Senior Software Engineer, Backend

Helius

Canada

Remote

Who this role is best for

Geared toward senior engineers with systems-level intuition and experience in high-performance infrastructure, comfortable with owning core systems and making architectural decisions.

Best fit for

Senior engineers with a history of building scalable infrastructure in high-performance environments
— “mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more”
Candidates with deep Rust expertise in performance-critical production systems
— “Deep Rust experience in a production, performance-critical environment”
Individuals who have operated in both large and small company environments with adaptability
— “Mix of large and small company experience strongly preferred”

Things to consider

The role demands end-to-end ownership and high expectations for self-driven problem solving
— “own problems end-to-end with minimal direction”
Remote-first flexibility implies a distributed team and potential for asynchronous collaboration
— “Remote-first flexibility: Work where you’re most effective with a flexible, fully distributed team”

How to stand out

Highlight experience with distributed systems and real-time financial infrastructure in your resume
— “Experience with distributed systems, storage engines, or streaming infrastructure”
Showcase your ability to define technical direction and influence product architecture
— “setting technical direction, making architectural decisions that shape the platform for years”
Demonstrate your track record in optimizing high-throughput or latency-sensitive systems
— “Experience debugging and optimizing latency-sensitive or high-throughput systems”
Emphasize your proficiency in Rust, C++, or Go with production-level examples
— “Proficiency in Rust (strongly preferred), C++, or Go”
Include experience in operational excellence, such as observability or incident response
— “Improve operational excellence - observability, incident response, and making systems easier to run”

Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

Designed and built performance-sensitive products
Optimized production systems
Collaborated on architectural and product decisions

Typical background

5+ years of backend engineering experienceExperience with Rust, C++, or GoStrong systems-level intuition

Skills & requirements

Required

Backend EngineeringProduction SystemsPerformance OptimizationDistributed SystemsRustC++GoLatency-sensitive SystemsHigh-throughput SystemsOwnershipOperational Excellence

Preferred

SolanaBlockchain InfrastructureReal-time Financial SystemsOn-call ExperienceLarge And Small Company Experience

Stack & domain

RustC++Go

About the role

Original posting from Helius via Ashby

ABOUT HELIUS
Helius is a leading developer platform on the Solana blockchain, dedicated to inspiring and accelerating the creation of crypto-powered software. Customers like Coinbase, Jupiter, and Phantom use Helius to power their applications on Solana.
We’ve raised over $34m https://www.helius.dev/blog/funding-announcement from Haun Ventures, Founders Fund, Foundation Capital, 6th Man Ventures, Reciprocal Ventures, Chapter One and angel investors including Solana co-founders Anatoly Yakovenko and Raj Gokal, and Balaji Srinivasan. Our team members have previously built mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more.
Read our Helius Manifesto https://www.helius.dev/blog/manifesto to see how we work and what we value.
ABOUT THE ROLE
We're looking for a Staff Backend Engineer to take ownership of one of our core systems - Gatekeeper, Data Streaming, Historical APIs, or Account Index. These are the foundational layers of Helius's infrastructure, operating at the intersection of extreme performance requirements and real-world scale. Each system sits in the critical path of the Solana ecosystem.
At this level, you're not just building - you're setting technical direction, making architectural decisions that shape the platform for years, and raising the bar for everyone around you. You'll work directly with founders and engineering leadership to define what we build and how we build it. Small team, enormous scope, and the expectation that you'll own your domain end-to-end.
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
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
Mix of large and small company experience strongly preferred - you've built the habits and can operate at both speeds
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 and user experiences across distributed infra, high-throughput backends, and modern frontend stacks.
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 shaping the future of decentralized apps.

Source: Helius careers (Ashby)