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

Hi, I’m Derek Hannah—a mobile and full-stack developer with over 15 years of hands-on experience. I love turning ideas into high-performing software and delivering robust apps across platforms with a focus on performance, scalability, and user experience. I’m energized by solving complex problems, leading teams, and collaborating with product and design to create elegant, user-friendly solutions. My experience spans native mobile, web, cloud, AI tooling, and CI/CD, and I’m always eager to learn and improve.…Hi, I’m Derek Hannah—a mobile and full-stack developer with over 15 years of hands-on experience. I love turning ideas into high-performing software and delivering robust apps across platforms with a focus on performance, scalability, and user experience. I’m energized by solving complex problems, leading teams, and collaborating with product and design to create elegant, user-friendly solutions. My experience spans native mobile, web, cloud, AI tooling, and CI/CD, and I’m always eager to learn and improve.

Derek Hannah

Full Stack Developer, Web Developer, Back-End Developer, +2





Hi, I’m Derek Hannah—a mobile and full-stack developer with over 15 years of hands-on experience. I love turning ideas into high-performing software and delivering robust apps across platforms with a focus on performance, scalability, and user experience. I’m energized by solving complex problems, leading teams, and collaborating with product and design to create elegant, user-friendly solutions. My experience spans native mobile, web, cloud, AI tooling, and CI/CD, and I’m always eager to learn and improve.…Hi, I’m Derek Hannah—a mobile and full-stack developer with over 15 years of hands-on experience. I love turning ideas into high-performing software and delivering robust apps across platforms with a focus on performance, scalability, and user experience. I’m energized by solving complex problems, leading teams, and collaborating with product and design to create elegant, user-friendly solutions. My experience spans native mobile, web, cloud, AI tooling, and CI/CD, and I’m always eager to learn and improve.

Available to hire

Hi, I’m Derek Hannah—a mobile and full-stack developer with over 15 years of hands-on experience. I love turning ideas into high-performing software and delivering robust apps across platforms with a focus on performance, scalability, and user experience.

I’m energized by solving complex problems, leading teams, and collaborating with product and design to create elegant, user-friendly solutions. My experience spans native mobile, web, cloud, AI tooling, and CI/CD, and I’m always eager to learn and improve.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Lead Mobile Developer at Baird

January 1, 2024 - Present

Led the development of a Flutter-based mobile app from ground up, using Bloc for robust, scalable state management. Engineered custom Flutter plugins to integrate RSA SDK (security/authentication) and MiSnap SDK (mobile capture and ID verification), delivering secure, seamless user experiences. Designed and implemented CI/CD pipelines using Azure DevOps and Fastlane, automating builds, tests, and deployments across iOS and Android. Served as technical lead, defining architecture standards, mentoring engineers, reviewing code, and coordinating with stakeholders to align product goals with practical technical solutions. Built APIs using NestJS and integrated with internal services.

Senior Developer at Google

January 1, 2021 - January 1, 2024

Contributed to Checks by Google, focusing on App Compliance, Code Compliance, and AI Safety to help developers detect data usage risks, SDK behavior violations, and policy noncompliance in mobile apps. Built backend components in C++, Java, and Kotlin for static/dynamic app analysis and privacy auditing, integrating with internal APIs and decompilation services. Built intelligent AI Agents using Google’s Agent Framework, LangChain, Gemini, and Python to automate risk detection, analyze privacy policies, classify sensitive data use, and provide remediation suggestions. Created AI-powered CLI tools (Go + Cobra) and IDE extensions that embedded real-time compliance feedback into Android Studio and VSCode. Helped integrate Checks directly into Firebase, enabling automated scans and AI-generated insights from within the Firebase console.

Senior Mobile Developer at Cleveland Clinic

January 1, 2019 - January 1, 2021

Developed flagship Flutter app integrating MyChart & Video Visit SDKs with Flutter MethodChannels; implemented secure SSO across native SDKs; built with the BLoC pattern. Contributed to React Native apps (Vidal Scout, Express Care Online) and Angular web apps. Led CI/CD pipelines with Fastlane and GitLab.

Senior Mobile Developer at LabCorp

November 1, 2017 - January 1, 2019

Maintained native iOS (Objective-C) and Android (Java) apps; migrated legacy apps to modern Swift/Kotlin; updated FCM integration. Built custom push notification services using Spring Boot and IBM queue integration. Worked with Ionic and Angular on hybrid mobile/web apps.

Senior Mobile Instructor at The Software Guild

May 1, 2016 - November 1, 2017

Authored and taught curriculums for native Android, iOS, and Fullstack JavaScript; recorded screencasts; mentored students; provided remote feedback and assessments.

Senior Mobile Developer at KeyBank

January 1, 2015 - May 1, 2016

Built hybrid mobile apps with Ionic, Cordova, AngularJS; used MobileFirst Platform. Developed native apps in Swift, Objective-C, Java. Implemented MFA and check scanning via custom Cordova plugins. Worked on BackBase web apps, Node.js APIs, Java EE backend services.

Senior Mobile Developer at Realeflow

February 1, 2014 - January 1, 2015

Led development of MVVM hybrid apps with Kendo UI, jQuery Mobile; leveraged Cordova, Node.js, and Jenkins CI/CD. Delivered full product lifecycle from ideation to release.

UX JavaScript Developer at StreamLink Software

June 1, 2013 - February 1, 2014

Built grant tracking software frontends using jQuery, Kendo UI, Bootstrap. Delivered Agile-driven feature development within .NET environments.

Interactive Developer at Wyse Advertising

July 1, 2010 - June 1, 2013

Developed interactive ad campaigns using HTML5, AS3/Flash, WordPress.

JavaScript Developer at Sapling Learning

September 1, 2012 - April 1, 2013

Built interactive HTML5 eLearning content for desktop/mobile; used jQuery, CreateJS, Flash Toolkit for CreateJS conversion.

Flash Developer at Blue Frog Gaming

April 1, 2010 - July 1, 2010

Animated and coded AS3 logic for social media games (Facebook-focused).