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Intelliswift - An LTTS Company • Sunnyvale, California, United States
Role & seniority: Battery Validation Engineer (mid-level to senior; 3+ years required, 5+ preferred)
Stack/tools: Li-ion battery test equipment (Maccors, Arbins), general lab equipment (oscilloscopes, power supplies, electronic loads, functional generators), scripting (Python), test planning, DOE/statistical tools (JMP/Minitab)
Execute test plans and allocate testing resources; develop scalable validation processes across programs
Conduct electrical and thermal characterization, develop test boards/fixtures, and report results to design teams
Lead external vendor/test-lab activities, root-cause analysis, and hardware integration support; weekly status reporting
3+ years in Li-ion battery validation; experience with lab testing equipment and battery test rigs
Python scripting; familiarity with Maccors/Arbins
Experience with consumer electronics validation and basic understanding of battery performance factors
5+ years in Li-ion battery validation; knowledge of battery protection circuits and communication protocols (I2C, UART)
Strong analog/digital EE background, schematic/layout tools, familiarity with JMP/Minitab, solid interpersonal and communication skills
Location & work type: Sunnyvale, CA; onsite, full-time with LTTS; potential domestic/international travel to suppliers in Asia and US labs
Job Title: Battery Validation Engineer
Location: Sunnyvale, CA - Onsite
Employment Type: Full-Time with L&T Technology Services (LTTS).
As a battery validation engineer, you will be part of the battery team working closely with the cross functional partners in systems engineering, thermal engineering, software engineering to ensure that the battery module meets systems level performance metrics.
Battery Validation Engineer Responsibilities Work with validation engineers to execute test plans. Ensure testing resources (test channels, equipment, people) are correctly allocated. Develop processes, frameworks and best practices to scale validation across multiple programs. Electrical and thermal battery characterization in system under different usage scenarios. Develop detailed test plans for various product categories and execute test plans. Develop test boards, test fixtures to validate the performance of batteries. Direct external vendors and test labs to develop test equipment and perform testing as needed. Report results to a broad audience and work with design teams to improve performance. Support technical root cause analysis and resolution of issues found during testing. Support hardware integration related to interfacing hardware and connection issues. Develop processes, frameworks and best practices to scale testing and validation across multiple programs. Proactively work to resolve problems that arise related to new testing protocols. Weekly reporting of test status, equipment utilizations, issues, and forecasting. Identify system interactions and design factors which impact battery module performance such as charge time affected by system thermals and battery age, interaction with accessories and help assist product claims on battery runtimes. Battery gas gauge performance characterization at both module and system level. Domestic and/or international travel to suppliers in Asia and test labs in the US.
Minimum Qualifications
B. S. in Electrical / Materials/Mechanical or Chemical Engineering.
Preferred Qualifications 5+ years of experience in working on validation of Li-ion batteries. Strong understanding of battery protection circuits, communication protocols such as I2C, UART, chargers. Strong EE background in analog and digital circuits, schematic and layout capture tools. Familiarity with statistical tools, DOEs and packages such as JMP/Minitab. Strong interpersonal skills and experience to work effectively in a dynamic team-oriented environment. Proven communication skills.