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Case StudyN°06
Sasco.
A field operations platform for fuel station supervision with GPS check in validation, checklists, and analytics across 100+ stations.
Role
Full-Stack Developer
Category
Dashboards
Year
2026
Status
Live
system.wr-sasco.com© 2026
React✦TypeScript✦Vite✦Express✦MongoDB✦Leaflet✦Recharts✦TanStack Query✦React✦TypeScript✦Vite✦Express✦MongoDB✦Leaflet✦Recharts✦TanStack Query✦
01
Overview
Sasco is a station and supervisor tracking system for field visits across fuel stations. Supervisors check in with GPS geofence validation, complete multi step checklists with photo evidence and digital signatures, while admins track coverage, compliance, and performance analytics.
02
What I Did
- 01Built admin and supervisor dashboards across 100+ stations
- 02Implemented GPS geofence validation so supervisors must be inside each station radius before submitting a visit
- 03Delivered multi step field visits with configurable checklists, photo evidence, and digital signatures
- 04Shipped analytics for station coverage, compliance rates, and supervisor performance
- 05Added Excel export and automated daily reporting for low activity supervisors
03
Stack
ReactTypeScriptViteExpressMongoDBLeafletRechartsTanStack Query
