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Quest Diagnostics · Schaumburg, IL

Performance Engineer II (SRE)

Schaumburg, IL, USFull-time{'@type': 'MonetaryAmount', 'currency': '', 'value': {'@type': 'QuantitativeValue', 'unitText': ''}}Software Engineering

Listed on Quest Diagnostics’s official careers site. Posted August 7, 2026. Check that it is still open and apply there.

Apply on Quest Diagnostics’s careers site →

Job description

Job Description

This position is hybrid and will require 3 days on site at one of the following Quest sites: Secaucus, NJ or Schaumburg, IL.

Pay Range

$85,000-120,000, plus yearly bonus Benefits Information: We are proud to offer best-in-class benefits and programs to support employees and their families in living healthy, happy lives. Our pay and benefit plans have been designed to promote employee health in all respects physical, financial, and developmental. Depending on whether it is a part-time or full-time position, some of the benefits offered may include: Day 1

Medical, supplemental health, dental & vision for FT employees who work 30+ hours Best-in-class well-being programs Annual, no-cost health assessment program Blueprint for Wellness healthyMINDS mental health program Vacation and Health/Flex Time 6 Holidays plus 1 MyDay off FinFit financial coaching and services 401(k) pre-tax and/or Roth IRA with company match up to 5% after 12 months of service

Employee stock purchase plan Life and disability insurance, plus buy-up option Flexible Spending Accounts Annual incentive plans Matching gifts program Education assistance through MyQuest for Education Career advancement opportunities and so much more!

Responsibilities

Responsibilities: System Monitoring and Analysis: Implement and maintain robust observability solutions to monitor system performance, identifying bottlenecks, and ensuring optimal operation. Utilize tools to gather, analyze, and visualize key performance metrics.

Performance Optimization

Proactively identify and address performance bottlenecks through in-depth analysis and optimization strategies. Work closely with development teams to implement performance improvements and enhance overall system efficiency.

Capacity Planning

Conduct capacity planning exercises based on observed patterns and future growth projections. Collaborate with infrastructure and development teams to ensure adequate resources are available to meet system demands.

Automation and Scripting

Develop and maintain automation scripts for routine tasks, enabling efficient monitoring and response procedures. Implement automated processes for scaling and provisioning resources based on observed workload patterns.

Documentation

Document system architecture, configurations, and observability best practices to facilitate knowledge transfer and onboarding for team members. Keep documentation up-to-date to reflect changes in the system and its monitoring setup.

Collaboration with Development Teams

Work closely with software engineers to integrate observability tools into the development lifecycle. Provide guidance on building observable systems and assist in instrumenting applications for effective monitoring.

Continuous Improvement

Stay informed about industry best practices and emerging technologies related to observability and performance engineering. Drive continuous improvement initiatives to enhance the reliability and performance of systems.

Security and Compliance

Collaborate with security teams to implement monitoring and observability measures that align with security requirements and compliance standards. Participate in security incident response activities and contribute to ongoing security assessments.

Training and Knowledge Sharing

Conduct training sessions for team members and other stakeholders on observability tools, best practices, and performance engineering concepts. Foster a culture of knowledge sharing within the organization. And other duties as assigned.

Qualifications

Required Work Experience: 4+ years of experience with multiple APM tools and extensive experience with Dynatrace 3+ years SRE experience Experience in software development, infrastructure, or operations roles Certifications in relevant technologies (e.g. AWS, DevOps, Kubernetes, Dynatrace, Azure, etc.) Working experience building CI/CD pipelines and version control systems Working experience with scripting languages (e.g.

Python, Bash, Go, etc.) Excellent problem-solving and communication skills. Ability to work collaboratively in a fast-paced, agile environment.

Preferred Work Experience

Working experience with Neoload, Jmeter or equivalent performance testing tool. Experience executing software load and performance testing in an enterprise environment. Experience testing applications hosted in the cloud. Experience with infrastructure as code tools such as Terraform or CloudFormation. Deep understanding of Linux systems administration and networking principles. Experience with containerization and orchestration technologies such as Docker and Kubernetes.

Experience or familiarity with IIS, HTML, Java, Jboss. Experience in Chaos Engineering Programming experience using.NET, C, C++, Java, or other popular programming languages. Perl/Python/JavaScript scripting experience may be considered equivalent. Terraform and Ansible experience. Exposure to Splunk tools. Exposure to microservices. Dynatrace Certifications AWS/Azure/GCP Certifications Chaos Engineering Certifications Agile Certifications Physical and Mental Requirements: Ability to sit/stand for long periods of time.

Ability to handle high stress situations. Ability to lift up to 50 lbs.

Knowledge

Site Reliability Engineering Principles DevSecOps Principles Agile (SAFe)

Healthcare industry ITLT ServiceNow Jira/Confluence Skills

Dynatrace/Prometheus/Grafana Neoload/Jmeter Splunk AWS/Azure/GCP SAFe Agile Strong communication skills (written/verbal) Time management Analytic problem solver Self-starter Result oriented and proven ability in organizing priorities Education Bachelor’s Degree Bachelor's degree in Computer Science, Engineering, or a related field (Required) Licenses and Certifications Agile Certification (Project Management) (Preferred) 56394 Quest Diagnostics honors our service members and encourages veterans to apply.

While we appreciate and value our staffing partners, we do not accept unsolicited resumes from agencies. Quest will not be responsible for paying agency fees for any individual as to whom an agency has sent an unsolicited resume.

Equal Opportunity Employer

Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.

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