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XPO

LTL freight transport and logistics services

Applied AI Scientist - Hybrid

Applied Machine LearningUpdated on Nov 14
Full-timeBoston, MA, USA

About the Job

Requirements

  • A bachelor's degree or equivalent related work or military experience.
  • One year of experience designing evaluation harnesses or benchmarks to rigorously assess model or agent performance against existing baselines.
  • Hands-on experience building applied AI systems, including agent-based or agentic systems, experimentation frameworks, or applying large language model-based or foundation model architectures to time-series forecasting problems.
  • Proficiency in Python and modern machine learning/artificial intelligence frameworks and platforms such as PyTorch and Hugging Face.
  • Ability to explain AI system behavior and tradeoffs to technical and business stakeholders and collaborate closely with optimization/operations research scientists on meaningful model improvements.

Responsibilities

  • Design and build an agentic experimentation layer over optimization models developed by the team's optimization and data scientists, including proposing variants, running evaluations, and surfacing promising results.
  • Build evaluation harnesses that automatically benchmark model and agent performance against existing baselines before promotion to production.
  • Implement operational safeguards for autonomous experimentation systems, such as automated regression checks, compute and cost limits, and human-in-the-loop gates before production promotion.
  • Evaluate and integrate modern large language model-based and foundation model architectures, such as Chronos-style time-series models, for ETA prediction and demand forecasting for pickup prediction.
  • Partner with the team's optimization and operations research scientists to understand model internals, solver behavior, and meaningful improvements for pickup and delivery use cases.
  • Partner with machine learning engineers on infrastructure needed to run automated experimentation and evaluation at scale.
  • Communicate technical approaches and tradeoffs to technical and business audiences.
  • Stay current on advances in agentic systems, time-series foundation models, and applied generative AI to guide adoption.

Desired Qualifications

  • A bachelor's degree in Computer Science, AI, Data Science, Engineering, or a related field, or equivalent related work or military experience.
  • A master's degree or PhD in Computer Science, AI, Machine Learning, Statistics, or a related field.
  • Two or more years of experience building agentic systems for production use cases and/or research and development applications.
  • Experience designing operational safeguards for agent-based systems, such as automated checks against regressions, runaway compute, or unvalidated models reaching production.
  • Practical experience applying time-series or tabular foundation models, such as Chronos or similar models, to forecasting problems such as ETA prediction or demand forecasting.
  • Practical experience with foundation model fine-tuning or post-training techniques.
  • Practical experience applying reinforcement learning, such as RLHF or reinforcement learning for agent behavior and decision-making.
  • Experience building retrieval-augmented generation systems.
  • Experience applying agentic or applied AI techniques to logistics, transportation, or operations research domains.

About the Company

XPO

LTL freight transport and logistics services

Generate a concise, plain-language company summary for XPO focused on what it does, how its service works, how it differs from competitors, and its goal.

Company size
10,001+
Company stage
IPO
Headquarters
Greenwich, CT
Founded
2011

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