New 
Test Engineer - Charging
 YOH Services LLC | |
401(k)
| |
 United States, California, Mountain View | |
 Nov 11, 2026 | |
|
Test Engineer - Charging
Location: Charging test site(s), with occasional travel to new sites We are seeking Test Engineers to execute DC fast charging (DCFC) acceptance testing, support charging-site bring-up, automate repeatable test cases, and validate charging equipment across multiple vendors. Important: Candidates should have prior experience working with Tesla, Rivian, Lucid, ChargePoint, Electrify America, or another EV charging company. Scope: * Execute prioritized test cases covering functionality, power delivery and sharing, interoperability, thermal performance, efficiency, fault response, OCPP back-end functionality, and reliability. * Coordinate vehicle availability with Operations and execute testing using fleet vehicles or EV/battery emulators. * Collect data from power analyzers, thermal cameras, thermocouples, chargers, vehicles, and OCPP logs; document pass/fail results with supporting evidence. * Log defects with reproduction steps and supporting data, follow vendor root-cause analysis and fixes, and perform regression testing. * Track uptime, connectivity, and session-success KPIs against established targets. * Develop vendor-agnostic, version-controlled scripts for OCPP sessions, power-sharing runs, endurance cycles, KPI calculations, and other repeatable test cases. * Build data-processing tools that combine instrument and log data and calculate results against pass/fail limits. * Support new test-site bring-up, including instrumentation installation and calibration, network and data-logging setup, and vendor commissioning. * Maintain reusable bring-up checklists and test-setup diagrams. * Follow high-voltage safety procedures, lockout/tagout requirements, and site rules; stop testing when conditions are unsafe. Required: * Bachelor's degree in Electrical, Electronics, or Computer Engineering, or equivalent experience. * 3+ years of hardware test or validation experience with power electronics, EV charging, or energy systems. * Safe hands-on experience with high-voltage DC and 480 VAC three-phase equipment. * Experience using power analyzers, oscilloscopes, current and voltage probes, thermal cameras, and DAQ systems. * Proficiency with Python or similar scripting languages for test automation and data analysis. * Experience with Git. Pluses: * Experience with CCS, NACS/SAE J3400, ISO 15118, DIN 70121, OCPP, UL 2202, or IEC 61851. * Experience with EV/battery emulators or CharIN conformance testing. Estimated Min Rate: $40.00 Estimated Max Rate: $50.00/hr+. Depends on work experience What's In It for You? We welcome you to be a part of the largest and legendary global staffing companies to meet your career aspirations. Yoh's network of client companies has been employing professionals like you for over 65 years in the U.S., UK and Canada. Join Yoh's extensive talent community that will provide you with access to Yoh's vast network of opportunities and gain access to this exclusive opportunity available to you. Benefit eligibility is in accordance with applicable laws and client requirements. Benefits include:
Note: Any pay ranges displayed are estimations. Actual pay is determined by an applicant's experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply. Yoh, a Day & Zimmermann company, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Visit https://www.yoh.com/applicants-with-disabilities to contact us if you are an individual with a disability and require accommodation in the application process. For California applicants, qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All of the material job duties described in this posting are job duties for which a criminal history may have a direct, adverse, and negative relationship potentially resulting in the withdrawal of a conditional offer of employment. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. By applying and submitting your resume, you authorize Yoh to review and reformat your resume to meet Yoh's hiring clients' preferences. To learn more about Yoh's privacy practices, please see our Candidate Privacy Notice: https://www.yoh.com/privacy-notice Stay Safe During Your Job Search Fraudulent recruiting communications have become increasingly common. Emails from Yoh recruiters will only come from an @yoh.com email address. Yoh will never ask candidates to pay fees, purchase equipment, send gift cards, or transfer funds as part of the recruiting or hiring process. If you receive a communication that appears suspicious or requests payment, contact Yoh directly before responding or sharing personal information. | |