Applications Engineer - Senior

MACOM•Lowell, MA

About The Position

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. 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. Senior Application Engineer – MMIC Products Do you thrive at the intersection of RF engineering, customer engagement, and hands-on lab work? Are you energized by solving complex technical problems and guiding others to successful outcomes? If so, we are looking for a Senior Application Engineer to join our Application Engineering Team. Our team supports customers working with a diverse portfolio of MMIC devices—from low-frequency passives to products operating beyond 100 GHz, with continuous innovation across the portfolio. As a Senior Application Engineer, you will serve as a technical leader within the team, driving customer success, mentoring junior engineers, and contributing to application strategy and product adoption.

Requirements

BSEE or BSECE required; MS preferred.
Typically 5+ years of experience in RF/microwave, semiconductor, or related engineering field.
Strong hands-on experience with RF/microwave test equipment and measurement techniques.
Demonstrated ability to independently solve complex technical problems.
Solid understanding of RF & microwave theory and practical implementation.
Experience with characterization, modeling, and application of MMIC products.
Familiarity with PCB design for high-frequency applications.
Strong written and verbal communication skills, with ability to convey complex concepts clearly.
Proven ability to work cross-functionally and influence technical decisions.
Self-driven, organized, and capable of managing multiple priorities.
Due to ITAR regulations, only candidates who are U.S. Persons (U.S. citizens, U.S. nationals, lawful permanent residents, or individuals granted asylum or refugee status) will be considered for this position.

Responsibilities

Serve as a primary technical interface between customers and MACOM, combining deep technical expertise with clear communication and strong ownership.
Lead investigations and resolution of complex customer technical issues, independently driving to closure.
Provide authoritative technical guidance on RF/microwave applications, measurements, and system-level integration.
Design, execute, and interpret advanced RF test setups using equipment such as PNA-X, VNAs, spectrum analyzers, probe stations, and power measurement systems.
Architect and design application-specific circuits, evaluation boards, and reference designs to support customer needs.
Develop high-quality technical collateral including application notes, data packages, and presentations.
Analyze characterization and production data to inform datasheets, application guidance, and customer recommendations.
Collaborate cross-functionally with design, product engineering, reliability, and marketing teams to ensure successful product adoption.
Represent the Application Engineering team in technical discussions, design reviews, and customer engagements.
Act as a subject matter expert for assigned product lines or application areas.
Mentor and guide junior engineers in lab techniques, problem-solving, and customer interaction.
Help define best practices for measurement methodologies, ticket handling, and application workflows.
Drive improvements in technical support processes, tools, and documentation.
Support prioritization and management of customer inquiries, ensuring timely and high-quality responses.
Provide feedback to development teams based on customer interactions and field learnings.
Lead complex RF testing and debugging activities across lab environments.
Design and validate evaluation hardware and application circuits.
Review and contribute to datasheets and application documentation.
Manage and contribute to technical ticket tracking with a focus on responsiveness and quality.
Develop and deliver customer-facing presentations and technical content.
Support design reviews and internal technical discussions as a senior contributor.