Hi! My name is Deniz Nessa.
Experienced iOS & Android Developer

I help businesses bring ideas to life by designing and implementing the technology tools that they need to win.
Enterprise Grade
Having built apps with over 100K daily active users, I have a deep understanding of how scale, performance and graceful degradation play a significant role in the success of an application.
Pixel Perfect
I closely collaborated with UX designers in cross functional teams in order to produce high fidelity and pixel perfect applications that delight users.
Efficient
Over the years, I have acquired tricks of the trade that significantly speed up app development. I can build proof of concept apps within a week or two.
Diverse Industries
I built a variety of apps for a number of industries like health care, automotive, agriculture and transportation. I am excited to bring my expertise to your business.
Long-term Maintenance
I build apps with component-based architecture so that the parts can be easily replaced if they become obsolete in the future.
Based in U.S.
I am based in Central Time zone - adaptable to work with teams in Pacific or Eastern Time Zones.
My Portfolio
A selection of published work


iOS App
Wholesale Tracker is designed to give automotive dealers up-to-date information on their vehicles that are currently in-auction.


macCatalyst App
eclypse is a continuous localization tool that allows software development teams to coordinate localization efforts between translators, designers and developers.


iOS and Android App
Pioneer app helps farmers explore the impact of fertilizer on their crops in real-time, throughout the growing season and at harvest time to maximize profitability.


iOS and Android App
The UH CareLink app helps University Hospital patients take control of their own health by keeping track of appointments, medications and other items related to their care.


iOS App
Transit Hopper is a full featured transit planner app for up-to-date transit information, trip planning and route discovery.


iOS App
Provision is an app for automobile dealerships. Dealers can appraise the value of prospective vehicles in seconds and keep track of their inventory once those vehicles are acquired.
Open Source Contributions
Tech Stack
iOS
- Swift
- SwiftUI (preferred)
- UIKit
- Combine/RxSwift
- SwiftData/CoreData
- XCode
Android
- Kotlin
- Jetpack Compose (preferred)
- XML Layouts
- Flow/RxJava
- Hilt/Dagger
- Room DB
- Android Studio
Architecture
- MVI (preferred)
- MVVM
- Composable Architecture