ProtagenLabs · Kitwe, Zambia

Juma

Founder & Full-Stack Engineer at ProtagenLabs

I build and ship real products from Kitwe, Zambia. No degree, just deployments.

See my workContact meCV.PDF
Juma Tandanya
About

Self-taught.
Multi-venture.
All shipped.

I'm a self-taught engineer and founder running ProtagenLabs out of Kitwe, Zambia. No degree, no bootcamp. Just years of building, breaking, and shipping things that actually work.

I own products end-to-end: design through deployment. I've architected and built web platforms, serverless cloud infrastructure, and mobile-money payment flows. Right now I'm operating MaterialCrate, building SocialStats, running a content brand, and a hardware resale business. Four things at once is normal.

I'm not a specialist. I'm an operator. Someone who owns the full stack and ships.

Projects

Things I've shipped.

MaterialCrate screenshot

MaterialCrate

Owner

The academic content platform where African students earn from sharing what they know.

Token-based creator economy with mobile money payouts, a custom plagiarism fingerprinting system (SHA-256 + MinHash/LSH), and free/pro/premium subscription tiers via Gumroad.

Next.jsPostgreSQLPrismaSupabaseRailwayVercelGumroadResend
Case study →Live site ↗
Supply Circuit screenshot

Supply Circuit

Client work

A full eCommerce platform on serverless AWS, built for a real Zambian business.

Complete Firebase-to-AWS migration: dual Cognito user pools, DynamoDB, Lambda, API Gateway, S3, SES, and WhatsApp order notifications. Delivered for SupplyCircuit Zambia Limited.

React 18TypeScriptViteDynamoDBCognitoLambdaAPI GatewayAmplify
Case study →Live site ↗
Stack

How I build things.

Frontend

ReactNext.jsTypeScriptViteTailwind CSSReact Three Fiber

Backend

Node.jsExpressPrisma ORMPostgreSQLDynamoDB

Cloud & Infra

AWS CognitoAWS LambdaAPI GatewayS3SESAmplify HostingSecrets ManagerSupabaseRailwayVercelFirebase

Other

Gumroad subscriptionsMobile money integrationContent fingerprintingAI feature integrationResend
Testimonial

Working with Juma on Supply Circuit was exactly what we needed. He understood the business requirements, made smart technical decisions, and shipped a production-ready platform. The AWS migration was smooth and the system has been reliable since day one.

Marvelous Chikombola

SupplyCircuit Zambia Limited

Contact

Let's build something.

Got a project, collab idea, or just want to say hi? My inbox is open.

→itsjumah.tj@gmail.com
GitHubLinkedInX / TwitterInstagramWhatsAppMaterialCrate
DOWNLOAD CV