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Staff Backend Engineer
Helius Sunlink PV. Lead the technical direction for Gatekeeper as the unified entry point for Helius traffic, with an emphasis on p50/p99 latency and tail reliability.
About the role
Key responsibilities & impact- Lead the technical direction for Gatekeeper as the unified entry point for Helius traffic, with an emphasis on p50/p99 latency and tail reliability.
- Design and implement routing and load balancing strategies across regions and backend pools, including failover behavior and graceful degradation.
- Improve connection handling end-to-end: TLS termination, keepalives, pooling, timeouts, backpressure, and request/response streaming behavior.
- Build robust, operator-friendly observability: SLOs, dashboards, alerts, and “is it healthy?” views that make issues diagnosable fast.
- Partner with internal service teams to define and enforce contracts (timeouts, retries, error mapping, capacity signals), and reduce systemic failure modes.
- Drive hardening work across security and abuse controls (auth failure behavior, rate limiting / caps enforcement, request validation).
- Own production operations for Gatekeeper: incident response, on-call improvements, runbooks, and post-incident follow-through.
- Mentor engineers and raise the bar on performance engineering, operational rigor, and code quality.
Requirements
What you’ll need- Significant experience building and operating high-throughput backend systems in production (proxies, gateways, distributed services, or infra-heavy platforms).
- Deep understanding of networking fundamentals and HTTP behavior (TLS, TCP, connection reuse, proxies, load balancers, timeouts).
- Strong performance engineering skillset: profiling, benchmarking, and making latency/throughput tradeoffs with rigor.
- Track record of leading ambiguous, cross-team projects and shipping durable systems.
- Operational excellence: you have owned services with real on-call responsibility, and you make them easier to run over time.
- Excellent communication: you can write clear design docs, align stakeholders, and make decisions legible.
Benefits
Comp & perks- 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.
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
routing strategiesload balancingTLS terminationconnection handlingprofilingbenchmarkingperformance engineeringincident responseobservabilitysystem design
Soft Skills
mentoringcommunicationcross-team collaborationdecision makingoperational excellence