Dar es Salaam port (UTC+3). The systems I build serve the trade that moves through here.
Ministries and enterprises hire me when a system must survive 3G, feature phones and a government audit, and still ship on schedule.
12+ delivered projects · 5+ years in production · clients on three continents
Ministry of Blue Economy · Tanzania Posts · NCC · TTCL · ZAMACE · Paperless Africa
NCC is Tanzania's National Construction Council. Some government engagements were delivered as a sub-contracted partner.
Ministry of Blue Economy and Fisheries, Zanzibar · GovTech / Blue Economy
A map-native management information system for Zanzibar's Ministry of Blue Economy and Fisheries, funded under IFAD's USD 58.85M Agriculture and Fisheries Development Programme. Built solo in four weeks and now in real use, with three post-launch change cycles coming from ministry staff working in the system.
20+ / 40+ Development partners / NGOs tracked in one system
National Construction Council, Tanzania · GovTech / Construction
65% Reduction in manual calculation time
Tanzania Posts Corporation / Ministry of ICT · E-commerce / GovTech
Live Marketplace in production at kipepeoshop.co.tz
ZAMACE (Zambia Agricultural Commodity Exchange) · Fintech / Agritech
$1M+ Commodity transactions handled
Delivered through Handisi Digital Solutions Limited
End-to-end builds: web platforms, APIs, USSD gateways (dial-code menus that run on any phone), offline-first PWAs and multi-tenant SaaS. I write the code and hand over something your team can run.
From $5,000, fixed price
See scope & rates →Through Jenga Tech Consulting
Architecture reviews, technology selection, ERP planning and technical due diligence. An engineer's judgment before you spend, with no vendor affiliations behind the advice.
From $2,000/month, retainer
See scope & rates →Through Jenga Tech Consulting
Delivery management for complex, multi-stakeholder programmes, including donor-funded government work. I manage timelines, vendors and expectations so the thing ships.
From $3,000/month, time & materials
See scope & rates →Workshops that map stakeholders, constraints and success metrics before any code.
A reference architecture, risk register and delivery plan that fit your stack and compliance obligations.
Short sprints with demoable milestones. Working software every week, not status reports.
Production handover with runbooks, monitoring and a defined hypercare window.
Who you'd be working with
I'm Herman Kapange, a senior software engineer and technology consultant in Dar es Salaam. For 5+ years I've built and managed fintech, agritech and government platforms across Tanzania, Zambia and the Caribbean, working through my two registered companies, Jenga Tech Consulting and Handisi Digital Solutions Limited.
Remote collaboration
Dar es Salaam (UTC+3): full working-day overlap with Europe and the Gulf, mornings with the US East Coast. Written reply within 24 hours on business days.
Engineering · 3 min read
Two-dimensional tenant isolation, a single $7 VPS and a ~$11/month total for a production platform with CI/CD, WAF, backups and error tracking.
Industry · 2 min read
The thin-gateway pattern behind two production USSD systems: session state in Redis, menus in 160 characters, one backend serving every channel.
Engineering · 3 min read
The local database is the data layer, not a cache. Patterns from production systems in East and Southern Africa that keep working when the network doesn't.
Tell me what you're trying to ship. You'll get an honest read on getting there.