Senior Scientist, Electrolyte

SES AI Corp

Senior Scientist responsible for developing innovative electrolyte materials at SES AI Corp. Focused on advancing mobile energy storage technology to accelerate the global energy transition.

Posted 6/24/2026full-timeWoburn • Massachusetts • 🇺🇸 United StatesSenior💰 $160,000 - $200,000 per yearWebsite

Tech Stack

Tools & technologies

Ionic

About the role

Key responsibilities & impact

The SES AI Department is seeking an Electrolyte Scientist to join our team dedicated to mobile energy storage. This scientist will be responsible for creating innovative electrolyte materials and systems that enable safe, long-lasting, and high-energy-density lithium-ion batteries.
Key duties include designing, developing, and optimizing electrolyte formulations, as well as meticulously analyzing their interactions with other cell components during battery cycling and storage.
The ideal candidate is a passionate, highly detail-oriented, and collaborative team player who thrives in a fast-paced environment and shares a vision for advancing energy storage technology.

Requirements

What you’ll need

Scientific Knowledge: MS (or better) level of understanding in Electrochemistry, Materials Science, Chemical Engineering, or a related physical science field.
Experience with developing semi-solid electrolytes (e.g. in-situ gel polymer electrolyte, polymer electrolyte, hybrid solid/liquid electrolyte) are highly preferred.
Experience Level: Minimum of 3+ years of industrial or advanced academic experience (post-MS) focused on electrolyte or battery materials development.
Chemistry Foundation: Strong knowledge of common lithium-ion electrolyte systems, including common lithium salts, solvents, and additives, and their specific roles.
Physicochemical Understanding: Experience applying physical-chemical methods to tackle formulation problems and understanding properties like density, viscosity, and ionic conductivity.
Electrochemical Techniques: Hands-on expertise in advanced electrochemical characterization, including Electrochemical Impedance Spectroscopy (EIS) and galvanostatic cycling.
High-Purity Handling: Proven experience working with moisture sensitive materials in a glovebox or dry room environment, and expertise in handling high purity chemicals.
Data Proficiency: Proficiency in battery cell tests (coin/pouch) and scientific data analysis (e.g., using statistical or scientific software).
Industry Knowledge: Proven ability to onboard and integrate existing in-house knowledge with new discoveries and challenges.

Benefits

Comp & perks

A highly competitive salary and robust benefits package, including comprehensive health coverage and an attractive equity/stock options program within our NYSE-listed company.
The opportunity to contribute directly to a meaningful scientific project—accelerating the global energy transition—with a clear and broad public impact.
Work in a dynamic, collaborative, and innovative environment at the intersection of AI and material science, driving the next generation of battery technology.
Significant opportunities for professional growth and career development as you work alongside leading experts in AI, R&D, and engineering.
Access to state-of-the-art facilities and proprietary technologies are used to discover and deploy AI-enhanced battery solutions.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

ElectrochemistryMaterials ScienceChemical EngineeringElectrolyte FormulationsLithium-ion BatteriesElectrochemical Impedance SpectroscopyGalvanostatic CyclingDensityViscosityIonic Conductivity

Soft Skills

Detail-orientedCollaborativeTeam playerFast-paced environmentInnovative