Outside IR35 Machine Learning Engineer Contract Jobs
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Need 12+ Years Profiles - AWS AI/ML Engineer – Medicaid (Python & SageMaker) - R...
Posted 4 days ago by 3AMIGOSIT LLC
Job SummaryWe are seeking an experienced AWS AI/ML Engineer to support a Medicaid modernization initiative for an HHS cl...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote
AI/ML Engineer - St. Louis, MO, Philadelphia, PA, Wilmington, DE, Columbus, OH,...
Posted 5 days ago by TechniPros, LLC
Job SummaryWe are hiring experienced AI/ML Engineers to support a cutting-edge Healthcare AI initiative. The ideal candi...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or St. Louis, Missouri
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AI/ML Engineer - Austin, TX, Houston, TX, Denver, CO, Phoenix, AZ, Nashville, TN...
Posted 5 days ago by TechniPros, LLC
Job SummaryWe are seeking an experienced AI/ML Engineer to design, develop, and deploy enterprise-grade Machine Learning...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Austin, Texas
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Sign UpSenior AI/ML Engineer - Boston, MA, Hartford, CT, Princeton, NJ, Philadelphia, P...
Posted 5 days ago by TechniPros, LLC
Job SummaryWe are seeking an experienced Senior AI/ML Engineer to design, develop, and deploy enterprise AI/ML solutions...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Boston, Massachusetts
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Sign UpAI/ML Engineer-Austin, TX, Houston, TX, Denver, CO, Phoenix, AZ, Nashville, TN.
Posted 5 days ago by TechniPros, LLC
Job SummaryWe are seeking an experienced AI/ML Engineer to design, develop, and deploy enterprise-grade Machine Learning...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Dallas, Texas
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Senior JavaScript Engineer (Machine Learning) contract - London - Outside IR35 (...
Posted 1 week ago by Ventula Consulting
The roleWorking as an integral part of an agile team contributing towards the planning and development of systems/platfo...
- Rate £575 per day
- Category Outside
- Work type Hybrid
- Location London, UK
Sr. AI/ML Engineer - Austin, TX, Houston, TX, Denver, CO, Phoenix, AZ, Nashville...
Posted 1 week ago by TechniPros, LLC
Job SummaryWe are seeking a highly experienced Senior AI/ML Engineer to architect and develop enterprise-scale Generativ...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Austin, Texas
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Sign UpSenior AI/ML Engineer - Chicago, IL, Minneapolis, MN, Detroit, MI, St. Louis, MO...
Posted 1 week ago by TechniPros, LLC
Job SummaryWe are seeking an experienced Senior AI/ML Engineer to design, develop, and deploy enterprise AI/ML solutions...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Chicago, Illinois
Senior AI/ML Engineer-Austin, TX, Houston, TX, Denver, CO, Phoenix, AZ, Nashvill...
Posted 1 week ago by TechniPros, LLC
Job SummaryWe are seeking a highly experienced Senior AI/ML Engineer to architect and develop enterprise-scale Generativ...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote or Austin, Texas
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About Our Outside IR35 Machine Learning Engineer Contract Roles
What does a machine learning engineer contractor do?
As a contract Machine Learning Engineer, you are hired to build the production-grade systems and infrastructure that take machine learning models from research and experimentation into reliable, scalable deployment. The role is distinct from data science in its emphasis on engineering rigour: Machine Learning Engineers are responsible for the pipelines, APIs, monitoring systems, and operational infrastructure that enable models to run in production, be retrained as new data arrives, and be evaluated continuously for performance and drift. Contract engagements arise when organisations are moving AI capabilities out of the experimentation phase, when an existing ML platform needs to be rebuilt or modernised, or when a data science team needs engineering support to deploy and maintain the models they have developed.
Machine Learning Engineer contractors are expected to bring a combination of software engineering strength and ML systems knowledge that is rarer than either skill in isolation. Strong Python skills are universal, alongside experience with ML frameworks including PyTorch, TensorFlow, or scikit-learn. Proficiency with MLOps tooling for experiment tracking, model versioning, and pipeline orchestration, with MLflow, Weights and Biases, and Kubeflow or similar being widely expected, is a defining competency of the Machine Learning Engineer specialism. Experience deploying models as REST APIs using FastAPI or similar, containerising ML workloads with Docker, and orchestrating them with Kubernetes is expected in most engagements. Cloud ML platform experience, particularly AWS SageMaker, Azure ML, or Google Vertex AI, is widely required as most production ML deployments run on managed cloud infrastructure. The ability to design and implement feature stores, data validation pipelines, and model monitoring systems rounds out the senior ML Engineer contractor profile.
What is the market like for machine learning engineer contractors?
The market for Machine Learning Engineer contractors is one of the strongest and most consistently in-demand specialisms within the UK technology contracting market. The gap between organisations' appetite for AI capabilities and their engineering capacity to deploy them reliably at scale is the fundamental driver of sustained ML Engineer contract demand. Financial services, retail, healthcare, and technology companies are the most active buyers, spanning use cases from credit scoring and fraud detection through to recommendation engines and operational AI. The explosion of LLM adoption has expanded the scope of the Machine Learning Engineer role to include LLM integration and fine-tuning work alongside traditional ML systems. Rates are at the top of the engineering contracting market, reflecting the combination of software engineering depth and ML systems expertise required.
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 machine learning engineer roles are usually Outside IR35?
Machine learning engineering has one of the strongest outside IR35 profiles in the technology sector, with around 65% of contracts sitting outside among those specifying IR35 treatment. The research-adjacent nature of ML engineering, building and deploying specific models, experimenting with architectures, and optimising inference pipelines, creates engagements that can be clearly scoped as projects. AI companies, healthtech firms, and organisations building production ML capabilities generate the strongest outside IR35 demand. PyTorch, TensorFlow, and MLOps platform experience are standard requirements.
How much do machine learning engineer contractors usually earn when working Outside IR35?
Contract rates for machine learning engineer roles typically range from £600 to £1000 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 machine learning engineer vacancies are there on Quality Contracts?
Over the past twelve months, we have tracked over 200 machine learning engineer contract roles across the site. Of the roles currently listed on our site, around one in four are Outside IR35. Data reviewed up to July 2026.