Senior Lithium Process Engineer

Lyten•San Jose, CA

About The Position

Lyten is leading an industrial revolution through Lyten 3D Graphene™, a breakthrough supermaterial unlocking a new generation of products — from lithium–sulfur batteries and energy storage systems to concrete admixtures, lightweight composites, and next-generation sensors that are revolutionizing industries. Together, these innovations are making a massive global improvement and driving real-world impact across energy, mobility, construction, and defense. At Lyten, we believe the most meaningful careers begin with purpose — and with people who want to make a difference. We’re not just developing advanced supermaterials — we’re about to change the world as we know it, reshaping how energy is stored, how products are built, and how progress is made. We’re entering an exciting growth phase, scaling production across the U.S. and Europe and expanding our team of engineers, scientists, and innovators. Apply now to join our team and be part of something bigger than yourself — where collaboration, creativity, and purpose come together to build the technologies that will define the next century.

Requirements

Master's degree with 3+ years of relevant experience OR bachelor’s degree in electrical, Mechanical, Chemical Engineering, or related field AND 5+ years of relevant experience in Materials Science, Chemical Engineering, Chemistry, or a related field.
Solid understanding of R2R manufacturing processes
Hands-on experience operating or troubleshooting metal extrusion and/or rolling mill equipment.
Experience handling reactive, air-sensitive, or hazardous materials in a manufacturing setting.
Experience handling alkali metals (Lithium/Sodium)
Working knowledge of DOE, SPC, and process capability analysis
Strong root cause analysis and problem-solving skills
Excellent documentation skills (SOPs, work instructions, process specs)
Ability to work cross-functionally in a fast-paced environment

Nice To Haves

Direct hands-on experience operating or troubleshooting metal extrusion and/or rolling mill equipment on lithium or other alkali/soft metals.
Knowledge of hydraulics and high-pressure systems
Experience leading technology transfer from pilot line to high-volume production
Familiarity with PLC/automation controls for extrusion or rolling equipment

Responsibilities

Own development and optimization of Lithium foil manufacturing processes, from lab to full production scale.
Lead DOE and SPC efforts to improve extrusion and rolling mill consistency and yield.
Operate extruder and rolling mill by extruding bulk lithium into strips to precision milling them into thin foils on a Roll-to-Roll (R2R) system.
Control hydraulic pressure, barrel/die temperature zones, and extrusion speed to hit target spec.
Troubleshoot extrusion defects — surface tearing, dimensional drift, inconsistent feed rate.
Control Rolling mill roller gap, force, speed, and tension through the line to hit production quality targets.
Manage roll conditions to prevent sticking, tearing, or edge cracking of lithium.
Troubleshoot rolling defects — thickness variation, pinholes, wrinkling, edge cracks, surface scoring.
Set up inspection methods and control limits for thickness and edge quality.
Lead root cause analysis and troubleshooting for defects and yield losses across the line.
Select and validate process equipment and work with vendors.
Write and maintain SOPs and process specs and roll out PFMEA.