Looking for a job

Tomasz Szewczyk

@tomaszszewczyk

Message

I build scalable React, React Native, and Connected TV applications for streaming platforms.

Poland

Message

What I'm looking for

I'm looking to lead and build scalable React, React Native, and Connected TV products, solving streaming, playback, compatibility, and performance challenges across web, mobile, and TV platforms.

I've built and scaled production web, mobile, and Connected TV applications for A Parent Media Co., Laminar Global, ARC Software, and enterprise clients.

At A Parent Media Co., I lead cross-platform architecture and technical strategy across React, React Native, and TypeScript while mentoring a team of 10 engineers. I also lead Connected TV work across Roku, Samsung Tizen, LG webOS, and Vizio.

I've migrated existing TV codebases to React Native, created reusable cross-platform architectures, and delivered TV applications across major platform stores. My work includes custom AVPlay playback, offline video downloads, real-time IoT device management, and large-screen TV adaptations.

I focus on reliable streaming and practical performance improvements, including reducing video-playback CPU use from roughly 80% to 30%. I enjoy solving playback, compatibility, and device constraints across hardware generations dating back to 2017.

Experience

Work history, roles, and key accomplishments

Senior React / React Native Engineer

A Parent Media Co. Inc. (APMC)

Jan 2024 - Aug 2026 (2 years 7 months)

Lead architecture and technical strategy for cross-platform applications, mentor a team of 10 engineers, and serve as Connected TV Lead across Roku, Samsung Tizen, LG webOS, and Vizio. Improved video playback stability and performance, designed hosted application architecture for Tizen and webOS, and built a custom Samsung AVPlay-based playback layer.

React React Native TypeScript JavaScript NodeJS Tizen Samsung AVPlay LG WebOS Roku Vizio HLS.js Shaka Player HLS MPEG Dash CMAF OTT HTML5

Senior React / React Native Engineer & Technical Lead

Laminar Global

Aug 2022 - Jan 2024 (1 year 5 months)

Led a team of 3 engineers developing production applications across web, mobile, and Connected TV platforms. Provided technical leadership, designed scalable frontend architectures, and ported existing Connected TV applications to React Native for greater code reuse.

React React Native TypeScript JavaScript Roku Samsung Tizen LG WebOS

Senior React / React Native Engineer

Laminar Global

Apr 2022 - Aug 2022 (4 months)

Developed production applications using React and React Native, ported Connected TV applications to React Native, and resolved complex frontend and platform-specific issues. Implemented performance improvements that increased application responsiveness on Smart TV devices.

React React Native TypeScript JavaScript LG WebOS OTT

React / React Native Engineer

ARC Software

Jan 2021 - Apr 2022 (1 year 3 months)

Developed production web and mobile applications using React and React Native for a major OTT client. Built a mobile application and a Smart TV application from scratch, owning key components and contributing to frontend architecture and performance optimization.

React React Native JavaScript TypeScript Smart TV OTT

Frontend Engineer · React / React Native

devTicon

Apr 2019 - Jan 2021 (1 year 9 months)

Developed cross-platform mobile and IoT applications using React Native and Ionic, and built web applications using Angular and JavaScript for enterprise clients. Integrated applications with backend services and APIs, including GraphQL, and worked across the full application lifecycle.

React Native Ionic Angular JavaScript TypeScript GraphQL IoT