JavaScript Developer

Job Descritpion of JavaScript Developer

4 to 8 Years Relevant Experience

We are seeking a highly skilled JavaScript Developer with extensive experience in building custom HTML5 video players for OTT platforms. The ideal candidate will have deep expertise in Video.js, adaptive streaming protocols (HLS/DASH), and Digital Rights Management (DRM) technologies like Widevine, FairPlay, and PlayReady. This role focuses on delivering an optimized video playback experience for both live and VOD content across platforms.

Key Responsibilities:

• Design, develop, and maintain a custom HTML5-based video player using JavaScript, Video.js, or similar libraries.
• Implement adaptive bitrate streaming (HLS, MPEG-DASH) to support smooth and efficient playback.
• Integrate Digital Rights Management (DRM) technologies using Encrypted Media Extensions (EME) to ensure secure video delivery.
• Optimize performance metrics like startup time, buffering, latency, and seamless playback for live and VOD streams.
• Develop custom plugins for the player to support analytics, advertising (e.g., VAST/VMAP), subtitles, and QoE enhancements.
• Troubleshoot video playback issues across browsers and devices to ensure cross-platform compatibility and performance.
• Collaborate closely with backend, QA, DevOps, and design teams to integrate player with backend APIs, CDNs, and analytics tools.
• Ensure high-quality, well-tested code through unit/integration testing and active participation in code reviews.

Must-Have Skills:

• Strong proficiency in JavaScript (ES6+), HTML5, and CSS3
• Minimum 6 years of hands-on JavaScript development experience, with a focus on video platforms
• Deep experience with Video.js, or alternatives such as Shaka Player, hls.js, or dash.js
• Solid understanding of adaptive streaming protocols: HLS, MPEG-DASH
• Practical experience implementing DRM solutions: Widevine, FairPlay, PlayReady
• Familiarity with MSE (Media Source Extensions) and EME (Encrypted Media Extensions)
• Proven experience in OTT environments, including live and VOD streaming
• Strong grasp of cross-browser compatibility and responsive playback challenges

Preferred Skills:

• Experience with video analytics integration (e.g., Conviva, Mux, Google Analytics)
• Familiarity with video advertising standards (e.g., VAST, VMAP)
• Knowledge of CDN video delivery workflows
• Agile development experience with tools like Jira, Git, and CI/CD pipelines

Required Skills for JavaScript Developer Job

JavaScript

HTML5

CSS3