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Case study 13

MSquare Market

MSquare Market is a blockchain-based digital asset marketplace built at MUST Company in Seoul as part of the MSQUARE ecosystem. Users connect a crypto wallet, browse and trade digital assets, follow their transactions and manage their accounts. Behind it, an admin panel lets staff manage listings and assets, manage users, monitor transactions and follow sales and activity on dashboards. I worked on the frontend, mostly on the admin panel.

No public site or source code. The architecture and the decisions behind it are described below.

At a glance

Status: Completed

Role
Frontend engineer
Type
Enterprise
Timeline
May 2024 – Jun 2026
Domain
FinTech
Focus
Blockchain, Digital Asset Marketplace, Crypto Wallets, Admin Dashboards
Stack
  • Next.js
  • TypeScript
Architecture: Marketplace and adminMarketplace to Crypto wallet (connect); Crypto wallet to Blockchain (sign); Marketplace to Marketplace API (browse); Admin panel to Marketplace API (manage); Marketplace API to Dashboards (aggregate)connectsignbrowsemanageaggregateUIMarketplaceNext.jsEXTCrypto walletconnect · signEXTBlockchaintransactionsUIAdmin panelNext.jsSVCMarketplace APIlistings · usersJOBDashboardssales · activity
Fig. 13 MSquare Market architecture: Marketplace and adminSolid: request · dashed: async · dashed box: external

What MSquare Market does

  • Crypto wallet connection
  • Transaction flows for buying and transferring digital assets, with status tracking
  • Marketplace pages for browsing assets
  • User account pages with owned assets and history
  • Admin panel to manage listings and assets
  • Admin user management
  • Transaction monitoring for staff
  • Sales and activity dashboards and reports

The problem

A digital asset marketplace has two audiences. Buyers need wallet connection and transactions that make on-chain steps understandable, and staff need to see and control everything that happens on the marketplace.

Approach

The user-facing app wraps wallet connection and each transaction in clear, step-by-step UI with visible status. The admin panel brings listings, users and transactions into one place, with dashboards for sales and activity, so staff can act without touching the chain directly.

Key decisions

  1. D1

    Status at every step

    Transactions show where they are, from signing to confirmation, so users aren't left guessing while the chain catches up.

  2. D2

    Admin as an operations tool

    Listings, users and transactions are managed from one panel, with reports alongside, instead of separate scripts or spreadsheets.

  3. D3

    Responsive throughout

    Marketplace and account pages work on phones as well as desktops, where most wallet users are.

Highlights

  • Developed responsive frontend features for MSquare Market, a blockchain-based digital asset marketplace, implementing crypto wallet connection flows and transaction UIs.

My contributions

  • Worked as a frontend engineer at MUST Company, mostly on the admin panel
  • Built admin screens for managing listings, assets and users, monitoring transactions, and dashboards and reports
  • Implemented crypto wallet connection flows and transaction UIs
  • Built responsive marketplace and user account pages in Next.js and TypeScript

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