Lead Site Reliability Engineer - Imunify Reliability Platform

Lead Site Reliability Engineer – Imunify Reliability Platform

Join a cutting-edge security-focused organization as the **Lead Site Reliability Engineer** for the Imunify Reliability Platform—a groundbreaking opportunity to architect and refine the reliability framework for a large-scale, mission-critical product. In this **greenfield leadership role**, you will define operational excellence from the ground up, ensuring seamless performance, security, and resilience across approximately **70 critical components**, spanning cloud services and customer-hosted agents. This is your chance to shape the future of reliability engineering in a high-impact, security-centric environment while driving measurable outcomes that directly enhance customer trust and system integrity.

As the **first-of-its-kind SRE leader**, you will collaborate closely with engineering leads and senior stakeholders to establish industry-leading **Service Level Indicators (SLIs), Service Level Objectives (SLOs), and error budgets**, ensuring proactive detection of silent security-control degradation before it escalates into widespread disruptions. Your work will define the **telemetry, monitoring, and alerting infrastructure**, fostering a culture of reliability and operational accountability. This is not just about maintaining systems—it’s about **building a self-healing, observable, and resilient platform** that adapts to evolving threats and scalability demands.

Key Responsibilities

Your role will encompass a broad spectrum of strategic and technical responsibilities, including but not limited to:

• Define and Implement a Robust Reliability Framework: Establish **meaningful SLIs and SLOs** for all 70+ product components, working collaboratively with engineering squads to define ownership, measurement tiers, and error budgets that align with business and security objectives.
• Develop a Comprehensive Reliability Taxonomy: Create a structured taxonomy covering **service availability, latency, fleet reachability, security-control efficacy, artifact delivery, and telemetry pipeline health**—ensuring every metric is independently verifiable and resistant to manipulation by the failures it monitors.
• Architect a Scalable Telemetry Pipeline: Design and build a **high-performance telemetry collection system** for both cloud services and customer-hosted agents, balancing **push-based sampling, privacy constraints, data quality, and cardinality** to support real-time observability without overhead.
• Enhance Instrumentation Across Critical Languages: Collaborate with product engineering teams to extend **Prometheus/OpenMetrics-based instrumentation** in **Python, Go, and Rust**, ensuring comprehensive visibility into system behavior and performance.
• Optimize Observability Platforms: Consolidate existing dashboards, queries, and reporting mechanisms into a **leaner, more reliable observability stack**, retiring redundant tooling to eliminate operational noise while maximizing actionable insights.
• Implement SLO-Driven Alerting: Develop **symptom-based, multi-window alerting** with **burn-rate principles**, ensuring alerts are **clear, actionable, and classified** by severity—with defined owners, documented failure modes, and runbooks for every production incident.
• Foster Alert Quality and Ownership: Establish **ongoing alert-quality practices**, including periodic reviews, measurable alert actionability, and deliberate removal of unnecessary alerts to reduce alert fatigue and improve incident response.
• Build a Machine-Readable Escalation Model: Create a **scalable ownership and escalation framework** that routes incidents efficiently across **global time zones**, ensuring follow-the-sun support, clear severity definitions, and seamless handoffs.
• Strengthen Incident Response and Postmortems: Implement **blameless postmortem practices** with reliable timelines, ownership tracking, and actionable follow-through to prevent recurrence, while coaching engineering squads to **embrace operational ownership** rather than relying on centralized support.
• Drive Measurable Reliability Outcomes: Deliver **tangible results within the first year**, including full SLI ownership, comprehensive production telemetry, tiered alerting adoption, and a **significant reduction in silent security-control degradation detection time**—directly improving customer trust and system resilience.

Why This Opportunity Stands Out

This is more than a job—it’s a **chance to pioneer reliability engineering in a security-first environment**. You will:

• Work in a **remote-first, async-driven culture** where **technical excellence and measurable impact** take precedence over process overhead.
• Collaborate with **top-tier engineering leads** to shape the **reliability culture** of a major security product.
• Leverage **cutting-edge technologies** like **Prometheus, Grafana, Alertmanager, ClickHouse, and distributed systems debugging** to solve complex, real-world challenges.
• Contribute to a **platform that proactively detects and mitigates security risks**, ensuring customers remain protected in an evolving threat landscape.
• Be part of a **high-performing team** that values **ownership, accountability, and continuous improvement**—where every decision drives tangible business value.

If you are a **visionary SRE with a passion for building resilient, observable systems**, this is your opportunity to **leave a lasting impact** in one of the most critical areas of modern cybersecurity. Join us in defining the future of reliability—where **technical depth meets strategic vision**.