Lead Site Reliability Engineer - Imunify Reliability Platform

Role overview

Accountabilities

• Define SLIs, ownership, measurement, tiering, SLOs, and error budgets for approximately 70 product components.
• Develop a reliability taxonomy covering availability, latency, fleet reachability, configuration convergence, security-control efficacy, artifact delivery, and telemetry health.
• Design telemetry collection for customer-hosted agents and cloud services while balancing push collection, sampling, privacy, data quality, and cardinality.
• Extend instrumentation across Python, Go, and Rust components with product engineering teams.
• Consolidate dashboards, queries, and reporting into a smaller observability platform and retire low-value tooling.
• Implement SLO-driven alerting with multi-window burn-rate principles and clear page, ticket, and dashboard classifications.
• Give every production alert an owner, failure mode, and actionable runbook, with ongoing alert-quality reviews.
• Build ownership and escalation routing, establish severity and handoff practices, and strengthen incident command and blameless postmortems.
• Coach engineering squads to own operational responsibilities and deliver measurable reliability improvements during the first year.

Requirements

• Substantial production engineering or SRE experience, including defining and implementing an SLO framework.
• Strong Python skills and the ability to read and modify Go or Rust code.
• Hands-on experience with Prometheus/OpenMetrics, Grafana, Alertmanager-class systems, and ClickHouse or equivalent technologies.
• Experience debugging distributed systems on bare metal and long-lived hosts, beyond Kubernetes-centric operations.
• Production-scale configuration management and CI/CD experience with tools such as Ansible, GitLab CI, or Jenkins.
• Understanding of push-based telemetry, sampling, clock skew, partial reporting, and privacy on customer-managed infrastructure.
• Excellent written and asynchronous communication, strong engineering judgment, and a pragmatic approach to reliability.
• Security-product experience, monitoring frameworks, OpenTelemetry, eBPF, Sentry, AI-assisted development, or Kubernetes experience is advantageous.

Work arrangement

• The environment is remote-first with flexible working hours and asynchronous collaboration across multiple time zones.
• The role is described as fully remote and can be performed from anywhere worldwide.

Benefits

• The package includes 24 paid vacation days, 10 paid national holidays, unlimited sick leave, and private medical insurance support.
• Additional benefits include co-working reimbursement, gym and sports reimbursement, professional development, mentoring, knowledge sharing, and potential patent-idea rewards.