I will develop a prediction app, polymarket clone, decentralized finance platform

D
domdacosta
D
domdacosta
Dom da Costa
develop a prediction app, polymarket clone, decentralized finance platform
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develop a prediction app, polymarket clone, decentralized finance platform

About this gig

I Will Create a Prediction Marketplace, Prediction DApp, Polymarket, Kalshi, Predict App

Are you looking to launch a prediction marketplace or prediction DApp similar to Polymarket, Kalshi, or PredictIt?

I specialize in building secure, scalable, and user-friendly prediction platforms for Web3 and DeFi. From market creation and smart contract logic to wallet integration and real-time data feeds, I deliver end-to-end prediction platform development tailored to your goals.

What I Will Build for You

  • Custom prediction marketplace, DApp, or predict app (Polymarket/Kalshi-style or fully custom)
  • YES/NO, multiple-outcome, or custom market logic
  • Smart contract development (secure, gas-optimized)
  • Wallet integration (MetaMask, WalletConnect, etc.)
  • Oracle & real-world data integration (Chainlink, APIs)
  • Token-based or stablecoin trading systems
  • User dashboards, admin panels, and analytics
  • Scalable backend and cloud deployment
  • Mobile-responsive, modern UI/UX design
  • MVP build with Phase-2 expansion readiness

Why Work With Me

  • Proven experience in prediction marketplaces & DeFi platforms
  • Clean, production-ready codebase
  • Security-focused smart contract architecture
  • Clear communication and milestone-

  • Website type

    • Business

  • Programming language

    • HTML & CSS
    • JavaScript
    • PHP
    • Python
    • Ruby/RoR

  • Website features

    • Marketing
    • Payment
    • Forum
    • Social media
    • Customer support
    • Shipping
    • Inventory
    • Analytics
    • Video
    • Form
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Get to know Dom da Costa

Dom da Costa

Blockchain and dapp developer

  • FromBulgaria
  • Member sinceFeb 2026

  • Languages

    English, Spanish, French, German
Dom is a developer with over two decades of experience delivering digital products at scale. He's worked remotely and in digital agencies alike, and is always proactively evolving by trying out new ideas and technologies. He is fluent in UX design and bases his decisions on facts, stats, and analytics, and he collaborates well with colleagues and across disciplines.

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