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Freelance Rf Filter Design Engineer Jobs in Batavia, IL

LLRF FPGA Design Engineer

Batavia, IL ยท On-site

$111K - $146K/yr

Fermilab seeks a highly motivated LLRF System Design Engineer in the Accelerator Division RF Department's Low-Level RF Group to support operating systems in the Booster Synchrotron and new ...

Jr. ASIC Design Engineer

Batavia, IL ยท On-site

$70K - $93K/yr

Performing a leading role in Analog and RF ASIC design projects, while being able to contribute ... Bachelor's degree in an applicable Engineering discipline from an ABET accredited institution.

Showing results 21-40

Freelance Rf Filter Design Engineer information

See Batavia, IL salary details

$37.7K

$120K

$186.6K

How much do freelance rf filter design engineer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for freelance rf filter design engineer in Batavia, IL is $119,963.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,400.00 and $141,700.00 per year, depending on experience, location, and employer.

What does a freelance RF filter design engineer do?

A Freelance RF Filter Design Engineer specializes in designing, developing, and testing radio frequency (RF) filters that are used to allow or block specific frequency signals in electronic devices. They work independently or on contract to provide custom solutions for clients in telecommunications, aerospace, defense, and consumer electronics. Their role typically involves circuit simulation, schematic design, prototyping, and ensuring that filters meet technical requirements for performance and reliability. Freelance engineers often offer flexibility and specialized expertise for companies needing short-term or project-based RF filter development.

What is the difference between Freelance Rf Filter Design Engineer vs RF Circuit Design Engineer?

AspectFreelance Rf Filter Design EngineerRF Circuit Design Engineer
CredentialsTypically requires RF engineering certifications, specialized training in filter designRequires RF engineering degrees, certifications, and circuit design expertise
Work EnvironmentIndependent, project-based, often remoteIn-house or consulting, team-based environments
Industry UsageUsed in telecommunications, aerospace, defense for custom filter solutionsApplied across wireless, consumer electronics, and communication systems

While both roles involve RF engineering, a Freelance Rf Filter Design Engineer specializes in designing RF filters independently for various clients, focusing on custom solutions. An RF Circuit Design Engineer has a broader scope, working on various RF circuits within a company or project team. The freelance role offers flexibility and specialization, whereas the RF Circuit Design Engineer typically works within structured teams on diverse RF projects.

How do freelance RF filter design engineers typically collaborate with clients and other engineers during a project?

Freelance RF Filter Design Engineers often work remotely, using digital communication tools to collaborate with clients, project managers, and sometimes other engineering specialists. They typically participate in virtual meetings to discuss specifications, share design progress, and address technical challenges. Providing regular updates and detailed documentation is essential, as is being responsive to feedback and design revisions throughout the project. Clear communication and efficient use of simulation and CAD tools help ensure the final filter meets performance and integration requirements.

What are the key skills and qualifications needed to thrive as a freelance RF filter design engineer?

To thrive as a Freelance RF Filter Design Engineer, you need a solid background in electrical engineering, strong understanding of RF principles, and experience in filter design, typically supported by a relevant engineering degree. Proficiency with simulation tools like ADS, HFSS, or CST, and familiarity with PCB design software are commonly required, along with knowledge of relevant industry standards. Excellent problem-solving, communication, and time management skills help set candidates apart, especially when working with remote clients or multidisciplinary teams. These capabilities ensure precise, efficient filter designs that meet client specifications and project deadlines in a competitive market.

What are the most commonly searched types of Rf Filter Design Engineer jobs in Batavia, IL?

The most popular types of Rf Filter Design Engineer jobs in Batavia, IL are:

What cities near Batavia, IL are hiring for Freelance Rf Filter Design Engineer jobs?

Cities near Batavia, IL with the most Freelance Rf Filter Design Engineer job openings:

Principal Engineer, RF Power Amplifier Architect

Murata Americas

Arlington Heights, IL โ€ข On-site

Full-time

Posted 10 days ago


Job description

pSemi Corporation is a Murata company driving semiconductor integration. pSemi builds on Peregrine Semiconductor's 30-year legacy of technology advancements and strong IP portfolio but with a new mission-to enhance Murata's world-class capabilities with high-performance semiconductors. With a strong foundation in RF integration, pSemi's product portfolio now spans power management, connected sensors, optical transceivers, antenna tuning and RF frontends. These intelligent and efficient semiconductors enable advanced modules for smartphones, base stations, personal computers, electric vehicles, data centers, IoT devices and healthcare. From headquarters in San Diego and offices around the world, pSemi's team explores new ways to make electronics for the connected world smaller, thinner, faster and better.
Job Summary
This position is responsible for the leadership and design of advanced RF power amplifier platforms for cellular and Wifi front end applications. The individual will focus on the research and development of power amplifiers in various frequency bands using multiple semiconductor processes including SOI and GaAs.
The individual will work both independently and with the team to develop power amplifier techniques and architectures that demonstrate high performance, low cost APT and ET front end solutions. This role will work closely with pSemi and Murata management to further our front-end power amplifier capabilities and expertise.
The individual will work in a highly focused research team, to determine novel architectures, circuits, devices and methods for implementation of high-performance RF Power Amplifiers and transmit chains.
The successful individual will have strong understanding of advanced RF/mmWave power amplifiers for next generation cellular and 5G NR applications and must have a strong understanding of RFIC circuit design and the ability to coordinate activities necessary to complete major projects, requiring a wide variety of technical skills. The individual must have demonstrated experience in developing novel RF PA products, RFIC design, test and mass production product releases.
The individual will join a team of senior technologists responsible for driving our long-term architectural roadmap, building proof-of-concept prototypes, and ultimately developing successful technologies into high-volume products.
Roles & Responsibilities
This position has responsibility for:
  • Develop novel architectures, circuits, devices and methods for implementation of high-performance RF Power Amplifiers and transmit chains using co-design and co-simulation of active and passive circuitry.
  • Be company-wide technical authority on RF Power Amplifiers.
  • Drive company-level R&D investment strategy, portfolio prioritization, and executive technical decision support for RF Power Amplifiers.
  • Technical leadership of advanced RF power amplifier platforms for cellular and Wifi front end applications.
  • Driving advanced power amplifier design using multiple process technologies and supply modulations including envelope tracking.
  • Collaborate with multiple technical teams across pSemi and Murata on PA technologies.
  • Participate with other key stakeholders and suppliers to drive our long-term architectural roadmap for PA platforms.
  • Technically execute PA research, building proof-of-concept prototypes, and developing successful technologies into high-volume products.
  • Demonstrate technical leadership and provide guidance to push the boundaries of pSemi and Murata existing technology, directing future efforts regarding tools, technology, performance, and cost optimization.
  • Mentoring Senior Staff and Staff Engineers.
  • Product Documentation: Document all relevant product and design information to educate others on novel design techniques and provide guidance on product usage.
  • Product Characterization: Work with Characterization and Test Engineers to define, conduct and analyze data from product performance characterization.
  • Production ATE Development: Work with Test Engineers to define, develop and ramp production ATE solutions.
  • Product Support: Work with Product, Test and Manufacturing Engineers to help assess field failures, support yield improvements, failure analysis, etc.

Minimum Qualifications (Experience and Skills)
  • Typically 15+ years of RF FEM product development with strong technical skills including:
    • More than 5 years of direct experience with GaAs-based power amplifier product development.
    • At least 5 years of advanced development or research experience directly related to mobile power amplifier and/or transmitters.
    • Detailed knowledge and experience with design of envelope tracking (ET) PA for mobile applications.
    • Direct hands-on experience with the design of highly efficient and linear power amplifiers operating between 600 MHz and 20 GHz.
    • Deep understanding of technical principles of power amplifier operation and design.
    • Experience with transistor level IC design and layout in at least multiple technology nodes including:
      • GaAs HBT, CMOS-SOI, SiGe, GaN
      • Understanding of the comparative advantage and tradeoffs between the different processes
    • Good WIFI and/or cellular standard system knowledge and key performance metrics.
    • Knowledge of IC fabrication and how it impacts circuit performance.
    • Good understanding of non-linear effects in transistors.
    • Knowledge of basic analog bias and control circuits and their impact on overall RF system
    • Experience with EM (Electromagnetic) modelling of high frequency RFIC's and PCB's
    • Familiarity with analog & RF IC layout techniques
    • Extensive IC Tape-out experience
    • Strong experience in design, debug and optimization of RFICs in the lab using standard lab equipment
    • Hands on use of RF measurement equipment to validate and correlate performance metrics such as ACP/ACLR, EVM, IP3, NF and gain
    • Software tools: Virtuoso, Cadence Spectre, Keysight ADS, EM software, Matlab, JMP
    • Strength in documentation clarity and completeness
    • Ability to clearly assess and manage risk
    • Strong ability to collaborate in a group and cross-functional team environment with a strong sense of urgency to meet product requirements on schedule

Minimum Education Requirements
  • Master's degree in Electrical Engineering (or equivalent field); Ph. D. (or equivalent field) preferred

Work Environment
This job operates in a professional office environment. This role routinely uses standard office equipment.
Physical Demands
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; use hands to finger, handle or feel; and reach with hands and arms. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus. This position requires the ability to occasionally lift office products and supplies, up to 20 pounds.
USD 220,516.00 - 286,686.68 per year
pSemi Corporation supports a diverse workforce and is committed to a policy of equal employment opportunity for applicants and employees. pSemi does not discriminate on the basis of age, race, color, religion (including religious dress and grooming practices), sex/gender (including pregnancy, childbirth, or related medical conditions or breastfeeding), gender identity, gender expression, genetic information, national origin (including language use restrictions and possession of a driver's license issued under Vehicle Code section 12801.9), ancestry, physical or mental disability, legally-protected medical condition, military or veteran status (including "protected veterans" under applicable affirmative action laws), marital status, sexual orientation, or any other basis protected by local, state or federal laws applicable to the Company. pSemi also prohibits discrimination based on the perception that an employee or applicant has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics.
Note: The Peregrine Semiconductor name, Peregrine Semiconductor logo and UltraCMOS are registered trademarks and the pSemi name, pSemi logo, HaRP and DuNE are trademarks of pSemi Corporation in the U.S. and other countries. All other trademarks are the property of their respective companies. pSemi products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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