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65 lead software engineer jobs found

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Contract Spy
Apr 22, 2026
Duration not stated
Lead Software Engineer at Dream Reality Interactive, United Kingdom, £Contract Rate
Contract Spy Remote (United Kingdom)
🚀 Lead Programmer - Narrative PC Deck Builder (Contract)   Are you a Senior or Lead Unity Programmer who enjoys writing clean code over navigating corporate red tape? Dream Reality Interactive , an award winning indie studio founded by former Sony PlayStation London Studio leadership, is looking for a Lead Programmer to own the technical architecture of our new, fully funded narrative deck builder for PC (Steam). Come and join a small, highly experienced team with a massive passion for making high-quality games that players obsess over. No fluff, just a focus on solid mechanics and a polished Steam release.   📍 The Details   Location: Remote (London, UK base) with ad-hoc team days Contract Type: Contract Start Date: June 1st, 2026   💻 What You’ll Do   As our technical lead, you will manage a highly capable, small engineering team while remaining hands-on with the codebase. You will have the autonomy...
Contract Spy
Apr 23, 2026
Duration not stated
Full Stack Developer (React, Java, Spring) at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job Title: Full Stack Developer (Java, Spring, React) - 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 an experienced 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 requires an...
Contract Spy
Apr 22, 2026
up to 6 Months
Senior Software Engineer, Native Applications and Networking at Secure Code Warrior, London, 3 Months, £Contract Rate
Contract Spy London, UK
Join Secure Code Warrior to create a safer digital landscape by assisting companies to secure their software through developer-led practices!   Secure Code Warrior’s mission is to establish new standards for coding that transform the ways software is created. We do this by providing the world’s leading agile learning platform that delivers the most effective secure coding solution for developers to learn, apply, and retain software security principles. More than 600 enterprises trust Secure Code Warrior to implement agile learning security programs, build safer software, and create a culture of developer-driven security. We are a venture-backed company with offices in Australia, the United States, Belgium, Iceland, and the United Kingdom.   Secure Code Warrior is seeking a Senior Engineer to take long-term ownership of our core system-level product suite across Windows and macOS. In this contract role, you will be the architectural...
Contract Spy
Apr 22, 2026
Duration not stated
Expert Lead Azure Databricks Engineer at A2 Consultancy, Manchester, £400-£500 per day
£400 - £500 per day
Contract Spy Manchester, UK
Job Summary We are seeking an experienced and highly skilled Lead Azure Databricks Engineer to join our dynamic team. The successful candidate will be responsible for designing, developing, and leading complex data engineering solutions within the Azure cloud environment. This role offers an exciting opportunity to work on cutting-edge data projects, optimise data workflows, and mentor junior team members. The ideal applicant will possess extensive expertise in Azure Databricks, big data processing, and cloud architecture, ensuring the delivery of scalable and efficient data solutions that support strategic business objectives. Duties Lead the design and implementation of large-scale data pipelines using Azure Databricks, ensuring optimal performance and scalability. Collaborate with cross-functional teams including data scientists, analysts, and software engineers to develop integrated data solutions. Architect and optimise cloud-based data workflows,...
Contract Spy
Apr 21, 2026
Duration not stated
Senior Software Deployment Engineer at Mindera, Bracknell, £Competitive Day Rate (Outside IR35)
Contract Spy Bracknell, 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
Apr 17, 2026
Duration not stated
Operational Technology (OT) Cyber Security Systems Engineer at Bilfinger UK, Chesterfield, £Contract Rate
Contract Spy Chesterfield, England, United Kingdom
Bilfinger UK is a leading engineering and maintenance provider, supporting customers across the chemical & petrochemical, nuclear, oil & gas, pharmaceuticals & biopharma, power & energy, utilities, renewables and food & beverage markets. We enhance the efficiency of assets, ensuring a high level of availability and reducing maintenance costs. We have extensive experience in offshore and onshore facilities; specialising in asset management services throughout all life cycle phases from consulting, engineering, manufacturing, assembly, operations, maintenance, and decommissioning. This commitment is delivered by an experienced and highly competent workforce of over 4,500 employees operating from 14 offices in strategic industrial hubs, upholding the highest standards of safety, compliance and quality. Role: We are seeking an experienced, committed and enthusiastic Operational Technology (OT) Cyber Security Systems Engineer to join our Automation team for a...
Contract Spy
Apr 17, 2026
Duration not stated
Software Engineer - Contract at ONMO, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
ABOUT THE COMPANY Onmo believes that everyone has the right to access, understand and manage their money with confidence. Our ambition is to improve lives by providing better clarity, intelligence and technology to empower every individual in making the smartest financial decisions. We may be young but we have an incredible team in place and big ambitions for the years ahead. We design our products to help demystify money matters wherever possible, providing customers with more financial control and flexibility in their lives. This helps them get more from what they have, or with smart decisions, make more of the same. It also means people spend less time with the negative aspects of money and more on the positive - enjoying what the world has to offer. ABOUT THE ROLE Tech Stack Backend : AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React / Next.js, React Native Programming...
Contract Spy
Apr 17, 2026
Duration not stated
DataOps Engineer at Test Yantra, London, £350-£400 per day
£350 - £400 per day
Contract Spy London, UK
Experience / Competences Proficiency in writing database queries using SQL and general understanding of relational databases, and in data pipeline design and development. Experience with ETL processes, familiarity with the AWS ecosystem e.g. S3, Glue, DMS, CLI, etc., and experience with tools such as Qliksense, PowerBI, or equivalent. Ability to setup database connections and manage related issues. Familiarity with data analysis on trading platforms to understand order and trade lifecycle events. Be able to work through, with completeness and accuracy, a technical checklist of data validation and feed the results back to the Data Lead Be able to understand the reconciliation approach of order and order event count matching and use analysis techniques to identify differences and their cause. Self-starter, strong problem solver and great attention to detail. Excellent written and verbal communication. Adaptable, resilient, and a forward thinker....
Contract Spy
Apr 16, 2026
Hourly/Freelance
AI Workflow Engineer - AI Trainer at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled AI Workflow Engineers to join the Tendem project (https://tendem.ai/) and build intelligent automation systems powered by LLMs within our hybrid AI + human environment. In this role, as an AI Pilot - that's how we refer to this position at Mindrift - you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide structured thinking, prompt engineering expertise, and quality control to deliver scalable and reliable AI-driven workflows. This part-time remote opportunity is ideal for professionals with hands-on experience in LLM integrations, prompt design, and AI-powered automation systems. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role This is a freelance role for a Tendem project. As an AI Workflow Engineer, you 'll design, build,...
Contract Spy
Apr 16, 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
Apr 16, 2026
up to 6 Months
Senior Software Engineer at Red Badger, London/Remote, 3 Months+, £Day Rate (Outside IR35)
Contract Spy Hybrid (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 of "tech city"...
Contract Spy
Apr 16, 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: May 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 Technical Lead and collaborate with data...
Contract Spy
Apr 16, 2026
Duration not stated
Full Stack Developer (React, Java, Spring) at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job Title: Full Stack Developer (Java, Spring, React) - 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 an experienced 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 requires an understanding of...
Contract Spy
Apr 16, 2026
6 Months or more
Lead Android Mobile Engineer at Mindera, London Paddington, 6 Months initial, £Contract Rate (Outside IR35)
Contract Spy Paddington, London, UK
Here at Mindera we are continuously developing a fantastic team and would love it for you to join us! As an Android Developer you will be creating fast, fluid, responsive and reliable mobile applications that provide our customers with a rewarding experience. You’ll have an opportunity to participate in the whole development cycle, using modern technologies, architectures and processes. When you join Mindera we welcome you into a fun and politics-free work culture, built on the principles of lean and self-organisation .   Please note: This position requires you to work on client-site in Paddington, London, three times a week. This is an initial six month contract position that sits outside IR35. Requirements You rock at Kotlin Java Jetpack Compose Coroutines (or RxJava); Software Architecture (MVVM or similar); Unit testing and UI tests; XML Being self-driven and working with little supervision towards a common team or...
Contract Spy
Apr 14, 2026
Duration not stated
Senior React Developer at Synechron, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
Are you a highly experienced front-end engineer passionate about building robust, high-performance systems? Do you want to be part of a global organisation that ensures the stability and efficiency of the world’s financial ecosystem? Synechron is looking for a talented Front-End Lead to spearhead our front-end transformation for post-trade services. This is a unique opportunity to work on cutting-edge technology within a prestigious, systemically important infrastructure provider. As the Lead Front-End Developer, you will be instrumental in rewriting and refactoring existing UI applications like Margin Manager and Collateral Manager using our strategic workspace UI components. You will design and build a unified portal to provide seamless access across various internal systems, ensuring a cohesive look and feel. Your expertise will help champion clean, maintainable code and uphold strict resiliency standards within an AWS environment. You will collaborate closely with...
Contract Spy
Apr 14, 2026
6 Months or more
SW Validation Engineer at Stackstudio Digital Ltd., Warwick, 6 Months, £Contract Rate
Contract Spy Warwick, UK
Role/Job Title: SW Validation Engineer Work Location: Gaydon, UK Mode of Working: Onsite Duration of Assignment: 06 Months Any Other Working Conditions (travel/on call/shifts): Yes some times Shift/overtime The Role This is a rapidly growing area in which our in-house software is critical in enabling a world class charging experience for our customers. Our teams plan, design, integrate and validate the charging system software to ensure we deliver our charging systems on time and to quality. In this role you will be working in an Agile environment to lead our in-house software verification using the latest hardware in the loop and test automation capability. You will be part of a team that is engineering visionary charging products. Your Responsibilities (Up to 10, Avoid repetition) Lead a diverse team to validate in-house SW for our charging/discharging products Develop and execute test plans associated with our...
Contract Spy
Apr 14, 2026
Duration not stated
Senior Software Deployment Engineer at Mindera, Bracknell, £Competitive Day Rate (Outside IR35)
Contract Spy Bracknell, 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
Apr 09, 2026
6 Months or more
Lead Android Mobile Engineer at Mindera, London Paddington, 6 Months initial, £Contract Rate (Outside IR35)
Contract Spy Paddington, London, UK
Here at Mindera we are continuously developing a fantastic team and would love it for you to join us! As an Android Developer you will be creating fast, fluid, responsive and reliable mobile applications that provide our customers with a rewarding experience. You’ll have an opportunity to participate in the whole development cycle, using modern technologies, architectures and processes. When you join Mindera we welcome you into a fun and politics-free work culture, built on the principles of lean and self-organisation .   Please note: This position requires you to work on client-site in Paddington, London, three times a week. This is an initial six month contract position that sits outside IR35. Requirements You rock at Kotlin Java Jetpack Compose Coroutines (or RxJava); Software Architecture (MVVM or similar); Unit testing and UI tests; XML Being self-driven and working with little supervision towards a common team or...
Contract Spy
Apr 09, 2026
6 Months or more
Automation Test Engineer at Department for Work & Pensions, Manchester, 12 Months, £Contract Rate
Contract Spy Manchester, UK
The Department for Work and Pensions (DWP) is responsible for welfare, pensions, and child maintenance policy. As the UK's biggest public service department, it administers the State Pension and a range of working age, disability and ill health benefits to around 20 million claimants and customers. As such, we operate on a scale that is almost unmatched anywhere in Europe and most people in Britain come into contact with us at some point in their lives.   Working with DWP, you will be helping us to drive our priorities to: Help people to move into work and support those already in work to progress, with the aim of increasing overall workforce participation Help people to plan and save for later life, while providing a safety net for those who need it now Provide effective, efficient, and innovative services to the millions of claimants who rely on us every day, including the most vulnerable in society Improve experience of our services while maximising...
Contract Spy
Apr 09, 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...
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