Outside IR35 AI Trainer Contract Jobs
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95 Contract jobs
Senior Combined ADHD Assessor & Prescriber for Children - Redruth, Cornwall
Posted 1 day ago by Paloma Health
The role of Senior Combined ADHD Assessor & Prescriber for Children at Paloma involves delivering high-quality ADHD neur...
- Rate £67,000 per year
- Category Outside
- Work type Remote
- Location Redruth, Cornwall
AI Engineer - Remote - Outside IR35 - Python - LLMs - Azure - RAG
Posted 4 days ago by We Are Orbis Group Ltd
The AI Engineer role focuses on developing production AI applications for a well-funded technology company, leveraging P...
- Rate Negotiable
- Category Outside
- Work type Remote
- Location United Kingdom
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AI Engineer - Agentic AI
Posted 4 days ago by LA International Computer Consultants Lt...
The AI Engineer role involves developing production agentic AI systems in Brighton, focusing on designing, building, and...
- Rate £360 per day
- Category Outside
- Work type Onsite
- Location Brighton, East Sussex, UK
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Sign Upsoftware development engineer 3 (applied ml & telemetry)
Posted 5 days ago by Randstand (USA)
Join a dynamic engineering team focused on modernizing and automating telemetry and industrial controls data processes a...
- Rate Negotiable
- Category Outside
- Work type Remote
- Location redmond, washington (remote)
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About Our Outside IR35 AI Trainer Contract Roles
What does a ai trainer contractor do?
The AI Trainer contractor role centres on the ability to generate, review, label, and evaluate the data used to train and improve artificial intelligence models, particularly large language models and other generative AI systems. The work varies depending on the client and model type but typically involves writing high-quality prompt and response pairs, evaluating model outputs for accuracy, helpfulness, and safety, identifying failure modes and edge cases in model behaviour, and providing structured feedback that feeds directly into model fine-tuning and reinforcement learning processes. AI Trainers are primarily engaged by AI companies, technology firms developing AI products, and research organisations building or refining foundation models.
The skills expected depend on the specific domain focus of the engagement. Generalist AI Trainer roles require strong written communication skills, critical thinking, and the ability to evaluate nuanced outputs objectively. Specialist roles in areas such as legal, medical, scientific, or coding content require deep domain expertise alongside the ability to assess AI outputs against the standards of that field. Familiarity with annotation platforms and data labelling tools is useful, as is a conceptual understanding of how large language models work. While AI Trainer contracts can be accessible to candidates without deep technical backgrounds, the highest-value engagements consistently go to those with both domain expertise and a clear understanding of what good AI output looks like.
What is the market like for ai trainer contractors?
The AI Trainer contracting market has grown rapidly in line with the expansion of large language model development, but it is a structurally different market to most other AI contractor disciplines. Volume is high at the generalist end but rates are relatively modest. The more commercially interesting segment involves specialist domain trainers , lawyers, doctors, scientists, and senior engineers , who can evaluate and generate training data in high-stakes technical areas where model accuracy is critical. These engagements command rates more consistent with the underlying domain expertise, and demand in this segment is growing as AI companies seek to improve model performance in regulated and specialist fields.
What does Outside 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 outside IR35, the engagement is treated as a business-to-business arrangement. The contractor operates through their own limited company, invoices for services, and manages their own tax affairs including corporation tax, self-assessment, and VAT where applicable.
Outside IR35 engagements are assessed against three key factors: the degree of control the client exercises over how the work is delivered, whether the contractor has a genuine right to provide a substitute, and whether there is a mutuality of obligation between the parties. Contracts that demonstrate contractor autonomy, project-based delivery, and the absence of ongoing employment obligations are more likely to sit outside IR35. Since April 2021, responsibility for making this determination sits with the end client for medium and large private sector organisations.
On QualityContracts.co.uk, approximately 28% of roles with a stated IR35 status are classified as outside IR35. The proportion varies by sector and role type, with some disciplines seeing a significantly higher or lower share of outside IR35 opportunities. Each listing on this page displays its IR35 status where provided by the hiring organisation.
What ai trainer roles are usually Outside IR35?
AI trainer contracts are almost universally outside IR35 where status is stated. The work, evaluating model outputs, creating training datasets, and providing human feedback to improve AI systems, is typically structured as a clear output with clear quality metrics. AI companies and organisations fine-tuning large language models are the primary clients. Many of these engagements are fully remote and project-based, with contractors working independently against agreed output targets.
How much do ai trainer contractors usually earn when working Outside IR35?
Contract rates for ai trainer roles typically range from £250 to £450 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement. Rates shown are for outside IR35 engagements and reflect the gross day rate paid to the contractor's limited company before any personal tax obligations.
How many Outside IR35 ai trainer vacancies are there on Quality Contracts?
Over the past twelve months, we have tracked over 100 ai trainer contract roles across the site. Of the roles currently listed on our site, around one in four are Outside IR35. Data reviewed up to June 2026.