Heitor Chang

heitorchang@gmail.com • https://heitorchang.github.io/

Professional Experience

Belgingur, LLC., Reykjavik, Iceland (Remote)

Senior Back-End Engineer
Jan. 2024 – present
  • Improved the flexibility of the Weather On Demand Python system by expanding the number of available configuration files.
  • Completed a closest points linear regression model for weather forecasting.
  • Converted scientific Fortran code that models volcanic activity to Python modules that leverage NumPy and NetCDF libraries.

Mediafly, Inc., Chicago, IL (Remote)

Senior Software Engineer, Data and Client Squad
Aug. 2022 – Feb. 2023
  • Extended a Python back-end service handling customer integration with Salesforce's API to allow the creation of new custom objects holding metadata.
  • Improved the Python video call processing pipeline, filtering out unwanted blocks of silence.
  • Corrected multiple occurrences of temporary files not being cleared and other data inconsistencies in the Python pipeline code.

Tempo OK Tecnologia em Meteorologia Ltd., São Paulo, SP

Senior Full-Stack Developer
June 2020 – Aug. 2022
  • Built and administered the public-facing website with Django, including custom user management and authentication with a JWT extension.
  • Built FastAPI endpoints to communicate with a PostgreSQL database using Google Cloud Functions and Cloud Run, leveraging Docker containers and Continuous Deployment.
  • Created a geospatial dashboard containing satellite imagery overlays computed from NASA's scientific data and weather stations' historical data, obtained by accessing their public APIs.

Education

Stanford University, Stanford, CA

M.S. in Materials Science and Engineering
B.S. in Applied Mathematics

Skills