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Principal Machine Learning Engineer

GBR-London-5 Canada Square, GB💼 Full-time🗓 2026-08-19 → 2026-09-26

Core

Architect and lead the full lifecycle of ML systems for a new matching platform, focusing on scalable data pipelines, model governance, explainability, and MLOps automation.

Role type

Principal Machine Learning Engineer (MLOps, Model Governance, Explainability)

Builds

Production ML systems, data pipelines, inference runtimes, and governance frameworks for a matching platform

Domain

Financial markets infrastructure, matching platforms, enterprise ML

Deliverable

production ML models | infrastructure

Required skills

AWS SageMaker, Python, PyTorch, TensorFlow, XGBoost, MLOps automation, model governance, explainability (SHAP), low-latency inference, drift detection, CI/CD for ML

Preferred skills

Lakehouse architecture, feature stores, cross-account IAM patterns, shadow-mode testing, A/B testing strategies

Technologies

AWS SageMaker, PyTorch, TensorFlow, XGBoost, SHAP

Responsibilities

Define end-to-end ML architecture including data pipelines and inference runtimes; Lead adoption of MLOps patterns and AWS SageMaker capabilities; Architect scalable feature pipelines within Lakehouse environments; Design ranking, scoring, and similarity models; Establish explainability standards and regulator-ready reason codes; Architect automated training, deployment, and retraining pipelines; Design low-latency, high-throughput inference services; Define observability standards for feature and concept drift; Enforce ML-specific security standards and governance frameworks; Lead validation strategies using golden datasets and benchmark suites.

Seniority

Principal, hands-on IC with strategic leadership

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