Backend Engineer, Data

About The Company

Helius is at the forefront of building essential infrastructure for the Solana blockchain ecosystem, enabling developers to create innovative, crypto-powered applications with ease. Our mission centers on accelerating the development of internet capital markets by providing fast, intuitive, and scalable tools for on-chain development. Trusted by a diverse range of clients—from early-stage startups to industry giants like Coinbase, Phantom, and Jupiter—Helius offers APIs, webhooks, and indexing solutions that power a wide array of decentralized applications. Supported by prominent investors such as Haun Ventures, Founders Fund, and Foundation Capital, our team is committed to performance, simplicity, and scalability in decentralized systems. We foster a collaborative environment driven by our core values, as outlined in our Helius Manifesto, emphasizing innovation, integrity, and impact.

About The Role

We are seeking a highly experienced Staff Engineer to take ownership of our streaming infrastructure and products. This pivotal role involves defining the technical vision, making architectural decisions, and solving complex challenges associated with our most critical and rapidly expanding product offerings. The successful candidate will not only lead development efforts but also influence the direction of our streaming systems, ensuring they meet the high standards of performance, reliability, and scalability required by our users. You will collaborate closely with engineers, product managers, and founders to shape the future of our streaming capabilities, including filtered streams, webhooks, and innovative features that enable developers to build more powerful applications on Solana. This role offers an exciting opportunity to impact the entire ecosystem by building resilient, high-throughput systems that serve thousands of clients worldwide.

Qualifications

• 8+ years of backend engineering experience with a proven track record in building large-scale, production systems
• Deep proficiency in Rust or an equivalent systems programming language
• Strong performance-oriented engineering instincts, with knowledge spanning software, Linux internals, networking, and hardware
• Hands-on experience with streaming technologies such as Kafka, NATS, Flink, or Kinesis
• Proficiency in operating and maintaining production databases like Postgres, ClickHouse, RocksDB, or similar
• Operational experience owning and maintaining reliable production systems with real customers
• Excellent communication and writing skills, capable of driving technical consensus across teams
• High ownership mentality, with the ability to work effectively in fast-paced, dynamic environments

Responsibilities

• Architect and lead the development of high-throughput, low-latency streaming systems that underpin core products
• Define and drive the technical roadmap for streaming features, including filtered streams, webhooks, and new developer capabilities
• Lead system design discussions and make architectural decisions across the full technology stack—software, hardware, and networking
• Establish standards for operational excellence, focusing on system reliability, incident response, and observability
• Mentor and develop engineering team members, fostering technical growth and collaboration
• Collaborate cross-functionally with Sales, Support, and infrastructure teams to ensure product scalability and customer satisfaction
• Identify, troubleshoot, and resolve complex issues that span multiple systems and layers
• Stay ahead of industry trends and incorporate best practices into system design and development

Benefits

• High-impact work that influences millions of users across the Solana ecosystem
• Opportunity to build reliable, scalable distributed systems and user experiences
• Leadership roles with ownership of critical initiatives and architecture decisions
• Remote-first, flexible working environment to promote work-life balance
• Competitive salary and meaningful equity participation
• Generous vacation policies and wellness budgets to support personal well-being
• Support for continuous learning, professional development, and travel opportunities

Equal Opportunity

Helius is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, national origin, age, disability, or any other legally protected status. We believe that a diverse team fosters innovation and drives our success, and we welcome applicants from all backgrounds to join us in shaping the future of decentralized applications.