Senior Mobile App Developer

Kastle Systems


Senior Mobile App Developer

US-VA-Falls Church

Job ID: 2026-4974
# of Openings: 1
Category: Information Technology & Software Development
CheckVideo

Overview

At CheckVideo, we are transforming video security with our AI-enabled cameras. Thousands of customers depend on us every day for mission-critical security, delivered through cloud infrastructure. This is a hybrid position out of Falls Church, VA that offers an opportunity to work on the cutting edge of technology with a great team and make meaningful contributions every single day. We are looking for an experienced Software Engineer responsible for software architecture, design, development & testing of CheckVideo’s flagship product assets. Additional duties include writing high performance, scalable & secure software to meet customer demands.

Responsibilities

• Design. Develop, test and deploy native iOS and Android applications

• Translate Figma designs into responsive mobile interfaces using NativeScript and CSS/SCSS

• Integrate mobile apps with backend services using RESTful APIs and OAuth2/JWT

• Maintain code quality with clean code and unit testing

• Optimize app performance for memory & battery consumption in mobile

• Handle app lifecycle from design, testing, App Store/Google Play deployment and support

• Scale and tune production software for high performance

Qualifications

• Education: Bachelor’s degree required; Advanced degree preferred

• Experience: 5+ years of developing software for mass market products

• Frameworks: Angular (Components, Services, Signals, RxJS, NgRx), React, Redux, NativeScript, NativeScript CLI, Vue.js, TypeScript, Swift, ObjC, Java, Kotlin, Coroutines, Jetpack, Retrofit, Room

• Styling: CSS and NativeScript-specific styling

• Tools: Visual Studio, Android Studio, and Xcode for platform-specific builds

• Testing: Jest, Karma, Jasmine

• Source code control systems: Git, Bitbucket

• Databases: SQLite, RxDB, Firestore, Couchbase Lite

• Operations: Strong skills in troubleshooting production issues

Helpful but not required

• Experience with media codecs and streaming protocols

• Prior experience with video processing

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