Senior Data Scientist - Network Simulation

Relay Tech
London
Workplace: HybridFull timeFunction: Data Science & Machine LearningSkills: ["Communication","Ownership","Problem-solving","Collaboration","Attention to detail"]

Build and maintain modular models of Relay’s delivery network to simulate end-to-end unit economics from first-mile to last-mile. Own financial modeling, forecasting, and simulations, translating finance questions into data science solutions. Work with a ~30-person data/engineer team embedded in the finance squad to enable dynamic pricing, margins, and projections with speed and accuracy.

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Relay Tech
Relay Tech
5 months ago

Senior Data Scientist - Network Simulation

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Last checked: 2 hours agoStatus: Live

Job Summary

Build and maintain modular models of Relay’s delivery network to simulate end-to-end unit economics from first-mile to last-mile. Own financial modeling, forecasting, and simulations, translating finance questions into data science solutions. Work with a ~30-person data/engineer team embedded in the finance squad to enable dynamic pricing, margins, and projections with speed and accuracy.
Location: London
Workplace: Hybrid
Employment Type: Full time
Job Function: Data Science & Machine Learning

Key Responsibilities

  • •Build and maintain a modular collection of models that simulate Relay’s network and end-to-end unit economics.
  • •Translate finance questions into data science problems and provide tools for dynamic exploration of pricing, margins, and projections.
  • •Upgrade and adapt models as new operating models or service types are introduced within the network.
  • •Collaborate with the finance team (Strategic Finance, Commercial Finance, FP&A) and a dedicated finance analyst to align modelling with reporting and visibility.
  • •Own the product roadmap for modelling work, prioritising needs and shipping impactful features.

Pay and Benefits

Equity and Bonus:Equity
Perks:Health InsuranceDentalEquity

Key Requirements

  • •Strong modelling capability; breaks complex problems into components and rethinks assumptions when needed
  • •Fluent in Python and SQL; comfortable with data engineering tasks
  • •Experience with financial modelling, forecasting, or simulation that informs commercial or strategic decisions
  • •Ability to explain models to non-technical partners and communicate uncertainties clearly
  • •Ownership mindset: setting roadmaps, prioritising work, and delivering results
Experience:Logistics
Skills:CommunicationOwnershipProblem-solvingCollaborationAttention to detail
Tech Stack:PythonSQL

Company Brief

Relay Tech
Relay Technologies (relaytech.co) is an API-first, tech-enabled delivery network that optimizes e-commerce deliveries using AI-driven routing, real-time tracking and a distributed courier network to lower costs and emissions for retailers.
Industry: Last Mile Delivery
Company Size: Medium (51 to 250 employees)
Growth: Growth Stage Startup
Valuation: USD 100M to 250M
Funding: Series A
Headquarters: London, United Kingdom
Founded: 2022
WebsiteLinkedIn