# Device Engineer II (RF/EMC) at Alarm.com > United States · Mid-level · Software engineering · open. Source: https://alderhq.app/jobs/greenhouse%3Aalarmcom%3A8924631002 (read 2026-11-05). ## Facts (observed) - Company: [Alarm.com](https://alderhq.app/companies/alarm-com) - Location text: Tysons, Virginia; Tysons, VA - Where it can be done from (inferred): United States (evidence: "Location: Tysons, Virginia; Tysons, VA") - Posted: 2026-10-29 (7 days ago) - First seen by alder: 2026-11-02 · last verified: 2026-11-04 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.greenhouse.io/alarmcom/jobs/8924631002 ## Pay and sponsorship - Posted pay: $88k–$123k per year (from the listing's pay field) - Market band for similar posted roles (Washington DC, n 16): p25 $105k, median $110k, p75 $130k - H-1B filings at this company for similar roles, FY26: 1 ([US DOL OFLC LCA disclosure data](https://www.dol.gov/agencies/eta/foreign-labor/performance)) ## Description (the employer's text) ### POSITION OVERVIEW 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 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 work on cellular (LTE, Cat-M, NB-IoT, RedCap), Wi-Fi, Bluetooth, LoRa, and sub-GHz radios in security, sensing, and life-safety devices. About two-thirds of the role is RF performance and EMC testing and verification, done independently. The other third is design: matching antennas, reviewing RF and EMI-sensitive circuits, and turning test failures into design fixes, working with senior RF engineers who will grow you into simulation and RF circuit design. ### What You'll Learn and Work On Areas the team owns; prior exposure is a plus, not a prerequisite. - RF performance testing, conducted and over-the-air: TRP/TIS, output power, spectrum, and receiver sensitivity. - EMC pre-compliance testing and debugging: radiated and conducted emissions and immunity. - Antenna matching, characterization, and placement in the product enclosure. - RF front-end and EMI design reviews, and design fixes proven on the bench. - Antenna and EMI simulation with Ansys HFSS and SIwave. - Regulatory certification support (FCC, ISED, CE/RED) at external laboratories. - Test automation for repeatable measurements. ### Responsibilities - Independently plan and perform RF performance and EMC pre-compliance testing on multi-radio hardware against product specifications and regulatory requirements (FCC, ISED, CE/RED). - Document and analyze results; state the impact on product performance and communicate findings to design and program teams. - Design and tune antenna matching networks, single- and multi-band, and characterize antennas in the product enclosure. - Participate in schematic and layout reviews of RF front ends, antennas, and EMI-sensitive circuits. - Troubleshoot RF performance and EMC failures, propose design changes, and verify them on the bench. - Contribute RF circuit blocks and run antenna and EMI simulations with senior engineers. - Support certification testing: prepare samples, write test instructions, and witness testing at external laboratories. - Automate repeated measurements to increase test throughput and reliability, using AI and software tools. - 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 technical field, with coursework or experience in RF, microwave, or EMC. - 2+ years of hands-on RF or EMC testing; graduate research and co-ops count. - Works independently: scopes their own work, follows through, and communicates progress and blockers early. - RF and EMC test results analysis and able to explain results to non-RF team members. - Hands-on use of spectrum analyzers, vector network analyzers, signal generators, oscilloscopes, DC power analyzers, and cellular communication testers. - Designs single-band impedance matching networks from VNA measurements using Smith chart fundamentals. - Understands the types and sources of EMI and common mitigation: filtering, shielding, grounding, and layout. - Experience reading schematics and PCB layouts. - Familiar with cellular, Wi-Fi, Bluetooth, and sub-GHz IoT protocols. - Clear written and verbal communication of results to design and program teams. ### Preferred Qualifications - Master's degree in Electrical Engineering. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Aalarmcom%3A8924631002 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.