I am a Software Engineer at Harness. Specialising in TypeScript and React, I have experience in creating highly reusable frameworks and architectures. My focus is on enhancing usability and performance, ensuring efficient and robust solutions for the platform

Sayantan Mondal

Smarter Filtering in React – How We Built a Reusable Component for Complex Data

Discover how we transformed a clunky, inconsistent filtering UI into a powerful, reusable React system at Harness. From failed OOP patterns to a sleek, context-powered design, this talk shares hard-earned lessons on building scalable, intuitive components for complex real-world apps.

Software Engineer, Harness

Discover how we transformed a clunky, inconsistent filtering UI into a powerful, reusable React system at Harness. From failed OOP patterns to a sleek, context-powered design, this talk shares hard-earned lessons on building scalable, intuitive components for complex real-world apps.


Speaker Details:
Sayantan Mondal
Software Engineer, Harness

Smarter Filtering in React – How We Built a Reusable Component for Complex Data - Sayantan Mondal

Join a lineup of frontend leaders as they share practical insights on speeding up frontends, designing framework-friendly components, and delivering scalable experiences. 

Each talk dives into real-world challenges and approaches you can apply today.

Chapters:
41:07 Ashita Prasad — Solving the Monolithic Frontend Crisis
1:15:40 Mayank Mahavar — Framework Design Lessons: Catalyst core for Users
2:26:32 Ankeet Maini — The Story of two World Cups: Streaming World Cups to millions
3:02:46 Naveen Chand — Interfaces for Humans and Machines: Designing React component SDKs
3:27:15 Udhayaprakash R V — How to Cut load times 10x and slash cost by 50%
5:17:37 Sayantan Mondal — Building reusable components for complex data
5:47:22 Nitesh Seram — Language-agnostic approaches for modern frontend
6:30:12 Sulagna Shosh — The Future of Real-time React

What you’ll learn:
Practical frontend architecture patterns to reduce monolith fallout
Designing reusable, scalable components and SDKs for teams
Strategies to optimize load times and costs at scale
Real-time updates and streaming considerations for large audiences

Registration for React India 2026 is now open. 
Check the official React India site for ticket details and dates.

Sayantan Mondal

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Smarter Filtering in React – How We Built a Reusable Component for Complex Data - Sayantan Mondal

React India 2025 - Day 01