Harris Robin Kalash

Vital Beats builds a regulated cardiac remote-monitoring medical device. I built the React Native app that surfaces live ECG data from the hardware to clinicians and patients.

Key achievements:

• Built the React Native app for a regulated cardiac remote-monitoring medical device, surfacing live ECG data to clinicians and patients
• Implemented native modules in Kotlin (Android) and Swift (iOS) to stream real-time ECG data with the reliability a medical device demands
• Sustained a 98%+ crash-free session rate and sub-2.5s time-to-interactive across the app
• Built robust offline handling so monitoring stayed reliable through connectivity gaps

As the sole mobile developer for Solid Starts, I built a React Native app that helps parents introduce solid foods to their babies through evidence-based guidance.

Key achievements:

• Scaled the platform from launch to over 2 million users worldwide
• Built and owned the AWS backend, including auth and secure data storage
• Optimized app performance and database queries to stay responsive under heavy load
• Maintained 99.9% uptime delivering nutritional guidance to families

I taught students to build full-stack applications with React, Node.js, and TypeScript, and helped them launch their careers in software.

Key achievements:

• Instructed students in building full-stack apps with React, Node.js, and TypeScript
• Mentored students through final projects, focused on scalable, maintainable code
• Supported students in their job search with portfolio and resume guidance

Infinite Red is one of the top React Native consultancies in the world, where I shipped mobile and web apps for a range of clients.

Key achievements:

• Delivered React Native apps for iOS and Android, plus supporting web applications, across multiple client engagements
• Contributed to open source projects, including the Ignite boilerplate
• Wrote blog posts and tutorials to share React Native best practices

Uplet is an Airbnb-like platform that lets fitness professionals book spaces for their classes. I co-founded the company and led product engineering.

Key achievements:

• Co-founded the company and led development of the mobile application
• Managed a team of engineers and partnered closely with product and design
• Helped raise a $400,000 seed round