Manufacturing Engineer – Rubber/ElastomersLocation: Brea, CA (On-site, Monday–Friday)Salary: Competitive salary depending on experienceType: Full-time, Direct HireAbout the CompanyOur client is a well-established aerospace and defense manufacturer with more than 100 years of history, specializing in high-performance elastomer and polymer components. Their products fly on commercial, military and business aircraft worldwide, as well as on missiles, space launchers and satellites, including sole-source components on major Boeing, Airbus and F-35 programs. As part of a large global aerospace group, they offer the stability of a major organization with the hands-on impact of a focused manufacturing team.About the RoleWe’re looking for a hands-on Manufacturing Engineer with rubber and elastomer experience to support and improve production. You’ll troubleshoot processes on the floor, design tooling, and drive continuous improvement across molding, extrusion and composite/plastics operations.What You’ll DoSupport daily production of rubber and elastomer components, troubleshooting process, mold and quality issues on the shop floorDesign and improve tooling, molds, fixtures and workholding to raise quality and efficiencyLead root cause analysis and corrective action (RCCA) for production and quality issuesDrive continuous improvement projects using lean principles to reduce scrap, cycle time and costSupport compression molding, extrusion, and composite and plastics processesCreate and maintain work instructions, process documentation and manufacturing aidsWork cross-functionally with production, quality, tooling and operations leadershipSupport new product introduction and process changes from trial through full productionWhat You’ll BringBachelor’s degree in Mechanical, Chemical, Materials or Manufacturing Engineering, or equivalent experience3+ years of manufacturing or process engineering experienceHands-on experience with rubber or elastomer manufacturing (required)Experience with composites, plastics, compression molding and/or extrusion (strongly preferred)Proven troubleshooting, tooling design and continuous improvement experienceStrong problem-solving skills using RCCA, 8D or similar methodsAbility to manage multiple projects in a fast-paced production environmentAerospace, defense or AS9100 experience is a plusMust be a U.S. citizen or permanent resident (ITAR)Why JoinCompetitive salary and benefitsHands-on ownership of processes with real impact on productionStability with a growing aerospace manufacturerRoom to grow into senior engineering roles