caleb@calynx — available for new projects

Software that ships, and keeps working.

I'm Caleb Mweu, a software developer building web and mobile products through Calynx Ltd. Eleven years of writing code that businesses actually rely on.

2013First line of code
11+ yrsBuilding software
1Point of contact, start to finish
NairobiBased, works anywhere

What I build

Calynx takes on the kind of work that needs someone who can own it end to end — from the first conversation to the software running in production.

Web applications

Customer portals, internal tools and dashboards built to handle real traffic and real data, not just a demo.

Mobile apps

iOS and Android apps for businesses that need to reach customers on the device they actually use.

APIs & integrations

Payment gateways, SMS, mobile money and third-party services wired into a system that doesn't fall over.

Product engineering

Working alongside founders and teams to turn an idea or a spec into a shipped, maintained product.

How a project runs

The same process on every engagement, so there are no surprises partway through.

01

Scope

We talk through what you need, what it needs to do, and what "done" looks like — in plain terms, before any code is written.

02

Build

Work happens in short cycles with something to look at early, so direction can be corrected before it's expensive to.

03

Ship

The product goes live, tested and documented, with a clear handover of how it runs.

04

Support

Software needs upkeep after launch. I stay reachable for fixes, changes and the next phase of work.

Tools of the trade

The stack changes per project, but this is what comes up most.

JavaScript / TypeScript React Node.js Python PHP / Laravel PostgreSQL / MySQL REST & GraphQL APIs M-Pesa / Payment integrations AWS Docker

Tell me about the project

The fastest way to start is a message with a short description of what you need — I usually reply within a day.