RMX Technologies(865) 777-2740


RMX Technologies is an organization focused on creation and invention through our expertise in plasma and electromagnetic processing. RMX provides customized industrial material processing solutions that improve existing products and processes by using advanced plasma, carbon fiber, and ceramic technologies to lower production costs and reduce processing times while reducing environmental impact.  We provide a vibrant workplace environment that minimizes bureaucracy and maximizes productivity.  RMX is a growing company with an exciting future that starts now.

We are looking forward to reviewing your resume and interest in working with us.

Feel free to submit your resume to us here



RF Engineer

RMX is leading the way in innovative materials processing technologies designed to reduce manufacturing costs, increase performance or produce results not previously possible.  We are seeking a highly motivated, bright individual in the RF and Antenna engineering field to fill a full-time opening in Knoxville, TN.  Due to export control restrictions of our work, U.S. citizenship or U.S. permanent residence (green card holder) is required.

What you will do:

  • Design, simulate, model, fabricate and assemble RF and microwave equipment for a variety of materials processing and plasma related applications.
  • Participate in and/or lead experimental research teams in exciting new materials processing applications.
  • Work closely with experimental research and development teams
  • Provide input for future direction of prototypes and processes

The type of person we want:

  • An achiever focused on producing results
  • Has a desire to work in a small business environment involving high risk and high reward
  • Self-motivated, highly driven individual that can work alone or in a team
  • One with flexibility, adaptation, and the desire to achieve
  • Can work with diverse partners and teams

The skills we require:

  • Experience in all aspects of RF power electronics engineering design (modeling, power supply design, impedance matching, antenna design)
  • Experience in RF and microwave ranges of implementation
  • Experience in the use of CST for antenna design and performance modeling
  • Hands on implementation of basic design
  • Drafting of reports and test plans
    • Ability to accurately create, enact, and follow concise test plans
    • Ability to reliably document electromagnetic testing
  • Experience with the following measurement equipment:
    • Vector Network Analyzers (VNA)
    • Spectrum Analyzers
  • Experience with dielectric spectroscopy or electromagnetic characterization / measurement of materials

The skills we prefer:

  • Antenna design experience
  • Ability to develop new designs from scratch and take that an idea from creation to implementation in a lab environment
  • Experience in power supply design techniques focused on efficiency and economics
  • Experience in DoE (Design of Experiments) implementation
  • Experience in the use of COMSOL software for multi-physics applications
  • Knowledge of non-thermal plasma physics and chemistry
  • Experience in SolidWorks
  • Design of frequency selective surfaces (FSS) or periodic structure based meta-materials
  • Up-to-date and Interest in cutting edge RF and microwave technology.