Work
Real businesses, real systems.
Two kinds of work: ongoing partnerships where I’m the fractional CTO, and discrete projects I designed and built. Every one is a long-term system, not a one-time job.
CTO partnerships
Ongoing fractional CTO relationships, on retainer.

Mabili Skills
Mabili sources, develops and maps digital skills, helping international organisations build verified, SFIA-aligned remote teams.
Read about the partnership with Mabili Skills
Growth Predictor
Growth Predictor’s technology measures a company’s capacity to grow, predicting its future revenue and growth rate for investors, lenders and exchanges.
Read about the partnership with Growth Predictor

Nicole Barlow
Nicole Barlow is an independent South African journalist and podcaster, publishing investigative articles, videos, the NicoleB Show and books.
Read about the partnership with Nicole Barlow
Project case studies
Projects I designed and built, written up in full.
Food safety & compliance
Accordium
Real-time food safety compliance platform. IoT sensor nodes send temperature data over LoRa to an in-store hub, feeding a live compliance dashboard with alerting and audit-ready reporting.
Built with: Python · Next.js · IoT · R638
- Regulatory frameworks
- 8
- Industry verticals
- 4
- User role levels
- 3
Live sites
Open any of them here, on desktop or mobile.
More live sites
Want to be next?
I take on a small number of new clients each year. Tell me what you’re building.
1 hour · R650, credited if you go ahead within 60 days · remote or in person, same price
or email henry@erzo.co.zaSouth African time (SAST, UTC+2). I reply to every message myself, within 24 hours.























