Sr Site Reliability Engineer

Realtor.com Careers•Austin, TX

12h•Hybrid

About The Position

Realtor.com® is seeking a Senior Site Reliability Engineer to join its Operations Excellence organization. This role will focus on enhancing the reliability, observability, and operational excellence of the platform infrastructure that serves millions of users. The Senior SRE will be a key technical contributor, implementing best practices, solving complex issues, and supporting over 600 engineers in delivering excellent customer experiences. The position involves working with critical platform systems such as EKS infrastructure, Skyway (CI/CD), Frontdoor (Tyk API Gateway), Pantheon (Apollo GraphQL Federation), and the observability stack. Additionally, the role will contribute to chaos engineering practices and cost optimization initiatives with a measurable return on investment.

Requirements

5+ years in Site Reliability Engineering, DevOps, or Infrastructure Engineering with demonstrated success improving system reliability.
Bachelor’s degree or equivalent experience.
3+ years hands-on experience with AWS (EKS, EC2, RDS, S3, CloudWatch, IAM) and Kubernetes including cluster management.
Proficient programming skills (Python, Go, or Java) with infrastructure automation and Infrastructure as Code experience (Terraform, CloudFormation).
Production experience with observability tools (NewRelic, Datadog, Prometheus, Grafana, Splunk) and distributed systems.
Experience with CI/CD platforms and GitOps workflows (CircleCI, Argo CD, Jenkins); on-call rotation and incident response.

Nice To Haves

Exposure to chaos engineering tools, API Gateway technologies (Tyk/Kong), GraphQL federation (Apollo), cost optimization initiatives, FinOps principles.

Responsibilities

Implement and maintain highly available AWS infrastructure including EKS clusters, Fargate (ECS), and multi-region architectures.
Support the reliability of critical services: Skyway (CI/CD), Frontdoor (Tyk), Pantheon (Apollo GraphQL), and supporting infrastructure.
Monitor SLIs, SLOs, and error budgets for Tier 1/2/3 systems; participate in architectural reviews for reliability and cost-efficiency.
Implement reliability patterns including circuit breakers, graceful degradation, and automated failover.
Implement observability solutions using NewRelic for APM, distributed tracing, metrics, and logging for rapid troubleshooting.
Build dashboards and alerts that reduce MTTD and MTTR; contribute to observability standards across teams.
Identify infrastructure cost optimization opportunities and implement FinOps practices including rightsizing and resource lifecycle management.
Support cost-conscious architecture decisions and CI/CD spend optimization (CircleCI, Argo CD).
Execute chaos engineering experiments to identify system weaknesses; contribute to frameworks for safe production testing.
Participate in game day exercises and disaster recovery simulations; create runbooks and automation for resilience.
Participate in on-call rotation for critical systems; conduct post-incident reviews and implement improvements.
Support incident response processes and contribute to System Health Scorecard.
Contribute as a strong technical individual contributor to the Operations Excellence team.
Collaborate with Platform Engineering, Quality Engineering, and product teams on reliability initiatives.
Support security initiatives including AWS Secrets Manager migration and compliance requirements (SOC 2, PCI, GDPR).
Contribute to Developer Experience metrics and platform adoption goals.
May provide technical guidance to junior team members.