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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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AI Contract Rates in Leeds: Day Rate Quartiles and Demand
Live market telemetry, compensation quartiles, and IR35 compliance benchmarks across the UK contract sector.
Median Daily Rate
£575/day
-17.9%
Interquartile Range
£465/day – £650/day
Middle 50% market distribution
Contract Engagement Split
47% Outside IR35
13% Inside IR35 engagements
Market Conditions and Compensation Trajectory
Remuneration intelligence covering contract AI positions in Leeds identifies established compensation benchmarks across active project accounts. Throughout verified local client accounts, daily remuneration anchors at an industry median of £575/day, reflecting a -17.9% variance compared to national UK baselines. Quartile metrics across active assignments define a range from £465/day to £650/day. From a regulatory and off-payroll perspective, 47% of verified vacancies are determined outside the scope of IR35. Figures summarise advertised pay on this hub to November 2026 and are market statistics, not a personal offer or guaranteed assignment 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 | £575/day | Mid-market advertised pay for this hub |
| 25th percentile (P25) | £465/day | Lower-quartile priced vacancies |
| 75th percentile (P75) | £650/day | Upper-quartile priced vacancies |
| Outside IR35 share | 47% | Stated limited-company / outside SDS |
| Inside IR35 share | 13% | Stated PAYE / umbrella / inside SDS |
| Undetermined IR35 | 40% | Adverts that omit a published status |
| Leading sector | AI & Machine Learning (58%) | Largest hiring cluster in the sample |
| Priced sample | 24 roles | Vacancies used for the rate corridor |
| Regional rate band | major-city rate parity | Location pricing context, not an SDS |
Statutory Standards and Frequently Asked Questions
A AI contract based in Leeds is still assessed on facts, not postcode. Status paperwork should reflect Leeds attendance, hybrid days, and substitution. Inside IR35 AI pay in Leeds is usually umbrella or PAYE, while an outside SDS lets the Leeds contractor invoice through a limited company. Advertised Leeds rates follow major-city rate parity, so city uplifts do not imply an outside finding. Travel between home and a Leeds office is rarely a substitute right. Check Leeds on-site expectations for this AI before you treat the SDS as settled.
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