Applications Engineer - Principal/Senior Principal Engineer

Company Overview:MACOM designs and manufactures semiconductor products for Data Center, Telecommunication and Industrial and Defense applications. Headquartered in Lowell, Massachusetts, MACOM has design centers and sales offices throughout North America, Europe and Asia. MACOM is certified to the ISO9001 international quality standard and ISO14001 environmental management standard.MACOM has more than 75 years of application expertise with multiple design centers, Si, GaAs and InP fabrication, manufacturing, assembly and test, and operational facilities throughout North America, Europe, and Asia. View our facilities at In addition, MACOM offers foundry services that represents a key core competency within our business.MACOM sells and distributes products globally via a sales channel comprised of a direct field sales force, authorized sales representatives and leading industry distributors. Our sales team is trained across all of our products to give our customers insights into our entire portfolio. Job Title: Application Engineer – Principal/SPEJob Locations: Ann Arbor, Michigan, Milpitas, California, Lowell, MassachussetsJob Summary:We are seeking a highly skilled and self-driven Application Engineer with deep expertise in optoelectronic devices, including laser diodes and photodetectors. This role serves as a critical technical interface between MACOM and its customers, ensuring successful product integration, rapid issue resolution, and sustained customer satisfaction. The ideal candidate combines strong technical depth with excellent customer-facing and cross-functional collaboration skills.Key Responsibilities:Serve as the technical lead for optoelectronic device applications, including laser diodes and photodetectors.Act as the primary technical liaison to customers, providing expert-level application guidance and support.Diagnose, troubleshoot, and resolve complex customer issues in a timely and effective manner.Conduct regular on-site visits to customer locations to provide hands-on technical support and strengthen customer relationships.Collaborate closely with design and develop teams to support new product introductions and customer deployments.Analyze and interpret customer data, benchmarking against internal performance metrics to identify trends and discrepancies.Work cross-functionally with Product Line Management (PLM), manufacturing, quality, design, and applications teams to drive product success.Job Requirements/Qualifications:Strong technical background in optoelectronic devices, with a solid understanding of RF principles.Excellent analytical and problem-solving skills.Proven ability to plan, organize, and manage multiple priorities effectively.Strong written and verbal communication skills, with the ability to explain complex technical concepts clearly.Eagerness to learn and adapt to new technologies.Willingness to travel as required to support customer engagements.Minimum Requirements:Bachelor’s or Master’s degree in Engineering, Physics, or a related technical discipline.Minimum of 5 years of experience in the optoelectronics or photonics industry, with proven success in applications engineering or a related role.Demonstrated success working in cross-functional, international teams.Hands-on experience with photonic product testing and troubleshooting.Fluency in English, both spoken and written.The Salary Range for this position is $98,000 – $200,000. Actual salary offered to candidate will depend on several factors, including but not limited to, work location, relevant candidates’ experience, education, and specific knowledge, skills, and abilities.This position is eligible to receive restricted stock unit (RSU) awards and cash bonuses, solely at MACOM’s discretion, subject to individual and company performance.Benefits: This position offers a comprehensive benefits package including but not limited to:Health, dental, and vision insurance.Employer-sponsored 401(k) plan.Paid time off.Professional development opportunities.Free access to Gym in Lowell and Milpitas locationsEEO:MACOM is an Equal Opportunity Employer committed to a diverse workforce. MACOM will not discriminate against any worker or job applicant on the basis of race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, genetic information, veteran status, military service, marital status, or any other category protected under applicable law.Reasonable Accommodation:MACOM is committed to working with and providing reasonable accommodations to qualified individuals with physical and mental disabilities. If you have a disability and are in need of a reasonable accommodation with respect to any part of the application process, please call View phone number on us.fitly.work or email View email address on us.fitly.work. Provide your name, phone number and the position title and location in which you are interested, and nature of accommodation needed, and we will get back to you. We also work with current employees who request or need reasonable accommodation in order to perform the essential functions of their jobs.