WhatsApp Cyril
SENIOR FULL STACK DEVELOPER & DESIGN TECHNOLOGIST NAIROBI, KE Β· WORLDWIDE BUILDS
Cyril Musila
⚑ Next.js 14 SSR
πŸ’³ Daraja M-Pesa STK
πŸͺ Cloud Retail POS
πŸš€ 99+ PageSpeed

Hi, I'm Cyril. I design & engineer
high-converting e-commerce.|

Web applications, custom SaaS platforms, and high-converting e-commerce with automated M-Pesa & Stripe checkout — built in Nairobi, trusted across Africa & worldwide. Explore my story →

8+ Yrs
Building in Production
150+
Shipped Client Builds
4.9β˜…
63+ Verified Reviews
0.8s
Sub-Second Speed (LCP)
Trusted by Leading Enterprises & Fast-Growing Brands in East Africa
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What I do best

Eight years of full-stack engineering, custom UI/UX design, and payment gateway integration distilled into core capabilities.

πŸ’»
Sub-Second Latency

Full Stack Web Applications

End-to-end web apps with React, Next.js 14, and Node.js. Blazing frontends backed by resilient relational databases and secure JWT APIs.

Next.js 14 TypeScript Node.js PostgreSQL
Inspect architecture β†’
πŸ’³
100% Callback Match

Daraja M-Pesa & FinTech

Safaricom Daraja API STK Push, Paybill C2B validation, and automated B2C disbursements with zero dropped transactions.

STK Push C2B Webhooks B2C Payouts Stripe
View fintech solutions β†’
πŸ›οΈ
High-Converting

E-commerce & Custom Checkout

WooCommerce, Shopify, and bespoke stores engineered for maximum checkout conversion, ERP inventory sync, and speed.

WooCommerce Shopify Custom Checkout
Explore e-commerce β†’
🌐
Zero Bloat

Custom WordPress & Themes

Bespoke WordPress architecture without heavy page-builder bloat. Redis caching, blazing speed, and security hardening.

Theme Dev Plugin API PageSpeed 99
View WordPress builds β†’
🎨
Figma Tokens

UI/UX Design Systems

Wireframes, interactive prototypes, and production Figma design tokens that bridge the gap between design and clean code.

Figma Design Tokens Prototyping
See design workflow β†’
πŸ—„οΈ
ACID Compliant

Databases & REST/GraphQL APIs

Database schema design, indexing, third-party API integrations, and JWT authentication pipelines engineered for scale.

PostgreSQL GraphQL Redis
Inspect API stack β†’

Direct payment gateway integration

Whether your audience is in Kenya, East Africa, or global — I integrate automated, instant payment checkout flows with real-time webhooks.

M
M-Pesa Daraja STK Push & C2B Paybill
S
Stripe Checkout Global Cards & Apple Pay
P
PayPal International Wallet
F
Flutterwave Pan-African Rails
mpesa-stk-push.ts ● 200 OK
const stkPush = await daraja.stkPush({
  BusinessShortCode: "174379",
  Amount: 2500,
  PhoneNumber: "254723378788",
  CallBackURL: "https://api.cyril.ke/v1/mpesa-callback",
  AccountReference: "CYRIL-INV-2026",
  TransactionDesc: "Web Architecture Deposit"
});
// Client receives instant PIN prompt on mobile handset
Live Test Sandbox

Selected work & case studies

A few client sites, platforms, and tools built over eight years. Click any card to view deliverables and client impact.

Kenya Highlands Seminary Education · Web App ⚑ 0.9s LCP · 2.4x Admissions

Kenya Highlands Seminary

Digital student admissions review pipeline and automated Daraja M-Pesa fee reconciliation for a 100+ year old institution.

MedMarket Kenya Healthcare Β· E-commerce πŸ’° 15k+ M-Pesa Orders

MedMarket Kenya

Bulk clinic pharmaceutical ordering portal with tiered wholesale pricing, prescription licensing, and ERP synchronization.

Regal Scope Freight Logistics Β· Web App πŸ—ΊοΈ Live GPS Tracking

Regal Scope Freight

Real-time East African shipping tracker, clearance repository, and instant shipping quotation engine for regional cargo.

Pomper Adventures Tourism Β· Booking πŸ“ˆ +340% Bookings

Pomper Adventures & Safaris

Multi-day safari tour booking engine featuring interactive custom itinerary builders and Stripe global deposits.

Smart Solutions Properties Real Estate · Web 🏑 Virtual 3D Tours

Smart Solutions Properties

Residential property portal with virtual tour embeds, interactive map indices, and agent lead routing.

Sherrane Homes Hospitality Β· Brand πŸ“… 70% Direct Booking

Sherrane Homes

Luxury boutique rental storefront eliminating marketplace commissions via direct booking and calendar sync.

View All 20 Commercial Case Studies β†’

What founders & teams say

Direct feedback from commercial founders, clinics, and enterprises across East Africa and globally.

β˜…β˜…β˜…β˜…β˜… 4.9 / 5.0 (63+ Reviews)

Free developer tools & utilities

Small software experiments built to speed up development workflows and client handoffs.

Free Tool

SEO Meta Linter

Instant verification of Open Graph images, Twitter cards, and structured JSON-LD schemas.

Utility

Invoice Generator CLI

Lightweight script to compile clean PDF invoices with instant M-Pesa QR codes.

Audit Tool

WP Speed Auditor

Quick diagnostic script to pinpoint slow MySQL queries and plugin asset bottlenecks.

Template

Client Onboarding Kit

A structured technical questionnaire and wireframe kit for new software projects.

Cyril waving
// 05. INTERACTIVE SANDBOX
πŸ‘‹ "Hi! Type a concept to compile a technical plan."

Have an idea?
Let's compile a plan.

Type what you need into the live JavaScript playground on the right, or click a preset to see the recommended architecture stack and delivery timeline.

Start a Project β†’ WhatsApp Chat
idea.js ● node v20
import { compilePlan } from '@cyril/builder';
// Enter your concept below:
Presets:
> Ready. Click 'Run' to generate technical architecture.