SR Technical Operations Engineer (Solana)

Spoiler: Your next challenge in serious decentralized tech starts right here. What this Journey Looks Like Pearster is looking for a Senior Technical Operations Engineer (Solana) to help power the core systems of a major US blockchain player. This company is a cloud-based infrastructure provider powering the global blockchain ecosystem. Its mission is to be the indispensable utility that enables companies and innovators worldwide to build next-generation, Web3-enabled businesses and applications using blockchain technology. In this role, you’ll help keep Solana fast and reliable in production , operating validators, RPC, and indexing at scale. You’ll tune hardware, optimize Agave/Jito, develop tools in Go or Python , and lead incident responses —treating keys, latency, and SLOs with production-level precision. Experience patching clients or contributing upstream fixes is a strong plus. What You'll Lead and Build Run validators: Deploy, upgrade, and tune Agave/Jito; minimize missed slots; maintain healthy voting and high leader performance. Operate high-throughput RPC: Set smart connection and queue limits, optimize PubSub fan-out and backpressure, and ensure indexers are efficiently served without starving nodes Extract performance from hardware: Select optimal servers, tune BIOS, kernel, NIC, and NVMe configurations, and validate performance gains through profiling and metrics. Automate everything: Implement reproducible images, manage fleet changes with Terraform and Ansible, create snapshot pipelines, verify state-sync and replay processes, and build automated release systems. Lead incidents (SEV0–2): Quickly isolate issues, execute safe roll-forwards or roll-backs, publish clear root cause analyses, and implement preventive measures to avoid recurrences. Collaborate with the ecosystem: Reproduce complex bugs, share performance traces, and contribute targeted patches upstream when beneficial. Code where it counts: Develop and extend tools for snapshots, replay/load, and state-sync verification; patch client bugs impacting production and upstream relevant fixes when valuable. What You Bring to the Table Location: Europe (remote-based). Linux systems + kernel tuning: NUMA, IRQ affinity, hugepages, cpusets, I/O schedulers, sysctl; filesystem/NVMe layout; BIOS/firmware setup (C-states, power governors); NIC queues/offloads (RSS/RPS/XPS, GRO/LRO/TSO). Hardware performance engineering: Choose and tune CPU/RAM/NVMe/NIC; measure replay throughput, p95/p99 RPC latency, IOPS/egress—and push them lower/faster. Agave/Jito operations: Build from source; manage feature gates and config flags; snapshots (create/consume), ledger compaction/repair/replay health; accounts-DB tuning; version management. Read protocols & surfaces: Operate and tune JSON-RPC (HTTP/WS), gRPC, and PubSub; design connection pools, concurrency limits, caching, timeouts, and backpressure that hold under peak. Transaction sending logic: Understand direct-to-TPU (QUIC) vs RPC sendTransaction; preflight/simulation trade-offs; priority fees and compute budget tuning; leader-schedule awareness. Go or Python (plus Bash): Build small, sharp tools/CLIs (snapshot/restore pipelines, state-sync verification, health checks, replay/load harnesses). Observability that matters: SLOs/error budgets; Prometheus/Grafana; alerts that page only when users hurt (RPC latency, PubSub backlog, missed leader slots, replay stalls). Key management & safety: KMS/HSM/Vault; authority rotations; secure backups; tested DR paths; controlled, auditable change windows. Benefits that Move you Forward. We’re here to amplify your brilliance, not contain it. Work from anywhere with true flexibility and freedom. Earn in USD with compensation that matches your expertise. Recharge confidently with dedicated paid time off. Advance your career with fully covered international certifications. Access coworking spaces worldwide whenever you want a professional setup. Strengthen your English and expand your global reach. Connect and have fun with activities that unite our international team. Feel appreciated with personalized gifts and a thoughtful welcome kit. Grow our community and earn through our referral program. At Pearster, your journey matters, and we’re here to help you go further than you imagined.