Principal Site Reliability Engineer (m/f/x)

As the Principal Engineer championing Resiliency, you'll be the driving force behind how commercetools prepares for, responds to, and learns from operational incidents at scale. Our customers rely on us for mission-critical commerce infrastructure, including during their highest-stakes moments of the year, like Black Friday. You'll own the discipline of resiliency end-to-end: mature incident management, strong operational visibility, data-driven process improvement, and organization-wide readiness for peak-traffic events.

Responsibilities

Standardize incident management across the company; Enhance system visibility with real-time metrics, dashboards, and signals; Drive data-backed improvements by identifying process gaps and partnering with product engineering teams; Own peak-event readiness for traffic spikes like Black Friday; Lead cross-team initiatives to identify resilience gaps and deliver technical outcomes; Collaborate with engineering leadership, Staff Engineers, and domain-specific Principal Engineers; Foster knowledge sharing around resiliency and operational excellence

Requirements

7+ years driving incident management/operational excellence; 5+ years leading org-wide resiliency and reliability initiatives; Proven track record of managing and scaling systems for high-stakes, multi-team operational events (e.g., Black Friday, major launches); Strong ability to analyze metrics to diagnose technical issues and measure process improvements; Ability to evaluate both technical bugs and the organizational/human dynamics behind them; Demonstrated success managing large-scale initiatives that span multiple engineering teams in an Agile environment; Fluent English with exceptional written and verbal communication skills; High self-awareness, a strong customer focus, and a passion for mentoring others and learning new technologies

Nice to have

Experience running technical training or onboarding

Benefits

Comprehensive health benefits for you and your dependents including access to OpenUp for personalized mental health support; Learning and development opportunities including annual learning budget, self-paced learning platforms, language training, coaching, mentorship, and leadership programs; Family Leave Plus additional fully paid weeks of parental leave on top of government-provided leave; Equity participation program