Aman S.
Lead Full-Stack Engineer (10+ Yrs) | Fintech, Web3 and Crypto-Fiat
I build production-grade systems, not just MVPs. As a Lead Full-Stack Engineer with 10+ years of experience, I specialize in architecting scalable, secure, and high-performance applications for fintech startups and global enterprises. I am not the developer you hire to "patch a bug"; I am the technical partner you hire to ship a product that can handle millions of dollars in transactions. Why clients trust me: Deep Domain Expertise: I served as the Lead Engineer at Fin3, building valid settlement rails connecting US Banks (UTB, FirstBank) to blockchain networks. I know how to write code that meets strict regulatory and security standards. Full-Stack Fluency: From pixel-perfect React/Next.js frontends (optimized for core web vitals) to robust Node.js/Python backends, I own the entire stack. High-Velocity Execution: I leverage advanced AI-augmented workflows (Claude/Cursor) to deliver features 2x faster than traditional developers without compromising code quality. Core Tech Stack: Frontend: React, Next.js, TypeScript, Tailwind CSS, Lottie (Animations) Backend: Node.js, NestJS, Python (FastAPI/Django), Supabase Web3: Ethers.js, Wagmi, Smart Contract Integration Infrastructure: AWS, Docker, CI/CD (GitHub Actions) Recent Wins: Architected a crypto-fiat settlement platform enabling 24/7 instant transfers for US banks. Engineered the rendering pipeline for LottieFiles, used by millions of designers worldwide. Built real-time dashboards for fleet management, logistics processing, and high-frequency telematics data. If you need a senior engineer who communicates clearly, works autonomously, and delivers "first-time-right" code, let’s talk.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.2k
Billed in all: $10,564$11k
$619 in the last 6 months
Across 5 contracts
Earnings, last 30 days
Skill rankings: Top 13% in Angular 10
Ranked by MRR among everyone on Upwork with the skill.
- #50Angular 10389 freelancers · 🇮🇳 #21Top 13%🇮🇳#21 of 199
- #321Agile Software Development1,618 freelancers · 🇮🇳 #46Top 20%🇮🇳#46 of 248
- #1,046DevOps4,403 freelancers · 🇮🇳 #198Top 24%🇮🇳#198 of 938
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- #2,201Front-End Development8,892 freelancers · 🇮🇳 #422Top 25%🇮🇳#422 of 1,711
- #6,448Node.js25,795 freelancers · 🇮🇳 #1,673Top 25%🇮🇳#1,673 of 7,119
- #6,817Web Design26,714 freelancers · 🇮🇳 #1,072Top 26%🇮🇳#1,072 of 4,227
- #8,035React33,075 freelancers · 🇮🇳 #2,015Top 24%🇮🇳#2,015 of 8,537