Senior Site Reliability Engineer

Senior Site Reliability Engineer Overview

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers.

We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.

This position is located in Arlington, VA and is in office Monday through Thursday and work from home on Friday.

• Lead the design of observability, automation, and incident response frameworks.
• Own reliability for massive-scale systems and services used globally.
• Collaborate cross-functionally with engineering, product, and data teams to evolve our core platforms.
• Influence platform direction and infrastructure strategy across cloud and hybrid deployments.
• Drive large initiatives around performance, failover, disaster recovery, and cost optimization.
• Thrive on scale, reduce complexity, and systems-level thinking.
• Bring a product mindset to reliability, thinking beyond uptime to customer experience and business impact.
• Mentor others and lead by example in high-performance environments.

• Bachelor’s Degree required from an accredited, not for profit university or college.
• 5+ years of experience managing large distributed systems using mass scale architecture.
• Experience managing infrastructure that supports high-volume, low-latency applications.
• Experience designing, implementing, and maintaining APM and observability solutions for large-scale data infrastructure.
• Production experience with Kubernetes, Docker, and container deployment strategies.
• Infrastructure as code using Cloud formation, Terraform, or similar platforms.
• Experience in AWS is a must; experience in Azure or Google Cloud as a plus.
• Experience with any relational or document databases.
• Experience configuring Content Delivery Networks (CDN) for performance, caching, and global traffic management.
• Familiarity with infrastructure foundation components of large networks in AWS and on-prem (e.g., systems & network administration, DNS, hypervisors, containers, databases, multi‑datacenters).
• Background with Bash scripting and programming languages such as Java, C#, Python, NodeJS.
• Solid sizing and estimation techniques for small to medium size tasks and projects.

• Server‑less architecture methodologies.
• Familiarity with PCI compliance and remediation.
• Experience in REST API or Microservices development.

• Generous compensation and performance-based incentives.
• Professional and academic growth through internal training and tuition reimbursement.
• Comprehensive healthcare coverage:
  Medical / Vision / Dental / Prescription Drug, Life, legal, and supplementary insurance.
• Virtual and in‑person mental health counseling services for individuals and family.
• Commuter and parking benefits.
• 401(k) retirement plan with matching contributions.
• Employee stock purchase plan.
• Paid time off.
• On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes.
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups.
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks.

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing.

Please note that CoStar Group is not able to provide visa sponsorship for this position.