A123 Systems · 1 month ago
Sales Application Engineer, BESS
California, United States
Full-time
Hybrid
Senior Level
7+ years expA123 Systems, LLC is a leading developer and manufacturer of lithium-ion batteries and battery systems for the transportation and commercial markets. They are seeking a highly motivated and customer-focused Senior Sales Application Engineer with deep technical knowledge in lithium-ion battery systems to bridge the gap between customer product requirements and A123 technology.
EnergyEnergy StorageManufacturingRenewable EnergyTransportation
Responsibilities
Act as the primary technical interface to customers during the sales and new business acquisition process
Understand customer applications and requirements; translate and size them into tailored lithium battery solutions
Provide technical support during pre-sales, including system architecture recommendations, performance modeling, and specification alignment
Develop and deliver compelling technical presentations, proposals, and product demonstrations
Lead technical discussions and support commercial activities, including bid preparation, pricing and contract negotiations
Collaborate with R&D, product management, and manufacturing teams to support custom product development and help resolve customer application integration challenges
Collect market and customer requirements and evaluate product compliance
Maintain up-to-date knowledge of industry trends, competitive products, and battery regulations
Support post-sales activities by working closely with field service and quality teams to resolve customer issues
Travel to customer sites, trade shows, technical workshops, etc
Qualification
Required
Bachelor's or Master's degree in Electrical Engineering, Chemical Engineering, Mechanical Engineering, or a related field
7–10 years of experience in a customer-facing technical sales or application engineering role, preferably in the lithium battery or energy storage sector
Deep understanding of lithium-ion battery chemistries, cell design, BMS, pack integration, and safety standards
Proficiency in Microsoft Office (Word, PowerPoint, Excel, etc.)
Excellent communication and interpersonal skills, with proven ability to influence and manage relationships at all levels
Strong problem-solving skills with the ability to handle complex technical inquiries
Fluent in English
Domestic & international travel expected
Preferred
Additional language skills e.g., Mandarin are a plus
Company
A123 Systems
A123 Systems is a manufacturer of lithium-ion batteries and battery systems for the transportation, electric grid, and commercial markets.
1001-5000 employees
H1B Sponsorship
A123 Systems has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (23)
2024 (16)
2023 (12)
2022 (21)
2021 (17)
2020 (40)
Funding
Current Stage
Public CompanyTotal Funding
$507.86MKey Investors
General ElectricGE Commercial FinanceMadison Parker Capital
2013-01-25Acquired
2012-06-07Post Ipo Equity· $50M
2009-12-16Grant· $2.86M
Leadership Team
Yet-Ming Chiang
Co-Founder
Recent News
2025-12-29
SNS Insider pvt ltd
2025-12-02
Company data provided by crunchbase