Senior Site Reliability Engineer

Fiserv

full-time

Posted on: 9/3/2025

Origin: • 🇺🇸 United States

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Senior

AWSAzureCloudDockerGoogle Cloud PlatformJavaKubernetesMySQLOraclePostgresPythonSplunkSQL

About the role

Ensure performance, reliability, and scalability of production systems
Identify and resolve performance bottlenecks across application code, JVM, databases, and infrastructure
Optimize SQL queries and JVM configurations; recommend application-level enhancements
Collaborate with development, QA, and infrastructure teams to integrate performance improvements into deployment pipelines
Monitor system health using Splunk, Dynatrace, Extrahop, Foglight, Wireshark; develop dashboards, alerts, and automated reporting
Participate in client onboarding by reviewing usage patterns and performing capacity planning
Provision and optimize infrastructure resources to maintain high availability and performance
Lead incident response, triage, root cause analysis, and post-incident reviews to improve resilience

7+ years of hands-on experience in performance engineering, site reliability engineering, or a closely related technical discipline
Advanced proficiency in SQL and database performance tuning (e.g., Oracle, PostgreSQL, MySQL)
Deep understanding of JVM internals, memory management, and garbage collection strategies
Strong programming skills in Java and scripting languages such as Python or Bash
Familiarity with cloud platforms (AWS, Azure, GCP) and container orchestration technologies (e.g., Kubernetes, Docker)
Demonstrated experience with Splunk, Dynatrace, Extrahop, Foglight, and Wireshark in production environments
Exceptional analytical, problem-solving, communication and collaboration skills
Bachelor’s degree in computer science, Engineering, or related field