Alexis Thomas

§ Résumé / CV · Updated Oct 2026

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Alexis Thomas

Applied Scientist II at Amazon. Applied scientist with expertise in statistical modeling, time series forecasting, software engineering and cloud architecture.

Location
London, United Kingdom

01 Experience

Amazon

4 yrs 8 mos

  1. – Present London, UK

    Applied Scientist II

    • Built a long-term demand forecasting system for a 3-year planning horizon, combining optimization algorithms with statistical modeling to satisfy multiple business constraints across 10 marketplaces and 31 countries, reaching 99.7% constraint satisfaction.
    • Developed a short-term granular forecasting model for 2-month operational horizons, using hierarchical neural networks and statistical time series models to predict demand at zip-code level with an average WAPE of about 3%.
    • Led a model evaluation programme across statistical, machine learning and time series foundation models, and designed adaptive forecasting strategies that adjust automatically to different volatility regimes and market conditions.
    • Python
    • Hierarchical forecasting
    • Neural networks
    • Optimization
    • Foundation models

  2. – Paris, France

    Software Development Engineer II

    • Owned architecture, development and engineering standards for a science team optimizing the Amazon delivery network in Europe.
    • Engineered long-term demand forecasting pipelines with machine learning and statistical models at granular levels.
    • Implemented CI/CD pipelines with containerization to deploy operational research models on scalable serverless architectures.
    • Python
    • Java
    • ECS / Fargate
    • Lambda
    • SageMaker
    • Docker
    • Infrastructure as code

  3. – Paris, France

    Software Development Engineer

    • Built a platform for one-click execution of operational research workflows, scaling cost-effectively to thousands of concurrent executions with no pre-provisioned servers.
    • Delivered input validation, sanitization and infrastructure-as-code tooling that cut the time to put models in production and made them easier to maintain.
    • Built a data visualization platform used by hundreds of internal users, with automated reporting, data pipelines and big data processing.
    • Python
    • Java
    • React
    • PostgreSQL
    • Glue
    • Redshift
    • S3
    • RDS
    • DynamoDB

BMW Group France

Internship · 6 mos

  1. – Paris, France

    Finance Project Manager

    • Worked with project managers to frame projects and track them to completion.
    • Produced financial and staffing estimates and identified risks and opportunities across the BMW France project portfolio.

Amazon Web Services

Internship · 7 mos

  1. – Dublin, Ireland

    Software Development Engineer Intern

    • Built a new service that lets customers adjust internal tool configurations in real time.
    • Owned the project end to end: scoping, design, implementation and testing.
    • Java and AWS on the backend, React on the frontend.
    • Java
    • AWS
    • React

02 Education

  • 2018 – 2022 Paris, France

    Mines Paris – PSL

    Diplôme d'ingénieur civil des Mines (Master's degree), Mathematics & Computer Science

    One of France's top three engineering schools. Advanced coursework in mathematics, machine learning and computer science.

  • 2016 – 2018 Paris, France

    Lycée Saint-Louis

    Classes préparatoires aux grandes écoles (CPGE)

    Two-year intensive programme preparing the national competitive exams for France's engineering schools.

03 Skills

  • Forecasting & ML

    • Time series forecasting
    • Hierarchical forecasting
    • Neural networks
    • Foundation models for time series
    • Statistical modeling
    • Optimization
    • Model evaluation

  • AI engineering

    • LLM applications
    • Amazon Bedrock
    • Embeddings & semantic search

  • Cloud & infrastructure

    • AWS (Lambda, ECS/Fargate, SageMaker, Glue, Redshift, DynamoDB, S3, CloudFront)
    • AWS CDK
    • Docker
    • CI/CD pipelines
    • Serverless architecture
    • Observability

  • Languages & frameworks

    • Python
    • TypeScript
    • Java
    • SQL
    • React
    • React Native / Expo
    • Next.js
    • Spark

  • Languages

    • French (native)
    • English (full professional)
    • German (limited working)

04 Publications, awards & certifications

05 Side projects

  • 2026 – present

    Prismo · Live on iOS & Android

    An AI learning journal that turns what you read, watch and hear into organized notes and spaced-repetition quizzes.

  • 2023 – present

    Giftruly · Live on web, iOS & Android

    An AI gift concierge: describe the person in a sentence and get a shortlist of ideas, each with a reason it fits.

  • 2024 – present

    Aura · Live on the App Store

    A private mood journal with an AI companion: check in with a tap, and get a gentle note back.

  • Interests

    Singing, CrossFit, Gaming, Side projects