I'm SIVAGNANA SOWNDARYA R, a Frontend Engineer specializing in React and React Native, passionate about building scalable, high-performance, user-centric applications. As a co-founder of Mistake.cool, I’ve shipped real-time features and led products from concept to production. If you need more information or want to hear some crazy stories, please reach out.

SIVAGNANA SOWNDARYA R

I'm SIVAGNANA SOWNDARYA R, a Frontend Engineer specializing in React and React Native, passionate about building scalable, high-performance, user-centric applications. As a co-founder of Mistake.cool, I’ve shipped real-time features and led products from concept to production. If you need more information or want to hear some crazy stories, please reach out.

Available to hire

I’m SIVAGNANA SOWNDARYA R, a Frontend Engineer specializing in React and React Native, passionate about building scalable, high-performance, user-centric applications.

As a co-founder of Mistake.cool, I’ve shipped real-time features and led products from concept to production. If you need more information or want to hear some crazy stories, please reach out.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert

Language

Tamil
Advanced
English
Advanced

Work Experience

Co-Founder & Frontend Engineer at mistake.cool
January 1, 2024 - Present
Co-founded Mistake.cool; built and launched cross-platform mobile app (Android & iOS) with React Native; designed 50% of UI screens in Figma (UI & UX); implemented real-time chat/audio/video using WebSockets and LiveKit; implemented authentication flows (multi-account, organization-based access); integrated payment UIs with Stripe and Razorpay; built scalable file upload, notifications, and background services; extended product with web (Vite + React) and desktop (Electron); created custom charts (bar, pie, area) with Rough.js; led onboarding, product demos, and sales; managed app deployment including iOS code signing and Electron packaging.
Associate Product Engineer at Temenos
December 1, 2021 - December 1, 2023
Built components for banking entity migration; optimized APIs and improved response performance; designed and enhanced UI/UX flows for better usability and consistency; contributed to frontend performance and stability in a banking environment.
Program Analyst Trainee (Intern) at Cognizant
March 1, 2021 - December 1, 2021
Trained in JavaScript, testing, and UI development; built a railway ticket booking web app using HTML, CSS, and JavaScript.

Education

Bachelor of Engineering in ECE at St. Joseph's Institute of Technology
April 1, 2017 - May 1, 2021

Qualifications

Add your qualifications or awards here.

Industry Experience

Computers & Electronics, Software & Internet