---
title: "Sparsh Agarwal - Senior Software Engineer in Bengaluru | Tal"
description: "Meet Sparsh Agarwal, Senior SWE @ Coindcx · Payments Infrastructure & Web3 Systems based in Bengaluru. AI stack includes claude code, codex, and cursor."
image: "https://tal.club/meet/sparsh-agarwal/share-image"
---

# Sparsh Agarwal on Tal

## Headline

Senior SWE @ Coindcx · Payments Infrastructure & Web3 Systems

## About

I build backend systems for high\-stakes financial infrastructure \- payment pipelines, banking integrations, and the services that keep them reliable at scale\. At CoinDCX, I work on our fiat deposit and withdrawal flows, focused on reliability, partner integrations, and API performance\. In the last quarter alone, I helped drive deposit success rate from 72% to 76\.6% through partner diversification and retry logic improvements, scaled our direct banking integrations from 1 to 3 partners, and architected a backup withdrawal partner to keep fiat off\-ramps available during primary partner downtime\. Before moving into payments, I spent two years building CoinDCX's Web3 developer platform\. I architected OktoKit \(a modular multi\-chain SDK for EVM, Solana, and Aptos\), was a core developer on the Okto SDK, and shipped the AA Wallet Service with Paymaster support aligned to EIP\-4337\. That background still shapes how I think about reliability, developer experience, and designing systems that external partners integrate against\. I care most about the parts of payments infrastructure users never see \- the retry logic, partner failovers, and p99 tails that determine whether a deposit actually lands\. Outside work, I spend time with family, watch movies, or walk at night\. Also writing occasionally at sparshagarwal\.xyz\. Reach me at sparshaga25@gmail\.com\.

## Location

Bengaluru

## AI stack

claude code

codex

cursor

hermes agent

opencode

## Work experience

Senior Software Engineer at CoinDCX, Apr 2025 \- Present · 1 yr 5 mos, Bengaluru, Karnataka, India, Payments Infrastructure \- Helped drive deposit success rate from 72% to 76\.6% in a single quarter through payment partner diversification, flow optimization, and improved retry logic\. \- Established direct banking connections for fiat deposit flows, scaling from 1 to 3 bank partners and boosting customer conversion by 20% with improved reliability and uptime\. \- Architected a backup withdrawal partner integration, ensuring continued fiat off\-ramp availability during primary partner downtime\. \- Profiled and optimized hot\-path APIs, reducing P95 latency by over 70% and improving platform responsiveness at scale\. \- Contributed to ongoing migration from legacy monolith to microservices architecture, shipping critical infrastructure upgrades alongside the platform team\. Web3 Developer Platform \- Architected OktoKit, a modular Web3 SDK with first\-class EVM support and extended compatibility for Solana and Aptos; ships with plug\-and\-play adapters for React, Vue, and React Native\. \- Refined SDK APIs with 10\+ external dApp partners, aligned with EIP\-4337, EIP\-6963, WalletConnect, and Wagmi standards\.

Software Engineer at CoinDCX, Apr 2024 \- May 2025 · 1 yr 2 mos, Bengaluru, Karnataka, India, \- Core developer on Okto SDK \(200K\+ DAU\), enabling wallet and identity integration across EVM, Solana, and Aptos; shipped JS SDKs for React and React Native\. \- Built the AA Wallet Service with Paymaster support in Go and Node\.js, integrated with Biconomy and aligned with EIP\-4337\. \- Designed and shipped a production\-grade Client Dashboard using Next\.js, TanStack Query, and shadcn/ui for SDK partners to manage sessions and credentials\. \- Built telemetry and debugging infrastructure with real\-time dashboards for SDK usage insights and faster client support resolution\. \- Mentored junior engineers and supported developers at ETHIndia, ETHDenver, and Unfold hackathons\.

Associate Software Engineer at CoinDCX, Jun 2023 \- May 2024 · 1 yr, India, \- Built WalletConnect integration, in\-app DApp browser \(Flutter\), and backend WalletConnect Service \(Go\) for Okto Wallet, supporting EVM and Solana transaction flows for 100K\+ users\. \- Developed the first\-generation JavaScript SDK for third\-party DApp integration, laying the groundwork for the Okto developer platform\. \- Implemented Wallet ID using PolygonID \(Iden3 Protocol\), handling both frontend and backend integration for decentralized identity\.

Software Engineering Intern at CoinDCX, Jan 2023 \- Jun 2023 · 5 mo, Bengaluru

Software Engineer Intern at Raccord IT Solutions, LLP, May 2021 \- Oct 2021 · 6 mos, Jaipur, Rajasthan, India, \- Built and maintained the frontend of an Admin Dashboard for Organization Connect, an enterprise connectivity platform, using React, TypeScript, and Material UI\. \- Collaborated with a team of 5 interns under senior engineering supervision; contributed to feature scoping and frontend documentation\.

## Education

Bachelor of Technology \- BTech, Computer Science, JK Lakshmipat University, Jaipur

[View the original profile](https://tal.club/meet/sparsh-agarwal)

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "Person",
      "@id": "https://tal.club/meet/sparsh-agarwal#person",
      "name": "Sparsh Agarwal",
      "url": "https://tal.club/meet/sparsh-agarwal",
      "image": "https://tal.club/meet/sparsh-agarwal/profile-photo.jpg",
      "description": "Meet Sparsh Agarwal, Senior SWE @ Coindcx · Payments Infrastructure & Web3 Systems based in Bengaluru. AI stack includes claude code, codex, and cursor.",
      "jobTitle": "Senior Software Engineer",
      "worksFor": {
        "@type": "Organization",
        "name": "CoinDCX"
      },
      "hasOccupation": {
        "@type": "Occupation",
        "name": "Senior Software Engineer"
      },
      "homeLocation": {
        "@type": "Place",
        "name": "Bengaluru"
      },
      "alumniOf": [
        {
          "@type": "EducationalOrganization",
          "name": "JK Lakshmipat University, Jaipur"
        }
      ],
      "knowsAbout": [
        "claude code",
        "codex",
        "cursor",
        "hermes agent",
        "opencode"
      ],
      "mainEntityOfPage": {
        "@id": "https://tal.club/meet/sparsh-agarwal#webpage"
      }
    },
    {
      "@type": "ProfilePage",
      "@id": "https://tal.club/meet/sparsh-agarwal#webpage",
      "url": "https://tal.club/meet/sparsh-agarwal",
      "name": "Sparsh Agarwal on Tal",
      "description": "Meet Sparsh Agarwal, Senior SWE @ Coindcx · Payments Infrastructure & Web3 Systems based in Bengaluru. AI stack includes claude code, codex, and cursor.",
      "dateModified": "2026-09-09T03:59:36.582Z",
      "isPartOf": {
        "@id": "https://tal.club/#website"
      },
      "mainEntity": {
        "@id": "https://tal.club/meet/sparsh-agarwal#person"
      },
      "primaryImageOfPage": {
        "@type": "ImageObject",
        "url": "https://tal.club/meet/sparsh-agarwal/profile-photo.jpg",
        "contentUrl": "https://tal.club/meet/sparsh-agarwal/profile-photo.jpg",
        "caption": "Sparsh Agarwal profile photo on Tal"
      },
      "inLanguage": "en-IN"
    }
  ]
}
```