Steven Postmus

Senior Machine Learning Engineer at Albert Heijn

Amsterdam, North Holland, Netherlands

About

I’m a Machine Learning Engineer with a passion to use the latest ML and cloud technologies to solve complex business problems. I have a MSc degree in Business Analytics, obtained at the VU University Amsterdam. Currently working as Senior Machine Learning Engineer at Albert Heijn.

Experience

  • Senior Machine Learning Engineer at Albert Heijn
    Jul 2025 - Present · 1 yr 1 mo

    - Building a distributed ML-powered assortment optimization API that runs product ranking models for more than 1000 stores with auto-scaling workers on Kubernetes - Productionized a promotional demand forecasting REST API deployed on Kubernetes, delivering real-time sales predictions and KPI calculations for retail promotional planning at scale

  • Xomnia (Full-time · 3 yrs)
    • Senior Machine Learning Engineer
      Aug 2024 - Jul 2025 · 1 yr

      Xomnia is a leading AI consulting company in the Netherlands. Here, I built and productionized scalable machine learning solutions for clients. My assignments included VodafoneZiggo and Rabobank

    • Machine Learning Engineer
      Aug 2022 - Jul 2024 · 2 yrs

  • Senior Machine Learning Engineer (via Xomnia) at Rabobank
    Jul 2023 - Jul 2025 · 2 yrs 1 mo

    - Part of Gen!Lab, an innovative greenfield project that develops scalable GenAI solutions available for all employees in the bank - Built a fully Spark-native batch workflow in Databricks that processes millions of transactions every day

  • Machine Learning Engineer (via Xomnia) at VodafoneZiggo
    Aug 2022 - Jul 2023 · 1 yr

    - Set-up a Mediabox Healthcheck Model that determines the health of each mediabox every hour. For this, robust and scalable data pipelines were set up that runs every hour, processing millions of rows of data.

  • Machine Learning Engineer at Data Science Lab.
    Feb 2020 - Jul 2022 · 2 yrs 6 mos

    Data Science Lab is a full-stack data science and strategy consultancy that helps clients to realise their data-driven ambitions. My clients included Schiphol, PostNL, Olympia, Avinty and Zorginstituut.