Battery Storage Field Engineer — Deployment & Support

SES; Massachusetts; On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health coverage

Equity/stock options

NYSE-listed company

Job summary

SES AI Corp. is seeking a Field Application Engineer to lead field deployment, technical support and after-sales service for advanced battery and energy-storage systems.

You will support customers through onsite service, phone-based technical assistance, and remote troubleshooting, with responsibilities spanning installation, commissioning, maintenance, and system upgrades. The role requires hands-on experience with both hardware and software, diagnosing system-level issues in batteries, BMS,

Qualifications

• Experience with batteries, BMS, energy-storage systems, power electronics, EV charging systems, or renewable-energy products.
• Experience commissioning or servicing battery packs, BMS, EMS, PCS, inverters, or cloud-connected energy systems.
• Familiarity with battery operating parameters, fault alarms, protection functions, state of charge, and state of health.
• Experience using diagnostic tools such as multimeters, oscilloscopes, CAN analyzers, and data loggers.
• Basic experience with Python, Linux, firmware updates, network configuration, or system-log analysis.
• Knowledge of battery safety, electrical safety, and applicable industry standards.

Responsibilities

• Serve as the primary technical contact for customers and answer product-related questions by phone, email, and remote-support tools.
• Lead onsite installation, commissioning, configuration, testing, maintenance, and system upgrades.
• Troubleshoot hardware, software, communication, and system-integration issues involving battery packs, BMS, EMS, PCS, inverters, gateways, and edge devices.
• Analyze system logs, operating data, fault codes, and alarms to identify root causes and recommend corrective actions.
• Work with engineering and quality teams to resolve field issues, verify solutions, and improve product reliability.
• Develop service procedures, troubleshooting guides, technical documentation, and customer-training materials.
• Provide occasional after-hours support and travel domestically to customer and project sites as required.

Skills

Batteries & BMS

Energy storage

Power electronics

EV charging systems

Renewable energy products

Diagnostics tools

Tools

Multimeters

Oscilloscopes

CAN analyzers

Data loggers

Python

Linux

Job description

SES AI Corp. is seeking a Field Application Engineer to lead field deployment, technical support and after-sales service for advanced battery and energy-storage systems.

You will support customers through onsite service, phone-based technical assistance, and remote troubleshooting, with responsibilities spanning installation, commissioning, maintenance, and system upgrades. The role requires hands-on experience with both hardware and software, diagnosing system-level issues in batteries, BMS,