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PhD Synthetic and Analytical Chemist, AI Expert (Remote, UK or US East Coast)
Posted Today by Weekday AI
Job OverviewWe are seeking highly skilled PhD-qualified chemists with strong expertise in synthetic and analytical chemi...
- Rate £100 per hour
- Category Outside
- Work type Remote
- Location United Kingdom
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PhD Genomics and Cell Biology Scientist, AI Expert (Remote, UK or US East Coast)
Posted Today by Weekday AI
Job OverviewWe are looking for highly skilled PhD-qualified scientists in genomics and cell biology to contribute to the...
- Rate £100 per hour
- Category Outside
- Work type Remote
- Location United Kingdom
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Urgent Hiring||full Stack Ai Engineer With Conversational Ai & Voice Ai Exp.||re...
Posted Today by Shift Code Analytics
POSITION SUMMARYThe Full Stack AI Engineer II designs, builds, tests, deploys, and operates enterprise-grade AI agents a...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote
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Sign UpAI Outside IR35 Contracts: Compliance and Take-Home Pay
Live market telemetry, compensation quartiles, and IR35 compliance benchmarks across the UK contract sector.
Median Daily Rate
£600/day
-14.3%
Interquartile Range
£600/day – £800/day
Middle 50% market distribution
Contract Engagement Split
100% Outside IR35
0% Inside IR35 engagements
Market Conditions and Compensation Trajectory
IR35-filtered AI hiring in the UK is the subject of this page, not a generic role or city landing page. The mid-market day rate inside this IR35 filter is £600/day, with quartiles from £600/day to £800/day from 17 priced, status-filtered roles to November 2026. The disclosed mix on this slice is 100% outside IR35 and 0% inside IR35. The filtered sector peak is AI and Machine Learning at 63%. Rate context remains UK-wide rate parity, which does not override the SDS. Use the filtered list to test umbrella versus limited company economics on the same day rate.
Daily Rate Quartiles and Market Benchmarks
Values combine advertised day rates, stated IR35 outcomes, and sector labels from vacancies matching this hub. Quartiles use priced roles only.
| Metric | Value | What it shows |
|---|---|---|
| Median day rate | £600/day | Mid-market advertised pay for this hub |
| 25th percentile (P25) | £600/day | Lower-quartile priced vacancies |
| 75th percentile (P75) | £800/day | Upper-quartile priced vacancies |
| Outside IR35 share | 100% | Stated limited-company / outside SDS |
| Inside IR35 share | 0% | Stated PAYE / umbrella / inside SDS |
| Undetermined IR35 | 0% | Adverts that omit a published status |
| Leading sector | AI & Machine Learning (63%) | Largest hiring cluster in the sample |
| Priced sample | 17 roles | Vacancies used for the rate corridor |
| Regional rate band | UK-wide rate parity | Location pricing context, not an SDS |
Statutory Standards and Frequently Asked Questions
Off-payroll (IR35) is the organising rule on this page. The end client, not the contractor, issues the Status Determination Statement covering the AI engagement in the UK. An inside SDS puts income through PAYE, with employer NI and typically umbrella or in-house payroll. Outside IR35 means a business-to-business supply: the limited company invoices the fee-payer and accounts for corporation tax. Do not treat a fixed-term salary as an outside finding. CEST and working-practices evidence (control, substitution, mutuality) still matter more than the vacancy label. Do not start a AI engagement in the UK on an assumed status.
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