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Job Title:  Sr Principal Li-ion Test Engineer

Requisition ID:  3074

Reading, PA, US, 19605

Home-based Position:  No
Regular/Temporary:  Regular
Job Type:  Full-Time
Job Description: 

EnerSys is the global leader in stored energy solutions for industrial applications. We have over thirty manufacturing and assembly plants worldwide servicing over 10,000 customers in more than 100 countries. Worldwide headquarters are located in Reading, PA, USA with regional headquarters in Europe and Asia. We complement our extensive line of Motive Power and Energy Systems with a full range of integrated services and systems. With sales and service locations throughout the world, and over 100 years of battery experience, EnerSys is the power/full solution for stored DC power products. We continue to grow in our industry by ensuring all employees possess the following core competencies: customer focused, team player, engaged, ethical, strong communication skills, and works safely.


Job Purpose

With limited supervision, responsible for complex activities relating to the design, development, and execution of manual and automated test cases and test fixtures. Responsibilities include test code development, interpretation, and implementation of specifications, and technical leadership of the test engineering team

Essential Duties and Responsibilities

  • Provide interface between management and the test team for efficient dissemination of project and design information.
  • Assist in the definition and implementation of detailed test specifications, verification and validation test plans, and internal processes related to test engineering for prototypes and new products.
  • Design, develop, execute, and verify test software before release to production and for sustaining projects.
  • Produce quality test architectural documentation, flowcharts, state diagrams, schematics, and reports for test projects.
  • Draft and provide description and build details for custom apparatus.
  • Write test scripts in Python, C, Visual Basic, LabView or other applicable languages to automate product verification testing.
  • Define method of test to validate products and estimate costs to execute test plan.
  • Establish a method for recording and maintaining test parameters and results.
  • Determine list of required off-the-shelf equipment and test software platforms.
  • Assemble design prototypes for test purposes and provide feedback to design engineers.
  • Identify, promote and oversee coordination of initiatives within the test engineering group for improved efficiency and technical knowledge advancement.
  • Lead team of test engineers and technicians by assigning and prioritizing tasks, leading design reviews; provide technical direction for junior engineers, and ensure test software is developed efficiently.
  • Communicate status, risks, issues, and recommended mitigation to test manager.
  • Provide weekly status/progress updates to the Test manager.
  • Attend project meetings where the test group requires representation.
  • Assist engineering management with performance feedback for evaluations.


  • Bachelor's Degree in a related engineering field
  • 8-10 years experience with test engineering, testing, troubleshooting
  • Excellent written and verbal communication skills
  • Experience with test code development methodology
  • Ability to work independently and with test teams
  • Good interpersonal skills and documentation discipline
  • Hands-on experience in a fast-paced environment
  • General knowledge of documentation and release process
  • Development experience with test communication protocols
  • Python, LabView, and C programming experience
  • Excellent analytical skills
  • Ability to operate electronic test equipment
  • Experience collaborating with department team members
  • Experience maintaining safe work practices and environment
  • Ability to handle multiple tasks simultaneously and to set own priorities
  • Basic understanding of power conversion topologies (buck, boost, buck-boost, NPC, H- Bridge, resonant)
  • Intermediate skills with Microsoft Office applications


  • Experience with automated test equipment, test software scripts (LabView), schematic capture (Protel), CAD (Vellum, Autocad)
  • Comfortable working with 'mains' electrical supply
  • Ability to read engineering drawings
  • Thorough understanding of power electronics
  • Familiarity of regulatory requirements

General Job Requirements

  • This position will work in an office setting, expect minimal physical demands.


EnerSys provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.  EEO/M/F/Vets/Disabled

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Pay Transparency Nondiscrimination

Nearest Major Market: Reading PA

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