[Remote] SR Technical Operations Engineer (Validators & Rollups)

Note: The job is a remote job and is open to candidates in USA. Pearster is a cloud-based infrastructure provider powering the global blockchain ecosystem, seeking a Senior Technical Operations Engineer to support their core systems. The role involves maintaining validators, automating processes, and ensuring the reliability of blockchain operations while working remotely. Responsibilities • Run validators: Deploy, upgrade, and tune EVM/Cosmos/Solana validators; manage client diversity; integrate MEV‑Boost/relays; keep latency & attestation/commit rates high • Protect keys & stake: Implement secure remote signing, slashing protection, and audited change windows; test restores and failovers regularly • Automate everything: IaC modules, golden images, CI/CD, snapshot pipelines, state‑sync validation, replay/load harnesses • Operate K8s at scale: Safe rollouts, HPA tuning, storage choices that won’t bite you; multi‑region capacity and budgets • Lead incidents (SEV0–2): Isolate fast, roll forward/back, publish crisp RCAs, and ship the change that prevents a replay • Limited rollups support: Stand up/upgrade sequencers & batchers, wire DA, manage contracts and params, and keep L1/L2 bridges healthy • Build signal, not noise: SLOs/error budgets, useful dashboards, alerts that only page when users are affected • Code where it counts: Write/extend tools; occasionally patch client bugs that affect production and upstream when needed Skills • Location: Asia (remote-based) • Linux + Kubernetes: Debug real production—networking, storage, rollouts, performance • IaC (Terraform/Helm/Ansible): Ship repeatable infrastructure and zero‑touch deploys • Go or Python (plus Bash): Automate noise away and build small, sharp tools/CLIs • Validator operations: Operate/tune validators and sentry topologies; avoid slashing; manage peers; design backups/snapshots/state‑sync; handle client diversity and version skew • Key management & signing: Vault/HSM/KMS; Web3Signer/TMKMS/Horcrux; slashing-protection DBs; rotation and break‑glass procedures • Observability that matters: SLOs/error budgets; Prometheus/Grafana; alerts that only page when users are affected • Networking & systems depth: DNS/TLS/LB, P2P specifics (ports/NAT/conn limits), kernel/IO tuning, capacity & cost modeling • Rollups (targeted scope): Deploy/operate OP Stack/Arbitrum/Polygon CDK components (sequencer/batcher/indexer), wire DA endpoints (Celestia/Avail/EigenDA/AnyTrust), upgrade safely • Production validator ownership: Ethereum/EVM, Cosmos/CometBFT, or Solana in production • Key security in practice: Vault/HSM/KMS, rotation/backup/restore tested; principle of least privilege enforced • SLO thinking with results: Measurable improvements on alert noise, latency, attestation/commit rates, missed slots, MTTR • Tooling & code impact: Go/Python utilities, IaC modules • K8s & systems trade‑offs: Requests/limits/QoS, storage & kernel tuning, P2P connection limits, canaries/rollbacks • Targeted rollups experience: Shipped/operated OP Stack/Arbitrum/Polygon CDK components and integrated DA endpoints safely Benefits • Work from anywhere with true flexibility and freedom. • 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. Company Overview • Pearster offers cloud consultancy and bridges tech talent gaps, focusing on long-term relationships and specialized cloud services. It was founded in 2020, and is headquartered in Casper, Wyoming, USA, with a workforce of 51-200 employees. Its website is https://pearster.com. Apply tot his job Apply To this Job