RF/Microwave Modules Engineer

6 days ago


Libertyville, Illinois, United States SuperApex LLC Full time

About Us

SuperApex LLC designs and manufactures high-performance RF and microwave products, including GaAs MMIC amplifiers, microwave circuits, and integrated RF modules. Our solutions serve customers across the defense, telecommunications, and research sectors worldwide. With facilities in the U.S. and Malaysia, SuperApex is rapidly expanding its R&D and advanced packaging capabilities in the 5G, SATCOM, and emerging 6G markets.

Position Overview

We're seeking an experienced
RF/Microwave Modules Engineer
to lead the design, development, and testing of high-frequency integrated modules and subsystems. The ideal candidate will have a solid foundation in MMIC integration, packaging, and RF performance optimization across the ~0 GHz – 65 GHz range.

Key Responsibilities

  • Design and develop
    RF/Microwave modules
    integrating MMICs, passive components, and antennas.
  • Lead the
    design, layout, and packaging
    of RF front-end assemblies, including Antenna-in-Package (AiP) and System-in-Package (SiP) architectures.
  • Perform
    RF simulations and circuit optimization
    using Keysight ADS, HFSS, and similar tools.
  • Collaborate with mechanical, process, and test engineers to ensure electrical, thermal, and mechanical integrity.
  • Conduct
    VNA, spectrum, and power measurements
    to characterize performance and validate designs.
  • Develop test plans, procedures, and documentation consistent with
    ISO 9001
    standards.
  • Support new product introduction (NPI) from prototype through production.

Required Qualifications

  • B.S. or M.S. in Electrical Engineering, Microwave Engineering, or a related field.
  • 3+ years of experience in RF/Microwave module or subsystem design.
  • Proficiency with
    Keysight ADS
    ,
    HFSS
    , or
    CST
    for circuit and EM simulation.
  • Hands-on experience with RF test equipment: VNA, spectrum analyzer, power meters, and noise figure analyzer.
  • Understanding of
    impedance matching, bias networks, and amplifier design
    (LNA, driver, PA).
  • Experience with
    GaAs/GaN MMICs
    , hybrid modules, or multi-chip packaging.

Preferred Qualifications

  • Experience with
    Antenna-in-Package (AiP)
    or
    module-level integration
    .
  • Familiarity with
    III–V semiconductor processes
    (GaAs pHEMT, GaN HEMT).
  • Knowledge of
    thermal management, interposers, and RF substrates
    (AlN, Rogers, etc.).
  • Experience with
    high-frequency test automation
    using
    Keysight PathWave, BenchVue
    , or LabVIEW.
  • Familiarity with
    ISO 9001 workflows and documentation
    .
  • Excellent communication and problem-solving skills, with the ability to collaborate across global teams.

Why Join SuperApex

  • Work on next-generation
    5G and 6G RF modules
    with real-world impact.
  • Collaborative, innovation-driven culture with strong R&D focus.
  • Competitive salary, comprehensive benefits, and growth opportunities in a global company.

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