Blockchain Developer (P-107)

San José
Permanente
Tiempo completo

Hace 14 días
Postúlese fácilmente

SMASH, Who we are?We are agents for tech professionals in Costa Rica and Colombia that help them build careers in the United States.We believe in long-lasting relationships with our talent. We invest time getting to know them and understanding what they seek as their professional next step.We aim to find the perfect match. As agents, we pair our talent with our US clients, not only by their technical skills but as a cultural fit. Our core competency is to find the right talent fast.We purposefully move away from the “contractor” or “outsourcing” type of relationship. Our clients don’t want contractors or “just a service.” Neither does our talent.Our Benefits

Wellness Coverage
Remote Work
Birthday day off
Recognition and rewards system
Referrals Program
Business skill coaching
English classes for Smashers and relatives
Learning opportunities

This is a remote position for Costa Rica and Colombia.
This position is Remote to work with a US Company; you will require to have Citizenship or a work permit from Costa Rica or Colombia to apply for this role. Responsibilities:

Develop, audit, and deploy Ethereum smart contracts.
Handle NFT minting, prize distribution, staking, and reward mechanisms.
Create an ERC-20 token for the in-game economy and ERC-721 NFTs for achievements.
Optimize smart contracts for gas efficiency and scalability.
Integrate wallet connectivity (MetaMask, WalletConnect, Coinbase Wallet, Trust Wallet, Phantom, Binance Wallet).
Ensure secure blockchain interactions and testing on testnets before mainnet deployment.

Tech Stack / Tools:

Solidity, Hardhat
Ethereum blockchain (ERC-20 & ERC-721)
OpenZeppelin Contracts
Web3.js / Ethers.js
Alchemy / Infura
IPFS, Pinata
Wallet integration APIs (MetaMask, WalletConnect, etc.)
Moralis API (on-chain event tracking, authentication)

Smash