Architecting High-Impact Geospatial Solutions
I bridge complex geospatial data systems with scalable software engineering, delivering digital transformation for government, NGOs, and FinTech organizations across Africa and beyond.
Tasks Completed
KISIP II Digital Public Works tasks — building digitization, street view capture, household surveys, and AI-powered data validation across Nairobi's informal settlements.
KES Earned by Youth
Stipends earned by 282 youth workers (50% women, 10% with disabilities) through base pay, quality bonuses, and overtime in three informal settlements.
Buildings Digitized
Geospatial building footprints I helped collect, quality-assure, and contribute to OpenStreetMap — now used by the Nairobi County Government for urban planning.
BTC Transactions
Bitcoin Lightning transactions processed through Afribit's circular economy in Kibera — serving mama mbogas, waste recyclers, and boda-boda riders.
What I've Built
Every project here tells a story — the problem I walked into, the system I designed, and the numbers that came out the other end. Click through for the full breakdown.
From Field Mapper to Systems Architect
5 years of building — from collecting GPS coordinates in Kibera to architecting platforms for the World Bank. Every step taught me something the last one couldn't.
Geospatial Mapping Specialist
Spatial Collective
Started on the ground — field-level mapping in Nairobi's informal settlements using HOTOSM tools. Learned what bad data costs communities when planning decisions depend on it.
ICDL Certification
Zetech University
International Computer Driving License — built the digital literacy foundation that I'd later apply to architecting large-scale data solutions.
GIS Validation Tool Developer
Spatial Collective
Transitioned from field mapping to building the validation tools used by the entire team. Java-based data integrity checks for 47,000+ building footprints.
Independent Software Consultant
Freelance / Remote
Led digital transformation for multiple organizations — migrated legacy WordPress sites to React/Next.js. 65% improvement in Core Web Vitals, 40% increase in user retention.
ALX Software Engineering
ALX Africa (12-month intensive)
Full-stack specialization: C systems programming, Python, JavaScript, DevOps, and software architecture. The rigour changed how I think about system design.
Afribit DevOps Administrator
Afribit Africa (Volunteer)
Set up and maintain the self-hosted BTCPay Server powering Kibera's Bitcoin circular economy. 2,000+ Lightning transactions across 40+ merchants.
Systems Architect
Spatial Collective / World Bank KISIP II
Now I architect and maintain the platform that coordinates 282 youth workers, processes 50K+ daily API requests, and automates stipend payments for the World Bank's Digital Public Works programme.
What I Bring to Your Team
Every skill here has been tested in production — from building government-hosted servers to processing 1.7M tasks weekly. I don't list things I've only used in tutorials.
How I Handle Your Data
Working with government agencies, the World Bank, and financial institutions taught me that data protection isn't a feature — it's a responsibility. Here's how I approach it, on this site and in every system I build.
NDA & DPA Compliance
I've managed servers holding citizen IDs and M-Pesa payment records for the Kenyan government. Some implementation details in my case studies are omitted under NDA. 100% DPA compliance isn't optional — it's the baseline.
Verified Public Data Only
Every metric and claim on this site is sourced from public references: the World Bank blog, spatialcollective.co.ke, and afribit.africa. No internal data, citizen PII, or proprietary systems are exposed here.
Local-Only Processing
The interactive map demos on this site process building footprint data exclusively in your browser. Nothing is transmitted externally. The data itself comes from OpenStreetMap — fully open and public.
Architecture Over Implementation
I focus on showing you the system design, data flow patterns, and measurable outcomes — not internal code, database schemas, or proprietary algorithms. You'll see how I think, not what I can't share.
Transparency note: This portfolio uses publicly available data from the World Bank, Spatial Collective, and OpenStreetMap. Map building footprints are open-source OSM data. Case study metrics reference published reports. No confidential, proprietary, or citizen-identifiable data appears anywhere on this site. If you have questions about my data handling practices, I'm happy to discuss them.
Got a project? I'd love to hear about it.
Whether you need a senior engineer for your team, a geospatial platform for your next initiative, or you just want to talk shop — drop me a message. I respond to every one.