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Apex Systems Logo Apex Systems · IT - Software Development

Site Reliability Engineer

United States, Irving 61.00 - 70.00 USD / Hour · Job Posted February 17, 2026
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Job Description

As part of tech modernization and cloud migration, digital applications are undergoing migration to Azure cloud environment. The applications are needed to be performance tested with the required tunable to be resilient enough.

Job Responsibility

  • Performance Testing: Design and execute performance tests to evaluate the system's responsiveness, stability, scalability, and resource usage
  • Identify performance bottlenecks and provide recommendations for improvements
  • Analyze test results and generate detailed performance reports
  • Resiliency Testing: Conduct resiliency tests to ensure the system can handle failures and recover gracefully
  • Implement and test failure scenarios to validate the system's fault tolerance
  • Recommend and validate resiliency patterns such as circuit breakers, bulkheads, and retries
  • Performance Monitoring: Set up and maintain performance monitoring tools to continuously track system performance
  • Analyze performance metrics and logs to detect and diagnose performance issues in real-time
  • Capacity Planning: Perform capacity planning to ensure the system can handle expected and peak loads
  • Provide recommendations for scaling resources based on performance data and future growth projections
  • Performance Optimization: Collaborate with development and operations teams to optimize code, database queries, and infrastructure configurations
  • Recommend best practices for performance tuning and optimization
  • Kubernetes Performance Parameters: Recommend and configure performance parameters for Kubernetes clusters, such as resource limits, requests, and autoscaling policies
  • Ensure optimal performance of containerized applications running in Kubernetes environments
  • Resiliency Patterns: Recommend and implement resiliency patterns like circuit breakers, rate limiters, and fallback mechanisms to enhance system reliability
  • Validate the effectiveness of these patterns through testing and monitoring
  • Documentation and Training: Document performance testing methodologies, tools, and best practices
  • Provide training and support to development and operations teams on performance and resiliency best practices
  • Continuous Improvement: Continuously evaluate and improve performance testing and monitoring processes
  • Stay updated with the latest performance engineering tools, techniques, and industry trends

Requirements

  • Experience with containerization technologies like Docker
  • String scripting skills in languages such as Bash, Python
  • Effective problem-solving and analytical skills
  • Must be familiar with observability and APM tools like Splunk, ELK, AppDynamics etc
  • Good understanding of Architecture patterns and resiliency
  • Programing experience in Java and Spring boot
  • Strong microservices application support experience
  • Proficient understanding of algorithms, data structures, architectural design patterns and best practices
  • Experience with Cloud is required

Nice to have

  • Experience working applications using Kubernetes platform is preferred
  • Understanding of networking concepts, including DNS, load balancing, firewalls, and VPNs

What we offer

  • Medical, dental, vision, life, disability, and other insurance plans
  • ESPP (employee stock purchase program)
  • 401K program with company match after 12 months
  • HSA (Health Savings Account on the HDHP plan)
  • SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
  • Corporate discount savings program
  • On-demand training program
  • Access to certification prep and a library of technical and leadership courses/books/seminars after 6+ months
  • Certification discounts
  • Dedicated customer service team
  • Certified Career Coach
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