Sr Site Reliability Engineer

Recognized as the No. 1 site trusted by real estate professionals, Realtor.com® has been at the forefront of online real estate for over 25 years, connecting buyers, sellers, and renters with trusted insights and expert guidance to find their perfect home. Through its robust suite of tools, Realtor.com® not only makes a significant impact on the real estate industry at large, but for consumers, navigating the biggest purchase they will make in their life, by providing a user experience that is easy to use, easy to understand, and most of all, easy to make decisions.

Join us on our mission to empower more people to find their way home by breaking barriers to entry, making the right connections, and building confidence through expert guidance.

We are seeking a Senior Site Reliability Engineer to join our newly formed Operations Excellence organization, reporting to the Director, Operations Excellence. This role will contribute to the reliability, observability, and operational excellence of our platform infrastructure serving millions of users. As a Senior SRE, you will be a strong technical contributor who implements best practices, solves complex problems, and enables our 600+ engineers to deliver exceptional customer experiences. You will work on critical platform systems including EKS infrastructure, Skyway (CI/CD), Frontdoor (Tyk API Gateway), Pantheon (Apollo GraphQL Federation), and our observability stack, while contributing to chaos engineering practices and cost optimization initiatives with measurable ROI.

What You'll Do:

Platform Reliability Infrastructure

Implement and maintain highly available AWS infrastructure including EKS clusters, Fargate (ECS), and multi-region architectures

Support 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

Observability Cost Optimization

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)

Chaos Engineering Incident Response

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

Technical Contribution

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

What You'll Bring:

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

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

Technical Skills

Cloud Infrastructure: AWS (EKS, Fargate, Lambda, VPC, Route53, CloudFront), Kubernetes, Docker, Istio Service Mesh

CI/CD GitOps: Argo CD, CircleCI, Jenkins, GitHub Actions

Observability: NewRelic - APM, distributed tracing, metrics logging; Splunk - logging

IaC Automation: Terraform, CloudFormation, Helm, Kustomize, Python/Go/Bash

Platform Services: Tyk Gateway, Apollo GraphQL, AWS Secrets Manager, Vault

Incident Management: OpsGenie, PagerDuty, ServiceNow

Professional Qualities

Strong communication skills with ability to explain technical concepts …