Software Engineer - Solana at Rain Financial

<h1><strong>About the Company</strong></h1><p style="min-height:1.5em">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.</p><p style="min-height:1.5em"></p><h1><strong>Our Ethos</strong></h1><p style="min-height:1.5em">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.</p><p style="min-height:1.5em"></p><h1><strong>About the Role</strong></h1><p style="min-height:1.5em">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.</p><p style="min-height:1.5em"></p><h1><strong>What You'll Do</strong></h1><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Own and evolve Solana programs end-to-end — from development through deployment and maintenance</p></li><li><p style="min-height:1.5em">Build robust, scalable backend services that interact with Solana, EVM, and Stellar networks</p></li><li><p style="min-height:1.5em">Scale our on-chain infrastructure to support millions of users globally — powering transactions, data ingestion, and real-time processing</p></li><li><p style="min-height:1.5em">Play a central role in shaping the technical and product roadmap</p></li><li><p style="min-height:1.5em">Drive architectural decisions in a fast-moving, rapidly evolving product</p></li><li><p style="min-height:1.5em">Ship new capabilities quickly and iteratively to our customers</p></li></ul><h1><br /><strong>What We're Looking For</strong></h1><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Deep expertise in the Solana ecosystem, including its programming model, tooling, and best practices</p></li><li><p style="min-height:1.5em">Strong proficiency in Rust</p></li><li><p style="min-height:1.5em">Solid understanding of smart contract security patterns and common vulnerability classes</p></li><li><p styl