Senior System Test & Validation Engineer

Overview

We are seeking a Senior System and Software Test Engineer to validate and assure the quality of complex system software spanning scientific instruments and full web application stacks. This role emphasizes system-level testing, automation, and CI/CD integration, and works closely with Product teams to deliver robust, scalable, and secure analytical instrument platforms.

• Design, develop, and execute system-level test strategies for Linux-based IoT platforms, integrating embedded software, backend services, and web applications
• Validate end-to-end workflows across device firmware, edge services, cloud/backend APIs, and web UI
• Perform functional, integration, regression, performance, scalability, and reliability testing
• Test system behavior under real-world conditions (network latency, device failures, power cycling, upgrades, and stress scenarios)
• Test instrument bring-up, initialization, calibration, and recovery sequences across power cycles, firmware updates, and fault conditions
• Verify system behavior under environmental and operational stresses (temperature variation, vibration, long-duration runs, and high-duty cycles)
• Lead and support cross-disciplinary root cause analysis involving software, electronics, firmware, and mechanical components
• Diagnose complex issues spanning Linux OS, embedded controllers, electronics, and mechanical subsystems
• Use logs, telemetry, oscilloscopes, logic analyzers, and other diagnostic tools to isolate hardware–software interaction issues
• Reproduce field and manufacturing issues in lab environments and drive corrective actions
• Support manufacturing test strategies by validating system-level test coverage and automation readiness
• Assist with serviceability and diagnostics validation, ensuring issues can be effectively detected and resolved in the field
• Develop and maintain automated test frameworks for system, API, and web layers
• Integrate automated tests into CI/CD pipelines to enable continuous quality
• Drive increased test coverage at the system and service-interaction level, beyond unit testing
• Collaborate with Dev Ops to support build verification, deployment validation, and release readiness
• Validate containerized and non-containerized deployments (e.g., Docker-based services on Linux)
• Monitor test results from CI pipelines and provide rapid feedback to development teams
• Support troubleshooting of system issues in development and pre-production environments

• 5+ years of experience in system software testing or system validation for complex products combining software, electronics, firmware, and electromechanical subsystems
• Strong hands-on experience testing Linux-based systems and IoT platforms, including hardware–software integration
• Proven ability to test web application stacks (UI, APIs, backend services) and validate end-to-end system workflows
• Proficiency in test automation and scripting (Python preferred) and integration with CI/CD pipelines
• Demonstrated skill in troubleshooting and root cause analysis across software, embedded controllers, electronics, sensors, and motion-control subsystems
• Comfortable working in a lab environment with analytical instruments, using diagnostic tools (logs, telemetry, multimeter, oscilloscope)

• Experience with CI/CD pipelines (e.g., Jenkins, Git Lab CI, Git Hub Actions, Azure Dev Ops)
• Experience with IoT platforms, edge devices, or connected instruments
• Familiarity with containerization (Docker, Kubernetes concepts)
• Experience with cloud-connected systems (AWS, Azure, or GCP – at a functional level)
• Exposure to performance, load, or reliability testing in distributed systems
• Knowledge of observability tools (logs, metrics, traces) for test and failure analysis

Waters Corporation (NYSE:

WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, our innovative portfolio harnesses deep scientific expertise across chemistry, physics, and biology. We collaborate with customers around the…