Koobz · 3 days ago
Senior Materials Scientist, Polymer Physics & Innovation
Ventura, CA
Full-time
Onsite
Senior Level
$135K/yr - $165K/yr
5+ years expKoobz is not just 3D printing shoes; we are rewriting the physics of footwear manufacturing. We are seeking a Senior Materials Scientist to own the molecular "Ground Truth" of our manufacturing process, partnering deeply with Process Engineering to bridge the gap between polymer rheology and high-velocity FDM extrusion.
3D PrintingConsumer GoodsFashionManufacturing
No H1B
U.S. Citizen Only
Responsibilities
Define Polymer Kinetics & Thermal History: You will lead the "Polymer Kinetics & Thermal Mastery" initiative. This involves characterizing exactly how moisture content, heat creep, and molecular phase separation dictate print quality. You will build predictive models that tell our engineers how the material will behave before it even enters the nozzle
Next-Gen Material Scouting: You will lead the research and qualification of novel, elastomeric systems to develop improvements in performance, printability and sustainability
Process-Structure-Property Relationships: You will not work in a silo. You will sit alongside Process Engineers to co-develop the process architecture. You will analyze how toolpath manipulation and thermal history affect layer adhesion, foaming density, and surface aesthetics
Lab Infrastructure & IQC Standards: Commission our Integrated Quality Lab. You will establish scientific "Go/No-Go" metrics for raw material intake, ensuring no unverified material ever hits the production floor
Qualification
Required
Advanced Degree: Ph.D. or Master's in Materials Science, Polymer Science, Chemical Engineering, or related field
Deep Technical Experience: 5+ years of industrial or advanced research experience specifically focused on polymer physics, rheology, or thermoplastic elastomers. Academic research counts if it was applied/industrial in nature
Characterization Mastery: Expert proficiency with thermal and mechanical analysis (DSC, TGA, DMA, Instron) and microscopy. You must be able to interpret data to solve factory-floor problems
Data-Driven Mindset: Experience using coding/scripting (Python, MATLAB, JMP) to analyze large datasets and model material behavior
US Work Authorization: Must be a US Citizen or Permanent Resident
Preferred
Experience with foaming polymers or blown thermoplastics
Background in filament extrusion or polymer processing
A track record of translating complex scientific data into actionable engineering guidelines
Benefits
Equity
Benefits
Company
Koobz
Koobz is a consumer products company that designs and manufactures 3D-printed footwear products with automated manufacturing processes.
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$7.53MKey Investors
Uncork Capital
2025-06-24Seed· $7.28M
2024-05-03Pre Seed· $0.25M
Leadership Team
Kuba Graczyk
Chief Executive Officer
Company data provided by crunchbase