Senior Site Reliability Engineer, Fleet Management

<p>Platform Engineering is the department within SRE that is responsible for a range of critical infrastructure and operational functions that support the broader engineering organization. Among these are our multi-cloud-provider Kubernetes infrastructure, networking, load balancing (including our public-facing edge and internal service mesh), and observability and alerting systems.</p> <p>The Fleet Management team provides the core runtime environment that empowers our developers to build and ship products to delight our customers. We manage the end-to-end lifecycle of our Kubernetes fleet, alongside the critical components that ensure cluster reliability and security (e.g., CoreDNS, cert-manager, and Gatekeeper). As our infrastructure scales to support new use cases and products, we are spearheading a migration from Terraform-based Infrastructure as Code (IaC) to an Operator-driven lifecycle management model.</p> <p>This role can be based out of any MongoDB U.S. office or remotely within the United States.</p> <h3>Responsibilities</h3> <ul> <li>Contribute to developing and maintaining a scalable and secure runtime environment on top of Kubernetes that supports product needs across MongoDB</li> <li>Provide internal support for our Kubernetes ecosystem, partnering with engineering teams to help them solve domain-specific problems</li> <li>Participate in a 24/7 on-call rotation to resolve critical issues</li> <li>Prioritize blameless post-mortems and dedicate engineering time to systemic fixes, ensuring you aren’t paged for the same issue twice</li> </ul> <h3>You may be a good fit if you</h3> <ul> <li>Have 6+ years of experience in software development and operating distributed systems</li> <li>Are proficient in Go, Python, or a similar language, with a strong commitment to code quality and testing practices (writing unit, integration, and E2E tests)</li> <li>Have deep experience using and extending containerization technologies, preferably Kubernetes</li> <li>Have a solid understanding of Linux operating system internals and networking concepts (e.g., filesystems, TCP/IP, DNS, TLS)</li> <li>Possess a customer focused mindset, treating internal developers as your primary users</li> <li>Have strong operational ownership, including a track record of debugging complex production issues and driving them to resolution</li> <li>Prefer automation over manual processes ("allergic to ops work")</li> <li>We are a small team of software engineers with a strong bias toward building software solutions to eliminate toil</li> </ul> <h3>Strong candidates may also have experience with</h3> <ul> <li>Designing and implementing secure, multi-tenant runtime environments from first principles</li> <li&g