Karan Rawat
@karanrawat3
I build scalable Node.js APIs, payment systems, campaign automation, and real-time customer engagement platforms.
IndiaWhat I'm looking for
I've built scalable backend systems at Ezimax Technologies, improving REST API response times by 30% and delivering payments, real-time updates, CRON automation, and FCM notifications.
For Knowwu, I independently delivered APIs for loyalty, wallets, subscriptions, KYC, analytics, QR business cards, and campaign automation. I integrated Razorpay, Cashfree, Meta WhatsApp Business APIs, Petpooja, AWS S3, and Socket.io to support transaction-driven customer engagement.
On MyIncite, I built Express.js APIs, improved MongoDB search speed by 50% through indexing, and reduced reported bugs by 40%. I work primarily with Node.js, Express.js, MongoDB, PostgreSQL, REST APIs, and event-driven architecture.
Experience
Work history, roles, and key accomplishments
Backend Developer
Ezimax Technologies Pvt. Ltd.
Aug 2021 - Sep 2026 (5 years 1 month)
Developed scalable RESTful APIs using Node.js and Express.js, improving API response time by 30%. Automated recurring tasks via CRON jobs, integrated payment gateways, implemented WebSocket for real-time updates, and designed an FCM-based push notification system.
Education
Degrees, certifications, and relevant coursework
Government Polytechnic Kashipur
Diploma, Information Technology
2017 - 2020
Completed a three-year diploma in Information Technology, gaining foundational knowledge in computing and software development.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Website
knowwu.comSalary expectations
Job categories
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