6 contract software engineer jobs found in London

Senior Java & Kotlin Backend Engineer Location: London (Hybrid - Wednesday office attendance required) Contract: Initial 2 months IR35: Outside IR35 Start Date: ASAP The Role We 're working with a leading technology organisation seeking an experienced Senior Java & Kotlin Backend Engineer to join their engineering team on an initial two-month contract. This role offers the opportunity to contribute to greenfield backend development, building scalable, cloud-native microservices within a modern engineering environment. You 'll work alongside cross-functional teams to design, develop and deliver high-quality backend solutions that are secure, reliable and built for scale. Key Responsibilities Design, develop and maintain backend services using Java and Kotlin. Build and enhance RESTful APIs within a microservices architecture. Develop secure, scalable and high-performance applications. Collaborate with...

Senior Java & Kotlin Backend Engineer Location: London (Hybrid - Wednesday office attendance required) Contract: Initial 2 months IR35: Outside IR35 Start Date: ASAP The Role We're working with a leading technology organisation seeking an experienced Senior Java & Kotlin Backend Engineer to join their engineering team on an initial two-month contract. This role offers the opportunity to contribute to greenfield backend development, building scalable, cloud-native microservices within a modern engineering environment. You'll work alongside cross-functional teams to design, develop and deliver high-quality backend solutions that are secure, reliable and built for scale. Key Responsibilities Design, develop and maintain backend services using Java and Kotlin. Build and enhance RESTful APIs within a microservices architecture. Develop secure, scalable and high-performance applications. Collaborate with Product Managers, Engineers and technical...

Full Stack Engineer - Azure, C#, .Net, React / ReactJS Outside IR35 12 Month Contract Fully Remote (UK only) £375 - 425 Per Day We 're currently working with a London based MedTech company who are searching for a Full Stack Engineer who has extensive experience working with Azure, C#, .Net and React / ReactJS. This project will see you working alongside a small existing team of developers, adding additional capacity to make business critical updates and enhancement to their existing Azure based core platform, with the bulk of the work will focus on enhancing the workflow engine! We are looking for an experienced Full Stack Engineer who is comfortable working on complex software platforms and is able to get up to speed quickly in new environments. Required Skills / Experience Extensive commercial experience with: Azure - Azure Functions, Azure API Management, Azure Services, Azure B2C Directory, Azure...

Network Security Engineer (SC Cleared) UK Remote + Occasional Travel 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance. Hands-on experience of F5, Zscaler + Palo Alto technologies preferred. 6 Month Contract. Start ASAP in July/August 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Wokingham, Corsham, Farnborough + Warwick. Working with a global IT Consultancy supporting a leading Telecoms end client: Strong hands-on experience of: F5, Zscaler + Palo Alto IT security technologies, including Firewalls + Network Security. Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of contact + escalation for Security related changes, modifications + projects for firewall rule bases. Providing technical support, Change management, for hard...

Network Security Engineer (SC Cleared) UK Remote + Occasional Travel 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance. Hands-on experience of F5, Zscaler + Palo Alto technologies preferred. 6 Month Contract. Start ASAP in July/August 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Wokingham, Corsham, Farnborough + Warwick. Working with a global IT Consultancy supporting a leading Telecoms end client: Strong hands-on experience of: F5, Zscaler + Palo Alto IT security technologies, including Firewalls + Network Security. Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of contact + escalation for Security related changes, modifications + projects for Firewall rule bases. Providing technical support, Change management, for...

Delivery Manager Outside IR35 Contract £350 per day | Initial 6 Months | 2 Days Onsite | Central London We're looking for a hands-on Delivery Manager to join a well-established retail business undergoing a major technology transformation. This isn't a traditional Project Management role and it isn't a strategic Product Management position. We're looking for someone who enjoys working closely with software engineering teams, taking broad business requirements and turning them into clear, deliverable pieces of work. You'll act as the bridge between the business and engineering, helping shape solutions, manage delivery and ensure development teams have everything they need to keep work moving. Retail, ecommerce and customer-facing digital product experience would be highly advantageous. The Role You'll be embedded within a cross-functional engineering team, working alongside Product Managers, Developers and stakeholders to turn business ideas into...