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4 senior backend developer jobs found

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Remote 6 Months or more senior backend developer
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Contract Spy
May 18, 2026
6 Months or more
Senior Backend .NET Engineer (AWS, Claude Code) at Reapit Ltd, Remote, 6 Months, £Excellent Day Rate (Outside IR35)
Contract Spy Remote (United Kingdom)
Outside IR35 contract - 6 months - excellent day rate - remote 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 interaction, supporting...
Contract Spy
Jun 01, 2026
6 Months or more
Lead Developer at The Electoral Commission, Remote, £Contract Rate
Contract Spy Remote (United Kingdom)
The Role As Lead Developer, you'll take end-to-end ownership of a critical digital service, working across the full software development lifecycle from early-stage design and discovery through to delivery, scaling and ongoing live support. This is a hands on technical leadership role, with a genuine balance between engineering and collaboration. You'll remain close to the code while also working with product, data and stakeholders to shape the long-term direction of the service. You'll initially work closely with Democracy Club's developers, the third-party organisation which currently provides postcode specific election information. The initial stage involves working with existing code and evaluating how best to transition it in-house.   This role sits at the heart of one of the Commission's most significant digital initiatives - the transfer and development of a voter information service used by millions of citizens. You'll be responsible for delivering...
Contract Spy
May 28, 2026
6 Months or more
Lead Developer - SC Cleared at Ministry of Justice, Remote, 6 Months, £Contract Rate
Contract Spy Remote (London, UK)
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 Ministry of Justice (MoJ) priorities include improving public safety and reducing reoffending by reforming prisons, probation and youth justice, and building a justice system which makes access to justice swifter and more certain for all citizens whatever their background. Project professionals in the MoJ help to improve the government's ability to protect the public and reduce reoffending, and to provide a more effective, transparent and responsive criminal justice system for victims and the public.   As a  Lead Developer , your main responsibilities will be:...
Contract Spy
May 28, 2026
6 Months or more
Fullstack Developer - SC Cleared at Cabinet Office, Remote, 6 Months, £Contract Rate
Contract Spy Remote
The Cabinet Office supports the Prime Minister and ensures the effective running of government. The Cabinet Office is also the corporate headquarters for the government, in partnership with HM Treasury, and takes the lead in certain critical policy areas. More information about the Cabinet Office can be found on its website at: www.gov.uk/government/organisations/cabinet-office   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.    As a Fullstack Developer , your main responsibilities will be: Collaborate with stakeholders in the Cyber team to gather requirements, understand the project roadmap and align on...
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