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Digital Dynamics, Inc. • Scotts Valley, California, United States
Role & seniority: Senior Software Quality Assurance Engineer; hands-on role leading quality efforts across test planning, automation, and hardware-in-the-loop validation.
Stack/tools: Python for test automation; Linux environments; embedded systems (Raspberry Pi or similar); hardware test benches; DMMs; GitHub; Jira; Testrail.
Develop and maintain automated HIL test scripts in Python; create and execute test plans for hardware-integrated products.
Lead test planning, execution, defect analysis, and continuous improvement; track coverage/results via Jira and Testrail.
Maintain Linux-based test environments, troubleshoot issues, assemble test benches, and collaborate across software, hardware, and systems teams; document procedures and present findings.
BS in Electrical/Computer Engineering or related field; 3–5 years QA experience in embedded/hardware environments.
Proficiency in Python for automation; strong Linux skills; experience with Raspberry Pi or similar embedded platforms.
Familiarity with GitHub, Jira, and test management tools (Testrail); ability to develop hardware-focused test plans.
Experience with DMMs, wiring harnesses, and test fixtures; strong written/verbal communication.
Prior experience with hardware-in-the-loop validation and system-level testing in semiconductor/display domains.
Experience presenting defect trends and risk assessments to cross-funct
Job Title: Senior Software Quality Assurance Engineer
Location: Scotts Valley, CA
Department: Engineering
About Digital Dynamics, Inc. (DDI)
Digital Dynamics, Inc. (DDI) designs and manufactures real-time machine and process controllers used by leading OEMs in the semiconductor and display manufacturing industries. Founded in 1977 and headquartered in Scotts Valley, CA, DDI is a 100% employee-owned ESOP company. Every employee-owner contributes to our culture of innovation, accountability, and continuous improvement.
Position Overview
The Senior QA Engineer is a hands-on engineering role responsible for defining test strategies, developing automation solutions, and executing hardware-in-the-loop (HIL) validation to ensure quality and reliability of DDI’s software-based control systems. This role leads quality efforts across test planning, execution, defect analysis, and continuous improvement.
The ideal candidate has extensive experience in embedded system validation, is proficient in Python and Linux environments, and can develop comprehensive test plans for hardware products. This role requires strong technical communication skills and collaboration across software, hardware, and systems engineering teams.
Key Responsibilities
Test Strategy, Development & Execution
Develop and maintain automated test scripts for hardware-in-the-loop (HIL) validation using Python. Create and execute detailed test plans for hardware-integrated products. Support development of unit and integration tests in collaboration with software teams. Perform manual, exploratory, and system-level testing using embedded platforms and lab equipment. Use Testrail or equivalent test management tools to track and manage test coverage and results.
System Administration & Test Infrastructure
Access and maintain Linux-based test environments to monitor execution health. Troubleshoot and debug software, hardware, or configuration-related test issues. Assemble and maintain basic test bench setups, wiring harnesses, and instrumentation (e.g., DMMs).
Tools & Test Lifecycle Management
Track defects and participate in sprint-based quality reviews using Jira. Manage test organization and collaboration through GitHub.
Documentation & Reporting
Maintain clear documentation of test procedures, configurations, and results. Present defect trends, risks, and improvement recommendations to cross-functional teams.
Collaboration
Partner with software development, hardware engineering, and quality teams to define test strategies and improve reliability. Provide focused quality feedback during design reviews and post-test evaluations.
Required Qualifications
Education & Experience
Bachelor’s degree in Electrical Engineering, Computer Engineering, or related technical field (or equivalent experience). Minimum 3-5 years of experience as a QA Engineer testing embedded or hardware-related environments. Proven ability to develop test plans for hardware-based products. Hands-on experience with test management tools such as Testrail.
Core Technical Skills
Proficient in Python for test automation and scripting. Experience with Linux systems and command-line utilities. Hands-on experience with Raspberry Pi platforms or similar embedded systems. Familiarity with GitHub and Jira for code tracking and issue management. Skilled in using digital multimeters (DMMs) and performing basic electrical measurements. Experience assembling or troubleshooting wiring harnesses and test fixtures.
Soft Skills
Strong written and verbal communication with the ability to clearly present technical issues. Detail-oriented, analytical, and proactive problem solver. Ability to work independently and lead quality efforts with minimal supervision.
Equal Employment Opportunity (EEO) Statement
Digital Dynamics, Inc. is an Equal Opportunity Employer. We do not discriminate based on race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, veteran status, genetic information, or any other protected classification under federal, state, or local law. All employment decisions are based on qualifications, merit, and business need.