Senior RF/EMC Engineer

Alarm.com · Tysons, Virginia

  • Senior
  • Full-time
  • $145,000 – $155,000
  • Posted 2026-10-29
  • Confirmed live on 30 October 2026

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Job description

Alarm.com is a rapidly expanding technology company developing innovative cloud and device solutions across a wide range of cutting-edge technologies that provide a unified, connected service to millions of residential and commercial properties in the US and abroad. We are looking for a talented and passionate senior RF/EMC engineer to join the Device Engineering team and help us define the future of the Internet-of-Things for residential and commercial properties by creating and integrating devices including security panels, networking gateways, and video cameras. You will be working with a team of talented engineers across a diverse set of technological backgrounds to design devices, build and manufacture hardware, architect and implement software, and collaborate in an agile and fast-paced environment.

You will own the RF design and EMC compliance of multi-radio devices at our Tysons, Virginia headquarters: cellular (LTE, Cat-M, NB-IoT, RedCap), Wi-Fi, Bluetooth, LoRa, and sub-GHz radios in security cameras, panels, sensors, and life-safety devices, often in small plastic enclosures next to cameras and switching power supplies. You will also mentor junior RF/EMC engineers on the team.

Responsibilities:

• Own the RF design and performance of assigned products, from requirements through certification and production.

• Design, select, and place antennas; design matching networks; and define RF layout, keepouts, and front-end circuits with the hardware and mechanical teams.

• Apply low-EMI design practices with the hardware team and lead RF/EMC schematic and layout reviews to catch risks before layout release.

• Evaluate and resolve receiver desense and coexistence between collocated radios and platform noise sources.

• Troubleshoot EMI and EMC failures to root cause and deliver fixes proven on hardware.

• Run antenna and EMI simulations to prevent failures and to debug them.

• Write RF performance and EMC compliance test plans; drive products through regulatory and carrier certification and work directly with test laboratories.

• Mentor junior RF/EMC engineers, review their results, and improve the team's design guidelines and test methods.

• Communicate effectively and collaborate with others to ensure the timely delivery of projects.

• Other duties as assigned.

Required Qualifications:

• Bachelor's degree in Electrical Engineering or a related field, with a focus on RF, microwave, or electromagnetics.

• 5+ years of RF and EMC design experience on wireless products, including designs you owned that shipped and passed regulatory certification.

• RF front-end and antenna design for compact products: antenna selection or design, multi-band impedance matching, placement, keepouts, and RF PCB layout.

• Low-EMI hardware design: stackup, grounding, return paths, filtering, shielding, and high-speed and switching-supply layout practices.

• Diagnosed and fixed receiver desense from platform noise or collocated radios, with the sensitivity loss quantified before and after.

• Root-caused and fixed radiated and conducted emissions and immunity failures using near-field probes, current probes, and spectrum analysis.

• Electromagnetic simulation with Ansys HFSS, SIwave, or equivalent tools, used to drive design decisions.

• Working knowledge of FCC, ISED, and CE/RED requirements, and experience writing RF and EMC test plans.

• Understanding of the cellular, Wi-Fi, Bluetooth, and sub-GHz protocol stacks and how they affect RF testing and coexistence.

• Expert use of VNAs, spectrum analyzers, signal generators, cellular and Wi-Fi communication testers, and anechoic chamber OTA systems.

• Explains trade-offs clearly to hardware, mechanical, firmware, and program teams; has mentored or wants to mentor junior engineers.

Preferred Qualifications:

• Master's degree in Electrical Engineering with an RF, microwave, or electromagnetics focus.

• Carrier and industry certification (PTCRB, operator OTA TRP/TIS requirements).

• Battery-powered or low-power wireless devices; cameras or other products with high-speed digital interfaces next to radios.

• Schematic capture and PCB layout in Altium.

• Python automation of RF measurements and data analysis, including with AI-assisted tools.

Please note that sponsorship of new applicants for employment authorization, or any other immigration-related support, is not available for this position at this time.

WHY WORK FOR ALARM.COM?

• Collaborate with outstanding people: We hire only the best. Our standards are high and our employees enjoy working alongside other high achievers.

• Make an immediate impact: New employees can expect to be given real responsibility for bringing new technologies to the marketplace. You are empowered to perform as soon as you join the Alarm.com team!

• Gain well rounded experience: Alarm.com offers a diverse and dynamic environment where you will get the chance to work directly with executives and develop expertise across multipl

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