About
Software engineer in Nairobi.
I'm Yussuf Hersi. I build infrastructure tools in Go and ship full-stack SaaS for African businesses.
The main thing right now is PesaStream — an M-Pesa-first point-of-sale for SMEs — and OpenClaw, an AI agent layer that handles customer comms and ad ops through WhatsApp.
On the open-source side I built NextDeploy, a Go CLI that deploys Next.js apps without Terraform or CDK. I also maintain Golangcodes and write under Hersi.
What I work on
Infrastructure and devops
Go CLIs, AWS provisioning, deployment tooling.
SaaS products
B2B and B2C — payments, business operating tools.
Backend systems
Go and TypeScript services, API design, Drizzle and Postgres.
Practical AI
Approval-gated agents over WhatsApp. Customer comms, content, approvals.
Timeline
Shipping OpenClaw
Autonomous AI agent layer for PesaStream — customer comms, social, ad ops, all approval-gated through WhatsApp.
Founded PesaStream
M-Pesa-first point-of-sale for African SMEs. Admin dashboards, payment rails via Paystack and M-Pesa.
Open source + client work
Shipped NextDeploy (Go CLI for AWS), Golangcodes, and client projects like ReadyMinute.
Software engineer at Mursal Technologies
Backend systems and developer tools. Distributed systems, scalable services.
Stack