Embedded Systems QA Engineer

About the role

We are a global climate technologies company engineered for sustainability. We create sustainable and efficient residential, commercial and industrial spaces through HVACR technologies. We protect temperature-sensitive goods throughout the cold chain. And we bring comfort to people globally. Best-in-class engineering, design and manufacturing combined with category-leading brands in compression, controls, software and monitoring solutions result in next-generation climate technology that is built for the needs of the world ahead. Whether you are a professional looking for a career change, an undergraduate student exploring your first opportunity, or recent graduate with an advanced degree, we have opportunities that will allow you to innovate, be challenged and make an impact. Join our team and start your journey today! QA Engineer - Refrigeration & HVAC Controls Job Summary We're looking for a QA Engineer who can do more than execute test cases. This role sits at the intersection of software, controls, and field application, so it requires someone comfortable validating systems end-to-end-not just checking boxes. You'll be responsible for testing controller applications, supporting field issues, and contributing to documentation that ensures products are deployed correctly in real-world environments. Why This Role Matters This role directly impacts product quality, field reliability, and customer satisfaction. The QA Engineer will help ensure that what is designed in development works in the field-under real conditions, with real constraints.

Responsibilities

• QA Testing & Validation
• Perform functional and system-level QA testing of:
• Refrigeration Case Controllers
• CO2 High Pressure Valve controllers
• HVAC Zone control applications:
• Validate control logic, alarms, fail-safes, and system interactions
• Develop, execute, and maintain test plans, test cases, and test reports
• Perform regression and integration testing across firmware and application updates
• Identify defects, document root cause observations, and work closely with engineering for resolution
• Field & Product Support
• Participate in field support calls to troubleshoot real-world issues
• Analyze logs, system behavior, and configurations to diagnose problems Provide feedback to development teams based on field learnings
• Support beta deployments, including validation, feedback collection, and issue tracking
• Documentation & Controls Understanding
• Read, interpret, and validate:
• Control schematics
• Wiring diagrams
• o Sequences of Operation (SOPs)
• o Methods of Procedure (MOPs)
• Contribute to or review technical documentation to ensure alignment with product behavior
• Help bridge gaps between documentation, implementation, and field expectations
• Cross-Functional Collaboration
• Work closely with development, product management, and field teams
• Participate in test planning, design reviews, and release readiness discussions Provide practical input on usability, reliability, and deployment risks
• Required Qualifications
• Associate or Bachelor's degree in engineering (Electrical, Mechanical, Controls, or related field) or equivalent experience
• 2-5 years of experience in QA, testing, or field support (HVAC/Refrigeration preferred)
• Strong understanding of testing methodologies and defect tracking
• Ability to read and interpret electrical schematics and wiring diagrams
• Hands-on experience with embedded systems or controller-based products
• Strong analytical and problem-solving skills
• Ability to work independently and handle ambiguity in real-world scenarios

Requirements

• Basic knowledge of Controls Engineering (PID loops, sensors, actuators, control logic)
• Familiarity with CO2 refrigeration systems or HVAC applications
• Experience with tools such as: Modbus/BACnet communication tools
• Logging/diagnostic tools
• Test automation frameworks (where applicable)
• Experience supporting field deployments or working directly with customers
• Key Traits for Success
• Handle multiple tasks in parallel
• Not just task-oriented but thinks critically about system behavior
• Comfortable moving between lab testing and real-world field issues
• Strong attention to detail without losing sight of system-level impact
• Willingness to dig deeper than symptoms and understand root causes
• Clear communicator across engineering and non-engineering teams
• Our Commitment to Our People
• Our employees are our greatest strength. We believe that our culture of passion, openness, and collaboration empowers us to work toward the same goal - to make the world a better place. We invest in the

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