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Sr. Performance Engineer
Horsham, Pennsylvania  |  Onsite
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Applied on May 23, 2022
Job Id #52992 Posted January 3, 2022


Description:

  • Sr. Performance Engineer (JMeter experience and strong automation experience)

Summary:

  • As a Sr. Performance Engineer you ll work in a critical DevOps function that focuses on delivering high performance and scalable applications to our customers.
  • Sr. Performance Engineer defines workloads that model the performance of our systems under expected load, automate the generation of these workloads, measure system behavior, conduct analysis to gain insights into how to make the system run faster and use resources more efficiently.
  • You will actively use performance tools, profilers and monitors to analyze, optimize component level performance metrics
  • The candidate must be a team player with excellent written & verbal communication skills.

General Responsibilities

  • Validation of Applications Quality from Performance Perspective (80%)
  • Design workloads and simulations to model our applications usage and establish performance and scalability benchmarks.
  • Assist in the design, development and support of test harness components as needed to execute workloads
  • Automate the tracking and publishing of Performance results across software builds and releases to ensure high quality releases.
  • Perform root cause analysis for performance optimization and architecture. Demonstrate a technical aptitude to do a deep dive into problem areas and contribute to fixes that are faster, cleaner and require less maintenance.
  • Estimate performance testing deliverables for all applicable projects.
  • Requirements gathering, creating JMeter scripts and execution.
  • Hands-on script development using JMeter or other open source tools.
  • Monitor build jobs and create defects for any performance related issues.
  • Perform In sprint performance testing.
  • Scripting new functionality and fixing existing failed JMeter scripts.
  • Plan performance tests both in QA and pre-prod (sometimes production).
  • Develop, document, and maintain the test strategy and test scenarios.
  • Execute tests using cloud load generators as required.
  • Collaborate with Operations team to monitor applications to ensure applications perform as planned.
  • Track defects on issues found.
  • Perform detailed analysis on any bottlenecks found during test executions.
  • Develop reports for leadership summarizing test results and trends.
  • Build Stress, Load, Capacity and soak tests across multiple departments within the enterprise.

Leadership (20%)

  • Ability to communicate performance metrics of the applications to the leadership.
  • Develop and maintain Key Performance Indicators (KPI) for the various applications.
  • Develop and maintain service level metrics for systems, including response time, failover, time to failure, and time to recover.
  • Ability to coordinate with Leads and development managers.
  • Demonstrate ownership and accountability in work assignments.
  • Be resourceful and collaborate with respective teams to quickly solve performance and scalability challenges.

Qualifications

MUST HAVEs

  • 10+ years of experience in performance testing/engineering.
  • 5+ years expert experience in JMeter tool.
  • Strong Automation and coding skills using one or more of Java, Shell, Groovy or other languages.
  • Experience performance testing applications developed in Java
  • Good understanding of Java runtime (JVM) performance, JMX, Garbage Collection and Thread management
  • A minimum of 3 years experience using diagnostic tools like HTTP Watch, Fiddler IE and Chrome Developer Tools.
  • Experience with Application Performance Management (APM) tools such as Dynatrace
  • Thorough understanding of networking technologies (TCP/IP, DNS, Load Balancers, Firewalls, etc.)
  • Experience running tests using cloud testing tools like BlazeMeter, OctoPerf etc.
  • Strong knowledge of Splunk to build effective visualizations, alerts and dashboards around key business transitions, performance and health metrics to get deeper operational and system insight on the systems.
  • Experience with buffering and messaging tech such as ActiveMQ and Kafka.
  • Experience integrating performance scripts (JMeter) into Jenkins and JMeter with scripting (groovy).
  • Experience in testing the performance of REST APIs and microservice architecture.
  • Extensive understanding of web applications and browser concepts (HTTP/HTTPS, connections, cookies, caching, etc.)
  • A team player with excellent written & verbal communication skills.

NICE TO HAVEs

  • Experience developing JMeter plug-ins for specific load test scenarios.
  • Experience with Container technologies such as Docker and Kubernetes.
  • Mocking / traffic manipulation services (Hoverfly, Wiremock or ToxiProxy)
  • Development experience or at least a thorough understanding of current programming models such as Spring Boot etc.
  • A good understanding of performance monitoring and tuning of Relational Databases (SQL Server)
  • Experience with developing and performance testing/tuning of systems using NoSQL databases such as Couchbase and Cassandra.
  • Working knowledge of network packet sniffers (e.g. TcpDump, Network Monitor, WinDump).
  • Working knowledge of operating system design/tuning (e.g. Linux, Windows)
  • Experience with using Jira and Confluence for managing work items Good understanding of agile methodologies and agile performance testing.
  • Strong understanding of techniques such as Continuous Integration, Continuous Delivery, Test Driven Development, Cloud Development, application resiliency and security.
  • Ability to work independently with an aptitude for detailed work and follow-up activities.
  • Bachelor s degree in computer science or equivalent experience.

Team and Team size:

  • The performance team is 3 performance engineers and 1 performance diagnostic

Top Responsibilities: 

  • Design workloads and simulations to model our applications usage and establish performance and scalability benchmarks.
  • Assist in the design, development and support of test harness components as needed to execute workloads
  • Automate the tracking and publishing of Performance results across software builds and releases to ensure high quality releases.
  • Perform root cause analysis for performance optimization and architecture.
  • Develop and maintain Key Performance Indicators (KPI) for the various applications.
  • Ability to coordinate with Leads and development managers.

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact hr@horizontal.com.

All applicants applying must be legally authorized to work in the country of employment.

EQUAL OPPORTUNITY EMPLOYMENT SURVEY

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You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.

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