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Thomas FillonTF

Thomas Fillon

Data Engineer & Full-stack (Python / Node / React)

€800/day
Paris, FR
8-15 years

Average response time: 1 hour

About Thomas

I’m a versatile software and data engineer with over 10 years of experience in data and software engineering, team leadership, and product development. I specialize in building and deploying scalable solutions – from AI/ML microservices and data pipelines to full-stack applications. I enjoy solving problems to find efficient, scalable solutions in a collaborative environment and have worked in both B2B and B2C startups.

Before working in Tech, I was a Strategy Consultant for 5 years and focused on crafting data-driven strategies and roadmaps for leading Pharma and CPG companies.

Feel free to reach out to discuss your needs and how I could support your team.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Portuguese

    Conversational

Can work on-site
Paris (up to 15km), Le Mans (up to 10km)

Experience

  • Mindmesh (YC S21)
    CTO & Senior Software Engineer
    June 2022 - October 2024 (2 years and 4 months)
    Paris, France
    • Designed and built Fivegem, an LLM-based social network to help users track, review and share their favourite cultural experiences
    • Reinforced the infrastructure security to comply with a Google-led penetration test, migrated to serverless (AWS) and set up a staging environment using infrastructure-as-code (Pulumi)
    • Continuously improved Mindmesh web and desktop apps, working as full stack developer (NodeJS, React, Typescript, Electron) with a strong autonomy on Ux/UI
    • Developed an AI-based Insights Platform for 8 pilot clients, extracting key user insights from support tickets using Natural Language Processing (NLP)
    Amazon Web Services Pulumi LLM UX Data Engineering Node.js Typescript
  • majelan
    Chief Technology Officer
    November 2018 - January 2022 (3 years and 2 months)
    Paris, France
    • Led and coordinated Frontend, Backend and Data teams (10+ people) to continuously improve majelan apps (iOS, Android, Web), focusing on first time experience and retention
    • Developed and put into production advanced AI/ML Python-based microservices (semantic search engine, recommendation engine, homepage feed algorithms)
    • Collaborated with other teams (Product, Marketing, Content) to provide them with the right analytics tools to improve their daily operations and helped identify insights
    Python NLP Management d'équipe Data Engineer Amazon Web Services Data visualisation Analyse de données
  • Monitor Deloitte (ex Monitor Group)
    Strategy Consulting Manager
    CONSULTING AND AUDITS
    September 2013 - October 2018 (5 years and 1 month)
    Paris, France
    • Led a cross-functional pricing transformation program for a B2B industrial good manufacturer, solving for key inefficiencies in pricing practices, identifying solutions and rolling out a new custom pricing tool to support Sales teams
    • Defined most attractive growth opportunities for one of the Top 3 Consumer Health companies; built 5-year business plans and facilitated 15+ global and local cross-functional workshops
    • Built several physician and consumer segmentations in pharma and CPG industries (including designing the qual + quant research phases)

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Education

  • Master of Science
    Columbia University in the City of New York
    2013
    Master of Science (M.Sc.), Management Science and Engineering
  • Diplôme d'ingénieur
    Ecole Centrale Paris
    2013
    Ingénieur Centralien

Skill set

Categories