Principal Site Reliability Engineer

Job Summary

The Platform Ops team within Cloud Ops is responsible for the reliability, scalability, and modernization of Digi Cert’s cloud infrastructure. As a Principle SRE, you will own the intersection of software engineering and operations—driving automation-first practices, reducing toil, and accelerating our cloud transformation across AWS, Azure, and GCP environments.

You will be a technical force multiplier: raising reliability standards across the organization, defining SLOs that matter, and building the internal platforms and tooling that enable product teams to ship with confidence.

• Define, implement, and own SLIs, SLOs, and error budgets for critical platform services
• Lead blameless post-mortems and drive systemic reliability improvements across the platform
• Design and implement observability pipelines (metrics, logs, traces) using tools such as Splunk, Prometheus, Grafana, or Open Telemetry
• Participate in on-call rotation and serve as an incident commander for P0/P1 events
• Architect and execute migration strategies from legacy infrastructure to cloud-native patterns (containers, serverless, managed services)
• Champion adoption of Kubernetes, service mesh, and managed cloud services (EKS, GKE, AKS)
• Evaluate and introduce emerging cloud technologies that improve availability, cost efficiency, and developer experience
• Partner with architecture and security teams to embed reliability and compliance into platform design

• Build and maintain infrastructure-as-code using Terraform across multi-cloud environments
• Develop internal tooling, self-service platforms, and golden‑path templates that reduce operational burden for development teams
• Automate operational workflows including provisioning, scaling, patching, and secret rotation
• Contribute to and maintain CI/CD pipelines (Git Hub Actions) to enable safe, frequent deployments

• Mentor mid‑level engineers on SRE principles, distributed systems, and infrastructure best practices
• Collaborate cross‑functionally with product, security, and compliance teams to deliver on platform roadmap commitments
• Document architectural decisions, runbooks, and platform standards; raise the engineering bar through code and design reviews

• 5+ years of experience in SRE, platform engineering, or infrastructure engineering roles
• Deep proficiency in at least one major cloud provider (AWS, GCP, or Azure) with working knowledge of multi‑cloud environments
• Strong software engineering skills in Python, Go, or Bash; comfortable writing production‑grade automation and tooling
• Hands‑on Kubernetes experience: cluster operations, workload management, networking (CNI/service mesh), and security (RBAC, pod security)
• Infrastructure‑as‑code expertise with Terraform or equivalent; experience with Git Ops workflows
• Proven experience designing and operating observability systems and responding to production incidents at scale
• Strong understanding of networking fundamentals: DNS, TLS/PKI, load balancing, and zero‑trust networking concepts

• Experience in PKI, certificate lifecycle management, or security‑adjacent infrastructure
• Familiarity with compliance frameworks such as SOC 2, FedRAMP, or ISO 27001 in cloud environments
• Prior experience driving cloud migration or modernization programs at scale
• Contributions to open‑source infrastructure or platform projects
• AWS/GCP/Azure professional‑level certifications (e.g., AWS Solutions Architect Professional, CKA/CKS)

In your first 90 days, you’ll have a deep understanding of our platform’s reliability posture, contributed to at least one automation or modernization initiative, and be a trusted voice in incident response. Within a year, you’ll have measurably reduced toil, improved SLO attainment across key services, and delivered at least one major platform capability that enables product teams to move faster.

• Greenfield modernization: we are actively migrating workloads and building new platform capabilities—you’ll shape the architecture, not just maintain it
• Engineering‑first culture with a…