Lead Data Analyst – Network

ERLPhase Power Technologies Ltd.

Lead Data Analyst ensuring forecasting systems function accurately at Relay. Collaborate closely with data scientists and operational teams to improve forecasting and model performance metrics.

Posted 6/2/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

BigQueryC++SQL

About the role

Key responsibilities & impact

Track forecast accuracy across all Network models: demand forecasts, shift planning forecasts, dimensions model, BPP inclusion models
Surface model drift and performance issues before they impact operations - you're the early warning system
Diagnose forecast errors by client, geography, day of week, and horizon, and quantify the CPP impact
Build dashboards that make model performance transparent to the squad and stakeholders
Set analytical direction for the Network squad: define what metrics matter, where to invest analytical effort
Work with Data Scientists to build the business case for model improvements, whether that's new input signals, data quality fixes, or client-specific treatment
Monitor how capacity matches demand across Sortation, Middle Mile, Last Mile, and track shift release effectiveness
Translate model performance into business impact that stakeholders can act on

Requirements

What you’ll need

You have at least 5 years of experience as a data analyst or similar role
You're fluent in SQL and experienced with dbt/BigQuery
You care about impact more than insight - you measure success by whether forecasts drive better decisions.
You can build and maintain analytical models
You have a passion for forecasting and predictive modelling - you're energised by understanding where predictions hit and where they miss.
You communicate clearly with operations teams and can explain what the data shows without the jargon.
You catch problems before they become crises - you're vigilant about when models start behaving unexpectedly.
You translate technical performance into business impact - CPP, surge costs, wasted capacity.
You've built dashboards that are operationally critical, not just "nice to have".

Benefits

Comp & perks

Relay is an equal-opportunity employer committed to diversity, inclusion, and fostering a workplace where everyone thrives.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

SQLdbtBigQueryanalytical modelsforecastingpredictive modellingdashboard buildingdata quality fixesmodel performance analysiscapacity demand matching

Soft Skills

communicationproblem-solvingvigilanceimpact-driven mindsetstakeholder engagementanalytical direction settingclear explanation of datacollaboration with data scientiststranslating technical performanceproactive issue identification