Inside IR35 Contract Jobs in Cardiff
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34 Contract jobs sorted by:
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Date Posted
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34 Contract jobs
Test Planning Lead
Posted Today by Experis
Role purpose / summaryOwn and drive the end-to-end test planning for a mainframe product migration programme, ensuring a...
- Rate Not specified
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Lead Azure Data Engineer
Posted Today by Experis
The OpportunityWe're looking for an experienced Lead Azure Data Engineer to play a key role in delivering a large-scale...
- Rate £675 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
UNIX Engineer
Posted Today by Experis
The OpportunityWe're looking for an experienced UNIX Engineer to join a major infrastructure programme supporting critic...
- Rate £550 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
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Senior Dataverse Solution Architect - Dataverse SME - Power Apps - ACTIVE SC Cle...
Posted 1 day ago by Nexere Consulting Limited
Senior Dataverse Solution Architect - Dataverse SME - Power Apps - ACTIVE SC Clearance RequiredMy client who are leaders...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location London/Cardiff/Glasgow
Workday Consultant
Posted 3 days ago by Experis
Role OverviewWe are seeking an experienced Workday Consultant to support the delivery of major HR and Finance transforma...
- Rate £690 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
M365 / Messaging & Discovery Engineer – UK Fully Remote Contract
Posted 4 days ago by S Merrick LTD
M365 / Messaging & Discovery Engineer – Remote ContractAn excellent opportunity has arisen for an experienced Micros...
- Rate £450 per day
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
SIEM Engineer (SC Clearance required)
Posted 5 days ago by Harvey Nash
Harvey Nash is now inviting candidates to apply for the role of SIEM Engineer, candidates applying must have valid Secur...
- Rate £700 per day
- Category Inside
- Work type Not specified
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Oracle Data Architect
Posted 5 days ago by Synergize Consulting Limited
OverviewWe are seeking an experienced Data Integration Solution Architect to design and implementing a secure, scalable...
- Rate Not specified
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Head of Middleware Platform
Posted 6 days ago by Experis
The RoleWe're looking for an experienced Head of Middleware Platform to lead the security, governance, and strategic dir...
- Rate £490 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Interim SC Cleared Commercial/Procurement Mgr - Construction
Posted 6 days ago by Cedar Recruitment
About the OpportunityThis role sits at the heart of major public sector and critical national infrastructure programmes....
- Rate £750 per day
- Category Inside
- Work type Not specified
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Project Manager - Engineering/Manufacturing
Posted 7 days ago by Henderson Scott
Key responsibilitiesLeading multidisciplinary project teams across multiple locationsDefining project scope, requirement...
- Rate Not specified
- Category Inside
- Work type Remote
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Automation Tester
Posted 1 week ago by Stott & May Professional Search Limited
Role overviewDevelop and maintain automated black-box and white-box tests.Build a strong technical understanding of syst...
- Rate £535 per day
- Category Inside
- Work type Hybrid
- Location UK; London; Birmingham; Manchester; Glasgow; Liverpool; Leeds; Edinburgh; Bristol; Cardiff; Nottingham
Cyber Security Consultant
Posted 1 week ago by Experis
The OpportunityWe are seeking an experienced Cyber Security Consultant to support supplier onboarding and security proce...
- Rate £615 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 August 2026.