Inside IR35 Contract Jobs in Cardiff
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41 Contract jobs sorted by:
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Date Posted
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Updating results…
41 Contract jobs
Senior Infrastructure Engineer
Posted 1 day ago by Network IT
You must have active SC Clearance6 months initiallyRemote – 1 day in the office every quarter£550-600 per day (Inside IR...
- Rate £600 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Infrastructure Engineer - Until April '27 - Inside IR35 - Mainly
Posted 1 day ago by Morson Edge
Senior Infrastructure EngineerContract: Until April 2027Location: Cardiff (Primarily Remote with Quarterly Onsite Attend...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location Cardiff, South Glamorgan
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Principal Oracle Payroll Functional/Technical Consultant
Posted 5 days ago by Experis
Principal Oracle Payroll Functional/Technical Consultant Location: UK (Remote with occasional travel to client sites) Ra...
- Rate £800 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
FullStack Developer
Posted 5 days ago by Experis
The OpportunityWe're looking for an experienced Full Stack Developer to join a delivery-focused engineering team, buildi...
- Rate £560 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Senior Core Network Engineer - NSO
Posted 5 days ago by Networking People (UK) Limited
Role SummaryContract with IT Systems Integrator working on a global Banking client project.Senior Core Network Engineer...
- Rate £465 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
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Product Manager - (SC Clearance Needed)
Posted 5 days ago by Harvey Nash
What You'll Be DoingDefining product visions, strategies, roadmaps and MVPs.Leading discovery and ideation workshops wit...
- Rate £500 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Senior Project Manager
Posted 5 days ago by Henderson Scott
Key ResponsibilitiesManage complex technology projects and workstreams from initiation through to implementation.Deliver...
- Rate Not specified
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Content Designer - Public Sector
Posted 5 days ago by Stealth IT Consulting Limited
Role OverviewWe are seeking an experienced Content Designer to join a high-profile public sector programme, helping to c...
- Rate £450 per day
- Category Inside
- Work type Not specified
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Delivery Manager
Posted 1 week ago by Stealth IT Consulting Limited
The roleYou'll be the person holding delivery together — balancing agile ceremonies and lean techniques with the practic...
- Rate £488 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Delivery Manager
Posted 1 week ago by TALENT INTERNATIONAL UK LTD
About the RoleWe are looking for an experienced Delivery Manager to lead and protect a motivated, multidisciplinary team...
- Rate £525 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
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About Our Inside IR35 Contract Roles in Cardiff
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.
What does Inside IR35 mean?
IR35 is UK tax legislation that determines whether a contractor is genuinely self-employed or working in a manner that resembles employment. When a contract is classified as inside IR35, income tax and National Insurance are deducted at source, typically via an umbrella company or agency PAYE. Headline day rates on inside IR35 engagements are generally higher than equivalent outside IR35 roles to account for the tax and employment cost structure.
Inside IR35 determinations are made where the working arrangements are considered to resemble employment, based on factors including the level of client control, the absence of a genuine right of substitution, and the presence of mutuality of obligation. Since April 2021, the end client is responsible for making this determination for medium and large private sector organisations. Many employers in financial services, government, and professional services assess the majority of their contractor engagements as inside IR35.
On QualityContracts.co.uk, approximately 49% of roles with a stated IR35 status are classified as inside IR35, making it the most common arrangement across the contract market. The proportion varies by sector and role type. Each listing on this page displays its IR35 status where provided by the hiring organisation.
How much do contractors usually earn in Cardiff when working Inside IR35?
Contract rates in Cardiff for inside IR35 engagements vary by discipline and seniority. Inside IR35 rates are typically 15% to 30% higher than equivalent outside IR35 roles to account for tax and national insurance deducted at source by the fee-payer. Filter by your specialism above for a more specific range.
How many Inside IR35 vacancies in Cardiff are there on Quality Contracts?
Over the past twelve months, we have tracked over 35,000 contract roles across the site, with roughly one in three sitting Inside IR35. Data reviewed up to September 2026.