Senior QA Automation Engineer- Embedded IoT

We are looking for a Senior QA Automation Engineer to lead the development and maintenance of automated testing for mission-critical Node.js and .NET applications deployed on embedded IoT edge devices and cloud containers. This role is pivotal in ensuring robust data acquisition from field devices, reliable edge-to-cloud communication under unstable network conditions, and high-quality global deployments.

Key Responsibilities:

• Define and contribute to test strategy and planning aligned with product goals and release cycles.
• Develop and maintain automation frameworks for embedded Linux devices and cloud-based services.
• Collaborate with developers to ensure testability and maintain high product quality.
• Integrate automated tests into CI/CD pipelines and manage test environments.
• Troubleshoot and reproduce bugs from globally deployed devices.
• Ensure feature parity and stability during transition from legacy to new .NET-based systems.
• Automate testing for industrial protocols (e.g., Modbus RTU/TCP, OSISoft PI, KepServerEX).
• Validate UI performance on low-power edge devices and optimize rendering.
• Simulate and test under challenging network conditions (high-latency, low-bandwidth, packet loss).
• Maintain test documentation, traceability, and quality metrics.

Required Qualifications:

• Bachelors degree in Computer Science, Engineering, or related field.
• 5+ years of QA experience with Node.js/TypeScript.
• 2+ years of experience testing command-line applications/services.
• 2+ years of experience with automated testing frameworks.
• Experience with embedded Linux or industrial edge devices.
• Familiarity with CI/CD tools and test integration.
• Strong documentation and traceability practices.

Key Skills & Competencies:

• Strong troubleshooting and debugging skills.
• Proficiency in Python, JavaScript, and C# for test automation.
• Deep understanding of TCP/IP networking and network simulation.
• Experience with Docker, Jenkins, Bitbucket, and Artifactory.
• Familiarity with test management tools (e.g., Jira, Confluence).
• Excellent communication and collaboration skills.
• Experience testing distributed systems and microservices.

Preferred Skills:

• Expertise in Modbus RTU/TCP and serial communication (RS485/RS232).
• Experience with MQTT, SparkplugB, ZeroMQ, ProtoBuf, Kafka.
• Hands-on with Linux networking tools (e.g., nmcli, mmcli).
• Knowledge of secure software development practices.
• Experience with SBOMs, artifact signing, and vulnerability scanning.
• Familiarity with IoT device testing, including hardware and firmware validation.