Senior Software Engineer, Backend

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

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.