Battery Materials Engineer I: Hands-on Lab & Impact

Chemistry for Sustainability; Seattle, Northern (WA, KY); Hybrid; USD 83,000 - 90,000; Full time

Benefits offered by this job

Stock options

Medical, dental, and vision insurance

Life and disability insurance

Paid sick leave

Paid holidays

Paid vacation

Job summary

Emerald Battery Labs in Seattle is seeking a hands-on chemist/engineer to join our lab team focused on sodium‑ion battery materials and cell fabrication.

You will synthesize materials, learn pouch cell builds, set up electrochemical tests, document results, and collaborate with founders and engineers to optimize processes.

This is a full-time, in‑person role requiring safety discipline and a pragmatic, problem‑solving mindset in a fast-paced startup.

Qualifications

• Holds a bachelor's degree in Chemistry, Chemical Engineering, Materials Science, Mechanical Engineering, or a related field.
• Has 0-2 years of experience; you should have some preparation for this role from coursework, internships, co-ops, undergraduate research, extracurricular projects or early career roles.
• Has hands-on laboratory or shop experience and enjoys physical, detail-oriented work - making things, running equipment, and figuring out why something didn’t work.
• Demonstrates energy and hustle and can keep momentum without being tasked.
• Is a natural problem solver; when something fails or underperforms, your instinct is to dig into the why and move to corrective action.
• Communicates clearly in writing and in person, explaining what you did, what you saw, and what you think it means.

Responsibilities

• Synthesize Emerald Battery Labs' proprietary sodium-ion anode materials, executing and improving processes spanning precursor preparation, thermal treatment, and particle size reduction while maintaining complete process records.
• Learn hands-on cell fabrication from slurry preparation through electrode coating and coin cell assembly, progressing to pouch cell builds as your skills develop.
• Learn coin and pouch cell test engineering: setting up electrochemical test protocols, operating cyclers, monitoring cells on test, and performing first-pass data review.
• Document what you do - synthesis records, build records, and work instructions for new and revised processes - so that what works once works every time.
• Collaborate closely and cross-functionally with founders, senior scientists, and engineers to design, troubleshoot, and optimize materials and lab-scale processes

Skills

Laboratory experience

Hands-on lab work

Attention to detail

Problem solving

Communication skills

Safety compliance

Education

Bachelor's degree in Chemistry

Bachelor's degree in Chemical Engineering

Bachelor's degree in Materials Science

Tools

Electrochemical test equipment

Cell cyclers

Job description

Emerald Battery Labs in Seattle is seeking a hands-on chemist/engineer to join our lab team focused on sodium‑ion battery materials and cell fabrication.

You will synthesize materials, learn pouch cell builds, set up electrochemical tests, document results, and collaborate with founders and engineers to optimize processes.

This is a full-time, in‑person role requiring safety discipline and a pragmatic, problem‑solving mindset in a fast-paced startup.