Principal Application EngineerIrvine, California Full TimeTraveling of up to 10% is required for this role. We are seeking a Principal Application Engineer with a strong background in semiconductor materials, specifically sintering pastes, to join our Electronics team. You'll be responsible for technical leadership, application development, and customer interaction to support and optimize material usage in power electronics and packaging.Key Responsibilities:Lead technical engineering efforts for sintering paste products and applications in electronics.Optimize material performance and processing for both development-stage and commercialized products.Provide hands-on technical support and troubleshooting for customer processes.Serve as the key liaison for application engineering across internal R&D, product development, and external clients.Develop in-depth understanding of customer requirements and deliver high-value, technically sound solutions.Lead DOE (Design of Experiments) and statistical analysis to validate performance and reliability.Maintain customer satisfaction by managing complex, on-site support for application issues.Document and report experimental data, insights, and recommendations.Collaborate cross-functionally with product managers, quality, and sales teams.Required Qualifications:Master's degree in Material Science, Mechanical Engineering, Chemical Engineering, or related fields.10+ years of hands-on experience in materials for semiconductor packaging or power electronics.Strong knowledge of high thermal adhesives, sintering paste technology, and advanced packaging trends.Proficient in statistical analysis, DOE methodology, and materials characterization.Excellent verbal and written communication skills.Demonstrated ability to handle on-site technical support and customer interactions.Strong sense of ownership and a customer-centric mindset.Preferred Qualifications:PhD in a related field.Experience working in power electronics, automotive electronics, or high-performance computing environments.Prior experience in adhesives or functional coatings within semiconductor manufacturing.