutting-edge generative AI solutions for complex challenges. You will report to the...
Contract Spy
Mar 13, 2026
Duration not stated
Senior Software Deployment Engineer - Contract - Ouside IR35 at minderacraft, London, £Competitive Day Rate
Contract Spy London, UK
Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership • Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. • Design scalable, repeatable deployment workflows and environment strategies. • Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. • Ensure environment readiness, configuration integrity, and...
Contract Spy
Mar 13, 2026
Duration not stated
Senior Software Deployment Engineer - Contract - Ouside IR35 at Mindera, London, £Contract Rate
Contract Spy London, UK
Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release reliability. Define and...
Contract Spy
Mar 10, 2026
Duration not stated
Senior Software Engineer at Red Badger, London, £Day Rate Outside IR35
Contract Spy London, UK
Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Emphasis on Architecture over Development (Must have a solid Development Background) Must be comfortable sitting in client meetings and advising Start date ASAP Duration 3 months (Likely to extend) 3 days / week in person working (London) Immediate Interviews     The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages.     Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning.     We are based at Old Street in the heart...
Contract Spy
Mar 06, 2026
Duration not stated
Senior Software Engineer at Medtronic, London, 6 Months, £Contract Rate
Contract Spy London, England, United Kingdom
At Medtronic you can begin a life-long career of exploration and innovation, while helping champion healthcare access and equity for all. You’ll lead with purpose, breaking down barriers to innovation in a more connected, compassionate world. A Day in the Life Medtronic Digital Technologies is creating ambitious new products that bring connectivity, real-time guidance, and decision support to the operating room. To support this mission, we are developing compact, high-performance, embedded systems that enable edge computing and connectivity. Working closely with other teams across Medtronic, we are creating a connected ecosystem and leveraging the state of the art in computer vision to provide the most comprehensive view of surgery. If you’re interested in using cutting-edge technology to improve the standard of care in surgery on a global scale, this could be the place for you. As a Senior Software Engineer, you’ll be performing development, primarily in...
Contract Spy
Mar 06, 2026
Duration not stated
Senior Software Deployment Engineer at Mindera, London, £Contract Rate (Outside IR35)
Contract Spy London, UK
Mindera are currently looking for a Senior Software Deployment Engineer who can lead the delivery, configuration, testing, and rollout of applications and retail device solutions across complex, large-scale environments. In this role you will help shape deployment strategy, drive automation, improve reliability, mentor engineers, and work closely with product, platform, and engineering teams to ensure smooth, secure, and high-quality releases that reaches thousands of customers. This is a hybrid role and you will be expected to be on site in Bracknell 3 days per week. Requirements Deployment & Configuration Leadership Lead end-to-end deployment processes across Dev, Test, UAT, Pre-Prod, and Production. Design scalable, repeatable deployment workflows and environment strategies. Drive automation across CI/CD pipelines using scripting, IaC, and tooling improvements. Ensure environment readiness, configuration integrity, and release reliability....
Contract Spy
Mar 31, 2026
Duration not stated
Senior DevOps & Infrastructure Engineer - Terraform at Red Badger, London, £Contract Rate
Contract Spy London, UK
We currently have an urgent opening for a skilled DevOps Engineer to join us on a contract basis ASAP. This is a major Greenfield platform build for a UK bank. Joining a cross functional team of 14, in the Infrastructure / DevOps phase of building a brand new payments platform from scratch. Required skills: Terraform AWS (some Azure) Kubernetes Secure enterprise platform development experience Account and user policies CI/CD pipeline development 2 days in person working (Monday & Weds - Canary Wharf) START DATE MONDAY 30th MARCH   The role   We're looking for a Senior DevOps / Platform Engineer to join a specific project with a leading UK Bank. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Senior DevOps / Platform Engineer has deep expertise in building and operating digital products,...
Contract Spy
Mar 26, 2026
Duration not stated
Senior Full Stack Developer at Deloitte, London, £Competitive Day Rate
Contract Spy London, UK
  Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer 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 We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position...
Contract Spy
Mar 24, 2026
Duration not stated
Senior DevOps & Infrastructure Engineer at Red Badger, London, £Contract Rate
Contract Spy London, UK
We currently have an urgent opening for a skilled DevOps Engineer to join us on a contract basis ASAP. This is a major Greenfield platform build for a UK bank. Joining a cross functional team of 14, in the Infrastructure / DevOps phase of building a brand new payments platform from scratch. Required skills: Terraform AWS (some Azure) Kubernetes Secure enterprise platform development experience Account and user policies CI/CD pipeline development 2 days in person working (Monday & Weds - Canary Wharf) START DATE MONDAY 30th MARCH   The role   We're looking for a Senior DevOps / Platform Engineer to join a specific project with a leading UK Bank. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Senior DevOps / Platform Engineer has deep expertise in building and operating digital products,...
Contract Spy
Mar 19, 2026
Duration not stated
Senior Full Stack Developer at Deloitte, London, £Competitive Day Rate
Contract Spy London, UK
  Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer 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 We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position...
Contract Spy
Mar 17, 2026
Duration not stated
Senior DevOps & Infrastructure Engineer at Red Badger, London, 30 March Start, £Contract Rate
Contract Spy London, UK
We currently have an urgent opening for a skilled DevOps Engineer to join us on a contract basis ASAP. This is a major Greenfield platform build for a UK bank. Joining a cross functional team of 14, in the Infrastructure / DevOps phase of building a brand new payments platform from scratch. Required skills: Terraform AWS (some Azure) Kubernetes Secure enterprise platform development experience Acount and user policies CI/CD pipeline development 2 days in person working (Monday & Weds - Canary Wharf) START DATE MONDAY 30th MARCH   The role   We're looking for a Senior DevOps / Platform Engineer to join a specific project with a leading UK Bank. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Senior DevOps / Platform Engineer has deep expertise in building and operating digital products,...
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