Helius · 2 months ago
Sr. Backend Engineer, Historical APIs
North America
Full-time
Onsite
Mid, Senior Level
3+ years expHelius is building the core infrastructure for Solana, empowering developers to create the next generation of crypto-powered applications. The Sr. Backend Engineer will own meaningful pieces of the stack, focusing on building ingestion, indexing, and retrieval features while improving API performance and reliability.
BlockchainCryptocurrencyDeveloper ToolsSoftware
Responsibilities
Build ingestion, indexing, and retrieval features across our archival systems
Improve API performance and reliability for high-throughput services
Optimize query performance against databases like ClickHouse, Postgres, and RocksDB
Collaborate with senior & staff engineers on caching, scaling, and distributed data patterns
Debug, profile, and maintain production systems for performance
Engage in system design, technical discussions, and long-term planning
Qualification
Required
3+ years of strong backend engineering experience
Experience with Rust (strongly preferred), C++, or an equivalent language
Professional experience with distributed systems, data pipelines, and performance-focused engineering
Familiar with database schema design and optimization patterns for large datasets
Ability to break down complex problems into simple solutions
Relentless curiosity and a drive to dive deep into performance optimizations
Desire for a fast-moving, high-ownership environment
Preferred
Exposure to Solana, blockchain, or web3 infrastructure
Experience with Postgres, ClickHouse, and/or RocksDB
Benefits
Competitive comp & perks
Market-leading salary
Meaningful equity
Generous vacation
Wellness budgets
Support for learning and travel
Company
Helius
Helius accelerates the adoption of crypto-powered software.
11-50 employees
H1B Sponsorship
Helius has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageTotal Funding
$31.25MKey Investors
Foundation Capital
2024-09-19Series B· $21.75M
2024-02-22Series A· $9.5M
2022-08-01Seed
Leadership Team
Liam Vovk
Co-founder & CTO
Recent News
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