Backend Developer Contract Jobs in Cardiff
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107 Contract jobs sorted by:
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Date Posted
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Updating results…
107 Contract jobs
Software Developer - Consultant (Contract)
Posted 1 day ago by HACKAJOB LTD
Our client is a technology consultancy.Ready to work somewhere that cares more about how you build software than how fas...
- Rate Not specified
- Category Not specified
- Work type Not specified
- Location Newcastle Upon Tyne, Tyne And Wear
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Senior Backend Developer
Posted 1 day ago by Rullion Limited
AccountabilitiesPlaying a pivotal role in the backend engineering team, you will help to build full-stack cloud apps.You...
- Rate £800 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
SC Cleared Software Developer - Remote/Guildford or Newcastle - £70 per hour Umb...
Posted 1 day ago by Click
We are recruiting for a SC Cleared Java Cloud Engineer on contract to work for a leading Defence organisation. The role...
- Rate £70 per hour
- Category Inside
- Work type Hybrid
- Location Guildford/Newcastle/Remote
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Senior Software Developer - Allegro ETRM - Inside IR35 - Up to £700 per day
Posted 1 day ago by Hunter Bond
Role OverviewWe are seeking an experienced Senior Software Developer with strong Allegro ETRM experience to join a high-...
- Rate £700 per day
- Category Inside
- Work type Not specified
- Location London
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About Our Backend Developer Contract Roles in Cardiff
What does a backend developer contractor do?
Backend Developer contractors are engaged to build, maintain, and improve the server-side logic, databases, and APIs that power web applications and digital services. The work typically involves developing RESTful or GraphQL APIs, designing and optimising database schemas, building integrations between systems, implementing business logic, and ensuring that applications perform reliably at scale. Backend Developer contractors are used across virtually every sector, from fintech startups building new payment platforms to large enterprises modernising legacy systems, and are engaged when a team needs additional development capacity or specialist server-side expertise for a defined project.
The technical skills expected vary depending on the technology stack in use. The most common languages in the UK backend contracting market are Python, Java, .NET, Node.js, and PHP, with Go and Rust growing in demand for high-performance systems. Proficiency in SQL and experience with relational databases such as PostgreSQL or SQL Server is expected across most roles, alongside familiarity with NoSQL databases such as MongoDB or Redis depending on the application. Experience with cloud platforms, particularly AWS or Azure, is increasingly expected even for primarily backend-focused roles, as most modern applications are deployed in cloud environments. Strong knowledge of software engineering principles including testing, version control, and API design is assumed at all but the most junior levels.
What is the market like for backend developer contractors?
Backend Developer contracting is one of the largest and most well-established and active segments of the UK technology contracting market, driven by the ongoing demand for application development across every sector. The market is deep in terms of both volume and variety, spanning everything from short-term feature development engagements to multi-year platform modernisation programmes. Python and Java remain the dominant languages in terms of contract volume, though Node.js and Go are growing. The market has remained broadly stable in terms of rates, with backend specialists who combine strong language skills with cloud platform experience consistently able to command rates at the upper end of the developer contracting market.
What is the contracting market like in Cardiff?
Devolved government makes Cardiff the administrative centre of Wales and a consistent source of programme management, policy, and digital delivery contracts. Insurance and financial services employers, several of whom have established significant operational centres in the city, provide a steady flow of IT, data, and change roles. An emerging technology sector around the city centre and Cardiff Gate business park has added software development and cloud engineering to the local mix, though volumes remain modest compared to larger English cities. The Welsh Government's investment in digital capability is a distinctive feature of the Cardiff market, creating opportunities in govtech and public service transformation that are structured and funded differently from equivalent programmes in England.
How much do backend developer contractors usually earn in Cardiff?
Contract rates for backend developer roles in Cardiff typically range from £450 to £765 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement.
How many backend developer vacancies in Cardiff are there on Quality Contracts?
Over the past twelve months, we have tracked over 200 backend developer contract roles across the site, with Cardiff demonstrating consistent opportunities. Data reviewed up to September 2026.