Embedded Systems Test Engineer (Linux / Avionics Testing)

We are seeking a highly motivated Embedded Systems Test Engineer to join our team in Brea, California. This role is responsible for validating embedded software and hardware systems through detailed test execution, defect tracking, and requirements-based verification activities. The ideal candidate will possess strong Linux expertise, excellent troubleshooting skills, and experience testing integrated hardware/software products. Experience supporting In-Flight Entertainment (IFE), avionics, or embedded systems environments is highly desirable., * Execute manual and automated test cases to validate system functionality and performance.

• Analyze system requirements and derive detailed test procedures, test cases, and validation scenarios.
• Record, document, and communicate test results, findings, and execution status.
• Identify, log, track, and verify defect resolution throughout the software development lifecycle.
• Collaborate with software, hardware, systems, and integration teams to troubleshoot issues and validate fixes.
• Perform system-level testing in integrated hardware and software environments.
• Review requirements and ensure complete test coverage across functional and non-functional requirements.
• Support regression, integration, verification, and validation testing activities.
• Maintain test documentation, test reports, and defect metrics.
• Participate in test planning, execution reviews, and release readiness assessments.

Work Authorization: Must be authorized to work in the United States., * Bachelor’s degree in Computer Science, Electrical Engineering, Computer Engineering, or related technical field.

• 3+ years of experience in software, embedded, systems, or integration testing.
• Strong analytical, debugging, and troubleshooting skills.
• Experience testing embedded systems, Linux-based platforms, or hardware/software integrated solutions.
• Proficiency with Linux command line tools and administrative functions.
• Strong understanding of Linux file systems, including:
• File and directory management
• Library management
• Log collection and analysis
• System monitoring and diagnostics
• Knowledge of Linux networking fundamentals, including:
• TCP/IP
• Network configuration
• Connectivity troubleshooting
• Network management operations
• Experience using defect tracking and test management tools such as Jira, Azure DevOps, ALM, or similar.
• Ability to write clear and detailed test procedures from system requirements.
• Excellent verbal and written communication skills.

Preferred Qualifications

• Experience in In-Flight Entertainment (IFE) systems.
• Experience testing avionics systems.
• Experience with embedded Linux platforms.
• Familiarity with communication protocols, device integration, and hardware interfaces.
• Experience working within regulated aerospace or transportation environments.
• Knowledge of system verification and validation methodologies.

Technical Skills

• Linux (Ubuntu, Red Hat, CentOS, Embedded Linux)
• System Testing
• Integration Testing
• Verification & Validation (V&V)
• Defect Management
• Test Case Development
• Requirements-Based Testing
• Networking & Troubleshooting
• Hardware/Software Integration Testing
• Jira, Azure DevOps, Test Management Tools

Desired Characteristics

• Detail-oriented with a strong quality mindset.
• Ability to independently investigate and resolve complex technical issues.
• Strong collaboration skills when working with cross-functional engineering teams.
• Comfortable working in a fast-paced product development environment.
• Excellent problem-solving and root-cause analysis capabilities.

Pay Range Minimum: $ 70000 per year

Pay Range Maximum: $ 107000 per year

HCLTech is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to for investigation.

A candidate s pay within the range will depend on their skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance; employee assistance program; 401(k) retirement plan; 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year); and 10 paid holidays per year

How You ll Grow

At HCLTech, we offer continuous opportunities for you to find your spark and grow with us. We want you to be happy and satisfied with your role and to really learn what type of work sparks your brilliance the best. Throughout your time with us, we offer transparent communication with senior-level employees, learning and career development programs at every level, and opportunities to experiment in different roles or even pivot industries. We believe that you should be in control of your career with unlimited opportunities to find the role that fits you best.