Embedded System Test Engineer - Automation & QA

RadNet, Inc.; New Jersey; Hybrid; USD 90,000 - 120,000; Full time

Job summary

Checkpoint Systems in New Jersey is seeking a System Test Engineer to validate complex embedded hardware–software systems, emphasizing automation, repeatability, and modern software practices.

You will develop system-level test plans, perform end-to-end validation of RFID readers and edge devices, and collaborate across hardware, firmware, SDET, and product teams to ensure readiness for internal releases and field deployments.

Qualifications

• BS in Electrical/Computer/Software or related field, or equivalent experience.
• Experience with system-level testing of embedded hardware–software.
• 4+ years in QA/validation of integrated systems.

Responsibilities

• Develop system-level test plans and traceability matrices.
• Validate end-to-end device workflows including provisioning, configuration, upgrades.
• Collaborate with SDET and hardware teams to expand automated coverage.
• Execute tests on real hardware or simulations and report defects.
• Provide validation estimates and risk analyses.

Skills

Embedded Linux

Test automation

Python

CI/CD

REST APIs

MQTT

Hardware bring-up

Networking basics

Education

Bachelor of Science in Engineering

Tools

Docker

Jenkins

PractiTest

VMs

Job description

This open position is on the Quality Assurance (QA) team under the Research and Development organization of Checkpoint Systems. The System Test Engineer (STE) is responsible for validating complete hardware–software systems through rigorous system-level testing, with increasing emphasis on automation, repeatability, and integration with modern software development practices.

The System Test Engineer validates embedded Linux–based devices, including RFID readers and edge computing platforms, by executing and evolving test strategies that cover hardware, firmware, embedded services, networking, device configuration, upgrades, and end-to-end workflows. The role focuses on system behavior, robustness, performance, and risk-based validation, while incorporating automated testing and tooling where appropriate to improve coverage and efficiency.

The ideal candidate works across the full system stack—hardware, embedded firmware, Linux services, device management interfaces, APIs, and external integrations—and collaborates closely with Hardware, Embedded Software, Firmware, SDET, Mechanical, Manufacturing, Field Service, Product Management, and Compliance teams to ensure product readiness for internal release, field trials, and customer deployment.

This position requires strong analytical skills, structured test thinking, ownership of system quality, and the ability to troubleshoot complex cross-domain failures involving hardware, software, networking, and environmental variables. The System Test Engineer reports to the QA Manager and works in close partnership with development teams throughout the product lifecycle.

Location

Job Summary & Requirements

Job Duties:

• Develop, maintain, and execute system-level test plans, test cases, and requirement traceability matrices supporting validation of complex embedded systems.
• Perform end-to-end validation of device workflows, including provisioning, configuration, diagnostics, normal operation, upgrades, rollback, and recovery scenarios.
• Create and maintain manual and automated system test cases validating functional correctness, robustness, performance, stability, and error handling under real-world conditions.
• Collaborate with SDET and software engineering teams to extend automated regression coverage at the system and workflow level, including API-driven and scenario-based validation.
• Execute validation using real hardware, simulators, or hardware-in-the-loop configurations, as appropriate for test objectives.
• Validate embedded Linux services, startup sequencing, service dependencies, logging behavior, and system health indicators.
• Test system communications and integrations, including REST APIs, message-based protocols (e.g., MQTT), and device-to-device or device-to-cloud networking flows.
• Work with firmware and hardware engineering to validate low-level integration points, including drivers, sensors, interfaces, power behavior, and networking components.
• Perform regression testing to confirm functionality, performance, and reliability are preserved across software, firmware, and configuration updates.
• Support Manufacturing and Operations by validating factory provisioning, configuration, and installation processes for embedded devices.
• Participate in beta programs and field support by reproducing customer-reported issues, validating fixes, and converting high-value scenarios into repeatable test cases.
• Track, document, and communicate defects with clear reproduction steps, logs, measurements, and validation evidence, support triage and root cause analysis with development teams.
• Coordinate and participate in validation reviews, defect reviews, and release readiness assessments with cross-functional stakeholders.
• Document test strategies, test results, risks, limitations, and release validation status to support informed go/no-go decisions.
• Provide validation estimates, track progress, communicate risks, and support project planning and execution.

Education:

• Bachelor of Science degree in an Engineering discipline (Electrical, Computer, Software, or related), or equivalent professional experience.
• Candidates without formal engineering education must demonstrate that system-level testing or engineering work has been a primary professional responsibility.

Experience:

• 4+ years of experience in system testing, validation engineering, or QA roles involving integrated hardware–software systems.
• Experience testing systems composed of embedded devices, electronics, networking hardware, and software applications.
• Hands-on experience executing validation on physical hardware and diagnosing failures across hardware, firmware, and software layers.
• Prior experience working with test management tools (e.g., PractiTest or equivalent) is a strong plus.
• Exposure to test automation, scripting, or close collaboration with SDET / automation engineers is highly desirable.

Knowledge, Skills & Abilities:

• Experience with embedded Linux (system services, boot/startup sequencing, package management, log analysis).
• Scripting or automation experience (e.g., Python, Bash) to accelerate validation, data collection, and regression testing.
• Experience with performance test tools.
• Familiarity with CI/CD concepts and integrating automated tests into build and release pipelines (e.g., Jenkins, GitLab CI, Azure DevOps).
• Working knowledge of networking fundamentals and troubleshooting (TCP/IP, DHCP, DNS, routing, firewalls; Wireshark/tcpdump).
• Experience testing REST APIs and message-based protocols (e.g., MQTT) using tools like Postman, curl, or custom clients.
• Exposure to hardware bring-up or debugging (serial console/JTAG basics), sensors/interfaces (I2C/SPI/UART), and power-cycle/upgrade recovery testing.
• Experience with virtualization/containers and test environments (Docker, VMs) to support scalable system testing.
• Domain exposure to RFID/IoT/edge devices, device management, and field deployment considerations is a plus.

CCLprovides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment.All qualified applicants will receive consideration for employmentwithout regard to race, color, religion, age, sex, national origin, disability status, genetics,protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

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