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DIAGNAL TECHNOLOGIES (P) Ltd
DIAGNAL TECHNOLOGIES (P) Ltd

2801, Yamuna Building,Technopark Phase III,Trivandrum , 695583

https://www.diagnal.com

Senior Frontend Engineer (Contract)

Closing Date:22,May 2026
Job Published: 23,Apr 2026
Contact Email: vivekkumar.jaiswal@diagnal.com

Brief Description

Role Introduction

We are looking for a Frontend Engineer Web to build and enhance high-performance, consumer-facing web applications for video streaming and related products. The role focuses on designing, developing, and optimising web-based applications that deliver smooth, responsive, and reliable user experiences in a product-led environment.

You will work across the full application lifecycle from development to deployment and continuous improvement, collaborating with cross-functional teams to build scalable solutions integrated with multiple backend systems. The role involves contributing to large-scale, live production applications with a strong emphasis on code quality, performance, and maintainability.

You Will

  • Develop and maintain web applications & SDKs for video streaming across browsers and TV platforms

  • Build and support metadata management and supporting web platforms

  • Design and implement polished, responsive, and interactive UI components with a strong focus on usability and performance

  • Ensure frontend applications integrate seamlessly with backend services and APIs

  • Deliver features across the complete lifecycle: prototyping, development, testing, release, and post launch support

  • Ensure applications meet high standards for performance, stability, scalability, and reliability

  • Actively optimise non-functional aspects such as frontend performance, error handling, logging, and monitoring

  • Contribute to code quality through reviews, best practices, and continuous improvement

  • Work closely with designers to translate design assets into high-quality, pixel-accurate user interfaces

  • Collaborate with backend engineers, QA, and product teams to ensure smooth integrations and successful releases

  • Participate in discussions around technical decisions, timelines, and delivery planning

  • Stay current with frontend technologies, frameworks, browsers, operating systems, and development tools

  • Keep up to date with evolving devices, operating systems, and IDE updates that impact web and TV application development

  • Continuously improve skills in frontend architecture, performance optimisation, and large-scale application design

  • Gain exposure to complex, real-world product challenges in the OTT and streaming domain

Preferred Skills

You Have

  • 4+ years of professional experience in frontend web development within product engineering or project services environments

  • Strong hands-on expertise in JavaScript (ES6+), HTML5, CSS3, AJAX, and JSON

  • Minimum 2+ years of solid experience with any of the web frameworks and good understanding of state management, component architecture, and performance optimization

  • Proven experience building and maintaining large-scale, consumer-facing web applications with high interactivity, responsive behavior, and pixel-perfect UI implementation from design systems

  • Strong debugging and troubleshooting skills, including browser DevTools, network analysis, performance profiling, memory leak detection, HAR analysis, and resolving production issues in live environments

  • At least 1+ year of hands-on experience integrating and customizing video players such as Shaka Player or equivalent adaptive streaming players

  • Working knowledge of video streaming technologies including HLS/DASH, DRM integrations, playback error handling, buffering optimization, and analytics event tracking

  • Experience implementing secure playback mechanisms including JWT-based authentication, tokenized media URLs, signed URLs, and role-based access validation

  • Good understanding of browser internals, rendering lifecycle, caching strategies, frontend performance tuning, and REST/GraphQL backend integrations

  • Experience working on deployed, live production applications with CI/CD pipelines and release management workflows

  • Prior experience in OTT, Media Streaming, E-commerce, Telecommunications, or other high-traffic consumer-facing platforms preferred

  • Bachelor’s degree in Computer Science or related field, or equivalent hands-on experience