Senior Staff Engineer Field Application Engineering

Infineon Technologies – IR HiRel is seeking a technically driven Field Application Engineer to support our growing Aerospace & Defense business. This customer-facing role sits at the intersection of advanced semiconductor technology and the industry’s most demanding applications— satellite systems, launch vehicles, military avionics, defense platforms, and national laboratory programs.

Your Role Key responsibilities in your new role

As the primary technical resource for key accounts, you will guide customers from early design conception through successful product integration. Drawing on Infineon’s portfolio of radiation-hardened and radiation-tolerant semiconductors — MOSFETs, GaN power devices, gate drivers, and integrated power ICs — you will shorten development cycles, reduce system cost, and improve the reliability of products built to survive the harshest environments on Earth and in space.

Own the technical relationship across the full sales cycle — from early design engagement through design win capture and program ramp Partner with account managers to identify socket opportunities, build block diagram-aligned solution proposals, and position Infineon’s rad-hard and rad-tolerant portfolio competitively

Deliver technical presentations, application training, and design reviews tailored to the constraints of space and defense programs

Provide pre- and post-sales support including schematic review, PCB layout guidance, and system-level performance validation for designs utilizing GaN, Si MOSFETs, gate drivers, and power ICsValidate customer applications in radiation environments, supporting derating analysis, SEE mitigation strategies, and TID margin assessments

Advise on product selection across rad-hard and plastic rad-tolerant product lines for GEO, MEO, LEO, and defense environments

Guide customers through applicable qualification standards including MIL-PRF-38535, MIL-STD-750, and JEDEC space standards

Capture and communicate customer requirements to product and marketing teams to influence roadmap development Provide technical win/loss insight and contribute to the internal opportunity pipeline

Your Profile Qualifications and skills to help you succeed

Bachelor’s degree or higher in Electrical Engineering, Computer Engineering, or related discipline 5+ years in a Field Application, systems, or applications engineering role supporting power electronics or semiconductor products

Demonstrated expertise in power switching topologies and high-frequency power supply design using GaN and/or Si MOSFET technology

Experience performing design reviews across schematics, PCB layout, and system-level performance for customer applications

Strong communicator with the ability to engage credibly at both the engineering and program management level

Self-directed and organized, with the ability to manage multiple high-priority accounts simultaneously

Experience with Aerospace & Defense market a plus

Experience with space-grade memory products (SRAM, Flash) a plus#We Are In  for driving decarbonization and digitalization.

As a global leader in semiconductor solutions in power systems and IoT, Infineon enables game-changing solutions for green and efficient energy, clean and safe mobility, as well as smart and secure IoT. Together, we drive innovation and customer success, while caring for our people and empowering them to reach ambitious goals. Be a part of making life easier, safer and greener.

Are you in?

We are on a journey to create the best Infineon for everyone.

This means we embrace diversity and inclusion and welcome everyone for who they are. At Infineon, we offer a working environment characterized by trust, openness, respect and tolerance and are committed to give all applicants and employees equal…