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

About the Company

Rain is the global stablecoin payments platform for enterprises, neobanks, platforms, developers, and AI agents. Our technology allows partners to move, store, and use stablecoins instantly and compliantly through global payment cards, rewards, on/offramps, wallets, and cross-border rails. As both a Visa and Mastercard Principal Member, Rain issues cards that work at more than 175 million merchant locations in over 220 countries and territories. Built natively for stablecoins and trusted by more than 100 organizations worldwide, Rain delivers secure, scalable infrastructure that makes money move freely and instantly around the world.

You will have the opportunity to deliver massive impact at a hypergrowth company backed by some of the top investors in fintech, crypto, and SaaS. In January 2026, we closed a $250M Series C led by ICONIQ, valuing Rain at $1.95B, with Sapphire Ventures, Dragonfly, Bessemer Venture Partners, Galaxy Ventures, FirstMark, Lightspeed, Norwest, and Endeavor Catalyst also participating. If you're curious, bold, and excited to help shape a borderless financial future, we'd love to talk.

Our Ethos

We believe in an open and flat structure. You will be able to grow into the role that most aligns with your goals. Our team members at all levels have the freedom to explore ideas and impact the roadmap and vision of our company.

About the Role

You'll 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 — processing high transaction volumes, continuously ingesting on-chain data, and navigating the unique complexity of each chain, with scalability and reliability engineered in from day one.

What you'll do

• 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

What we're looking for

• 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

Nice to have, but not mandatory

• Fintech experience — neobank or card issuing background gets extra brownie points

• Experience deploying across multiple EVM-compatible chains (Ethereum, Arbitrum, Base, Polygon, etc.)

• Familiarity with upgradeable contract patterns and proxy architectures

Things that enable a fulfilling, healthy, and happy experience at Rain:

Unlimited time off 🌴 Unlimited vacation can be daunting, so we require Rainmakers to take 10 days minimum for themselves.

Flexible working ☕ We support a flexible workplace – work from home, come into an office, or both. We want everyone to work in an environment where they're their most confident and productive selves. New Rainmakers receive a stipend to set up a comfortable home workspace.

Easy to access benefits 🧠 For US Rainmakers, we cover 95% of your health, dental, and vision plan costs and 90% for your dependents, plus a 100% company-subsidized life insurance plan.

Retirement goals💡 Plan for the future with confidence. We offer a 401(k) with a 4% company match.

Equity plan 📦 Every Rainmaker gets an equity option plan so we all benefit from our success.

Health and Wellness 📚 High performance begins from within. Rainmakers receive a monthly stipend to be used for eligible health and wellness spending like gym memberships/fitness classes, massages, acupuncture - whatever recharges you!

In-office meals 🍜 Rainmakers working from the office enjoy lunch and dinner on us, covered with a DoorDash credit.

Team summits ✨ Summits play an important role at Rain. Time together helps us build relationships and a common destiny. Expect team and company offsites, both domestic and international.