SEm 5 BSc CS (AI & ML) student and co-founder of CookOnCall, a live two-sided chef marketplace. I serve as the sole architect and tech lead, building production-grade systems end-to-end with Next.js, NestJS, Flutter, PostgreSQL, and live payments. I’ve delivered two production platforms (CookOnCall and Kalokea) with real payments and zero critical audit findings, handle full-stack architecture, security (JWT/RBAC, webhooks, refunds logic), and infrastructure (Railway/Cloudflare). I also completed prompt engineering certification (Vertex AI) and operate at a junior engineer level—confidently owning delivery, debugging independently, and shipping reliably.…

Arya N Khamar

SEm 5 BSc CS (AI & ML) student and co-founder of CookOnCall, a live two-sided chef marketplace. I serve as the sole architect and tech lead, building production-grade systems end-to-end with Next.js, NestJS, Flutter, PostgreSQL, and live payments. I’ve delivered two production platforms (CookOnCall and Kalokea) with real payments and zero critical audit findings, handle full-stack architecture, security (JWT/RBAC, webhooks, refunds logic), and infrastructure (Railway/Cloudflare). I also completed prompt engineering certification (Vertex AI) and operate at a junior engineer level—confidently owning delivery, debugging independently, and shipping reliably.…

Available to hire

SEm 5 BSc CS (AI & ML) student and co-founder of CookOnCall, a live two-sided chef marketplace. I serve as the sole architect and tech lead, building production-grade systems end-to-end with Next.js, NestJS, Flutter, PostgreSQL, and live payments.

I’ve delivered two production platforms (CookOnCall and Kalokea) with real payments and zero critical audit findings, handle full-stack architecture, security (JWT/RBAC, webhooks, refunds logic), and infrastructure (Railway/Cloudflare). I also completed prompt engineering certification (Vertex AI) and operate at a junior engineer level—confidently owning delivery, debugging independently, and shipping reliably.

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Skills

Experience Level

API
Expert
Docker
Expert
Flutter
Expert
Github
Expert
JavaScript
Expert
TypeScript
Expert
PostgreSQL
Expert
Tailwind
Expert
Redis
Expert
SEO
Expert
SQL
Expert
Prompt Engineering
Expert
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Language

English
Fluent
Gujarati
Fluent
Hindi
Fluent

Work Experience

Freelance Full Stack Developer at Kalokea (Women’s Fashion E-Commerce)
July 1, 2026 - July 31, 2026
Delivered a live D2C e-commerce storefront and a 30+ module admin back office using production-ready Next.js/NestJS stack with PostgreSQL/Supabase and Razorpay. Led a production-readiness audit across 387 source files, fixing high-severity issues before release (payment flow bug, cart/checkout defects, an XSS vector, and missing database migrations). Shipped India-first GST compliance per order (CGST/SGST/IGST) and performed CTO-level audit readiness. Implemented complete SEO and WhatsApp automation alongside the module-rich admin system, enabling self-serve operations for the client.
Freelance Full Stack Developer at Kalokea— Women’s Fashion E-Commerce
July 1, 2026 - July 1, 2026
Delivered a live D2C storefront (20+ customer routes) and a 30+ module admin back-office. Led production-readiness audit across 387 source files with zero critical findings. Identified and resolved multiple high-severity issues prior to customer impact: a payment-flow bug, two cart/checkout defects, one XSS vector, and missing database migrations. Implemented India-first GST compliance per order (CGST/SGST/IGST). Shipped complete SEO and WhatsApp automation alongside the admin panel, enabling self-serve operations for the client.
Co-Founder & Solo Architect / Tech Lead at CookOnCall
March 1, 2026 - Present
Architected and deployed a full production two-sided chef marketplace from scratch with customer, cook, and admin roles. Implemented live Razorpay payments (business-approved), HMAC webhook verification, and tiered refund logic. Designed a 15+ table PostgreSQL schema with row-level security, JWT authentication + RBAC, Bull token refresh handling, and OTP-based session start. Resolved a Redis security incident independently by rotating credentials and migrating Upstash → Railway Redis with zero downtime. Built dynamic visit fee engine based on GPS radius and delivered a Flutter app using Riverpod, Dio, and GoRouter across multiple role flows, plus an email API and WhatsApp business webhooks.
Operations Intern at AlgoVista Analytics
January 1, 2026 - January 1, 2026
Built data dashboards, performed hospital data analysis, and developed pitch decks for enterprise clients in a professional team environment. Delivered competitor research and market analysis reports and applied AI tooling to compress delivery timelines. Completed the internship with full project delivery.

Education

BSc CS — AI & Machine Learning at Indus University, Ahmedabad
January 1, 2024 - January 1, 2027
BSc CS (AI & ML) at Indus University, Ahmedabad
January 1, 2024 - January 1, 2027
BSc CS (AI & Machine Learning) at Indus University, Ahmedabad
January 1, 2024 - January 1, 2027

Qualifications

Google Cloud Skill Badge: Prompt Design in Vertex AI
February 1, 2026 - July 23, 2026
Google Cloud Skill Badge: Prompt Design in Vertex AI
February 1, 2026 - August 10, 2026
Google Cloud Skill Badge: Prompt Design in Vertex AI
February 1, 2026 - August 10, 2026

Industry Experience

Software & Internet, Retail, Healthcare, Financial Services, Education, Computers & Electronics, Media & Entertainment, Professional Services
    CookOnCall – Chef Booking Marketplace Platform

    CookOnCall is a production-ready marketplace connecting customers with verified home chefs through a seamless online booking platform.

    As the technical co-founder, I designed and developed the complete ecosystem, including customer, chef partner, and administrator portals.

    Key Features:
    • Customer dashboard
    • Chef dashboard
    • Advanced admin panel
    • Secure authentication
    • OTP verification
    • Razorpay payment integration
    • Real-time booking workflows
    • Booking management
    • Subscription system
    • Analytics dashboard
    • SEO optimization
    • Mobile-responsive experience

    Tech Stack:
    Next.js, React, NestJS, Node.js, PostgreSQL, Flutter, Supabase, TypeScript, Razorpay, Cloudflare, Railway.

    Project Outcome:
    Built and deployed a scalable multi-role marketplace platform that streamlines chef discovery, booking management, secure payments, and operational workflows through a comprehensive admin system.