Senior Product Engineer, Filaments and Thermoplastics

Senior Product Engineer, Filaments and Thermoplastics

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 entering an exciting growth phase, scaling production across the U.S. and Europe and expanding our team of engineers, scientists, and innovators.

We're looking for a Senior Product Engineer, Filaments and Thermoplastics 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.

What You'll Do

• Own assigned products end to end, from qualification and launch through ongoing production, cost, and performance
• Manage technical relationships with contract manufacturers and toll processors, including trial planning, on-site production runs, process parameter definition, and troubleshooting
• Define and maintain product specifications, incoming and outgoing test methods, and acceptance criteria
• Qualify and onboard new manufacturing partners, including capability assessment, facility audits, first-article approval, and process validation
• Drive root cause analysis and corrective action on production and field quality issues, working directly with suppliers to close them out
• Lead new product introduction: scope, timeline, qualification plan, launch documentation, and handoff to sales and support
• Serve as the technical point of contact for customer and applications questions, including print performance, material handling, and failure analysis
• Own packaging, moisture control, storage, and handling requirements that protect product quality through the supply chain
• Support cost, margin, and supply continuity decisions with technical judgment on second-source qualification and material substitutions

Required Qualifications

• BS with 5 + years of experience, or MS with 3 + years of experience or PhD in Polymer Science, Polymer/Chemical Engineering, Materials Science, or a related field
• Working knowledge of polymer structure to property relationships and polymer rheology, and the ability to apply it to real production and field problems
• Experience with 3D printing or additive manufacturing, particularly FFF/FDM filament
• Hands-on experience with melt processing, particularly extrusion or compounding, in a production or scale-up setting
• Experience owning product, product development and/or process specifications and driving quality issues to closure
• Familiarity with polymer characterization methods, including rheology, thermal analysis, and mechanical testing, and the ability to interpret data and act on it
• Comfortable working on a production floor and traveling to supplier sites, roughly 10 to 25 percent
• Clear written and verbal communication with suppliers, customers, and internal teams

Nice to Have

• Familiarity with engineering thermoplastics such as PA, PC, PEEK, or PEI
• Experience with filled or reinforced systems, including carbon fiber and glass fiber compounds
• Customer-facing or applications engineering experience
• Working knowledge of ASTM/ISO polymer test standards
• Track record of owning commercial products through full lifecycle, including launch and sustaining
• Experience qualifying and managing contract manufacturers, including audits and corrective action processes
• Ability to make and defend technical tradeoff decisions involving cost, quality, and schedule

Compensations Range:

The expected base salary range for this position is between $ - $. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. In addition to base pay this position is eligible for…