Looking for a job

Sankalp User

@sankalpuser3

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I build full-stack fintech and AI products with measurable performance improvements.

India

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What I'm looking for

I'm looking to build impactful full-stack products, especially in fintech or AI, where I can work across frontend, backend, and infrastructure while learning from strong engineering teams.

I built production features for CreditSea’s fintech lending platform, serving 200K+ users and generating $20M+ ARR across frontend, backend, and infrastructure.

I reduced backend search latency by 86%, from 14 seconds to 2 seconds, by redesigning query logic, optimizing MongoDB indexes, and adding Redis caching. I also integrated CRIF, Digitap, Surepass, Karza, Cashfree, Razorpay, and BBPS for KYC, verification, credit reports, and payments.

At Writecream, I built an AI-powered rich text editor for premium customers, with real-time suggestions, context-aware autocomplete, and formatting workflows using Quill.js and third-party AI APIs.

I also build AI-driven products including CodeVision, TruthLens, and FinSage. As Tech Lead at GDG MAIT, I bring strong problem-solving practice from 550+ LeetCode problems and hackathon placements.

Experience

Work history, roles, and key accomplishments

Software Engineer Intern

CreditSea

Jul 2025 - Apr 2026 (9 months)

Engineered production features for a fintech lending platform serving 200K+ users and generating $20M+ ARR. Reduced backend search latency by 86% through query redesign, MongoDB indexing, and Redis caching.

Next.js NodeJS ExpressJS MongoDB Redis REST APIs KYC Integration Payment Gateways Fintech

Full Stack Intern

Writecream

Dec 2024 - May 2025 (5 months)

Built an AI-powered rich text editor for premium customers, integrating real-time content suggestions with Quill.js and third-party AI APIs. Designed scalable backend services using Node.js and Express.js.

NodeJS ExpressJS Quill.Js AI APIs Document Processing REST APIs