Staff Backend Engineer, Data Streaming at Helius Labs

<h1><strong>About Helius</strong></h1><p style="min-height:1.5em">Helius is building the core infrastructure for Solana - empowering developers to create the next generation of crypto-powered applications. Our mission is to accelerate the development of internet capital markets by making it easier, faster, and more intuitive to build on-chain.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">Thousands of teams - from early-stage startups to industry leaders like Coinbase, Phantom, and Jupiter - rely on Helius APIs, webhooks, and indexing tools to power their products. Backed by Haun Ventures, Founders Fund, and Foundation Capital, we’re a small, senior team obsessed with performance, simplicity, and scalability in decentralized systems.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">Read our <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.helius.dev/blog/manifesto"><u>Helius Manifesto</u></a> to see how we work and what we value.</p><h1><br /><strong>About the Role</strong></h1><p style="min-height:1.5em">We're looking for a Staff Engineer, Data Streaming who knows how these systems work under the hood - not just how to tune them, but how to build them from scratch. You'll own the technical direction for Helius' streaming infrastructure, which delivers real-time Solana state changes to thousands of developers and institutions worldwide. This is a role for someone who has operated in low-latency, high-uptime environments where reliability is the product - trading systems, financial infrastructure, or similar - and who brings that same obsession to customer-facing systems at scale. You'll work closely with engineers and founders to define what we build and how we build it.</p><p style="min-height:1.5em"></p><h1><strong>About the Team</strong></h1><p style="min-height:1.5em">The Data Streaming team builds and operates products like <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.helius.dev/laserstream"><u>Laserstream</u></a> that deliver real-time Solana state changes to thousands of developers and institutions around the world. Latency, reliability, and throughput aren't just engineering concerns here — they're the product. The team moves fast, owns a large surface area, and sits in the critical path of the company's growth.<br /></p><h1><strong>What You'll Do</strong></h1><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Architect and build high-throughput, low-latency streaming systems from the ground up — not just optimize what exists</p></li><li><p style="min-height:1.5em">Drive the technical roadmap for streaming, including filtered streams, next-generation webhooks, and new capabilities that expand what developers can build on Solana</p></li><li><p style="min-height:1.5em">Lead system design discussions and make architectural decisions across the full stack: software, hardware, and networking</p></li><li><p style="min-height:1.5em">Set standards for oper