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$
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Walter M
@tecno_walter
Industrial Civil Engineer and Master of Science in Engineering
Chile
Spanish, English
About me
I build systems that pull decisions out of images and data. MSc in
Engineering, highest distinction.
Photo restoration: old, torn and faded photographs, using restoration
models plus manual correction so the face still looks like the person you
remember.
Computer vision: object detection and tracking from video (YOLOv8, mAP 0.716).
Quantitative development: four trading indicators published on ClickAlgo
for cTrader, in C#/.NET.
Data: Python, SQL, ETL on BigQuery, Power BI dashboards.
Tell me what you have and what you need. I'll say honestly if I'm the
right fit.
Skills
Walter M
Offline •
Average response time: 1 hour
See my services
Photo Restoration
I will restore and colorize your old family photos
Portfolio
Work experience
Analyst Trainee
PwC • Full-time
Aug 2022 - Nov 2022 • 3 mos
Supported ETL pipelines and data integration on Google Cloud (Data Fusion, BigQuery, Cloud Storage) using Python and REST APIs. Supported BigQuery processes and schema validation with Strategy teams/stakeholders, ensuring data quality and consistency. Optimized historical loads of inventory spreadsheets (hundreds of thousands of records), achieving processing times of < 30 seconds per file. Supported the implementation of quality monitoring to detect dirty/misimputed data and enable near real-time visualizations.
