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AKJ
Open to opportunitiesIndore, M.P., India

Ashish KumarJaiswal

Full Stack Software Engineer. I build production FinTech and Web3 systems — from on-chain vaults to payment rails — serving millions of users with zero downtime.

Years shipping
3+
Users served
2M+
AUM / TVL
$47M+
LeetCode global
Top 5%

02Career

Work experience

Leading Web3 product at Zoth, after shipping backend performance work at Daphnis Labs.

  1. Tech Lead & Senior Full Stack Developer

    Zoth.io · Full-time · Hybrid

    Jan 2023 — PresentBengaluru, India

    • Led Zoth Atlas, a Next.js/React Web3 neobank powering zVault/zOPAL yield products with $47M+ AUM/TVL.
    • Built core Web3 stack: multi-wallet auth (SIWE/NextAuth/Wagmi), on-chain deposit/redeem flows, LiFi bridging, and The Graph analytics.
    • Owned backend reliability: MongoDB server actions, geo-compliance middleware, admin dashboards, Jest/Playwright tests.
    • Set up CI/CD with GitHub Actions, Dockerized builds, AWS ECR/ECS deployments across staging and prod.
    • Developed ZPayments, a beta cross-border payments app with fiat-crypto on-ramp/off-ramp and Web3 integration.
  2. Node.js Developer Intern

    Daphnis Labs · Internship · Remote

    Dec 2022 — Mar 2023Delhi, India

    • Built a scalable multivendor e-commerce backend; cut search API latency by 234ms via MongoDB aggregation.
    • Applied caching and rate limiting on Google Cloud infrastructure.
    • Integrated Razorpay payments and hosted multiple sites on VPS.

03About

How I work

Web3 · Payments · Codebase consulting

With 3+ years of hands-on experience, I specialize in building secure, scalable, high-performing web applications with the MERN stack, Next.js, and TypeScript.

I work across the full surface: smart contract integrations for Web3 products, payment gateway implementations, and codebase consulting — architecture reviews, best practices, and performance work.

  • 01

    Full-stack delivery

    End-to-end product, from schema and APIs to UI, tests, and AWS deploys.

  • 02

    Web3 systems

    Wallet auth, on-chain flows, bridging, and analytics that hold up in production.

  • 03

    Payments

    Fiat-crypto ramps, gateway integrations, and compliance-aware backends.

04Stack

Tools I ship with

Languages, chains, frameworks, and infrastructure I use in production.

Languages

  • JavaScript
  • TypeScript
  • Solidity

Blockchain

  • Ethereum
  • Solana
  • EVM
  • Smart contracts
  • ethers.js
  • Wagmi
  • Hardhat
  • DeFi
  • Liquid staking

Frameworks

  • Next.js
  • React
  • Node.js
  • Express

Cloud & DevOps

  • AWS
  • Docker
  • CI/CD
  • Vercel
  • DigitalOcean
  • Azure

Data

  • MongoDB
  • Redis
  • Prisma

Practice

  • System design
  • Linux
  • GitHub
  • Cursor
  • Claude

05Background

Education & achievements

Education

B.Tech. in Computer Science and Engineering

Institute of Engineering Science, IPS Academy·8.3 CGPA

Aug 2019 — Jun 2023 · Indore, M.P., India

  • Data Structures and Algorithms
  • Object Oriented Programming
  • Database Management Systems
  • Blockchain Technology
  • Computer Networks

Achievements

1,000+ LeetCode problems

Ranked 1960th out of 25,000+ in a global contest — top 5% worldwide.