RONALD GUZMAN
Chula Vista
Summary
Results-driven Test Engineer with expertise in software and hardware testing, troubleshooting, and system operations. Leads teams in process integration to enhance productivity and align with organizational goals. Focused on driving efficiency and delivering service value through effective collaboration and individual contributions.
Overview
20
20
years of professional experience
Work History
Electromechanical Test Engineer
Digital Force Technologies
San Diego
09.2024 - 01.2026
- Conducted functional, performance, stress and regression tests.
- Executed test cases to validate software functionality and performance, ensuring alignment with specifications.
- Collaborated with development teams to identify and resolve defects.
- Documented test results and maintained comprehensive records of testing processes to support quality assurance.
- Developed test plans and strategies for products.
- Assisted in troubleshooting issues reported by users or stakeholders.
- Recorded defects identified during testing processes to facilitate effective resolution.
Associate Test Engineer
Tesla
San Diego
05.2019 - 04.2024
- Collaborated with four Tesla sites to implement software and label hardware, improving tracking of engineering issues and reducing hardware downtime
- Utilized JIRA tool for tracking and managing defects throughout the entire SDLC process.
- Implemented and maintained FLUX issue tracking software to enhance issue resolution at Tesla San Diego
- Created step-by-step troubleshooting documents for hardware and software issues in Test & Validation lab, streamlining issue resolution process
- Performed troubleshooting and repair on all environmental chambers in the Test & Validation lab
- Maintained test equipment and built test fixtures for engineering cell testing.
- Performed mechanical and electrical testing to evaluate new and existing products.
- Participated in continuous improvement activities of testing services team.
- Performed all purchasing and price comparisons for the Test & Validation teams at Tesla San Diego
Test & Validation Engineer
Maxwell Technologies
San Diego
04.2014 - 05.2019
- Maintained test apparatus and equipment, adjusting components to ensure testing accuracy and reliability
- Troubleshooting test procedures and refining test environments to meet the rigorous demands of cell testing
- Collaborated with design and manufacturing engineers, identifying and resolving potential product issues during early production stages
- Analyzed test data and documented results, providing detailed reports that guided engineering adjustments and improvements
- Conducted thorough environmental testing on entire product line to ensure compliance with safety standards.
Senior Test & Validation Technician
Maxwell Technologies
San Diego
06.2009 - 04.2014
- Performed all small & large capacitor cell testing in the Test & Validation Laboratory
- Collaborated with program management to define timelines and report on test progress and key milestones
- Learned theory of operation and test processes for Maxwell module products
- Developed and validated test fixtures and processes for basic characterization testing
- Executed drop and vibration tests to evaluate product durability.
Senior Test Technician II
Overland Storage
San Diego
01.2006 - 06.2009
- Conducted design verification tests to collect data for validating product specifications and identifying product deficiencies
- Supported and maintained ongoing reliability testing activities to assess product durability and performance over time
- Conducted temperature and humidity tests in controlled environments to evaluate product performance under varying conditions
- Conducted drop and vibration tests to analyze product durability and resistance to physical stress
- Performed operational tests and isolated faults on systems and equipment to ensure functionality and reliability
- Captured traces and provided input to engineering personnel to resolve product deficiencies
- Worked with schematics, diagrams, product specifications, written and verbal descriptions, layouts, or defined plans to perform testing, checkout and troubleshooting functions
- Proficient in the use of diagnostic equipment including, but not limited to, digital and analog multimeters, oscilloscopes, power analyzers, acoustic measuring equipment, signal generators, AC and DC power supplies, environmental chambers, and other specialized test devices
- Created test plans and test reports
Education
Bachelor of Science (B.S.) - Electronics Engineering Technology
I.T.T Technical Institute
San Diego06.2003
Skills
- Arbin Test Equipment
- Bitrode Test Equipment
- Test Automation
- Functional Testing
- Stress Testing
- Regression Testing
- Design Verification
- System verification
- Test Planning
- Creating Test Cases
- Test scripts
- Test Documentation
- Test Management Tools
- Defect tracking
- Bug Reporting
- Quality Control
- Troubleshooting
- Software Debugging
- Continuous Integration
- JIRA
- Cross-Functional Teamwork
- Team Collaboration
- Problem-Solving
- Defect tracking
References
References available upon request
Timeline
Electromechanical Test Engineer
Digital Force Technologies
09.2024 - 01.2026
Associate Test Engineer
Tesla
05.2019 - 04.2024
Test & Validation Engineer
Maxwell Technologies
04.2014 - 05.2019
Senior Test & Validation Technician
Maxwell Technologies
06.2009 - 04.2014
Senior Test Technician II
Overland Storage
01.2006 - 06.2009
Bachelor of Science (B.S.) - Electronics Engineering Technology
I.T.T Technical Institute