Alexander Gabriel Hernandez

Senior Data Engineer @ PayMongo | Data Engineer, Software Engineer

Madrid, Community of Madrid, Spain

About

As a Senior Data Engineer at PayMongo since January 2024, my role has involved enhancing data processes and infrastructure, marked by the successful implementation of Datahub and a significant improvement in query performance. With a foundation in Management Information Systems from Ateneo de Manila University, I've honed my expertise in AWS services and Python, contributing to our team's efforts in data wrangling and API integration. My technical proficiency, supported by certifications in Python for Data Science and foundational technical support, complements my experience in optimizing data flows and ensuring our data architecture meets the evolving needs of the business.

Experience

  • PayMongo (4 yrs 11 mos)
    • Senior Data Engineer
      Jan 2024 - Jul 2025 · 1 yr 7 mos

    • Data Engineer
      Sep 2023 - May 2024 · 9 mos

    • Software Engineer
      Nov 2021 - Oct 2023 · 2 yrs

      Utilized DBT to organize and optimize multiple queries, resulting in over 100% improvement in query performance. Utilized Python Scripts to perform data wrangling and preprocessing of complex data Spearheaded the implementation and adoption of Datahub, a platform that empowers teams to understand and standardize technical terms, reducing miscommunication across the company. Integrated and leveraged APIs such as RESTful APIs, and cloud service APIs (e.g., AWS) to enable seamless data retrieval, processing, and interaction with internal systems.

  • Capital Markets and Business Development at The Philippine Stock Exchange, Inc. (PSE)
    Jun 2019 - Jul 2019 · 2 mos

    Researched, documented, and presented about a new product that the Philippine Stock Exchange can utilize to support financial growth for startups in the country.