Joshua Ng'andwe

about me

Results-driven Mobile Engineer With 6+ years of experience building scalable, production-grade mobile and front-end applications, I have owned features end to end, including integrating AI-driven capabilities to improve personalization, decision-making, and user experience. My core focus is building reliable, high-performance user-facing systems with long-term maintainability in mind.

kotlin

javascript

typescript

nextjs

react

react-native

HTML5

CSS3

sass

nodejs

MongoDB

jetpack compose

redux

mobx

jest

git

+260963495461

ngandwejoshua@gmail.com

service

As a Front-end and Mobile Engineer, I bring a passion for crafting immersive digital experiences to every project. My services are designed to transform ideas into intuitive and engaging interfaces that captivate users. Whether you're looking to enhance your web presence or create a standout mobile app, I have the expertise to bring your vision to life. From responsive web design to native app development, I offer a range of services to meet your needs. Explore the list below to learn more about how I can help elevate your digital presence.

01

Responsive web design

Developing websites that are optimized for various screen sizes and devices, ensuring that the content displays correctly and is easy to interact with on smartphones, tablets, and desktops.

02

Mobile App Development

Building native or cross-platform mobile applications using technologies like React Native and Kotlin, ensuring that the apps are fast, responsive, and provide a great user experience

03

Performance Optimization

Improving the performance of websites and mobile applications by optimizing code, images, and other assets, ensuring fast load times and smooth interactions.

04

CI/CD Implementation

Setting up Continuous Integration and Continuous Deployment pipelines for web and mobile applications, automating the build, test, and deployment processes to ensure faster and more reliable delivery of software updates.

Portfolio

Explore a selection of projects that showcase my expertise and passion for mobile and web front-end development. Each project represents a unique challenge I've tackled, blending creativity with technical skill to deliver exceptional user experiences across platforms.

Stelly-tv - Web Platform

Stelly was a TV streaming platform that allowed users to subscribe to individual channels using a coin-based system. I worked on a complex, performance-sensitive frontend, applying React, system optimization, and real-time streaming integration. I gained strong experience in building scalable user flows, streaming platforms, and high-performance web applications.

Bptn/Obsidi - Mobile App

BPTN is a platform connecting Black professionals to career opportunities across North America. I was honored to work on a complex mobile app, applying mobile architecture, AI personalization, and performance optimization, while gaining deep experience in system ownership and scalable product delivery.

Bptn Demo App - Native Android

This demo project focused on rewriting the BPTN Android app as a fully native application to improve performance and user experience. I worked on a complex rebuild using Kotlin and Jetpack Compose, applying OOP, MVVM, and clean architecture. I strengthened my skills in native Android development, architecture design, and long-term maintainability.

Comgrow - Mobile Banking App

Comgrow is a mobile app that helps savings and credit groups manage accounts and transactions digitally. I worked on a complex financial mobile system, applying secure mobile architecture, offline-first design, and payment workflows. I gained strong experience in fintech app development, data consistency, and building reliable systems for real-world users.

Zeyuni — E-Learning Web Platform

Zeyuni is an e-learning platform for secondary students (grades 10 – 12) offering structured video lessons by topic. I built the web platform and applied adaptive streaming techniques learned from Stelly, replacing a slow setup. This improved video load times by 75% and deepened my experience in streaming optimization across web and mobile apps.

Ilunge — Mobile Service App

Ilunge was a mobile app that helped users find nearby mechanics when stranded. I was honored to co-found and work on the project, combining mobile development with project management to move the product to production. I gained hands-on experience in startup execution, decision-making, and building location-based mobile solutions from idea to launch.

Experience

With over 6+ years of experience in front-end and mobile development, I've led the development of cross-platform mobile applications and web solutions, honing my skills and deepening my understanding of user-centric design.

Obsidi

Aug, 2022 - Oct, 2025

Senior Full-Stack Mobile Engineer

I worked as the senior engineer on a small mobile team, taking ownership of the mobile application alongside a lead manager and a junior developer. I led feature design and delivery from planning to release, built AI-enabled features to improve personalization and user experience, and made key technical decisions around performance, security, and scalability. I collaborated closely with product and design teams, mentored the junior developers, reviewed code, and ensured the app remained stable and reliable in production.

Stelly-tv

Jul 2021 - Jan 2023

Fullstack Developer

I built the entire frontend of a video streaming platform and contributed to backend development. I improved performance, reduced page load times by 30%, and implemented video streaming and real-time chat. I also worked with cloud services to support storage, streaming, and serverless features.

Comgrow

Feb 2021 - Jul 2022

Lead Mobile Developer

I led mobile development for a village banking app designed for rural communities. I built secure and user-friendly features such as biometric login and recurring payments, focusing on reliability and ease of use. My work helped improve adoption and made the app practical for users with limited connectivity.

Bikolinah Carhire

May 2020 - Jul 2021

Fullstack Developer

I developed and maintained the company’s web application and modernized the frontend by migrating it from jQuery to React. This improved performance, maintainability, and overall user experience. I worked closely with stakeholders to deliver features that supported the business.

Zambezii, Nisco Group of Companies

Jun 2017 - Jul 2021

Junior Front-end Developer

I worked on an eCommerce website, building and maintaining features such as authentication and online stores. I collaborated with designers and developers, fixed bugs, tested new features, and learned best practices in frontend development, performance, and security.

AboutMe

MyCapabilities

01

Responsive web design

02

Mobile App Development

03

Performance Optimization

04

CI/CD Implementation

FeaturedProjects

Stelly-tv - Web Platform

Bptn/Obsidi - Mobile App

Bptn Demo App - Native Android

Comgrow - Mobile Banking App

Zeyuni — E-Learning Web Platform

Ilunge — Mobile Service App

WorkExperience

Obsidi

Senior Full-Stack Mobile Engineer

Stelly-tv

Fullstack Developer

Comgrow

Lead Mobile Developer

Bikolinah Carhire

Fullstack Developer

Zambezii, Nisco Group of Companies

Junior Front-end Developer

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MyCapabilities

01

Responsive web design

02

Mobile App Development

03

Performance Optimization

04

CI/CD Implementation

FeaturedProjects

Stelly-tv - Web Platform

Bptn/Obsidi - Mobile App

Bptn Demo App - Native Android

Comgrow - Mobile Banking App

Zeyuni — E-Learning Web Platform

Ilunge — Mobile Service App

WorkExperience

Obsidi

Senior Full-Stack Mobile Engineer

Stelly-tv

Fullstack Developer

Comgrow

Lead Mobile Developer

Bikolinah Carhire

Fullstack Developer

Zambezii, Nisco Group of Companies

Junior Front-end Developer

AboutMe