Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am Phenius, senior mobile iOS android developer I have built systems that solve different problems for the society this includes payment systems like my cashi and power financial wellness alongside a checkout gateway for Gladys technologies which is used by Uber Eats as default Kenyan wallet aside from that I have also build CarDuka a used car and auction marketplace for NCBA bank two of my systems ie my cashi and CarDuka have more than 5million users…I am Phenius, senior mobile iOS android developer I have built systems that solve different problems for the society this includes payment systems like my cashi and power financial wellness alongside a checkout gateway for Gladys technologies which is used by Uber Eats as default Kenyan wallet aside from that I have also build CarDuka a used car and auction marketplace for NCBA bank two of my systems ie my cashi and CarDuka have more than 5million users

Phenius Muthomi

App Developer, Full Stack Developer, UI Designer, +2





I am Phenius, senior mobile iOS android developer I have built systems that solve different problems for the society this includes payment systems like my cashi and power financial wellness alongside a checkout gateway for Gladys technologies which is used by Uber Eats as default Kenyan wallet aside from that I have also build CarDuka a used car and auction marketplace for NCBA bank two of my systems ie my cashi and CarDuka have more than 5million users…I am Phenius, senior mobile iOS android developer I have built systems that solve different problems for the society this includes payment systems like my cashi and power financial wellness alongside a checkout gateway for Gladys technologies which is used by Uber Eats as default Kenyan wallet aside from that I have also build CarDuka a used car and auction marketplace for NCBA bank two of my systems ie my cashi and CarDuka have more than 5million users

Available to hire

I am Phenius, senior mobile iOS android developer I have built systems that solve different problems for the society this includes payment systems like my cashi and power financial wellness alongside a checkout gateway for Gladys technologies which is used by Uber Eats as default Kenyan wallet aside from that I have also build CarDuka a used car and auction marketplace for NCBA bank two of my systems ie my cashi and CarDuka have more than 5million users

Skills

Swift

GraphQL

GitHub

Experience Level

Swift

Expert

GraphQL

Expert

GitHub

Expert

Language

English

Advanced

Swahili

Intermediate

Work Experience

Senior iOS Developer at NCBA Group

February 1, 2025 - Present

Developed CardDuka iOS app using Swift and SwiftUI; integrated RESTful APIs and GraphQL; enabled real-time vehicle listings and loan pre-approvals; implemented offline access and improved state management; resolved critical production issues in legacy Swift and React Native; contributed to architecture and product vision; created reusable SwiftUI components; supported App Store deployment; collaborated with QA, designers, and backend teams to align with CardDuka's product roadmap.

Senior iOS Developer at Power Financial Wellness

August 1, 2023 - February 1, 2025

Developed and maintained CardDuka native iOS app using Swift and SwiftUI; integrated RESTful and GraphQL APIs for real-time listings and pre-approvals; improved offline access and state management; identified and resolved issues across Swift, React Native, and legacy Objective-C codebases; supported end-to-end release cycles including TestFlight and App Store deployment; onboarded features such as KYC and payments; collaborated with cross-functional teams to align with product vision; implemented reusable UI components and improved reliability for East Africa deployments.

iOS Developer at Glady's

April 1, 2020 - July 31, 2023

Led development of the Glady's iOS mobile app focusing on a clean user experience and reliable performance; implemented MVVM architecture; built scalable UI components; used Core Data for offline storage; integrated RESTful and GraphQL APIs; contributed to backend API integration and third-party support; redesigned navigation flows and interfaces with cross-functional teams; produced reusable UI components improving consistency and performance; supported release cycles and onboarding features.