RIBattery Technician/Engineer
Run slurry mixing, electrode coating, cell assembly, formation, testing and teardowns on a battery R&D pilot line.
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Worth knowing
Why it is interesting. End-to-end cell work from slurry to teardown on Si-graphite and sodium-ion chemistries at a defense-focused startup
Might not be for you. Requires 2+ years prior hands-on battery cell experience, so not suited to new graduates
Adjacent materials roleslurry mixing, electrode coating, drying, calendaring, slitting, cell assembly, formation, teardowns for Si-graphite Li-ion and Na-ion cells
- Seniority
- Technician
- Work
- On-site
- Type
- Full-time
- Experience
- 2+ yrs
- Industry
- Energy
- Role
- Manufacturing / Production
Role details
About Us
Rincell is shipping the world’s highest energy-performance Silicon-Graphite lithium-ion and Sodium-ion batteries for defense and commercial applications. With relentless innovation, we are redefining the next generation of energy storage solutions.
Role Overview
We are seeking a hands-on Battery Technician / Engineer to support battery cell development, manufacturing, testing, and troubleshooting at Rincell’s R&D and pilot-line facility. This role will work across end-to-end cell manufacturing process, from slurry mixing and electrode manufacturing through cell assembly, formation, testing, and cell teardowns. Prior hands-on battery cell experience is required.
Key Responsibilities
Battery Cell Manufacturing
- Perform slurry mixing and materials preparation for battery electrodes.
- Support electrode manufacturing, including coating, drying, calendaring, and slitting, as applicable.
- Build battery cells and support cell assembly processes, equipment setup, and troubleshooting processes.
Formation, Testing & Teardowns
- Perform cell formation, aging, electrical testing, and performance characterization in accordance with established procedures.
- Conduct cell teardowns and document observations, failure modes, and findings to support root-cause analysis.
- Maintain accurate manufacturing, test, and experimental records; summarize results and communicate issues to the team.
Pilot Line, R&D & Quality Support
- Operate and maintain R&D and pilot-line equipment while following safety procedures and work instructions.
- Support process development, experiments, build plans, and troubleshooting with R&D and manufacturing teams.
- Assist with materials handling, inventory tracking, equipment readiness, and continuous improvement of cell manufacturing processes.
Qualifications
- At least 2 years of hands-on experience working with battery cells in cell manufacturing, development, or testing is required.
- Practical experience with battery cell manufacturing processes is required.
- Ability to follow detailed procedures, work safely with battery materials and equipment, and maintain accurate records.
- Strong troubleshooting, documentation, and communication skills.
- Experience with pilot-line equipment, cell testing instruments, and battery materials handling.
Preferred Skills
- Experience with lithium-ion and/or sodium-ion battery chemistries.
- Experience working in a startup, R&D, or fast-paced manufacturing environment.
Why Join Us
- Be part of a fast-growing company shaping the future of energy storage.
- Work on cutting-edge technologies with a direct path to real-world deployment.
- Collaborate with a passionate team at the intersection of science, engineering, and manufacturing.
How to Apply
- Interested candidates may apply by emailing their resume to [email protected]
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