EVM Solidity Engineer — Scalable On-Chain Infrastructure

raincards.xyz; New York (NY); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Unlimited time off

Flexible working (hybrid or remote)

Health and vision coverage (US)

401(k) with match

Equity plan

Home workspace stipend

Office meals and team events

Job summary

Rain is building a global stablecoin payments platform. You will design, build, and maintain EVM smart contracts and the backend services that integrate with them, while contributing to shared infrastructure across EVM, Solana, and Stellar. Our platform powers crypto-backed card products with high transaction volumes and real-time processing.

You will help shape the technical and product roadmap, drive secure and gas-efficient patterns, and ship capabilities quickly to our customers.

Qualifications

• Deep expertise in the EVM ecosystem, including smart contract development, tooling, and best practices.
• Strong proficiency in Solidity.
• Experience with development frameworks such as Hardhat or Foundry.
• Solid understanding of smart contract security patterns, common vulnerability classes, and gas optimization.
• Experience with Node.js and backend systems.
• 2–10+ years of engineering experience; compensation will be calibrated accordingly.

Responsibilities

• Own and evolve EVM smart contracts end-to-end — from development through deployment and maintenance.
• Build robust, scalable backend services that interact with EVM, Solana, and Stellar networks.
• Scale our on-chain infrastructure to support millions of users globally — powering transactions, data ingestion, and real-time processing.
• Play a central role in shaping the technical and product roadmap.
• Drive architectural decisions in a fast-moving, rapidly evolving product.
• Ship new capabilities quickly and iteratively to our customers.

Skills

EVM ecosystem

Solidity

Hardhat

Foundry

Smart contract security

Node.js

Backend systems

Engineering experience

Tools

Hardhat

Foundry

Job description

Rain is building a global stablecoin payments platform. You will design, build, and maintain EVM smart contracts and the backend services that integrate with them, while contributing to shared infrastructure across EVM, Solana, and Stellar. Our platform powers crypto-backed card products with high transaction volumes and real-time processing.

You will help shape the technical and product roadmap, drive secure and gas-efficient patterns, and ship capabilities quickly to our customers.