Principal Engineer
Listed on 2026-07-20
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Engineering
Process Engineer, Manufacturing Engineer, Mechanical Engineer, Quality Engineering
Overview
ION Storage Systems offers solid-state battery solutions focusing on performance, safety, and durability. We are building a scalable, modular ceramic structure for next-generation energy storage and are backed by leading venture capital firms. We offer an inclusive environment with opportunities for growth and a collaborative team culture.
As part of the Cell Engineering group, you will contribute to the development and optimization of a first-of-its-kind prototyping line for solid-state cells and anodes. This is a prototype line working toward volume production and new products. You will collaborate with cell, mechanical, equipment, and automation engineers and technicians to improve process speed, yield, and reliability.
Responsibilities- Work collaboratively to support the existing prototype line, identifying key levers to drive process reliability, quality, and uptime
- Lead root-cause investigations for equipment and process failures and drive corrective/preventive actions to closure
- Own the design, build, and commissioning of new equipment and fixtures from concept through installation, across mechanical, electrical, and controls disciplines
- Translate process requirements into robust hardware and automation specifications
- Mentor and provide technical guidance to engineers and technicians; review designs and troubleshooting approaches
- Partner with process/cell engineers to understand upstream process needs and downstream implications of equipment design choices
- Contribute to engineering standards and documentation practices suitable for a scaling organization
- Independently manage priorities across multiple ongoing projects with minimal oversight
- Strong hands-on engineering experience
- Experience building first-of-its-kind hardware and software for automated systems
- Strong mechanical design fundamentals with 3D CAD experience for equipment, tooling, fixtures, and assembly aids
- B.Eng., M.Eng.,
B.Sc., or M.Sc. in Mechanical Engineering, Electrical/Controls Engineering, Mechatronics, or related discipline - 10+ years of work experience (post B.S.)
- Preferred: experience in cell assembly, semiconductor, or related field
- Preferred: experience standing up a pilot or prototype line from an early stage
- Preferred: experience working with equipment vendors on custom or first-of-a-kind tooling
- Work onsite at ION's Beltsville, MD facility; hands-on and collaborative role requiring regular presence
- Wear PPE including lab coat, gloves, safety glasses, and safety-toe shoes
- Ability to stand, bend, and move around equipment and lab benches for extended periods
- Department:
Cell Engineering - Reports to:
Liz Santori (SVP, Cell Engineering)
- Medical, dental, vision, disability, and life insurance
- Stock options in an early-stage company
- Company and floating holidays
- 17 days of PTO to start, with increase upon tenure
- 401k plan with a 4% company match
- Wellness allowance of $1,000 annually
Ion Storage Systems Inc., located in Beltsville, MD, is a rapidly growing company commercializing breakthrough lithium metal battery technology. The company develops products that impact everyday life across defense, aerospace, consumer electronics, electrified transportation, and renewable energy storage. The team is diverse, collaborative, and focused on growth and work/life balance.
EEO notice:
Ion Storage Systems, Inc. is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, ancestry, pregnancy, sexual orientation, gender identity, national origin, age, citizenship, marital status, disability, or Veteran status.
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