---
title: 'Test Engineer at SES'
canonical: 'https://feeny.ai/job/test-engineer-ses-shanghai-vx4rnx9npgqy'
type: 'job'
last_seen: '2026-09-11'
---

# Test Engineer at SES

- **Company:** SES
- **Location:** Shanghai, China
- **Posted:** 2023-01-16
- **Last confirmed live:** 2026-09-11
- **Apply:** https://boards.greenhouse.io/sesai/jobs/4186720005?gh_jid=4186720005

## Job description

Test Engineer

## Responsibilities

- Responsible for environmental reliability testing, performance testing and abuse testing of lithium metal battery packs and modules according to the arrangement of the project leader

- Build a test platform according to the test requirements and solve various problems in the test process

- Proficient in office software, responsible for filling in and submitting the original records in the test process

- According to the requirements of the company's laboratory quality management system, correctly operate and maintain the test equipment, correctly dispose the samples in the test process, and comply with the laboratory 5S management requirements to ensure the safety in the test process

- Responsible for assisting the daily management of the laboratory

## Qualifications

- Bachelor’s degree or above, with battery safety testing experience, education requirements can be relaxed

- More than one year working experience in lithium battery related industry

- Experience in lithium battery testing is preferred

- Have strong learning ability and practical ability, can operate related test equipment independently

- Have good professional quality, no legal disputes, no bad hobbies

## About SES

## Company Overview
- **One-liner**: SES AI Corp. is a publicly traded company that develops AI-enhanced high-energy-density Li-Metal and Li-ion batteries for electric vehicles, urban air mobility, drones, energy storage, and robotics.
- **Entity Type**: Public (NYSE: SES)
- **Headquarters**: Woburn, Massachusetts, USA (with major operations in Shanghai, China and Chungju, South Korea)
- **Founded**: 2012
- **Founders**: Dr. Qichao Hu (Founder, Chairman & CEO)

## Core Business
- Primary industry: Advanced battery manufacturing and materials science (Li-Metal and Li-ion), with a strong focus on AI-driven material discovery and battery management.
- Target customers: B2B – automotive OEMs (GM, Honda, Hyundai), drone manufacturers, urban air mobility companies, and energy storage system integrators.
- Mission: “Accelerate the world’s energy transition through material discovery and battery management.”

## Products & Services
- **Li-Metal Battery Cells**: High-energy-density cells in form factors like 30Ah, 100Ah, and 6Ah, designed for EV, UAM, drones, and robotics.
- **Molecular Universe (AI4Science SaaS Platform)**: An AI-driven platform that maps small molecules and deploys AI agents to accelerate electrolyte material discovery for both Li-Metal and Li-ion chemistries.
- **Avatar (AI for Manufacturing & Safety)**: A set of AI solutions that capture manufacturing defects beyond conventional quality control and predict battery health and vehicle value.
- **ESS (Energy Storage Systems)**: Fully integrated hardware/software solutions for data centers and commercial & industrial applications, including battery health and safety management powered by Molecular Universe.

## Market Standing
- **Valuation/Market Cap**: Approximately $1.0 billion (as of mid-2026, per LinkedIn data)
- **Key Metric**: Annual revenue – Not publicly available (SEC filings exist but not summarized in available sources); Total funding – IPO in 2022 (amount not specified in search results)
- **Notable Investors/Partners**: Joint development agreements with General Motors, Honda, and Hyundai – the only Li-Metal battery company with three such major automotive partnerships.
- **Growth Signals**: Opened a new manufacturing facility in Chungju, South Korea; expanded NDAA-compliant drone cell production; Shanghai Giga facility (300,000 sq ft) is one of the largest Li-Metal pilot plants globally. However, LinkedIn shows a 6.7% year-over-year decline in headcount (98 employees as of mid-2026).

## Competitive Advantages
- First batteries in the world to contain electrolyte materials discovered by AI (via Molecular Universe platform).
- Deep partnerships with three global automakers, providing co-development and potential supply channels.
- End-to-end R&D from AI-driven material discovery to large-format cell manufacturing.
- Global footprint with facilities in the US, China, and South Korea, enabling access to different supply chains and markets.

## Strategic Focus
- Scaling Molecular Universe to accelerate material discovery for both next-generation Li-Metal and mainstream Li-ion applications.
- Expanding Avatar AI solutions to ensure 100% battery safety in the field and reduce manufacturing defects.
- Diversifying beyond automotive into drones, urban air mobility, robotics, and stationary energy storage (ESS).
- Strengthening NDAA-compliant supply chains for defense and drone applications.

## Why Work Here
- Culture: “SES welcomes all, but is not for everyone” – the company seeks top-tier talent in electrochemistry, computational chemistry, cell engineering, AI/ML, and materials science.
- Locations: Woburn (Boston HQ), Shanghai, Chungju (South Korea), with additional offices in Hong Kong, Singapore, and Malaysia.
- Work policy: Likely on-site/lab-intensive given battery R&D and manufacturing; specific remote/hybrid policies not disclosed.
- Notable perks: Not explicitly listed, but employees have backgrounds from MIT, Harvard, national labs, and top battery companies. Salary ranges from LinkedIn: Technician ~$60k, Senior Electrical Engineer ~$131k, Senior Software Engineer ~$130k.
- Engineering culture: Heavy emphasis on AI for science, autonomous labs, and real-world impact on energy transition.

## Sources
1. [SES AI About Us](https://www.ses.ai/about-us)
2. [SES AI Official Site](https://www.ses.ai/)
3. [SES AI Team Page](https://www.ses.ai/ses-team)
4. [SES AI LinkedIn](https://www.linkedin.com/company/ses-ai)
5. [SES AI Careers (Greenhouse)](https://job-boards.greenhouse.io/sesai)

## Other roles at SES

- [Senior Accountant – Accounting & Financial Reporting](https://feeny.ai/job/senior-accountant-accounting-financial-reporting-ses-woburn-492285b3cpwf) — Woburn, MA
- [Sales Manager (Entry Level)](https://feeny.ai/job/sales-manager-entry-level-ses-united-states-392065pbfj3s) — United States
- [Computational Chemistry Intern (Materials Modeling/Molecular Simulation)](https://feeny.ai/job/computational-chemistry-intern-materials-modeling-molecular-simulation-ses-china-4g04t32mj9jh) — China
- [Business Development Representative (BDR)](https://feeny.ai/job/business-development-representative-bdr-ses-woburn-pehbbx1ffg27) — Woburn, MA
- [Materials Business Unit Head](https://feeny.ai/job/materials-business-unit-head-ses-woburn-5gdt02phwy13) — Woburn, MA
- [Computational Materials Scientist](https://feeny.ai/job/computational-materials-scientist-ses-woburn-b4znx7pnzgxs) — Woburn, MA
- [Technical Product Manager](https://feeny.ai/job/technical-product-manager-ses-woburn-rykwnfba27q5) — Woburn, MA
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- [Battery Electrolyte Scientist & Materials Chemistry Leader](https://feeny.ai/job/battery-electrolyte-scientist-materials-chemistry-leader-ses-woburn-2jpreyw0e2p5) — Woburn, MA
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