React Jobs in Web3

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Realm
$200k - $275k
United States New York US

This *** All Star Founding Team *** backed by some of the biggest names in the internet 👀 👀👀 is building something ambitious at the edge of consumer finance and predictive markets. Still under the radar, but already backed by industry heavyweights with $12M pre-seed funding, we’re assembling a founding engineering team to take this from 0 → 1.


If you’ve ever wished you could have joined early at the likes of OpenSea, Robinhood Crypto, or Coinbase — this is that moment.


What you’ll be doing

  • Architecting and building the core systems of a next-gen trading & prediction platform
  • Working hands-on with Go (Golang) for backend services and Solidity for smart contracts
  • Experimenting rapidly, iterating on prototypes, and scaling what works
  • Designing for high performance, security, and reliability from day one

Tech stack you’ll touch

  • Core: Go, Solidity, TypeScript
  • Smart contract tooling: Hardhat, Foundry
  • Infra: AWS / GCP, Kubernetes, Docker, Terraform
  • Data & scaling: Postgres, Redis, Kafka, real-time event streams
  • Frontend: React, Next.js, Web3 libraries (ethers.js, wagmi)
  • Testing & DevOps: CI/CD pipelines, monitoring, on-chain testing frameworks

What we’re looking for

  • Deep experience in Go (backend) and Solidity (Ethereum smart contracts)
  • Track record building in high-volume or mission-critical environments
  • Comfortable operating in a high-ambiguity, high-experimentation 0→1 setting
  • Strong fundamentals in distributed systems, consensus, and/or cryptography a plus
  • Curiosity and grit — you’ll be solving problems no one has fully solved before

Logistics

  • Work primarily in EST timezone
  • Open to candidates across the Americas and Europe
  • Competitive comp + meaningful equity

This is your chance to shape the foundations of a product at the frontier of finance and crypto — while working alongside a founding team with the backing and credibility to win.


If you’re ready to build where the future of finance meets predictive markets, we’d love to talk.

What does a React developer in web3 do?

A React developer in the context of web3 is a developer who is using the React JavaScript library to build user interfaces for decentralized applications (dApps) that run on the Ethereum blockchain

These dApps often use smart contracts to facilitate transactions and other interactions on the Ethereum network

Overall, the role of a React developer in web3 involves using your skills in React development to help build cutting-edge decentralized applications that leverage the power of the Ethereum blockchain

As a React developer in web3, some of your responsibilities might include:

  • Integrating the dApp with the Ethereum blockchain. This might involve using tools like web3.js and Ethers.js to connect to the Ethereum network and interact with smart contracts.
  • Building the user interface for a dApp using React. This could involve creating components for the various elements of the dApp, such as buttons, forms, and other input elements.
  • Implementing features that are specific to decentralized applications, such as handling cryptocurrency transactions and displaying data from the blockchain in a user-friendly way.
  • Collaborating with other members of the development team, such as blockchain engineers and designers, to ensure that the dApp functions properly and meets the needs of the end users.