Himanshu Gautam

Full stack blockchain developer

Blockchain India Exp: 4 years

Creation of token and private sale for blockchain based carbon credits ecosystem

Design and deploy the smart contracts for a token which will be the native currency of a carbon credits platform on Polygon network and have a private sale for the token. The token will be mineable, burnable, and will have role access controls with upgradeability. The token will be built based on the ERC20 standard.

Use Cases

  1. Allow social logins and whitelisting of users for the private sale
  2. Allow users to deposit funds and get IMPT tokens in exchange during the private sale.
  3. Wallet integration (Metamask)

Technology involved

  1. Smart contracts on Solidity
  2. Frontend on React JS
  3. Backend on Node JS

Items excluded from the scope

  1. All NFT minting and trading
  2. Development of other use cases of the project - shop creator tool, social platform, carbon marketplace and shopping platform

Estimated timeline

4 weeks

Total amount


Estimated Price


  • Scope review and milestones confirmation $800.00
  • Smart contract development $1,600.00
  • Creation of APIs $2,000.00
  • Frontend integration $2,000.00
  • Testing and going live $1,600.00
Scope of services
  • Smart contract logic and deployment
  • Creation of blockchain APIs
  • Database management
  • Whitelisting
  • Private sale
  • Wallet integration

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