Senior Software Development Engineer - Web

Job Summary:
As a Senior Software Engineer, you’ll build a world-class platform for our customers by solving complex technical problems and building systems that run at scale. You will play a critical role in developing code and solving problems independently while shaping our next-gen solutions that drive our company's mission forward. We seek candidates with a passion for crafting elegant code and building innovative software solutions.

About the team:
Join our Player team to build and optimize world-class video playback experiences for millions of users on Desktop browsers, Smart TVs (like webOS, Tizen, and VIDAA), Mobile browsers etc. If you’re passionate about streaming technology and delivering smooth, high-quality playback, join us!

• Architecture & Design: Lead the design of complex front-end systems using modern frameworks (React.js, Next.js, and Typescript preferred) and state management libraries.

• Performance Engineering: Optimize web applications for maximum speed, scalability, and Core Web Vitals. Optimize startup time, rebuffering, memory usage, and rendering performance, PFR, startup time, errors, and engagement. 

• Cross Browser: Ensure a seamless experience across desktop browsers, mobile web, and Smart TV web platforms (Tizen, webOS).

• Mentorship: Conduct rigorous code reviews and mentor junior/mid-level engineers on best practices and design patterns.

• Collaboration: Partner with Product Managers and UX Designers to translate wireframes into high-quality, reusable components.

• Streaming: Integrate player UI with video playback engines (HTML5, MSE, EME). 

• Analytics & QoS: Design and integrate analytics and observability frameworks to track key metrics such as startup time, buffering ratio, rebuffer frequency, bitrate switches/drops, playback failures, and user engagement, enabling data-driven performance optimization and rollout decisions.

• Triaging Production issues: Ability to debug and resolve production issues under pressure, demonstrating a strong ownership mindset with a bias for performance and reliability, and delivering timely fixes that minimize customer impact.

• Security Compliance: Strong understanding of web security best practices, including XSS prevention, CSP, CORS, secure media playback, and DRM-related attack vectors.

• 4+ years of professional experience in modern web development.

• Expert-level knowledge of TypeScript, React/Next.js, and CSS-in-JS (styled-components/Tailwind).

• Deep hands-on experience with HTML5 video players and SDKs such as Shaka Player, HLS.js, Video.js, and Dash.js, including customization of UI, buffering logic, error handling, and ABR behavior.

• Protocols: Expert knowledge of HLS and MPEG-DASH, including manifest structure, segmenting, DRM, and adaptive bitrate.

• Hands-on experience with modern build systems (Webpack, Vite, Rollup), CI/CD pipelines, and automated testing (Jest, React Testing Library, Playwright), ensuring high-quality A/B experiments and production-ready releases.

• Bachelor’s or Master’s degree in Computer Science or a related field.

• 4+ years of Web development experience.