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Freelance Rf Filter Design Engineer Jobs in Union, NJ

Varsity Tutors

Electrical Engineering Tutor

Summit, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

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Electrical Engineering Tutor

Hoboken, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

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Electrical Engineering Tutor

Elizabeth, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

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Electrical Engineering Tutor

Paramus, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

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Electrical Engineering Tutor

Paterson, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

Varsity Tutors

Electrical Engineering Tutor

Westfield, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

Varsity Tutors

Electrical Engineering Tutor

Clifton, NJ · Remote

$18 - $40/hr

What We Look For In a Electrical Engineering Tutor * Advanced Subject Mastery: Deep knowledge of ... Skilled at breaking down AC circuit analysis, filter design, and control system stability analysis.

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All JobsFreelance Rf Filter Design Engineer JobsFreelance Rf Filter Design Engineer Jobs in Union, NJ

Freelance Rf Filter Design Engineer information

See Union, NJ salary details

$37.7K

$119.9K

$186.5K

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

As of Jul 1, 2026, the average yearly pay for freelance rf filter design engineer in Union, NJ is $119,920.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,400.00 and $141,600.00 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, and why are they important?

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 job categories do people searching Freelance Rf Filter Design Engineer jobs in Union, NJ look for? The top searched job categories for Freelance Rf Filter Design Engineer jobs in Union, NJ are:
What cities near Union, NJ are hiring for Freelance Rf Filter Design Engineer jobs? Cities near Union, NJ with the most Freelance Rf Filter Design Engineer job openings:
Freelance Rf Filter Design Engineer jobs near you
RF Induction Systems Engineer - Crystal Growth & Melting Equipment

RF Induction Systems Engineer - Crystal Growth & Melting Equipment

Coherent Corp.

Budd Lake, NJ • On-site

Full-time

Posted 19 days ago

Job description


Key Responsibilities
RF System Design & Development
  • Design and optimize current RF induction heating systems (typically 1-50 kHz range)
  • Develop and tune series and parallel resonant circuits for high-power operation
  • Specify and integrate RF generators, matching networks, and capacitor banks
  • Design and optimize induction coils for thermal profile and coupling efficiency

Process & Equipment Engineering
  • Support and develop crystal growth melting systems
  • Optimize thermal gradients, melt stability, and power delivery
  • Integrate RF systems with crystal growth platforms (e.g., CZ, HEM, skull melting)
  • Develop process recipes and operating envelopes for different materials

Modeling & Simulation
  • Perform electromagnetic and thermal simulations (e.g., COMSOL, ANSYS)
  • Model coupling efficiency, current distribution, and heating profiles
  • Analyze load-dependent impedance behavior and resonance shifts

System Tuning & Troubleshooting
  • Lead tuning of RF systems under dynamic load conditions
  • Diagnose issues related to:
    • detuning and reflected power
    • instability and oscillation
    • coil overheating and inefficiency
  • Optimize performance across full process cycle (cold start → melt → steady-state)

Hardware Integration
  • Design and review:
    • coil assemblies
    • cooling systems (water-cooled copper structures)
    • bus bars and power delivery systems
  • Ensure robust high-current, low-loss electrical connections

Testing & Validation
  • Develop test plans and validation procedures
  • Analyze system performance using:
    • current/voltage measurements
    • phase and impedance analysis
    • thermal diagnostics
  • Lead commissioning of new equipment and upgrades

Cross-Functional Collaboration
  • Work with materials scientists, process engineers, and mechanical teams
  • Support scale-up from R&D to production systems
  • Provide technical leadership and mentorship to junior engineers

Required Qualifications
  • Bachelor's or Master's degree in Electrical Engineering, Physics, or related field
  • 5+ years of experience in RF power systems, induction heating, or high-power electronics
  • Strong understanding of:
    • resonant circuits (series and parallel)
    • impedance matching
    • RF power delivery systems
  • Hands-on experience with induction heating systems (kHz range preferred)
  • Experience with high-temperature or vacuum systems

Preferred Qualifications
  • Experience with crystal growth systems (CZ, HEM, skull melting, Bridgman)
  • Familiarity with reactive oxide or semiconductor materials
  • Experience with COMSOL, ANSYS Maxwell, or similar tools
  • Knowledge of:
    • thermal management and cooling design
    • high-current bus design
    • vacuum and controlled atmosphere systems
  • Experience working with RF generators (solid-state or tube-based)

Key Skills
  • RF system tuning and optimization
  • Electromagnetic and thermal analysis
  • Troubleshooting complex coupled systems
  • Hands-on experimental and debugging skills
  • Strong problem-solving and analytical thinking

Working Environment
  • Combination of lab, pilot production, and engineering design environment
  • Exposure to high-temperature systems, high current RF equipment, and vacuum systems
  • Requires hands-on work with experimental setups and industrial-scale equipment

Safety Requirements
All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
Quality and Environmental Responsibilities
Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.
Culture Commitment
Ensure adherence to company's values (ICARE) in all aspects of your position at Coherent Corp.:
Integrity - Create an Environment of Trust
Collaboration - Innovate Through the Sharing of Ideas
Accountability - Own the Process and the Outcome
Respect - Recognize the Value in Everyone
Enthusiasm - Find a Sense of Purpose in Work
Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
If you need assistance or an accommodation due to a disability, you may contact us at talentacquisition@coherent.com.
About Us
Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!
Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.

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