Posted Aug 22, 2026

Lead Site Reliability Engineer (Performance & Scalability) | Contract | Remote US

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Description: • Establish performance, throughput, latency, and capacity baselines for critical platform workflows. • Define and maintain SLOs, error budgets, performance budgets, dashboards, alerts, and reliability thresholds. • Instrument and analyze the full request path across services, infrastructure, databases, networking, caches, queues, DNS, and third-party dependencies. • Identify system bottlenecks and lead cross-functional remediation efforts with engineering teams. • Build capacity models that show current limits, emerging constraints, and the cost of additional scale. • Lead load, stress, soak, spike, failure, and recovery testing in representative environments. • Develop realistic demand scenarios for major customers, partnerships, pilots, and high-volume events. • Drive architecture hardening, graceful degradation, dependency-failure planning, and resilience improvements. • Partner with Test Automation and Scalability Engineering on automated performance testing, regression coverage, and production release gates. • Own technical readiness assessments for major pilots, partnerships, and production launches. • Create operational runbooks for scale-up events, incidents, rollback, recovery, and dependency failures. • Lead performance and reliability investigations during incidents and incorporate lessons into future engineering work. • Communicate infrastructure cost, performance, and reliability tradeoffs to engineering and executive leadership. • Recommend capacity and reliability investments before they become production constraints. Requirements: • Significant experience in Site Reliability Engineering, performance engineering, platform engineering, distributed systems, or a closely related discipline. • Experience supporting production systems with meaningful scale, traffic, latency, or availability requirements. • Deep understanding of observability, performance analysis, capacity planning, and reliability engineering. • Strong hands-on experience with cloud infrastructure and production distributed systems. • Deep knowledge of databases, networking, caching, queueing, compute, storage, and common distributed-system failure modes. • Experience defining and operating against SLOs, SLIs, error budgets, and production reliability metrics. • Hands-on experience performing load, stress, soak, scalability, and resilience testing. • Ability to profile systems, diagnose bottlenecks, tune architecture, and work directly with engineering teams to implement improvements. • Experience designing for graceful degradation, dependency failures, recovery, and high-demand scenarios. • Strong incident management and root-cause analysis experience. • Ability to translate technical performance and reliability risks into clear business implications for senior leadership. • Strong judgment around when systems need optimization versus when added complexity is premature. • Experience operating high-scale SaaS, identity, DNS, registry, infrastructure, or other highly distributed platforms (preferred). • Experience creating capacity-cost models and forecasting infrastructure requirements (preferred). • Experience building performance and reliability gates into CI/CD pipelines (preferred). • Experience preparing platforms for major traffic increases from enterprise customers or strategic partnerships (preferred). • Experience leading reliability or performance initiatives across multiple engineering teams (preferred). • Applicants must be authorized to work for any employer in the U.S.; no visa sponsorship is available. Benefits: • Remote work opportunity (#LI-Remote). • Contract employment type. • Equal Opportunity Employer commitment. • Inclusive workplace across all backgrounds and experiences.