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I'm a Full Stack Developer with 4+ years building on-demand marketplace platforms using React, Node.js, MongoDB, and Stripe—the core QuickHands stack. I design and ship features that drive revenue, security, and scalability while keeping a strong focus on user experience. In my recent role at PaniChefs, I built Stripe Connect provider payouts, real-time booking with Socket.IO, geospatial proximity discovery, in-app wallets, and native iOS/Android apps, plus robust CI/CD and security enhancements. I enjoy collaborating cross-functionally to deliver end-to-end product verticals.…I'm a Full Stack Developer with 4+ years building on-demand marketplace platforms using React, Node.js, MongoDB, and Stripe—the core QuickHands stack. I design and ship features that drive revenue, security, and scalability while keeping a strong focus on user experience. In my recent role at PaniChefs, I built Stripe Connect provider payouts, real-time booking with Socket.IO, geospatial proximity discovery, in-app wallets, and native iOS/Android apps, plus robust CI/CD and security enhancements. I enjoy collaborating cross-functionally to deliver end-to-end product verticals.

Siddhartha Gupta

Back-End Developer, Full Stack Developer, Web Developer, +2

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I'm a Full Stack Developer with 4+ years building on-demand marketplace platforms using React, Node.js, MongoDB, and Stripe—the core QuickHands stack. I design and ship features that drive revenue, security, and scalability while keeping a strong focus on user experience. In my recent role at PaniChefs, I built Stripe Connect provider payouts, real-time booking with Socket.IO, geospatial proximity discovery, in-app wallets, and native iOS/Android apps, plus robust CI/CD and security enhancements. I enjoy collaborating cross-functionally to deliver end-to-end product verticals.…I'm a Full Stack Developer with 4+ years building on-demand marketplace platforms using React, Node.js, MongoDB, and Stripe—the core QuickHands stack. I design and ship features that drive revenue, security, and scalability while keeping a strong focus on user experience. In my recent role at PaniChefs, I built Stripe Connect provider payouts, real-time booking with Socket.IO, geospatial proximity discovery, in-app wallets, and native iOS/Android apps, plus robust CI/CD and security enhancements. I enjoy collaborating cross-functionally to deliver end-to-end product verticals.

Available to hire

I’m a Full Stack Developer with 4+ years building on-demand marketplace platforms using React, Node.js, MongoDB, and Stripe—the core QuickHands stack. I design and ship features that drive revenue, security, and scalability while keeping a strong focus on user experience.

In my recent role at PaniChefs, I built Stripe Connect provider payouts, real-time booking with Socket.IO, geospatial proximity discovery, in-app wallets, and native iOS/Android apps, plus robust CI/CD and security enhancements. I enjoy collaborating cross-functionally to deliver end-to-end product verticals.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Hindi

Advanced

Spanish; Castilian

Intermediate

Work Experience

Full Stack Mobile Developer at Panichefs

August 1, 2025 - Present

Migrated 800+ translation keys across 120+ files to a JSON-based internationalization framework using custom automation scripts, GitHub Actions, and background agents (1-day turnaround). Implemented Twilio-based SMS OTP verification with rate-limiting to secure authentication (2 days). Built location services with Google Maps API and MongoDB GeoJSON storage for address validation and proximity matching. Hardened file security with a two-bucket AWS architecture using signed URLs and dynamic bucket selection. Deployed a legacy site on AWS EC2, migrated Panichef Academy to an existing domain with Stripe Payment Links, and delivered a full-stack subscription flow with multi-language support. Authored an end-to-end food safety certificate management system with secure file uploads and automated verification.

Agile Developer | Frontend Software Developer In Test at SAP

May 1, 2024 - October 12, 2025

Contributed to an upgraded internal UI library, resolving over 1,000 test case issues under a challenging one-month deadline, in collaboration with global teams. Automated verbose log analysis and code ownership identification with a Python script to reduce development time. Volunteered as Developer on Duty, bridging incidents between Product Support, developers, and customers. Designed and refined manual and automated tests (Jest and Jasmine) for client-side components and new features; performed proactive manual testing for early regression detection. Collaborated with UX teams worldwide to ensure accessibility and theming, and proposed CSS optimizations to reduce maintenance time.

Back End Developer (Node.js) at FitBasix

May 1, 2022 - October 12, 2025

Built social media post features using MongoDB, Node.js, and Amazon S3; improved data loading times via pagination and Redis caching. Implemented multilingual support through custom MongoDB queries and Redis-based caching.

Computer Science Tutor at Self-employed

May 1, 2022 - October 12, 2025

Taught Java for CPEN221 and CPSC 210; guided students in Dr.Racket for CSPSC 110 and boolean algebra for CSPSC 121 to build foundational CS skills.