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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Performance SDET (on-site) - **Company:** Tabletop Media, LLC - **Location:** Plano, TX, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Application Performance Management, Automation of Tests, C Sharp (Programming Language), Cloud Computing, Software Quality, Computer Programming, Databases, Continuous Integration, Decision Support Systems, Distributed Systems, Elasticsearch, Payment Systems, Apache JMeter, Python (Programming Language), Load Testing, Prometheus, Azure DevOps Pipelines, Software Engineering, Systems Integration, Test Data, TypeScript, Datadog, Scripting, Performance Testing, Grafana, Gatling, Kotlin, Low Latency, Kibana, SDET - **Published:** July 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=55100b31efc91099 ## About the Role * 7+ years of experience in software development, SDET, performance testing, software quality, or related engineering disciplines. * 3+ years of hands-on performance testing experience, including load, stress, scalability, and reliability validation. * Experience building automated performance testing frameworks and integrating tests into CI/CD workflows. * Strong experience with Gatling, JMeter, k6, Locust, or similar performance testing platforms. * Strong understanding of APIs, distributed systems, integrations, cloud-connected applications, and transaction-heavy systems. * Experience analyzing telemetry, logs, monitoring data, performance metrics, and system behavior to identify root causes. * Strong programming or scripting skills in Java, Kotlin, JavaScript, TypeScript, Python, C#, or similar languages. * Experience using AI-assisted development or testing tools to improve engineering effectiveness. * Strong communication and collaboration skills, with the ability to explain technical findings to engineering and business stakeholders. Preferred * Experience with Gatling Enterprise. * Experience building AI-assisted testing, analysis, reporting, or engineering automation workflows. * Experience creating or using AI agents to automate repetitive engineering activities. * Experience testing payment systems, high-volume customer-facing applications, or device-integrated solutions. * Experience with observability platforms such as Grafana, Application Insights, Kibana, Elasticsearch, Prometheus, Datadog, or similar tools. ## Description This is a hands-on engineering role that blends test automation, performance analysis, coding, coaching, and practical testing leadership. The Senior Performance SDET partners with Engineering, Product Owners, Solutions Engineering, IT, and testing teams to identify risks early, validate system behavior under load, and help teams build better quality into their work. The role is expected to use AI assistants, agents, and automation to accelerate test creation, analysis, investigation, and decision support while applying sound engineering judgment to validate results. The Main Course - Responsibilities Performance Strategy, Standards & Quality Gates * Own the performance testing strategy, standards, and reusable practices across Ziosk products and platforms. * Define performance objectives, scalability targets, baselines, and release quality gates for key initiatives. * Drive shift-left performance practices so teams address scalability and reliability risks early. * Partner with Engineering, Product Owners, and testing teams to turn performance data into clear risk decisions. Automation, Load Testing & Agent-Based Workflows * Design, build, and maintain automated performance testing frameworks using Gatling Enterprise and supporting tools. * Create reusable simulations, test data, load models, and automation assets for APIs, services, and integrated systems. * Integrate performance tests, quality gates, reporting, and trend analysis into Azure DevOps pipelines and release workflows. * Use AI tools and agents to accelerate test design, maintenance, optimization, reporting, and coverage expansion. * Design and execute load, stress, endurance, spike, capacity, and scalability tests using realistic usage patterns. Analysis, Observability & Engineering Intelligence * Analyze application, API, database, infrastructure, telemetry, logs, and monitoring data to explain performance behavior. * Investigate latency, throughput, resource utilization, scalability, degradation, and reliability concerns. * Use AI-assisted analysis to identify trends, anomalies, bottlenecks, likely root causes, and recommended next actions. * Build dashboards, scorecards, KPIs, and decision-support reporting that connect technical performance to business impact. * Validate AI-generated findings through evidence-based analysis and partner with teams to confirm improvements. Technical Leadership & Team Enablement * Serve as a subject matter expert for performance testing, performance quality, and AI-assisted performance engineering. * Mentor engineers and testers on performance methods, tooling, automation, hands-on testing, and AI-enabled workflows. * Create reusable prompts, agents, workflows, examples, and accelerators that improve team productivity and consistency. * Promote responsible AI adoption while helping teams improve the way they test, analyze, and release software. ## Related Videos - [Frontend Performance Testing in practice](https://www.wearedevelopers.com/videos/8-frontend-performance-testing-in-practice) - [Debug a Kubernetes Operator](https://www.wearedevelopers.com/videos/487-debug-a-kubernetes-operator) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Continuous testing - run automated tests for every change!](https://www.wearedevelopers.com/videos/190-continuous-testing-run-automated-tests-for-every-change) - [Add Location-based Searching to Site with ElasticSearch](https://www.wearedevelopers.com/videos/77-add-location-based-searching-to-site-with-elasticsearch) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Benefits of Using JMeter For Performance Testing](https://www.wearedevelopers.com/magazine/96-benefits-of-using-jmeter-for-performance-testing) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)