Sandro Barres-hamers

Data Engineer at Priogen Energy

Netherlands

About

Data/Software Engineer with 3+ years in scalable, data-driven systems. Strong in Java, Python, TypeScript, Kafka, AWS, containers, and Terraform. Fast, adaptive, and impact-focused.

Experience

  • Software Engineer at Stealth
    Jun 2026 - Present · 1 mo

  • Data Engineer at Priogen Energy
    Feb 2025 - May 2026 · 1 yr 4 mos

    Architected and owned the company-wide ETL infrastructure — ingesting 200+ data sources to power real-time trading signals across market, weather, and meteorological data. Built on Kafka, Python, AWS Lambda, and Docker. Cut legacy Java pipeline runtimes by up to 80%.

  • Software Engineer at NPO
    Nov 2023 - Jan 2025 · 1 yr 3 mos

    Built and owned the Metadata Services platform - NPO’s central hub for distributing broadcast metadata to 150+ B2B partners using event-driven pipelines (Kafka, AWS Lambda/S3/DynamoDB) and infrastructure-as-code (Terraform). Also stepped in as interim Product Owner to lead a full radio metadata migration. Cut AWS costs by 7% while improving performance.

  • Thesis Researcher at Centrum Wiskunde & Informatica
    Feb 2023 - Nov 2023 · 10 mos

    Completed my thesis internship at CWI within the Human-Centred Data Analytics research line, focusing on Natural Language Processing (NLP) for fake news and misinformation detection. The work was supervised by senior researcher Davide Ceolin, published by Springer, and presented at the MSIDOOM conference at CWI. Contributed to model development, evaluation, and analysis in the context of trustworthy AI and information integrity.

  • Technical Support Engineer at Adyen
    Jul 2022 - Oct 2023 · 1 yr 4 mos

    During my tenure from 2022 to 2023, I served as a key knowledge source for the Adyen platform and APIs, web-stack technologies, and industry-standard integration methods, with a primary focus on Adyen plugins, in-person payments, issuing/acquiring, and webhooks. Specialising in: - E-comm integrations - Magento 2 / Salesforce / Shopware / NetSuite plugins support - Payment analysis - Support for high-level merchants with e-commerce solutions