Guide
How to Hire an AI Expert in the UK: Roles, Routes and Red Flags
To hire an AI expert in the UK, first decide what you need built. Then pick the role, choose a route (employee, contractor or agency), test candidates with real work and agree the scope in writing. Most small firms get further by buying a finished system than by hiring a specialist.
Do I need to hire at all?
Ask what you want done. If you want a known job automated, such as invoices, calls or follow ups, an agency can build it and hand it over. You do not need a hire.
Hire when AI is central to your product, or when you want someone in house to keep improving your systems. See our AI automation service if you only need the build.
Which role do I need?
Match the role to the problem. Our guide to types of AI roles you can hire sets out the options. In short:
Automation specialist for routine work
Machine learning engineer for models and products
Data scientist for forecasts and analysis
Governance lead for safe, lawful use
Employee, contractor or agency?
| Route | Good for | Watch out for |
|---|---|---|
| Employee | Ongoing work and building knowledge in house | Slower to start, and a longer commitment |
| Contractor | A defined project or a skills gap | Tax status and handover when they leave |
| Agency | A finished result with less management from you | Check what you own at the end |
What is IR35 and does it matter?
IR35 is the UK off payroll working rules. They decide whether a contractor should be taxed like an employee. If you hire a contractor who works through their own company, you may need to assess their status. Read HMRC's guidance on off payroll working and ask your accountant. The rules differ for small companies and larger ones.
What does it cost?
It varies by role, experience and location. We do not quote figures here. For salary data, see the ONS Annual Survey of Hours and Earnings. Contractor and agency rates are agreed case by case.
What should I ask in an interview?
What have you built, and can you show it?
What went wrong on your last project, and what did you change?
How do you test that the system works?
How do you handle personal data and UK GDPR?
How would you explain the result to a non technical colleague?
Give a short paid task if you can. Real work shows more than a CV.
What are the red flags?
Promises of results before they ask about your data
No examples they can show or discuss
Vague answers on data protection
Pressure to sign fast
Claims to be an expert in everything
Common questions
How long does hiring take?
It depends on the role and the market. Plan for weeks, not days.
Should I hire a freelancer?
It can work for a defined project. Agree scope, ownership and handover in writing.
Do I own what they build?
Only if the contract says so. State ownership of code, prompts and data clearly.
Is it safe to give an AI expert access to my data?
Give the least access needed and use a written agreement that covers data protection.
Can HAeX help?
Yes. We supply AI and automation specialists. See AI Recruitment.
How HAeX can help
We can place the specialist, or build the system for you. If you are unsure which, talk to us first.
Using AI in your own hiring? Read the UK employer's checklist.
Talk through your hire
The first call is free. We tell you whether you need a hire at all, or whether a project does the job.