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# Senior Lead Machine Learning Engineer

- **Company:** London Stock Exchange Group
- **Location:** Nottingham, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Amazon Web Services, Audit Trail, Continuous Integration, Distributed Computing Environment, Machine Learning, Tensorflow, Azure Machine Learning, Software Deployment, Strategies of Testing, Enterprise Data Management, Feature Store, Performance Testing, Feature Engineering, Data Ingestion, Pytorch, Delivery Pipeline, SHAP (Shapley Additive Explanations), Deep Learning, Information Technology, Low Latency, Xgboost, Machine Learning Operations, Drift Detection, Model Registry, Data Pipelines
- **Published:** October 1, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=057559e0eab7f92c

## About the Role

* Demonstrable success designing and delivering enterprise-scale ML platforms and products (ideally using AWS SageMaker).
 * Proven experience delivering ML solutions from data ingestion and feature engineering through to production deployment, monitoring, and continuous improvement.
 * Experience building reliable, low-latency inference services and operating ML workloads at scale.
 * Proven experience solving scaling, reliability, and operational challenges for enterprise ML systems.

Technical Leadership & Architecture

 * Defining end-to-end ML architectures spanning data pipelines, feature engineering, model training, deployment, inference, monitoring, and telemetry.
 * Establishing engineering standards and operational excellence.
 * Implementing feature stores, Lakehouse architectures, and enterprise data quality frameworks.
 * Coaching engineers, reviewing designs, and driving technical direction.

MLOps, Deployment & Operations

 * Deep hands-on experience with SageMaker Pipelines, Training, Processing, Model Registry, Endpoints, Monitoring, and deployment workflows.
 * CI/CD, infrastructure as code, model lifecycle management, and automated retraining.
 * Observability, drift detection, experimentation, and performance engineering.
 * Multi-account AWS deployments and cross-account ML platforms.

Model Development, Governance & Explainability

 * Deep experience applying a wide range of machine learning techniques to real-world business problems, including using models such as XGBoost and deep learning approaches using frameworks such as PyTorch or TensorFlow, taking solutions from experimentation through to production deployment and operation.
 * Strong knowledge of model governance, explainability, traceability, auditability, SHAP, Model Cards, and model documentation practices.
 * Experience establishing governance frameworks that ensure models are explainable, reproducible, and compliant with enterprise standards.

Testing, Validation & Performance Engineering

 * Lead validation strategies using golden datasets, behavioural tests, and benchmark suites.
 * Architect performance testing for latency-sensitive inference paths and model hot paths.
 * Establish standards for A/B testing, shadow deployments, canary rollouts, and controlled experiments.

Nice to Have

 * Background in ranking, search relevance, entity matching, or similarity modelling.
 * Experience in KYC, Sanctions Screening or Compliance domains.
 * Knowledge of distributed training, GPU/accelerator optimisation, and scaling strategies.
 * Bachelors in a STEM subject, e.g. mathematics, physics, engineering, computer science, or adjacent degrees.
 * Masters or PhD or equivalent experience in STEM.

## Description

We're looking for a Senior Lead ML Engineer with a proven track record of delivering successful, production-scale machine learning solutions (ideally on AWS SageMaker) .

You will provide technical leadership across ML lifecycle, including defining architecture, engineering standards, MLOps practices, and governance frameworks for a large-scale matching platform. This is a hands-on lead role requiring recent expertise in building, deploying, monitoring, and operating ML systems in production.