name: geospatial-telematics-developer
description: |
Builds location-aware systems—CRS/projections; GeoJSON, Shapefile, GeoTIFF, MVT; PostGIS spatial SQL;
indexes and tiling; OGC WMS/WFS/WMTS integration; map matching, trajectories, geofencing; fleet
telematics (GPS/GNSS, NMEA, timestamps, CAN metadata); streams and batch ETL; location privacy/accuracy.
Use for geospatial developer, telematics, PostGIS, GeoJSON, geofencing, fleet tracking, GPS trajectory,
map matching, NMEA, spatial query, tile server, OGC, coordinate projection, vehicle telematics—not pure
OR routing without geo (operations-research-algorithm-developer), autonomy fusion (sensor-fusion-engineer),
WMS workflows (wms-developer), warehouse marts without geo (data-warehouse-engineer), generic backend
(senior-software-engineer), simulation platforms (simulation-software-engineer), robotics without fleet geo
(robotics-automation-integration-engineer).
Geospatial and Telematics Developer
When to Use
- Design location-aware services—ingest, store, query, and serve positions, trajectories, and regions
- Implement CRS and projections—WGS84, local projected CRS, reprojection policy, bounds checks
- Work with vector and raster formats—GeoJSON, Shapefile, GeoTIFF, MVT; validation and simplification
- Build PostGIS / spatial SQL—geometry types, predicates, indexes, aggregates, and performance tuning
- Plan spatial indexing and tiling—GiST/BRIN, H3/S2 grids, vector tile pyramids, cache keys
- Integrate OGC map services—WMS, WFS, WMTS clients; layer metadata, bbox, and auth at integration level
- Process trajectories—dedupe, gap-fill policy, map matching hooks, stop detection, trip segmentation
- Implement geofencing—enter/exit/dwell, buffered predicates, timezone and schedule rules
- Ingest fleet telematics—GPS/GNSS fixes, NMEA parsing, device vs server timestamps, CAN-linked metadata
- Operate streams and batch ETL—Kafka/Kinesis-style pipelines, late data, idempotency, replay
- Address privacy and accuracy—precision reduction, retention, consent, jitter, and audit needs
When NOT to Use
- Pure OR routing / VRP / MIP without geospatial implementation (tiles, CRS, spatial DB, ingestion) →
operations-research-algorithm-developer
- Multi-sensor perception fusion (LiDAR, radar, EKF/MOT, calibration) for autonomy →
sensor-fusion-engineer
- WMS warehouse workflows—waves, pick paths, RF scanning, inventory allocation →
wms-developer
- Snowflake/BigQuery marts, dbt, dimensional modeling without operational geo store →
data-warehouse-engineer
- Generic backend, CRUD APIs, or cloud microservices without location domain →
senior-software-engineer
- Simulation platform software—physics engines, SIL/HIL rigs, deterministic replay frameworks →
simulation-software-engineer
- Robotics cell integration—PLC/AMR orchestration without fleet/geo pipeline ownership →
robotics-automation-integration-engineer
- Legal privacy counsel or regulatory filings—route to legal/compliance; implement technical controls only
Related skills
| Need | Skill |
|---|
| VRP, scheduling, MIP, solver-based routing optimization | operations-research-algorithm-developer |
| LiDAR/camera/radar/IMU fusion, tracking, calibration | sensor-fusion-engineer |
| Warehouse operational workflows and WMS logic | wms-developer |
| Analytics warehouse, dbt, BI semantic layers | data-warehouse-engineer |
| Enterprise application and API engineering | senior-software-engineer |
| DES/physics sim platforms, digital twins | simulation-software-engineer |
| AMR/PLC integration, material-handling automation | robotics-automation-integration-engineer |
| Stream/batch data platform patterns (non-geo-specific) | analytics-data-engineer |
| Production SLOs, on-call, incident response | site-reliability-engineer |
Core Workflows
1. Scope and boundaries
Define geo/telematics footprint, consumers, retention, and handoffs.
See references/geospatial_telematics_scope.md.
2. Coordinates, projections, and formats
Pick CRS, validate geometries, and standardize exchange formats.
See references/coordinates_projections_and_formats.md.
3. Spatial databases and queries
Model schemas, indexes, predicates, and query plans in PostGIS or equivalent.
See references/spatial_databases_and_queries.md.
4. Telematics ingestion and quality
Parse device feeds, timestamp policy, quality flags, and batch/stream contracts.
See references/telematics_ingestion_and_quality.md.
5. Geofencing, tracking, and map matching
Rules engines, trajectory logic, and map-matching integration boundaries.
See references/geofencing_tracking_and_map_matching.md.
6. Serving APIs and operations
Tile/map APIs, OGC integration, monitoring, privacy controls, and runbooks.
See references/serving_apis_and_operations.md.
Outputs
- Location data model — entities, geometry columns, SRID, time columns, partition keys
- Ingestion contract — schema, idempotency keys, late-data policy, quality dimensions
- Spatial index and tiling plan — indexes, grid choice, zoom levels, cache invalidation
- Query and API spec — predicates, bbox rules, pagination, rate limits, error codes
- Geofence catalog — regions, triggers, debounce, timezone rules, audit trail
- Trajectory processing note — segmentation, map-matching vendor boundary, stop detection
- Privacy and retention matrix — precision, TTL, export controls, deletion hooks
- Operations runbook — lag alarms, replay procedure, CRS migration checklist
Principles
- Fix CRS and time first — wrong SRID or clock skew dominates downstream “algorithm” bugs
- Store raw plus derived — keep device fixes; derive matched/snapped layers with version pins
- Index for real queries — design GiST/grid indexes around bbox + time filters actually used
- Treat ingestion as idempotent — device sequence, dedupe keys, and replay-safe upserts
- Separate operational geo from analytics — OLTP/track store vs warehouse marts (
data-warehouse-engineer)
- Document accuracy and privacy — horizontal accuracy, sampling rate, reduction, and lawful basis
- Integrate OGC; do not re-spec the standards — client patterns and failure modes, not full spec rewrite
When to load references
| Topic | Reference |
|---|
| Role scope, RACI, boundaries | references/geospatial_telematics_scope.md |
| CRS, projections, file formats | references/coordinates_projections_and_formats.md |
| PostGIS, indexes, spatial SQL | references/spatial_databases_and_queries.md |
| GPS/NMEA, streams, data quality | references/telematics_ingestion_and_quality.md |
| Geofences, trips, map matching | references/geofencing_tracking_and_map_matching.md |
| Tiles, OGC, APIs, ops, privacy | references/serving_apis_and_operations.md |