Design Engineer III (24903)

NEOTECH • Naperville, IL

2d • $100,000 - $115,000 • Onsite

About The Position

We are seeking an experienced RF Designer to lead the design, development, and validation of high-frequency circuits and systems for demanding applications including aerospace, defense, industrial, and medical products. This role requires deep expertise in RF/microwave design, PCB materials, and system integration, along with the ability to work in a customer-facing environment.

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering or related field
• 8+ years of experience in RF/microwave design
• Strong understanding of transmission lines, impedance matching, S-parameters, and EM theory
• Hands-on experience with RF test equipment (VNA, spectrum analyzer, power meters)
• Experience designing multilayer RF PCBs and working with controlled impedance structures
• Familiarity with high-frequency PCB materials and stack-up design
• Due to ITAR and / or CUI compliance, this position requires candidates to be a U.S. Citizen.

Nice To Haves

• Experience with mmWave or high-frequency (>10 GHz) designs
• Knowledge of hermetic and high-reliability packaging techniques
• Experience with LTCC, hybrid circuits, or module-level RF design
• Familiarity with military and aerospace standards (MIL-STD, IPC Class 3)
• Experience designing for harsh environments (temperature, vibration, radiation)
• RF circuit simulation and modeling
• Signal integrity and power integrity analysis
• PCB layout guidance for RF performance
• Debugging and root cause analysis
• Strong communication and customer interaction skills

Responsibilities

• Design and develop RF and microwave circuits including amplifiers, filters, mixers, oscillators, and antennas
• Perform schematic capture, simulation, and layout of high-frequency PCBs
• Select and apply advanced RF materials (e.g., Rogers laminates such as RO4350B, RO4003C, RT/duroid series)
• Conduct RF simulation using tools such as: Keysight ADS Ansys HFSS Cadence AWR Microwave Office
• Optimize impedance matching, signal integrity, and EMI/EMC performance
• Develop RF test plans and perform lab validation using VNAs, spectrum analyzers, and signal generators
• Collaborate with PCB layout, mechanical, and manufacturing teams to ensure design for manufacturability (DFM/DFA)
• Interface directly with customers to define requirements, present designs, and support technical reviews
• Support prototype builds, troubleshooting, and production ramp-up

Benefits

• Comprehensive benefit package including medical, dental and vision coverage
• Company-paid basic life/AD&D insurance, short-term and long-term disability insurance
• Voluntary supplemental insurances, flexible spending accounts and employee assistance program (EAP)
• Sick Leave, Vacation Time, and company-paid Holidays are also provided as paid time off
• NEOTech also provides a 401(k) Retirement Savings Plan option with a company match

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 251-500 employees