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Fullstack AI Engineer building scalable, production-grade systems across fintech, blockchain, and SaaS. Skilled in architecting real-time payment pipelines, event-driven microservices, and multi-layer caching handling 50K+ daily transactions with 99.97% uptime. Experienced in React/Next.js, Node.js/NestJS/FastAPI, and AI/ML integration including RAG pipelines and LLM orchestration. Proven track record of improving performance, shipping observability tooling, and mentoring junior engineers. Crypto.com APAC Hackathon World Finalist (Top 5 among 700+ teams).…Fullstack AI Engineer building scalable, production-grade systems across fintech, blockchain, and SaaS. Skilled in architecting real-time payment pipelines, event-driven microservices, and multi-layer caching handling 50K+ daily transactions with 99.97% uptime. Experienced in React/Next.js, Node.js/NestJS/FastAPI, and AI/ML integration including RAG pipelines and LLM orchestration. Proven track record of improving performance, shipping observability tooling, and mentoring junior engineers. Crypto.com APAC Hackathon World Finalist (Top 5 among 700+ teams).

Sambhav Gandhi

Full Stack Developer, Web Developer, DevOps Developer, +3

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Fullstack AI Engineer building scalable, production-grade systems across fintech, blockchain, and SaaS. Skilled in architecting real-time payment pipelines, event-driven microservices, and multi-layer caching handling 50K+ daily transactions with 99.97% uptime. Experienced in React/Next.js, Node.js/NestJS/FastAPI, and AI/ML integration including RAG pipelines and LLM orchestration. Proven track record of improving performance, shipping observability tooling, and mentoring junior engineers. Crypto.com APAC Hackathon World Finalist (Top 5 among 700+ teams).…Fullstack AI Engineer building scalable, production-grade systems across fintech, blockchain, and SaaS. Skilled in architecting real-time payment pipelines, event-driven microservices, and multi-layer caching handling 50K+ daily transactions with 99.97% uptime. Experienced in React/Next.js, Node.js/NestJS/FastAPI, and AI/ML integration including RAG pipelines and LLM orchestration. Proven track record of improving performance, shipping observability tooling, and mentoring junior engineers. Crypto.com APAC Hackathon World Finalist (Top 5 among 700+ teams).

Available to hire

Fullstack AI Engineer building scalable, production-grade systems across fintech, blockchain, and SaaS. Skilled in architecting real-time payment pipelines, event-driven microservices, and multi-layer caching handling 50K+ daily transactions with 99.97% uptime. Experienced in React/Next.js, Node.js/NestJS/FastAPI, and AI/ML integration including RAG pipelines and LLM orchestration.

Proven track record of improving performance, shipping observability tooling, and mentoring junior engineers. Crypto.com APAC Hackathon World Finalist (Top 5 among 700+ teams).

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Fullstack Developer at Ipseity Network

July 1, 2025 - Present

Senior Software Engineer at FintApp

July 1, 2024 - June 30, 2025

* Architected and shipped a real-time payment processing pipeline handling **50K+ daily transactions with 99.97% uptime**, reducing failed payment retries by **38%** through idempotent API design and circuit-breaker patterns. * Built a dynamic KYC/AML verification module integrating third-party identity providers, reducing onboarding drop-off by **27%** and achieving regulatory compliance across **3 jurisdictions**. * Implemented role-based access control with granular permission trees and middleware enforcement, securing **40+ API routes across 20+ internal user roles**. * Reduced CI/CD execution time by **45%** through parallelized test suites, Docker layer caching, and selective builds, improving release cadence from **biweekly to daily**. * Spearheaded observability tooling using structured logging, distributed tracing, and Grafana dashboards, reducing MTTD from **25 minutes to under 4 minutes**.

Software Engineer at FintApp

January 1, 2023 - June 30, 2024

* Designed and built a core double-entry ledger service in **NestJS and PostgreSQL**, underpinning all money movement across the platform and guaranteeing transactional integrity for **50K+ daily journal entries** with zero balance drift in nightly reconciliation. * Launched recurring payments and subscription billing with automated retries, proration, and dunning logic, growing recurring volume to **35% of total transaction throughput within two quarters**. * Shipped a real-time transactions dashboard in **React and Next.js** using WebSocket updates and optimistic UI, replacing legacy polling and reducing perceived load times by **60%**. * Led the backend migration to strict TypeScript and authored **350+ unit and integration tests**, increasing test coverage from **40% to 86%** and cutting production regressions by **50%**.

Frontend Intern at FintApp

September 1, 2022 - July 31, 2023