Hello World. 🖐🏽 I am Umar Saidu Auna, a passionate and results-driven Mobile Engineer with nearly a decade of technical experience, including 8 years dedicated to designing, developing, and deploying mobile applications using Flutter, Kotlin, and Java. Mobile Development has been a dream for me since my first encounter with it, and I have been committed to improving my craft every day. I enjoy working with Flutter, Kotlin, Android, Firebase, REST APIs, and exploring anything new and interesting in the world of mobile development for both Android and iOS. My expertise lies in debugging, software design, wire-framing, and a bit of front-end development. I take pride in crafting high-performance, user-centric applications and delivering seamless cross-platform experiences. Before specializing in Flutter, I honed my skills in native Android development with Java and Kotlin. Currently, I am exploring backend development with the Spring Boot framework, aiming to gain insightful knowledge and build robust backend systems to complement my mobile development skills. I am also a dedicated mentor and educator. I participated in the Google Developers Exchange Program as a Mentor, where I guided attendees on solving problems, introducing innovative ideas, and staying updated with the latest trends and features in mobile development. Additionally, I mentored Goodtalent labs - https://goodtalent.io/ learners virtually, teaching them the basics of Android Development and guiding them to complete projects showcased at the end of the program. As the Lead Organizer of GDG Minna (Google Developer Groups Minna) and OSCA Minna (Open Source Community Africa Minna Chapter), I am actively involved in fostering a vibrant developer community. https://speakerdeck.com/auna 2018-11-03 02:06:06 -0400 Sat, 11 Oct 2025 00:00:00 -0400 https://speakerdeck.com/auna/why-mistakes-are-the-best-teachers-turning-failure-into-a-pathway-for-growth https://speakerdeck.com/auna/why-mistakes-are-the-best-teachers-turning-failure-into-a-pathway-for-growth I gave a talk on how you can get started with flutter, in Road to DevFest event https://gdg.community.dev/events/details/google-gdg-banjul-presents-road-to-devfest/ I gave a talk on how you can get started with flutter, in Road to DevFest event https://gdg.community.dev/events/details/google-gdg-banjul-presents-road-to-devfest/ Thu, 11 Jan 2024 00:00:00 -0500 https://speakerdeck.com/auna/flutter-killing-two-birds-with-one-stone https://speakerdeck.com/auna/flutter-killing-two-birds-with-one-stone Jetpack Compose is a modern toolkit for building native Android UI. It simplifies and accelerates UI development on Android with less code, powerful tools, and intuitive Kotlin APIs. Jetpack Compose is a modern toolkit for building native Android UI. It simplifies and accelerates UI development on Android with less code, powerful tools, and intuitive Kotlin APIs. Fri, 18 Feb 2022 00:00:00 -0500 https://speakerdeck.com/auna/jetpack-compose-the-new-way-of-building-android-ui-1d7dfa45-5be2-4302-9d53-f5c5658e695a https://speakerdeck.com/auna/jetpack-compose-the-new-way-of-building-android-ui-1d7dfa45-5be2-4302-9d53-f5c5658e695a Kotlin is a cross-platform, statically typed, general-purpose programming language, it is also JVM based language developed by JetBrains as described before, a company known for the creation of IntelliJ IDEA, a powerful IDE for Java development. In Kotlin everything is an Object. Kotlin is a cross-platform, statically typed, general-purpose programming language, it is also JVM based language developed by JetBrains as described before, a company known for the creation of IntelliJ IDEA, a powerful IDE for Java development. In Kotlin everything is an Object. Thu, 25 Nov 2021 00:00:00 -0500 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-951b27dd-28ac-4c74-aacf-cc8c938b21c0 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-951b27dd-28ac-4c74-aacf-cc8c938b21c0 I gave a talk on Jetpack Compose, which is a Modern toolkit for building native Android UI. Jetpack Compose simplifies and accelerates UI development on Android with less code, powerful tools, and intuitive Kotlin APIs. I gave a talk on Jetpack Compose, which is a Modern toolkit for building native Android UI. Jetpack Compose simplifies and accelerates UI development on Android with less code, powerful tools, and intuitive Kotlin APIs. Sat, 06 Nov 2021 00:00:00 -0400 https://speakerdeck.com/auna/jetpack-compose-the-new-way-of-building-android-ui https://speakerdeck.com/auna/jetpack-compose-the-new-way-of-building-android-ui Did you notice your app size is needlessly large and figured your app resources specifically images are the culprit for this? If Yes, then Webp is for you…. Did you notice your app size is needlessly large and figured your app resources specifically images are the culprit for this? If Yes, then Webp is for you…. Fri, 27 Aug 2021 00:00:00 -0400 https://speakerdeck.com/auna/png-don-chop-space https://speakerdeck.com/auna/png-don-chop-space Not long ago, the iOS users were introduced to a new feature called 3D Touch. What this feature does is to provide a limited list of actions that you can do without entering an app. Of course, the people from Google were ready to respond to that. Boom!!! the App Shortcuts feature was included in Android 7.1.1 Not long ago, the iOS users were introduced to a new feature called 3D Touch. What this feature does is to provide a limited list of actions that you can do without entering an app. Of course, the people from Google were ready to respond to that. Boom!!! the App Shortcuts feature was included in Android 7.1.1 Sat, 10 Jul 2021 00:00:00 -0400 https://speakerdeck.com/auna/navigating-your-way-with-app-shortcuts https://speakerdeck.com/auna/navigating-your-way-with-app-shortcuts Not long ago, the iOS users were introduced to a new feature called 3D Touch. What this feature does is to provide a limited list of actions that you can do without entering an app. Of course, the people from Google were ready to respond to that. Boom!!! the App Shortcuts feature was included in Android 7.1.1 Not long ago, the iOS users were introduced to a new feature called 3D Touch. What this feature does is to provide a limited list of actions that you can do without entering an app. Of course, the people from Google were ready to respond to that. Boom!!! the App Shortcuts feature was included in Android 7.1.1 Sat, 10 Jul 2021 00:00:00 -0400 https://speakerdeck.com/auna/navigating-with-app-shortcuts https://speakerdeck.com/auna/navigating-with-app-shortcuts Sat, 26 Jun 2021 00:00:00 -0400 https://speakerdeck.com/auna/the-power-of-contributing-to-open-source-projects https://speakerdeck.com/auna/the-power-of-contributing-to-open-source-projects I gave a talk on Kotlin Next level of Android Development at DevFest Bauchi I gave a talk on Kotlin Next level of Android Development at DevFest Bauchi Sat, 23 Nov 2019 00:00:00 -0500 https://speakerdeck.com/auna/kotlin-next-level-of-android-development-devfest-bauchi https://speakerdeck.com/auna/kotlin-next-level-of-android-development-devfest-bauchi I gave a talk on Kotlin as the Next Level of Android Development at GDG Warri Google I/O Extended Event 2019 I gave a talk on Kotlin as the Next Level of Android Development at GDG Warri Google I/O Extended Event 2019 Sat, 20 Jul 2019 00:00:00 -0400 https://speakerdeck.com/auna/o-extended-2019 https://speakerdeck.com/auna/o-extended-2019 I gave a talk at Kotlin/Everywhere Lafia, Nassarawa State, Nigeria 19 on Kotlin the next level of Android Development. I gave a talk at Kotlin/Everywhere Lafia, Nassarawa State, Nigeria 19 on Kotlin the next level of Android Development. Wed, 26 Jun 2019 00:00:00 -0400 https://speakerdeck.com/auna/kotlin-next-level-of-android-development-1c640ea0-27ba-4868-93fc-ebd1627259a0 https://speakerdeck.com/auna/kotlin-next-level-of-android-development-1c640ea0-27ba-4868-93fc-ebd1627259a0 i gave a talk on kotlin as the big language when comes to Android Developement i gave a talk on kotlin as the big language when comes to Android Developement Sat, 08 Jun 2019 00:00:00 -0400 https://speakerdeck.com/auna/kotlin-next-level-of-android-development https://speakerdeck.com/auna/kotlin-next-level-of-android-development I gave a talk at Kotlin Night Kano on how you get started with Kotlin I gave a talk at Kotlin Night Kano on how you get started with Kotlin Sat, 27 Apr 2019 00:00:00 -0400 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-da7931af-5b9a-4e7f-bf4b-23a519c3a802 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-da7931af-5b9a-4e7f-bf4b-23a519c3a802 I gave a talk on Imposter Syndrome in Android Academy Kano, Which i believe starting something new is very scary and if care is not taken its leads to imposter syndrome. I gave a talk on Imposter Syndrome in Android Academy Kano, Which i believe starting something new is very scary and if care is not taken its leads to imposter syndrome. Sat, 26 Jan 2019 00:00:00 -0500 https://speakerdeck.com/auna/how-to-over-come-imposter-syndrome https://speakerdeck.com/auna/how-to-over-come-imposter-syndrome I gave a talk on what you need to know to get started with Kotlin in DevFest Makurdi. I gave a talk on what you need to know to get started with Kotlin in DevFest Makurdi. Sat, 01 Dec 2018 00:00:00 -0500 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-e370ee23-e18b-46ce-8a85-6b885827e9f5 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-e370ee23-e18b-46ce-8a85-6b885827e9f5 I gave a talk on what you need to get started with kotlin in DevFest North West Kano, and how easy its going to be especially to Java Developers. Presented in DevFest North West (Kano) 2018 I gave a talk on what you need to get started with kotlin in DevFest North West Kano, and how easy its going to be especially to Java Developers. Presented in DevFest North West (Kano) 2018 Sat, 17 Nov 2018 00:00:00 -0500 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-dab05ea4-7b51-4233-8729-27d45111d2be https://speakerdeck.com/auna/kotlin-what-you-need-to-know-dab05ea4-7b51-4233-8729-27d45111d2be A talk on what what you need to know in kotlin before you get started, and how easy its going to be especially to Java Developers. Presented in DevFest Jalingo 2018 A talk on what what you need to know in kotlin before you get started, and how easy its going to be especially to Java Developers. Presented in DevFest Jalingo 2018 Sat, 03 Nov 2018 00:00:00 -0400 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-b18354e1-1b41-41ca-a802-cb619c271635 https://speakerdeck.com/auna/kotlin-what-you-need-to-know-b18354e1-1b41-41ca-a802-cb619c271635