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Nikunj Wadhwa

@nikunjwadhwa

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Software Development Intern at PrepCentral building an exam-prep platform with Flutter and Go.

India

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At PrepCentral, I'm building an exam preparation platform for Indian government exams, with a Flutter app, Go REST API, and internal admin CMS sharing a PostgreSQL schema. I also built a coin-based gamification system and CMS features for spreadsheet question imports and exports.

At Sprint Travels Pvt. Ltd. (SprintVisa), I built the B2B Agent Portal from scratch, replacing a manual visa application workflow. I implemented wallet payments with Cashfree, atomic PostgreSQL wallet operations, idempotent webhook processing, and invoice delivery via Cloudflare R2.

Experience

Work history, roles, and key accomplishments

Current

Software Development Intern

Current

PrepCentral

Aug 2026 - Present (1 month)

Building a full-stack exam preparation platform for Indian government exams, including a Flutter mobile app, Go REST API backend, and an internal Go-based admin CMS. Implemented a coin-based gamification system and admin CMS with bulk question import/export and sandbox preview mode.

Flutter Go PostgreSQL REST APIs CMS Gamification

Software Development Intern

Sprint Travels Pvt. Ltd.

Feb 2026 - Jul 2026 (5 months)

Built the SprintVisa B2B Agent Portal from scratch, a full-stack web application for visa agents to onboard, discover products, submit applications, and track processing status. Implemented wallet-based payments via Cashfree with atomic operations, idempotent webhooks, promo coins, and invoice delivery via Cloudflare R2.

Fullstack Development Payment Gateway Integration PostgreSQL Cashfree Cloudflare R2 Webhooks