Senior Site Reliability Engineer, Fleet Management
MongoDB’s Team Platform Engineering is the SRE department responsible for critical infrastructure and operational functions that support the broader engineering organization. This includes multi-cloud-provider Kubernetes infrastructure, networking, load balancing (public-facing edge and internal service mesh), and observability and alerting systems.
About the role
The Fleet Management team provides the core runtime environment that empowers developers to build and ship products. We manage the end-to-end lifecycle of our Kubernetes fleet, alongside critical components ensuring cluster reliability and security (e.g., CoreDNS, cert-manager, and Gatekeeper). As our infrastructure scales, we are migrating from Terraform-based Infrastructure as Code (IaC) to an Operator-driven lifecycle management model.
This role can be based in our Austin, Boston, Los Angeles, New York City, Raleigh, or San Francisco offices; remotely in the United States; or in our European office in Dublin.
Responsibilities
- Contribute to developing and maintaining a scalable and secure runtime environment on Kubernetes that supports product needs across MongoDB
- Provide internal support for our Kubernetes ecosystem, partnering with engineering teams to solve domain-specific problems
- Participate in a 24/7 on-call rotation to resolve critical issues
- Prioritize blameless post-mortems and dedicate engineering time to systemic fixes to prevent recurring incidents
Requirements
- 6+ years of experience in software development and operating distributed systems
- Proficiency in Go, Python, or a similar language, with a strong commitment to code quality and testing practices (unit, integration, and E2E tests)
- Deep experience using and extending containerization technologies, preferably Kubernetes
- Solid understanding of Linux operating system internals and networking concepts (e.g., filesystems, TCP/IP, DNS, TLS)
- Customer-focused mindset, treating internal developers as primary users
- Strong operational ownership, including debugging complex production issues and driving them to resolution
- Preference for automation over manual processes ("allergic to ops work")
Preferred Qualifications
- Designing and implementing secure, multi-tenant runtime environments from first principles
- Proficiency with Kubernetes ecosystem tools such as Helm, Kustomize, Gatekeeper, Kyverno, CRDs/Operators, CRI, and CSI
- Expertise in cloud infrastructure platforms, including AWS, GCP, or Azure
- Proficiency in provisioning infrastructure using tools like Terraform, Crossplane, and AWS Controllers for Kubernetes (ACK)
- Advanced Linux systems internals and networking concepts specifically relevant to containers, such as namespaces and cgroups
About MongoDB
MongoDB is built for change, empowering customers and employees to innovate at market speed. We’ve redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries. Our unified data platform, the most widely available globally distributed data platform, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. MongoDB Atlas, our cloud-native platform, is the only globally distributed, multi-cloud data platform available across AWS, Google Cloud, and Microsoft Azure. With offices worldwide and over 67,000 customers—including 75% of the Fortune 100 and AI-native startups—we’re powering the next era of software.
Benefits
- Equity and participation in the employee stock purchase program
- Flexible paid time off
- 20 weeks fully-paid gender-neutral parental leave
- Fertility and adoption assistance
- 401(k) plan
- Mental health counseling
- Access to transgender-inclusive health insurance coverage
- Comprehensive health benefits
Pay
MongoDB’s base salary range for this role in the U.S. is $127,000—$249,000 USD.