Senior QA Engineer / Performance & Load Testing / NYC

New York, New YorkHybridContract$60/hr - $90/hrJob DescriptionA leading global financial services organization supporting millions of consumer transactions daily is seeking a QA Engineer specializing in Performance and Load Testing to support a major platform integration within its premium global dining division. As the organization brings together two major reservation platforms, this team is focused on ensuring the scalability, reliability, and performance of high-volume, real-time systems.As a Performance & Load Testing QA Engineer, you'll take a hands-on role designing and executing complex load-testing scenarios across APIs and event-driven architectures. You'll analyze system behavior under heavy traffic, evaluate latency percentiles, throughput, and error rates, and trace performance bottlenecks across application and infrastructure layers. Working closely with engineering teams, you'll help identify system limitations and ensure the platform can support demanding traffic volumes throughout the integration process.This is an opportunity for an experienced performance testing professional who enjoys deep technical analysis and hands-on problem-solving. The ideal candidate has extensive practical experience with established load-testing tools and a strong understanding of traffic, event-driven systems, and WebSocket communication. This is an individual contributor position focused entirely on technical execution, performance analysis, and helping engineering teams improve system scalability.This is a long-term contract expected to last at least one year, with the possibility of extension or conversion. The position follows a hybrid schedule, with two to three days per week in the New York City office. Compensation is flexible based on experience and technical expertise.Required Skills & ExperienceExtensive hands-on experience with at least one established load-testing tool, such as k6, JMeter, Gatling, or LocustStrong experience testing traffic, APIs, and event-driven or WebSocket-based systemsProven ability to analyze performance metrics, including latency percentiles, error rates, and throughputDemonstrated experience identifying, tracing, and isolating application and infrastructure bottlenecksExperience designing and executing complex load-testing and performance-testing scenariosStrong understanding of system scalability, high-volume traffic, and performance limitationsAbility to work as a fully hands-on individual contributorStrong analytical, troubleshooting, and problem-solving skillsAbility to collaborate effectively with engineering teams to investigate and resolve performance issuesDesired Skills & ExperienceExperience supporting large-scale platforms with high transaction volumesExperience testing distributed systems and event-driven architecturesFamiliarity with real-time application performance and WebSocket traffic patternsExperience supporting platform integrations, migrations, or system mergersExperience analyzing system behavior under varying traffic loads and identifying throughput limitsBackground in financial services, consumer platforms, dining, or reservation technologyWhat You Will Be Doing Daily Responsibilities Design and execute comprehensive load-testing and performance-testing scenariosUse tools such as k6, JMeter, Gatling, or Locust to simulate high-volume traffic and evaluate system behaviorTest endpoints and event-driven or WebSocket communicationAnalyze latency percentiles, throughput, error rates, and other performance indicatorsIdentify system capacity limits and determine how applications behave under increasing trafficTrace and isolate bottlenecks across application and infrastructure layersInvestigate performance degradation and provide actionable findings to engineering teamsCollaborate with engineers to optimize system performance, reliability, and scalabilitySupport performance validation during the integration of two major reservation platformsHelp ensure the platform can reliably handle high-volume, real-time traffic throughout the integration processThe OfferLong-term contract expected to last at least one yearPotential for contract extension or conversionFlexible compensation based on experience and expertiseHybrid work schedule, with two to three days per week in the New York City officeOpportunity to support a large-scale platform integration within a global financial services organizationHands-on technical role focused on performance engineering, scalability, and reliabilityApplicants must be authorized to work in the US on a full-time basis now and in the future.You will receive the following benefits:Medical Insurance - Four medical plans to choose from for you and your familyDental & Orthodontia BenefitsVision BenefitsHealth Savings Account (HSA)Health and Dependent Care Flexible Spending AccountsVoluntary Life Insurance, Long-Term & Short-Term Disability InsuranceHospital Indemnity Insurance401(k) including match with pre and post-tax optionsPaid Sick Time LeaveLegal and Identity Protection PlansPre-tax Commuter Benefit529 College Saver PlanMotion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Accommodation will be provided in all parts of the hiring process as required under MRP’s Employment Accommodation policy. Applicants need to make their needs known in advance.