Evance Ochiel | GIS Developer & Spatial Analyst

// 01 — About

Precision. Innovation. Impact.

I'm Evance Ochiel — a GIS Developer and Spatial Analyst holding a BSc. in Geospatial Information Science with IT (Maseno University). Over 7 years, I've translated complex spatial data into intelligent, production-ready systems used by governments, private firms, and everyday commuters.

Currently a Geospatial Data Management Officer at Kenya's Directorate of Resource Surveys and Remote Sensing, I own the full lifecycle of geospatial projects — from satellite imagery ingestion and GPS field collection to predictive modeling, automation, and interactive dashboards.

On the side, I ship Android apps, integrate REST APIs, manage cloud-hosted spatial databases, and apply machine learning to geospatial challenges — because the best solution is often the one that hasn't been built yet.

Core Technologies

ArcGIS ProQGISArcGIS Online PythonKotlinJavaScript PostgreSQLPostGISSQLite REST APIsFirebaseAndroid SDK Leaflet.jsGoogle Maps SDKERDAS Imagine AutoCADGoogle Earth EngineSPSS MySQLGit & GitHubHTML/CSS

// Experience

7 Years. 3 Sectors.
One Mission.

From government mapping departments to private geospatial engineering firms, and from mapping technician to full-stack app deployment — my career spans the entire geospatial value chain.

Organisations & Roles

Public Service Commission Kenya Current
Geospatial Data Management Officer — DRSRS

NatureSurf Systems Limited 2019–2022
Geospatial Officer

RAMANI Geosystems Limited 2018–2019
GIS Mapping Technician

Geoplan Consultants Limited 2017
Geospatial Attaché

Education

BSc. Geospatial Information Science with IT

Maseno University

// 02 — Capabilities

What I Build

A multidisciplinary engineering toolkit — spanning satellite imagery to mobile apps, databases to AI — built for real-world deployment.

GIS Analysis & Mapping

Full-cycle spatial analysis — buffering, overlay, interpolation, proximity — using ArcGIS Pro, QGIS, ERDAS Imagine, and Google Earth Engine. Professional cartographic output for any scale.

Android App Development

Native Android apps in Kotlin/Java with Maps SDK, GPS integration, offline-first architecture, Firebase backend, and full Play Store deployment — from concept to production.

Web & WebGIS Development

Interactive web mapping with Leaflet.js, Mapbox GL, OpenLayers, and ArcGIS JS API. Full-stack web apps using HTML5, CSS3, JavaScript, and PHP with spatial backends.

Spatial Database Management

PostgreSQL + PostGIS for complex spatial queries, indexing, and geospatial functions. MySQL, SQLite, and Firebase for mobile/web data pipelines. Schema design and performance tuning.

Automation & Data Pipelines

Python-driven geoprocessing scripts, scheduled ETL pipelines, data cleaning workflows, format converters (GeoJSON, Shapefile, GeoPackage), and ArcPy / GDAL automation at scale.

API Integration & Services

REST API design and consumption — Google Maps Platform, OpenStreetMap, GTFS feeds, Firebase, Overpass API, and custom spatial microservices. JSON/GeoJSON data flows.

Spatial Data Visualization

Dynamic dashboards, ArcGIS StoryMaps, Tableau spatial charts, and custom D3.js / Recharts visualizations. Turning raw geospatial data into compelling, decision-ready narratives.

AI & Predictive Geospatial Analytics

Machine learning applied to spatial data — land cover classification, route optimization, predictive urban modeling, and AI-moderated community features. Python ML stack + GEE.

// 03 — Projects

Featured Work

Real products. Real users. Real impact — from smart city transit navigation to field-grade geospatial data collection.

Live on Google Play

KotlinAndroid Maps SDKGTFS FirebaseOpenStreetMap

Ma3 Route Guide

Tired of getting stuck in traffic? Nairobi traffic is unpredictable. Your commute should not be. Ma3 Route Guide now includes a live Trending feed where commuters post real-time traffic alerts: jams, roadworks, and diversions straight from the road. Posts are timestamped and auto-expire in 12 hrs so the feed stays fresh. 272 routes · turn-by-turn navigation · route chat rooms · Free.

Get Ma3 Route Guide on Google Play · #NairobiTraffic #Matatu #Nairobi #Kenya

272 Routes 4,284 Stops Trending (Real-time Traffic) Live Route Chat Stop Navigation

Open on Play Store Enquire

Available Now

AndroidGPS SQLiteGeoJSON FirebaseOffline-First

FieldCollect

A production-grade offline-first field data collection tool built for GIS professionals, researchers, and surveyors. Capture GPS-tagged attributes, photos, and custom forms. Sync to cloud when connectivity returns. Used for household surveys, land assessments, and environmental audits.

Offline-First GPS Tagging Map View Cloud Sync

Download APK v1.0.6 Learn More

// 04 — App Distribution

Download My Apps

Production-grade Android apps built for real-world Kenyan mobility, travel, hosting, and field data workflows. Download from Google Play or get the FieldCollect APK directly while its Play Store listing is prepared.

Tired of getting stuck in traffic? Nairobi traffic is unpredictable. Your commute should not be. The live Trending feed lets commuters post real-time alerts for jams, roadworks, and diversions. Posts are timestamped and auto-expire in 12 hrs so the feed stays fresh. 272 routes · turn-by-turn navigation · route chat rooms · Free.

Platform

Android 8.0+

Status

Live

Price

Free

Download on Google Play

Trending feed for real-time Nairobi traffic updates

Install Steps

Open the Ma3 Route Guide Google Play listing
Tap Install and grant location permissions
Open and allow GPS access on first launch
Search your route or destination and go!

Ready to explore Kenya or turn your extra space into extra income? Kenya BnB is officially live and 100% FREE to use: no hidden fees, no monthly subscriptions, and no strings attached. Hosts can create an account in minutes, list apartments, Diani villas, or upcountry cabins for free, and connect directly with guests via Call or WhatsApp. Guests can create a free account, browse curated stays across Kenya, filter by price in KES, pet-friendliness, and stay type, then book instantly. Built for Kenyans, by Kenyans.

Platform

Android 8.0+

Status

Live ✓

Price

Free

List for Free Advanced Filters Call & WhatsApp

Open on Play Store Enquire

#KenyaBnB #HostForFree #TravelKenya #TembeaKenya #FindYourStay #VisitKenya #ExploreKenya

Offline-first geospatial data collection for field professionals. FieldCollect v1.0.3 captures GPS-tagged records, custom forms, photos, map views, and cloud sync in one Android workflow. The APK is 20.1 MB. It should be available on the Play Store soon, but it can be downloaded here for now.

Platform

Android 7.0+

Status

Live ✓

Size

20.1 MB

Download APK v1.0.6

Note: FieldCollect should be available on the Play Store soon. Until then, download FieldCollect_v1.0.6.apk here.

Install Instructions

Download the APK to your Android device
Open Settings → Security
Enable "Install from Unknown Sources"
Open the downloaded APK and tap Install
Grant location & storage permissions on first launch

// 06 — Testimonials

What People Say

Ochiel delivered our geospatial database system well ahead of schedule. His depth in ArcGIS workflows, PostGIS spatial queries, and Python automation saved our team months of manual work. An exceptional technical talent.

Eng. Maxwell Ngala

Senior Technical Specialist (Energy Advisor)— RTI International

Working with Ochiel at RAMANI was outstanding. Impeccable spatial data accuracy, always meeting client specs, and a genuine problem-solving mindset. His digitization quality set a new bar for the team.

Helen Wawira

Head of Geospatial Solutions — RAMANI Geosystems

Ochiel combines deep GIS expertise with real product engineering skill. The FieldCollect app has transformed how our field teams operate — offline-first, reliable, and intuitive. Few people can do both spatial science and app shipping.

Charles Oguoko

Land Economist — Kenya Electricity Transmission Co.

Building Intelligent
Geospatial Solutions
& Digital Experiences

Precision. Innovation. Impact.

7 Years. 3 Sectors.
One Mission.