Hybrid AI Engineer for Production ML & Tools

Pay.UK Limited; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

30 days leave

Employee assistance programme

Cycle to Work

Season ticket loan

Fitness subsidy

Working from home policy

Job summary

Pay.UK is seeking an AI Engineer to apply AI in a high-reliability environment. You will design, build and deploy AI/ML models that support internal tools, workflows and decision making across the organisation.

You will collaborate with engineering, data and business teams to translate requirements into usable AI applications, ensuring performance, monitoring and clear technical documentation throughout the lifecycle.

Qualifications

• Experience designing, building and deploying AI or machine learning solutions for live production use.
• Experience using Python and AI or ML libraries to develop, test and maintain AI solutions.
• Experience preparing datasets, training models and evaluating model performance using structured testing and evaluation methods.
• Experience integrating AI solutions with business applications, APIs or cloud-based services.
• Experience producing technical documentation and explaining implementation choices to both technical and non-technical colleagues.

Responsibilities

• Design and build AI solutions that address defined business and operational needs within Pay.UK.
• Develop, test and deploy machine learning and generative AI models for internal tools, workflows or decision support.
• Prepare and refine datasets for model training, evaluation and ongoing performance monitoring.
• Integrate AI services into existing platforms, applications and engineering workflows.
• Create technical documentation for models, data pipelines, APIs and deployment processes.
• Evaluate model outputs, identify risks or limitations, and improve performance through structured testing.
• Collaborate with engineers, data specialists and business teams to translate requirements into working AI applications.
• Monitor live AI solutions, troubleshoot issues and implement updates to maintain reliability and accuracy.

Skills

Python

AI/ML design

Model evaluation

API integration

Documentation

Tools

Python libraries (TensorFlow, PyTorch)

Cloud services (AWS, GCP, Azure)

Job description

Pay.UK is seeking an AI Engineer to apply AI in a high-reliability environment. You will design, build and deploy AI/ML models that support internal tools, workflows and decision making across the organisation.

You will collaborate with engineering, data and business teams to translate requirements into usable AI applications, ensuring performance, monitoring and clear technical documentation throughout the lifecycle.