Applications Engineer – mmWave Beamformer ICs and Arrays

Fi NOW; Town of Sweden (NY); On-site; USD 93,150 - 124,200; Full time

Job summary

Fi NOW in Sweden is seeking an Applications Engineer to support mmWave beamformer ICs and active antenna arrays for 5G, SATCOM, radar, and sensing.You will act as the key technical interface between product design teams and customers, helping to integrate ICs into real-world systems.

You’ll develop reference designs, calibration scripts, and evaluation boards, while collaborating with RF, mixed-signal, and software teams to ensure robust solutions and timely design-wins.

Qualifications

• Strong technical expertise in mmWave ICs, phased arrays, and RF systems.
• Experience communicating with customers and translating needs into designs.
• Hands-on testing and measurement skills across RF chains and antenna systems.

Responsibilities

• Serve as the primary technical contact for customers integrating mmWave beamformer ICs into antenna arrays.
• Develop and validate reference designs, evaluation boards, and calibration scripts.
• Characterize array-level performance across temperature and frequency bands.
• Support system-level design including RF signal chains, LO distribution, and SPI/I2C interfaces.
• Assist in debugging and root-cause analysis during customer bring-up.
• Produce application notes and training materials for customers and field teams.
• Contribute to demos, tradeshows, and design-win activities with marketing and BD teams.

Skills

mmWave ICs

Phased arrays

RF systems

Customer-facing support

Education

M.S. in Electrical Engineering (Ph.D. preferred)

Tools

Network analyzers

Spectrum analyzers

Signal generators

Antenna range testing

Job description

Applications Engineer – mmWave Beamformer ICs and Arrays

Location: Sweden

Are you passionate about cutting-edge RF technology and advanced wireless systems? Join our team as an Applications Engineer, supporting mmWave beamformer ICs and active antenna arrays for 5G, SATCOM, radar, and sensing applications. You will act as the key technical interface between our product design teams and customers, helping to integrate our innovative ICs into real-world systems.

What You’ll Do:

• Serve as the primary technical contact for customers integrating mmWave beamformer ICs into antenna arrays.
• Develop and validate reference designs, evaluation boards, and calibration scripts for beamforming and gain/phase control.
• Characterize array-level performance (EIRP, EVM, beam patterns, linearity, noise figure) across temperature and frequency bands.
• Support system-level design including RF signal chains, LO distribution, power management, and digital control interfaces (SPI/I²C).
• Assist in debugging and root-cause analysis of performance issues during customer bring-up and production ramp.
• Collaborate with internal design and test engineers to provide feedback on product specifications, firmware, and test automation.
• Produce application notes, design guidelines, and training material for customers and field support teams.
• Contribute to customer demos, trade shows, and design-win activities in collaboration with marketing and business development teams.

Who We’re Looking For:

• Strong technical expertise in mmWave ICs, phased arrays, and RF systems.
• Excellent communication and problem-solving skills.
• Ability to work across RF, mixed-signal, and system domains.
• Experience in customer-facing technical support or applications engineering is a plus.

Why Join Us:

• Work on next-generation wireless technologies at the forefront of 5G, SATCOM, and radar.
• Collaborate with a global, innovative team of engineers.
• Opportunity to influence product adoption and impact real-world systems.

Qualifications:

• M.S. in Electrical Engineering or a related field (Ph.D. preferred), with a focus on RF/mmWave circuits or systems.
• 3–8 years of experience in RFIC design, antenna arrays, or system integration.
• Strong understanding of beamforming architectures, RF measurements, and phased-array calibration.
• Hands-on experience with network analyzers, spectrum analyzers, signal generators, and antenna range testing.
• Proficient in MATLAB, Python, or LabVIEW for measurement automation and data analysis.
• Excellent written and verbal communication skills; able to work effectively with cross-functional teams and customers.

Interested? Apply now to be part of our exciting journey in advanced wireless systems!