Battery Testing QA Engineer

HCLTech is looking for a highly talented and self-motivated Battery Testing QA Engineer to join it in advancing the technological world through innovation and creativity.

Job Title: Battery Testing QA Engineer

Job ID: 83467

Position Type: Full Time

Location: Cupertino, CA

Key Responsibilities

Battery Testing & Validation (80%)

• Perform manual validation and testing of battery cells, modules, packs, and Battery Management Systems (BMS).

• Design, review, and execute test plans, test cases, and test procedures for:

• Performance testing

• Safety testing

• Reliability and lifecycle testing

• Environmental and stress testing

• Analyze battery behavior under various operating conditions (charge/discharge cycles, thermal conditions, aging, etc.).

• Validate test results against specifications, standards, and requirements.

• Identify defects, anomalies, and failure modes; perform root cause analysis.

• Collaborate with design, firmware, and systems teams to debug issues and improve battery quality.

• Maintain detailed test reports, validation summaries, and defect tracking documentation.

• Ensure compliance with relevant industry standards (e.g., automotive, energy storage, safety norms).

Automation, Python & AI Focus (20%)

• Develop Python-based automation scripts to:

• Automate test execution and data collection

• Process large volumes of battery test data

• Reduce repetitive manual testing tasks

• Create internal tools and utilities to improve testing productivity and accuracy.

• Apply AI / ML techniques for:

• Test data analysis and trend detection

• Anomaly detection in battery parameters

• Predictive insights for battery performance or degradation

• Integrate automation tools with existing test benches, hardware interfaces, or data pipelines.

• Continuously improve test frameworks using data-driven and AI-assisted approaches.

Mandatory Skills

Core Skills

• Strong experience in Battery Testing and Validation (Manual QA)

• Solid understanding of:

• Battery fundamentals (Li-ion / EV / Energy Storage preferred)

• Charge–discharge cycles, SoC, SoH, thermal behavior, aging

• Hands-on experience with test equipment and validation setups

• Strong analytical and problem-solving skills

Automation & AI Skills

• Proficiency in Python for automation and data analysis

• Experience building custom test tools or frameworks

• Familiarity with AI / ML concepts (e.g., regression, anomaly detection, pattern recognition)

• Experience using libraries such as NumPy, Pandas, Matplotlib, or basic ML libraries

• Ability to translate testing challenges into automation or AI-driven solutions

Good-to-Have Skills

• Experience with Battery Management Systems (BMS)

• Exposure to hardware-in-the-loop (HIL) or lab-based testing

• Knowledge of automotive or energy storage standards

• Familiarity with version control (Git) and test reporting tools

• Experience working in cross-functional engineering teams

Education

• Bachelor’s or Master’s degree in Electrical, Electronics, Mechanical, Automotive, or related engineering disciplines

Pay and Benefits

Pay Range Minimum: $115000/Year

Pay Range Maximum: $176000/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 secure@hcltech.com for investigation.

Compensation and Benefits

A candidate’s pay within the range will depend on their work location, 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.