Demo

Sr. RF Design Engineer

Mini-Circuits and Careers
Deer Park, NY Full Time
POSTED ON 12/28/2025
AVAILABLE BEFORE 2/28/2026
Mini-Circuits designs, manufactures and distributes integrated circuits, modules, and sub-systems for high-performance radio frequency (RF) and microwave applications. With design, sales and manufacturing locations in over 30 countries, Mini-Circuits’ products are used in a range of wired and wireless communications applications. Our products are also used in detection, measurement and imaging applications, including military communication, guidance and electronic countermeasure systems, commercial, scientific, military land, sea and aircraft; automotive systems, medical systems, and industrial test equipment.

Mini-Circuits’ sells its products to over 20,000 customers globally through our direct sales force, applications engineering staff, sales representatives, as well as through our extensive website.

Position Summary:

We are seeking a highly skilled and motivated Senior RF Design Engineer to design and develop advanced RF and microwave systems, with a focus on high-power amplifier (HPA) and high-frequency (HF/mmWave) technologies. This role requires a strong theoretical background, hands-on design experience, and the ability to mentor junior engineers while driving innovation in products up to 67 GHz and beyond.

Salary Range: $165,000 - $185,000 per year
Job Function:
  • Lead the design, simulation, testing, and release of RF Power Amplifiers and high-frequency components (active and passive) for both catalog and custom applications.
  • Develop and optimize RF circuits and systems, including power combiners/dividers, couplers, filters, protection and monitoring circuitry, and DC biasing networks.
  • Utilize advanced simulation tools (ADS, AWR, HFSS, CST, Momentum) and CAD tools (OrCAD, AutoCAD) for schematic capture, layout, and modeling.
  • Perform hands-on tuning, testing, and troubleshooting of RF hardware using spectrum/network analyzers, power meters, and other lab equipment.
  • Collaborate with mechanical, manufacturing, and quality teams to ensure design for manufacturability and cost-effective production.
  • Collaborate with program management team on project planning and execution, including milestone tracking, reporting, and cross-functional coordination.
  • Author technical documentation, application notes, and contribute to technical publications and webinars.
  • Support ISO audits, internal reviews, and continuous improvement of engineering processes. Support evaluation of components, materials & suppliers.
  • Provide technical support directly to customers. Periodically travel to customer meetings.
  • Demonstrates strong initiative and independent problem-solving skills.
  • Ensure high-quality execution of RF design and development projects.
Supervisory Responsibilities:
  • Mentor junior technical staff.
  • Actively participate in design review meetings.
  • Provide technical vision and direction to ensure the development team is aligned with the strategy of the company.
The duties, responsibilities and expectations described above are not a comprehensive list and additional tasks may be assigned to the member, within the scope of the position.
Qualifications:
  • MSEE with minimum of 5 years’ related experience
  • BSEE with minimum 10 years’ related experience.
  • Minimum of 5 years’ relevant experience in RF and/or mmWave amplifier design including RF bench experience.
  • Ability to “Lead from the Bench” junior designers with demonstrated hands-on bench skills in RF disciplines, including fine soldering of SMT components, RF measurements, calibration techniques, and rapid prototyping. Ability to create designs and solutions across a multitude of daily challenges and ability to encourage and lead others in the same creative spirit.
  • Strong knowledge of circuit simulation concepts. Ability to merge theory with practice on the bench.
  • Professional and positive approach, self-motivated, strong in building relationships, team player, dynamic, creative with the ability to work on own initiative.
  • Demonstrated strong oral and written communication skills.
  • Experience working for an ISO company that practices LEAN manufacturing.
  • “Out of the box thinker” must be key driver willing to take innovative product risk while balancing the road map for on time deliverables.
  • Strong relationship management, project management, problem solving and change management skills.
  • Manage diverse, simultaneous projects of varying complexities.
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 and hear. The employee frequently is required to stand, walk, sit and use hands to operate a computer keyboard. The employee is occasionally required to reach with hands and arms. The employee must occasionally lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision, and ability to adjust focus. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Cultural Focus:
  • Displays enthusiasm and Passion for their work. Works to the standard of Uncompromising Quality by meeting or exceeding stated objectives and embracing continuous improvement.
  • Exercises sound Business Judgement, ensuring that efforts are on track with the Company’s goals.
  • Operates with the mindset of Customer Obsession – by meeting or exceeding expectations to both internal and external customers.
  • Takes Accountability by taking ownership and accepting responsibility for their conduct and contributions.
  • Demonstrates a strong sense of urgency and accomplishes tasks with Speed and attention to detail.
  • Cooperates, collaborates and contributes to shared goals with a strong sense of Teamwork.
  • Conducts themselves with Honesty & Integrity and treats all members with Trust & Respect.
Additional Requirements/Skills
  • Comply, understand, and support corporate safety initiatives to ensure a safe work environment
  • Ability and willingness to abide by Company’s Code of Conduct
  • Must be a US Citizen or US Permanent Resident (Green Card Holder) due to ITAR compliance.
Benefits: We offer a comprehensive package of benefits including paid time off, medical/dental/vision insurance, and 401(K) to eligible employees.
  • Comprehensive Medical, Dental, and Vision plans
  • 401(K) and Profit-Sharing Programs
  • Disability Insurance
  • Life Insurance
  • Employer-Sponsored Wellness Plans
  • Commuter Benefits
  • Hospital & Accident Indemnity Insurance
  • Employee Benefit Advocate & Employee Assistance Program

Disclaimer: The listed qualifications and requirements for each position are intended as guidelines. Mini-Circuits reserves the right to hire outside of these guidelines at Management’s discretion.
Mini-Circuits is an Equal Opportunity Employer and does not discriminate on the basis of actual or perceived age, race, creed, color, national origin, sexual orientation, military status, sex, disability, predisposing genetic characteristics, marital status, familial status, gender identity, gender dysphoria, pregnancy-related condition, and domestic violence victim status or protected class characteristic, or any other protected characteristic as established by federal or state law.

Salary : $165,000 - $185,000

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