Summary
Overview
Work History
Education
Skills
Websites
Phone
Timeline
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Rohit Kumar

Bengaluru

Summary

Highly skilled Full-Stack Senior Technical Lead with a frontend specialization, extensive experience in JavaScript, React, and frontend architecture, having made significant contributions at Whatfix and FusionCharts

Proven ability to design and implement scalable, high-performance solutions that enhance product usability and development efficiency

Built a React-based design system that standardized UI components, improved design consistency, and accelerated development speed by 30%, reducing redundancy and effort across engineering teams

Built and optimized the FusionCharts JavaScript library, making it faster and more efficient

Skilled in technical leadership, mentoring, and teamwork, helping teams grow and deliver successful projects

Focused on building scalable solutions that align with business goals, and drive innovation

Overview

16
16
years of professional experience

Work History

Senior Technical Lead (E5 Engineer)

Whatfix
Bengaluru
06.2020 - Current
  • Led and mentored a cross-functional engineering team, ensuring alignment on project goals and fostering a culture of continuous learning and growth
  • Provided technical leadership and guidance, enabling team members to achieve personal and professional development milestones
  • Worked closely with product managers, designers, and stakeholders to align technical execution with business goals
  • Facilitated regular meetings to ensure clear communication, prioritize tasks, and manage timelines efficiently
  • Designed and built a flexible theming system for Whatfix widgets (Popups, Flows, SmartTips, etc.), allowing users to easily customize the UI to match their brand
  • Created Navi, a React-based component library for Whatfix's design principles and accessibility standards, accelerating development by 30% and improving consistency across products
  • Automated the integration of Storybook for interactive component development, securely publishing within the company's network
  • Led the creation of a fully automated Chromatic visual testing pipeline to ensure consistent UI across all components by detecting visual regressions and interaction issues
  • Automated the migration of legacy code to Navi components, improving maintainability and scalability
  • Defined and implemented comprehensive testing strategies, including unit tests with React Testing Library and Jest, screenshot tests, and automated testing frameworks, and used Chromatic for visual testing to catch UI inconsistencies, ensuring high product reliability and significantly reducing manual testing efforts
  • Streamlined development workflows by setting up Bitbucket pipelines for automated testing and deployment of Storybook, reducing manual intervention and improving deployment efficiency
  • Led the migration of Google Web Toolkit (GWT) to React, significantly modernizing the codebase, improving application performance, debugging processes, and enhancing developer productivity
  • Spearheaded hiring initiatives, evaluating candidates for technical skills and cultural fit, assembling a strong and collaborative team

Tech. Lead

FusionCharts
Kolkata
10.2009 - 05.2020
  • Rebuilt the entire FusionCharts JavaScript library from scratch after Apple deprecated Flash in 2009
  • Led the development and release of FusionCharts, ensuring continuous improvements in performance and usability
  • Led the modernization of FusionCharts by transitioning to ES6 modularity, improving performance and scalability
  • Designed a highly configurable animation engine, enhancing the smoothness and efficiency of data visualizations
  • Spearheaded multiple FusionCharts releases, ensuring stable and feature-rich updates
  • Architected the data model for FusionTime, a time-series data visualization tool, and contributed to its overall system design
  • Created a modular build system for FusionCharts by writing custom Webpack plugins, significantly reducing file size and improving load times
  • Built and maintained plugins for React, Angular, Vue, and Svelte, expanding FusionCharts' compatibility with modern web frameworks
  • Established Continuous Integration (CI) pipelines with automated testing, optimized builds, and streamlined release processes, improving software stability
  • Led a team of 12–15 engineers, fostering collaboration, innovation, and technical excellence
  • Actively involved in hiring and mentoring engineers, helping build a highly skilled and motivated team
  • Played a key role in defining the roadmap for FusionTime by gathering client feedback, conducting market research, and aligning product features with user needs

Education

B.Tech - CSE

Millia Institute of Technology
Purnea, Bihar
01.2008

Higher Secondary -

Marwari College
Bhagalpur
01.2001

Secondary -

Bihar School Examination Board
Patna
01.1999

Skills

  • JavaScript
  • HTML
  • CSS
  • TypeScript
  • SVG
  • VML
  • React
  • Angular
  • Vue
  • Svelte
  • D3
  • NodeJS
  • Express
  • MongoDB
  • REST API

Phone

+91, 9903696288

Timeline

Senior Technical Lead (E5 Engineer)

Whatfix
06.2020 - Current

Tech. Lead

FusionCharts
10.2009 - 05.2020

B.Tech - CSE

Millia Institute of Technology

Higher Secondary -

Marwari College

Secondary -

Bihar School Examination Board

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Rohit Kumar