Senior Software Engineer, Backend
At Helius · North America; United States
- Engineering
- Full-time
- Senior
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Where you can work from
Open to North America and the United States
“North America”
From the location.
“United States”
From the job board field.
Which countries count as North America?
Canada, United States.
Not everyone includes Antigua and Barbuda, Bahamas, Barbados, Belize, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Puerto Rico, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and Grenadines, Trinidad and Tobago, so for those we say “Unclear”.
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- Posted
- 19 August 2026
- First seen by us
- 3 November 2026
- Last checked
- 2 hours ago
Job description
From Helius’s job post, as they wrote it.
About Helius
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.
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.
Read the full description
Read our Helius Manifesto to see how we work and what we value.
About the Role
We're looking for a Senior Software Engineer to join one of our core backend teams - Data Streaming, Historical APIs, or Account Index. These are mission-critical systems that handle real-time Solana state changes, historical data at petabyte scale, and high-throughput API traffic for traders, exchanges, and developers worldwide.
You'll own meaningful parts of these systems end-to-end - not just implementing features but making architectural decisions, improving reliability, and pushing performance further. We're a small team, which means your work has outsized impact and your voice carries weight in technical decisions.
What You'll Do
* Design, build, and release novel, performance-sensitive products that transform the developer experience on Solana
* Optimize production systems - profiling, benchmarking, and improving latency and throughput
* Collaborate with staff engineers and founders on architectural and product decisions
* Improve operational excellence - observability, incident response, and making systems easier to run
* Mentor junior engineers and raise the technical bar across the team
What You'll Bring
* 5+ years of backend engineering experience with a track record of shipping production systems at scale
* Strong systems-level intuition - you understand what's happening beneath the abstractions
* Proficiency in Rust (strongly preferred), C++, or Go
* Experience debugging and optimizing latency-sensitive or high-throughput systems
* Demonstrated ability to own problems end-to-end with minimal direction
* High intensity, high ownership - you hold yourself to an exceptional standard
* Prior exposure to engineering cultures that prioritize operational excellence, reliability, and customer impact
* Mix of large and small company experience strongly preferred - you've built the habits and can operate at both speeds
Nice to Have
* Deep Rust experience in a production, performance-critical environment
* Experience with distributed systems, storage engines, or streaming infrastructure
* Familiarity with profiling tools - flamegraphs, perf, valgrind
* Interest in Solana, blockchain infrastructure, or real-time financial systems
* On-call experience and operational ownership of production services
Why Helius?
* High-impact work: Your code will power applications used by millions across the Solana ecosystem, including Coinbase, Jupiter, and Phantom
* Serious engineering: Build fast, reliable systems across distributed infra and high-throughput backends
* Ownership & growth: Lead critical initiatives, influence architecture and product direction, and take on more responsibility as the company scales
* Remote-first flexibility: Work where you’re most effective with a flexible, fully distributed team
* Competitive comp & perks: Market-leading salary, meaningful equity, generous vacation, wellness budgets, and support for learning and travel
* Mission-driven team: Join ambitious builders who move fast, take ownership, and are building infrastructure for internet capital markets
Senior Software Engineer, BackendHelius
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