Performance Test Lead - IoT & SCADA Platform

Role Overview

We are seeking a dedicated Performance Test Lead to spearhead the performance testing strategy for our IoT & SCADA platform. This pivotal role involves designing and executing comprehensive load, stress, and endurance tests in both on-premises and Microsoft Azure environments. The objective is to ensure our platform efficiently handles high-volume IoT data, supports real-time SCADA operations, and meets enterprise-scale workloads with optimal performance, scalability, and reliability.

Responsibilities

• Design robust performance testing strategies, including test plans, KPIs, SLAs, and performance models tailored for IoT ingestion, SCADA polling, dashboards, alerting, and reporting.
• Configure performance test environments that closely replicate on-premises and Azure production settings.
• Develop and maintain performance test scripts using tools like JMeter, k6, Locust, and Gatling.
• Simulate large-scale workloads encompassing 10,000+ device connections, MQTT/OPC UA traffic, high-frequency sensor data, and SCADA HMI activity.
• Integrate automated performance tests into Azure DevOps CI/CD pipelines to streamline processes.
• Monitor and analyze system performance with tools such as Azure Monitor, Application Insights, Log Analytics, and Grafana.
• Identify and address bottlenecks, analyzing CPU, memory, database latency, IoT Hub throttling, network performance, and end-to-end latency.
• Prepare detailed performance reports, capacity recommendations, and SLA pass/fail results for engineering teams and client stakeholders.
• Collaborate with developers, DevOps, and infrastructure teams to enhance application, database, and cloud performance.
• Support UAT, major releases, client deployments, and post-release hypercare activities.
• Establish and promote performance testing standards, templates, processes, and best practices across the organization.
• Ensure all performance testing is conducted safely, especially with systems linked to live OT/SCADA environments.

Required Skills

• Over 5 years of experience in performance testing with a proven track record in designing performance strategies beyond just executing test scripts.
• Proficient with performance testing tools such as JMeter, k6, Locust, and Gatling.
• Experience in testing cloud-native, hybrid, and enterprise-scale systems, preferably within Microsoft Azure environments.
• Comprehensive understanding of IoT and SCADA systems, including device telemetry, MQTT, OPC UA, PLCs, real-time dashboards, and time-series data.
• Strong analytical and troubleshooting skills, capable of interpreting logs, metrics, and traces to determine root causes.
• Experience with performance monitoring and observability tools.
• Excellent communication and reporting skills, with the ability to convey technical findings to both technical and non-technical audiences.
• Experience with Azure IoT Hub and Azure Data Explorer or similar time-series databases.

Nice to Have

• Knowledge of Kubernetes, Docker, and Terraform for setting up performance test environments.
• Familiarity with OT networks, PLCs, and industrial communication protocols.
• Experience in integrating performance testing into Azure DevOps pipelines.
• Hold an ISTQB Performance Testing certification.
• Possess Microsoft Azure Administrator or Azure Solutions Architect certification.