Hi, my name is

Jay Kanjia

ASoftware Engineer

Senior Software Engineer specializing in scalable backend architectures, Medusa.js commerce plugins, distributed caching systems, and production AI platforms.

Contact me

Scroll Down

INTRO

About Me

A quick overview of my engineering leadership, system architecture experience, and background.

Engineering Philosophy & Background

I am a Sr. Software Engineer with 4+ years of experience architecting resilient distributed systems, enterprise commerce backends, and production AI agent workflows. My engineering focus centers on deep Medusa.js customization (authoring open-source npm plugins, media adapters, fulfillment providers, payment gateways, and ERP synchronization modules), high-scale database performance engineering (reducing complex PostgreSQL queries across 200,000+ SKUs from ~40s to <6s with Redis caching), and autonomous LLM orchestration using Python and FastAPI. I champion Clean Architecture, SOLID principles, zero-downtime releases, and developer mentorship — aligning engineering excellence directly with measurable business velocity and high-concurrency production reliability.

Core Strengths

4+ years architecting high-concurrency backend services & distributed systems

Medusa.js specialist: Custom plugins, media adapters, fulfillment & payment providers

Redis caching & PostgreSQL optimization: Slashed 200k+ SKU query latency from ~40s to <6s

Production AI systems: FastAPI multi-agent workflows, LLM function calling, and RAG

Primary Tools:

TypeScript

Python

Node.js

SQL

Explore Experience & Background

Skills

Skills & Toolkit

Core engineering toolkit & architectural competencies:

TypeScriptNode.jsPythonFastAPIMedusa.jsPostgreSQLRedisNext.jsPayload CMSDockerAWSAI Agents / LLMs

Portfolio

Featured Projects

A selection of distributed backend services, Medusa.js plugin ecosystems, and production AI platforms.

Haira – AI Hiring Platform

Internal Product · Technical Lead (Backend, AI & Full-Stack)

Architected an end-to-end AI-powered recruitment platform designed to automate high-volume candidate screening, semantic resume evaluation, and dynamic conversational technical interviews. Built with asynchronous FastAPI microservices, OpenAI/Claude tool-calling agents, PostgreSQL vector embeddings (pgvector), and a responsive Next.js frontend.

PythonFastAPIAI Agents & LLMsPostgreSQL (pgvector)Redis & CeleryNext.jsTypeScriptDocker

CloudQuarks Marketplace

Redington Group · Hexalytics

Developed scalable backend architecture for an enterprise B2B/B2C cloud marketplace facilitating vendor onboarding, catalog management, multi-tier subscription billing, and order workflows across 200,000+ store-specific SKUs.

Node.jsMedusa.jsPostgreSQLRedisDockerAWS (EC2 & ElastiCache)

Medusa.js Open Source & Enterprise Plugin Suite

Published NPM Packages · Enterprise Commerce Adapters

Architected, developed, and published modular Medusa.js ecosystem plugins on npm and GitHub — including the @jaykanjia/medusa-file-cloudinary media storage adapter, custom fulfillment provider plugins, payment gateway adapters, Payload CMS connectors, and automated ERP inventory synchronization engines.

Medusa.jsNode.jsTypeScriptnpmPostgreSQLRedisPayload CMSDocker

Yogateria

Headless B2B & B2C Commerce Engine

Architected and built a decoupled headless B2B and B2C commerce platform featuring sub-second page delivery, instant search indexing, custom dynamic pricing tiers, and seamless integration between Medusa.js commerce services and Payload CMS editorial management.

Medusa.jsNext.js (App Router)Payload CMSPostgreSQLMeilisearchTypeScript

Gold & Gems

Enterprise Premium Jewellery Commerce Platform

Enterprise jewellery commerce platform featuring real-time multi-branch inventory synchronization, dynamic daily bullion spot-price calculation, complex gemstone attribute filtering, and high-concurrency checkout security.

Node.jsMedusa.jsNext.jsGraphQLPostgreSQL

View All Projects

GET IN TOUCH

Have a project in mind or want to collaborate?

Feel free to reach out. I'm always open to discussing backend architecture, Medusa.js customization, AI platform integrations, and engineering leadership opportunities.

Say Hello