{"id":474400,"url":"https://alion.io/job/ses-ai-senior-scientist-electrolyte","title":"Senior Scientist, Electrolyte","company":{"id":31799,"name":"SES AI","domain":"ses.ai","url":"https://alion.io/company/ses","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"D","score":42,"open_postings":36,"ghost_share":0.972,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Science & Research","role_family":"Science & Research","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boston, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130000,"max":170000,"currency":"USD","period":"year","gross":null,"usd_annual":170000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Design of Experiments","optional":false},{"name":"Electrochemical Impedance Spectroscopy","optional":false},{"name":"Machine Learning","optional":true},{"name":"Metal","optional":true}],"status":"live","first_seen_at":"2025-11-24T15:22:29Z","employer_posted_date":"2026-06-22","last_verified_at":"2026-10-27T04:38:31Z","board_verified":true,"closed_at":null,"days_open":336,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":336},"description":"About Us:\nSES AI Corp. (NYSE: SES) is dedicated to accelerating the world’s energy transition through groundbreaking material discovery and advanced battery management. We are at the forefront of revolutionizing battery creation, pioneering the integration of cutting-edge machine learning into our research and development. Our AI-enhanced, high-energy-density and high-power-density Li-Metal and Li-ion batteries are unique; they are the first in the world to utilize electrolyte materials discovered by AI. This powerful combination of \"AI for science\" and material engineering enables batteries that can be used across various applications, including transportation (land and air), energy storage, robotics, and drones.\nTo learn more about us, please visit: www.ses.ai\n\nWhat We Offer:\nA highly competitive salary and robust benefits package, including comprehensive health coverage and an attractive equity/stock options program within our NYSE-listed company.\nThe opportunity to contribute directly to a meaningful scientific project-accelerating the global energy transition-with a clear and broad public impact.\nWork in a dynamic, collaborative, and innovative environment at the intersection of AI and material science, driving the next generation of battery technology.\nSignificant opportunities for professional growth and career development as you work alongside leading experts in AI, R&D, and engineering.\nAccess to state-of-the-art facilities and proprietary technologies are used to discover and deploy AI-enhanced battery solutions.\n\nWhat we Need:\nThe 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.\n\nEssential Duties and Responsibilities:\nFormulation and Materials DesignDesign and develop electrolyte formulations compatible with high energy density lithium-ion anodes and high nickel content NMC cathode cell chemistries to achieve a long cycle life safely.\nDesign electrolyte systems to demonstrate improvements in safety performance, including dimensional stability during battery cycling and storage.\nProvide technical assessment on existing electrolyte systems, additives, and lithium salts in high energy, high-capacity rechargeable lithium-ion cells.\n\nElectrochemical Characterization and AnalysisFully characterize coin and pouch cell performance using new materials and formulations.\nUtilize electrochemical testing and analytical techniques to understand reaction mechanisms, failure modes, and potential benefits of new formulations.\nDemonstrate the ability to use fundamental physical chemistry concepts and experimental techniques to provide promising electrolyte formulation strategies.\n\n Project Management, Communication, and LeadershipAbility to independently plan, execute, manage, and communicate progress on projects.\nSupport product development as required for the prototype-manufacturing team.\nProcess Optimization: Design and implement streamlined testing metrics (e.g., Design of Experiments - DoE) to significantly shorten the R&D learning and development cycle.\nCommunication & Insight: Effectively communicate new concepts, findings, and project updates to the team, drawing actionable insights from discussions.\nTechnical Leadership: Serve as a technical mentor and leader to junior staff, guiding experimental design and professional development.\nKnowledge Integration: Actively integrate and synthesize existing in-house knowledge with new discoveries to accelerate development and problem-solving.\nIP Development: Proactively contribute to the company's intellectual property portfolio through invention disclosures and patent applications.\n\nEducation and/or Experience:\nScientific Knowledge: MS (or better) level of understanding in Electrochemistry, Materials Science, Chemical Engineering, or a related physical science field.\nExperience with developing semi-solid electrolytes (e.g. in-situ gel polymer electrolyte, polymer electrolyte, hybrid solid/liquid electrolyte) are highly preferred. \nExperience Level: Minimum of 3+ years of industrial or advanced academic experience (post-MS) focused on electrolyte or battery materials development.\nChemistry Foundation: Strong knowledge of common lithium-ion electrolyte systems, including common lithium salts, solvents, and additives, and their specific roles.\nPhysicochemical Understanding: Experience applying physical-chemical methods to tackle formulation problems and understanding properties like density, viscosity, and ionic conductivity.\nElectrochemical Techniques: Hands-on expertise in advanced electrochemical characterization, including Electrochemical Impedance Spectroscopy (EIS) and galvanostatic cycling.\nHigh-Purity Handling: Proven experience working with moisture sensitive materials in a glovebox or dry room environment, and expertise in handling high purity chemicals.\nData Proficiency: Proficiency in battery cell tests (coin/pouch) and scientific data analysis (e.g., using statistical or scientific software).\nIndustry Knowledge: Proven ability to onboard and integrate existing in-house knowledge with new discoveries and challenges.\nPreferred Qualifications:\nAdvanced Degree: Doctorate (Ph.D.) in Chemistry, Chemical Engineering, or a related field, with 3+ years of post-PhD industrial experience.\nDiverse Formulation: Experience in formulation development beyond liquid electrolytes, including exposure to polymer electrolytes, ionic liquids, and/or solid-state electrolytes.\nLarge Format Experience: Direct experience working with and characterizing large format cells (e.g., prismatic or cylindrical).\nSoftware/Modeling: Experience with computational chemistry or battery modeling tools.\nIndustry Alignment: Demonstrated passion for and experience in the mobile energy or automotive space.\n\nThe salary range for this position as required under applicable pay transparency laws.\nSalary Range\n$130,000—$170,000 USD","description_format":"text","description_chars":6467,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Professional development","Stock options"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy 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