Off the streets, Land subdivision in PostGIS - Part 2
Optimizing parallel HTTP request batches
Detecting potentially malicious PHP code using checksums and heuristics on parse trees
Analyzing PostgreSQL logs using pgBadger
Geolocation using multiple services
Redesigning a notification system
Out on the streets, leveraging geographical data - Part 1
Postgres full-text search
Fishing for timezones in a compressed data lake
Mapping country codes to country flag icons
Skill demand on UpWork