9 software contractor jobs found in London

This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future of sovereign security, we want to...

Senior Software Engineer - Outside IR35 - Contract (Energy)   About the role   We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector.   End date is not certain, but likely to be December 2026 or early Q1 2027.   We are looking for experience in the following technologies:   Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python   Experience in the below would also be beneficial:   Azure DevOps (pipelines) SQL   We generally spend 2 days per week on-site with the client in central London (Monday & Thursday).   £500-600 per day outside IR35   Start date: 10/08/2026 End date: December 2026 or early Q1 2027   About Softwire  ...

Are you an exceptional Senior Technical Business Analyst who embodies our values of pragmatism, professionalism, and transparency? We 're seeking an individual who shares our commitment to excellence. This role is predominantly remote, though you may be required to travel to our London office once or twice over the course of the engagement.   As a Codurance Technical Business Analyst, you will be a pivotal link between clients, stakeholders and team members, ensuring successful delivery outcomes for all parties involved. This role is centred around a mobile application being developed for a large logistics organisation. You will be the sole BA embedded within a team of client engineers, working in parallel with Codurance colleagues on a broader engagement. It thrives on building trust and fostering collaborative environments, making it ideal for someone who can quickly earn the confidence of senior stakeholders and engineers alike while keeping delivery on track....

Codurance is a global software professional services consultancy, helping clients continuously deliver value through the adoption of quality practices and technical excellence. Software craftsmanship is at the heart of everything we do. We build well-crafted software and help development teams get better at continuously delivering software through the application of extreme programming practices and software craftsmanship values. In 2010, our founders started the London Software Craftsmanship Community (LSCC), now the largest and most active software craftsmanship community in the world, with more than 5,500 developers. Codurance was founded in 2013 and has carried that same community spirit ever since. Budget: £550 - £600 / per day InsideIR35 6 Months contract Requirements We're looking for a Contract Agile Delivery Manager who shares our values of pragmatism, professionalism and transparency. Working from your affiliated office location (London,...

Full job description This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future...

Senior Software Engineer - Outside IR35 - Contract (Energy)   About the role   We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector.   End date is not certain, but likely to be December 2026 or early Q1 2027.   We are looking for experience in the following technologies:   Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python   Experience in the below would also be beneficial:   Azure DevOps (pipelines) SQL   We generally spend 2 days per week on-site with the client in central London (Monday & Thursday).   £500-600 per day outside IR35   Start date: 10/08/2026 End date: December 2026 or early Q1 2027   About Softwire  ...

Full job description This role is delivered within secure environments. Candidates must be eligible for UK SC and DV clearance and hold UK Citizenship. Opening: Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving the most complex data assurance challenges in the UK public sector. Currently, we are working on a landmark transformation of a cross-government secure IT system. This is an exciting opportunity to help architect a private cloud environment from the ground up and modernize the end-user services that power national decision-making. We don't believe in "billing by the hour" or rigid hierarchies; we are a lean, expert team focused on delivering high-impact technical outcomes. If you are a self-starter who thrives on autonomy and wants to see your engineering or architectural decisions shape the future...

Senior Software Engineer - Outside IR35 - Contract (Energy)   About the role   We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector.   End date is not certain, but likely to be December 2026 or early Q1 2027.   We are looking for experience in the following technologies:   Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python   Experience in the below would also be beneficial:   Azure DevOps (pipelines) SQL   We generally spend 2 days per week on-site with the client in central London (Monday & Thursday).   £500-600 per day outside IR35   Start date: 10/08/2026 End date: December 2026 or early Q1 2027   About Softwire  ...

Senior AI/ML Research Engineer   London, United Kingdom | Posted on 23/07/2026 Contract Role: Senior AI/ML Research Engineer Contract Location: London Contract Duration: 6 months initially (with potential extension) Contract Start Date: Immediate Contract Classification: Inside IR35   Daily Rate breakdown Traditional Daily Rate: £600 Agreed Contract Rate (ACR): £462 Equivalent Annual Salary: £120k + £14.5k holiday pay Payroll provider: Rockford Payroll  Info for Contingent Workers – Rockford Pay   Overview The Senior AI/ML Research Engineer will be a key member of the GenAI team within the Data & AI organisation, responsible for designing, developing, and deploying scalable AI/ML solutions across multiple business areas. The role focuses on delivering production-grade machine learning systems while ensuring alignment with enterprise quality, reliability, and...