Software Engineer - Solana at Rain Financial

About the Company Rain makes the next generation of payments possible across the globe. We’re a lean and mighty team of passionate builders and veteran founders. Our infrastructure makes stablecoins usable in the real-world by powering card transactions, cross-border payments, B2B purchases, remittances, and more. We partner with fintechs, neobanks, and institutions to help them launch solutions that are global, inclusive, and efficient. You will have the opportunity to deliver massive impact at a hypergrowth company that is funded by some of the top investors in fintech, crypto, and SaaS, including Sapphire Ventures, Norwest, Galaxy Ventures, Lightspeed, Khosla, and several more. 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 Solana programs 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 Solana programs end-to-end — from development through deployment and maintenance Build robust, scalable backend services that interact with Solana, EVM, 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 Solana ecosystem, including its programming model, tooling, and best practices Strong proficiency in Rust Solid understanding of smart contract security patterns and common vulnerability classes Experience with Node.js and backend systems 2–10+ years of engineering experience; compensation will be calibrated accordingly Nice to Have Fintech experience — neobank or card issuing background gets extra brownie points. 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 at least 10 days off. Flexible working ☕ We support a flexible workplace. If you feel comfortable at home, please work from home. If you’d like to work with others in an office, feel free to come in. We want everyone to be able to work in the environment in which they are their most confident and productive selves. New Rainmakers will receive a stipend to create a c