Senior Machine Learning Engineer

Harnham · London, London

Senior Machine Learning Engineer at Harnham, based in London, London. This is a permanent role with hybrid working.

Salary
Competitive
Location
London, London · Hybrid
Contract
Permanent
Posted
6 hours ago
Closes
19 Nov 2026
Sector
Data Analyst

Reference https://www.harnham.com/job/e1aeb1da-8723-4ba1-d23d-08d5948a7341-senior-machine-

About the role

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Senior Machine Learning Engineer

London (Hybrid)

This is an opportunity to join a newly established Machine Learning Engineering team building a greenfield AI product within a highly successful global technology business. You’ll have significant ownership from day one, helping shape the architecture, ML systems, and product direction of a platform designed to solve complex, high-value challenges at scale.

The Company

They are a global technology organisation operating across multiple international markets, processing billions of customer interactions and transactions each year. Backed by strong executive sponsorship and substantial investment, they are developing a new AI-powered platform focused on operational optimisation and decision intelligence.

The Role

As a Senior Machine Learning Engineer, you will play a key role in designing, building, and operating production-grade ML systems from the ground up.

Responsibilities include:

  • Building and owning end-to-end machine learning solutions, from data ingestion through to deployment and monitoring
  • Developing scalable data pipelines that process large volumes of real-time and batch data
  • Training, deploying, and maintaining machine learning models in production environments
  • Working with Databricks, AWS, Python, Kafka, and modern MLOps tooling
  • Leveraging machine learning, LLMs, and multimodal AI techniques across structured and unstructured data sources
  • Collaborating with engineering, product, and business stakeholders to deliver impactful solutions
  • Contributing to system architecture, platform design, and technical best practices
  • Driving measurable improvements through AI-powered decisioning and automation

Your Skills & Experience

  • Strong commercial experience as a Machine Learning Engineer, MLOps Engineer, or in a similar applied ML role
  • Proven experience building and deploying machine learning systems into production
  • Experience designing and maintaining scalable data pipelines and ML infrastructure
  • Strong Python engineering skills
  • Experience with Databricks and cloud platforms such as AWS
  • Knowledge of production monitoring, model performance management, and MLOps best practices
  • Ability to operate autonomously and take ownership of projects from concept through delivery
  • Experience working with large-scale data environments
  • Exposure to fraud, payments, financial services, or risk-related machine learning use cases would be advantageous

To Apply for this Job Click Here

Reference: https://www.harnham.com/job/e1aeb1da-8723-4ba1-d23d-08d5948a7341-senior-machine- · Posted 6 hours ago · Closes 19 Nov 2026 · Listed via Harnham

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