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I am a Mobile Developer with proven expertise in Android and iOS app development, leveraging REST APIs, third-party libraries, and modern frameworks. I am skilled at collaborating with cross-functional teams to deliver user-centric, high-quality applications. I am adept at problem-solving, optimizing performance, and implementing innovative solutions that enhance user experience and business value. Over the years, I have successfully led and contributed to various mobile projects in banking and finance, employing secure coding practices and modern architectures. I continuously strive to improve application performance and reliability while mentoring upcoming developers and driving efficient CI/CD practices.…I am a Mobile Developer with proven expertise in Android and iOS app development, leveraging REST APIs, third-party libraries, and modern frameworks. I am skilled at collaborating with cross-functional teams to deliver user-centric, high-quality applications. I am adept at problem-solving, optimizing performance, and implementing innovative solutions that enhance user experience and business value. Over the years, I have successfully led and contributed to various mobile projects in banking and finance, employing secure coding practices and modern architectures. I continuously strive to improve application performance and reliability while mentoring upcoming developers and driving efficient CI/CD practices.

Dennis Mugambi

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I am a Mobile Developer with proven expertise in Android and iOS app development, leveraging REST APIs, third-party libraries, and modern frameworks. I am skilled at collaborating with cross-functional teams to deliver user-centric, high-quality applications. I am adept at problem-solving, optimizing performance, and implementing innovative solutions that enhance user experience and business value. Over the years, I have successfully led and contributed to various mobile projects in banking and finance, employing secure coding practices and modern architectures. I continuously strive to improve application performance and reliability while mentoring upcoming developers and driving efficient CI/CD practices.…I am a Mobile Developer with proven expertise in Android and iOS app development, leveraging REST APIs, third-party libraries, and modern frameworks. I am skilled at collaborating with cross-functional teams to deliver user-centric, high-quality applications. I am adept at problem-solving, optimizing performance, and implementing innovative solutions that enhance user experience and business value. Over the years, I have successfully led and contributed to various mobile projects in banking and finance, employing secure coding practices and modern architectures. I continuously strive to improve application performance and reliability while mentoring upcoming developers and driving efficient CI/CD practices.

Available to hire

I am a Mobile Developer with proven expertise in Android and iOS app development, leveraging REST APIs, third-party libraries, and modern frameworks. I am skilled at collaborating with cross-functional teams to deliver user-centric, high-quality applications. I am adept at problem-solving, optimizing performance, and implementing innovative solutions that enhance user experience and business value.

Over the years, I have successfully led and contributed to various mobile projects in banking and finance, employing secure coding practices and modern architectures.
I continuously strive to improve application performance and reliability while mentoring upcoming developers and driving efficient CI/CD practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Mobile Developer (Android & iOS) at NLS Tech Solutions

August 1, 2023 - Present

Implemented AES encryption and code hardening techniques to protect sensitive financial data and prevent reverse engineering. Led and collaborated on mobile banking integrations for Android and iOS, delivering secure payment and account features for multiple SACCO and banking clients. Automated build, testing, and deployment pipelines with Fastlane CI/CD, reducing release times and improving delivery consistency. Implemented XCTest and Junit frameworks to ensure application reliability. Revamped Kimisitu Android and iOS apps, fixing 98% of bugs and raising the Play Store rating from 3.7 and 3.3 to above 4.5. Built and deployed iOS banking apps for KWFT, Magereza, and Tembo Sacco using Swift, SwiftUI, and Combine. Enhanced Vision Fund mobile banking app with a server-driven architecture to improve scalability, adaptability, and usability.

Software Engineer iOS (Consultant/Contractor) at Hey Innovation

September 1, 2024 - August 27, 2025

Developed a new iOS app with Swift and AWS Amplify to streamline data management and performance. Integrated Cloudflare Images, Stream, and R2 for faster media loading. Enabled chat and voice messaging via GetStreamChat SDK. Automated build, test, and deployment with GitLab CI/CD and Fastlane, reducing time-to-market.

Mobile Developer at Eclectics International Limited

February 1, 2023 - August 27, 2025

Built Deliverance Church Android app for automated funds collection and administration. Improved Tijara mobile banking performance by 30%. Integrated mobile banking on iOS using Swift and UIKit. Mentored interns and assisted in client demonstrations.

Android Developer Intern at Pinch Africa

December 1, 2021 - August 27, 2025

Optimized app flexibility across devices using advanced Java SDK functions. Reduced testing risks by 95% via detailed error reporting. Integrated Google Maps API, Firebase Cloud Messaging, REST APIs, and third-party libraries.