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Own end-to-end productionisation of ML models, build and mature the ML platform and serving architecture, integrate system testing and monitoring into training pipelines, automate releases and drift detection, and measure real-world impact alongside data scientists.

Design, build, and productionise large-scale optimisation models and bespoke solvers for last-mile scheduling, assignment and pricing. Translate operational requirements into mathematical programming and heuristic solutions, benchmark and monitor performance, and work cross-functionally with engineering and analytics to deploy and evolve automated decision systems.

The Strategic Account Manager will drive client growth and profitability through strategic planning, client engagement, operational performance, and data integration.

The Senior Data Analyst will own analytics for finance, create dashboards, ensure data quality, and communicate insights to support decision-making.

Manage client network performance by improving operational metrics across strategic accounts. Develop improvement plans, track progress, and communicate updates to clients.

As Programme Manager, you'll coordinate the delivery programme for the Network squad, manage dependencies, track commitments, and support the squad lead to ensure operational success in a technical environment.

The Senior Data Scientist will build and maintain models for simulating the logistics network, addressing operational queries from finance teams about costs and efficiencies.

Lead full-cycle new business sales with major UK retailers and brands, originate and negotiate platform and marketplace partnerships, coordinate integrations with engineers, represent Relay at industry events, and help shape commercial strategy and long-term partnership playbooks.

Own and build the integrated demand-forecasting models (D0–D30) that drive sorting, routing and network planning. Lead the hardest forecasting problems: long-horizon model generation, inbound international volume, parcel size/weight prediction. Define methodology, validation standards, model interfaces, and production quality while collaborating with ML engineers, analysts and operations to measure model impact on cost per parcel.

As a Senior Analytics Engineer, you'll design core data models, build AI system foundations, and ensure data quality while collaborating across teams.