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# Senior System Test & Validation Engineer

- **Company:** Waters
- **Location:** New Castle, DE, United States
- **Experience:** Expert
- **Salary:** $150,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Web Interfaces, Application Programming Interfaces (APIs), Amazon Web Services, Automation of Tests, Microsoft Azure, Software Quality, Continuous Integration, Linux, DevOps, Embedded Software, Firmware, Github, Python (Programming Language), Linux System Administration, Software Reliability Testing, Cloud Services, Webui, System Testing, Systems Integration, Web Applications, Scripting, Grafana, Software Troubleshooting, Backend, System-level Testing, Containerization, Gitlab-ci, Docker, Jenkins, Web Api
- **Published:** July 23, 2026
- **Apply:** https://www.careerjet.com/job/us264fa328a466f55c5dff6a963c203fde/eaa

## About the Role

What We're Looking For (Must-Have)

 * 5+ years of experience in system testing, validation, or quality engineering for complex products
 * Hands-on experience with Linux-based systems, embedded platforms, or IoT devices
 * Proven ability to validate end-to-end systems spanning hardware and software
 * Experience with test automation and scripting (Python strongly preferred)
 * Strong troubleshooting and root cause analysis skills across hardware-software boundaries
 * Comfort working in a lab environment with physical devices or instruments

Strong Plus (Not Required)

 * Experience testing web applications, APIs, and backend services
 * CI/CD pipeline integration (Jenkins, GitHub Actions, GitLab CI, Azure DevOps)
 * Docker or containerized deployments
 * Exposure to cloud-connected systems (AWS, Azure, or GCP)
 * Performance, reliability, or long-duration system testing
 * Observability tools (logs, metrics, traces)

## Description

We build complex, connected scientific instruments that combine embedded software, Linux-based platforms, cloud services, and web applications. This role sits at the system level-where real-world device behavior meets software quality-and ensures our platforms are robust, reliable, and ready for production and field use.
You'll own system-level validation across hardware, firmware, backend services, and web interfaces, working closely with product, firmware, software, and manufacturing teams.
Responsibilities
What You'll Do
System-Level Testing & Validation

 * Design and execute system-level test strategies for Linux-based IoT and connected instrument platforms
 * Validate end-to-end workflows across device firmware, edge services, backend APIs, and web UI
 * Perform functional, integration, regression, performance, and reliability testing
 * Test system behavior under real-world conditions (network latency, device failures, power cycling, upgrades, stress scenarios)

Hardware-Software Integration

 * Test instrument bring-up, initialization, calibration, and recovery across firmware updates and fault conditions
 * Validate operation under environmental and operational stress (temperature, vibration, long-duration runs)
 * Lead and support cross-disciplinary root cause analysis involving software, firmware, electronics, and mechanical subsystems
 * Use logs, telemetry, and lab tools (e.g., multimeter, oscilloscope, logic analyzer) to diagnose complex system issues

Automation & CI/CD (System Focus)

 * Develop and maintain automated tests at the system, API, and web layers (Python preferred)
 * Integrate automated tests into CI/CD pipelines to support continuous quality and release readiness
 * Collaborate with DevOps and development teams on build verification, deployment validation, and pre-production testing

Manufacturing & Field Support (Collaboration-Oriented)

 * Support manufacturing and service teams by validating system-level test coverage and diagnostics
 * Reproduce field and manufacturing issues in lab environments and help drive corrective actions


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