Migrations & Modernization

• Improved geographical map application performance by 10x through strategic database transition from MSSQL to PostgreSQL, optimizing processing and data security.
• Implemented a catalogue‑driven deep‑merge for stored JSON preferences, preventing missing‑key crashes as the schema evolves.
• Kept the schema honest across 1,022 migrations with a CI gate that builds the database both ways — a fresh install, and an install plus every migration — and fails when the two disagree.
• Moved every user‑facing string out of Python into a content tree of 874 files across three languages, after finding dead translations nobody could see were dead and a check silently grading a third of the achievements.

This work is part of what we offer as Database Migration & Modernization, Backend & API Development, Data Governance & Quality, Database Administration (DBA), Database Design & Modeling, Database Performance Tuning, DevOps & CI/CD Automation and GIS & Geospatial Solutions.

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