Hello! I am SHELTON OTWERE

A <\developer> who

Judges a book by its cover...

Because if the cover does not impress you, what else can?

I'm a

Currently, I'm a Software Engineer at CODESPHERE DESIGNERS

I’m a self-taught UI/UX designer and full-stack web developer with a deep focus on PHP backend architecture and M-PESA API integrations. Over the past 4+ years, I’ve built and deployed real-world digital systems that power businesses and simplify complex workflows.

I design meaningful, scalable, and intuitive products—where thoughtful user experience meets solid engineering and measurable business impact.

What I Do

Software Engineering

Building scalable, secure, and high-performance applications with clean architecture and long-term maintainability in mind.

UI / UX Design

Designing intuitive interfaces and seamless user journeys that balance aesthetics, usability, and business objectives.

Full-Stack Web Development

End-to-end development using PHP, JavaScript, and modern frameworks—from database design to polished frontend delivery.

M-PESA API Integrations

Secure C2B, B2C, and B2B payment integrations including STK Push, callbacks, reconciliation, and automation.

API Design & Integration

Designing and consuming RESTful APIs, handling authentication, callbacks, webhooks, and third-party system integration.

Data Handling & JSON Processing

Structuring, extracting, validating, and transforming JSON data for efficient system communication and analytics.

Selected Projects

SmartCode Digital Technologies

Official corporate website showcasing digital services, branding, and system offerings for SmartCode Digital Technologies.

Visit Website

Chatin AI Platform

An AI-powered conversational platform designed for smart assistance, automation, and interactive user engagement.

View Project

Supercopy

A clean, conversion-focused web platform built to streamline digital workflows and enhance user productivity.

Visit Platform

M-PESA API Gateway

A secure payment gateway supporting C2B, B2C, and B2B transactions with callbacks, automation, and reconciliation.

Explore Gateway

SmartPay – Payment Links

Dynamic payment links system enabling fast, trackable M-PESA payments without requiring a full checkout flow.

Try SmartPay

NextGenPOS

A modern Point-of-Sale system designed for fast retail operations, inventory control, sales tracking, and real-time reporting.

Integrated with M-PESA & automated sales reporting

View POS System

Aliwa Shop – Retail Management System

A complete retail shop management platform handling products, sales, stock movement, and daily business analytics.

Visit Platform

Affiliate Marketing Platforms

High-conversion affiliate systems with automated onboarding, commissions, dashboards, and withdrawals.

FlexWin CashLink QuickMulla

AI Assistants & Automation

Custom-built AI assistants designed to guide users, automate support, and enhance platform usability.

View Assistant

Contact Me

Let's connect! Send me an email, call, WhatsApp, or fill the form below.

Email: sheltonotwere@ci.co.ke

Phone / WhatsApp: +254 797 512 500 | WhatsApp