RF Hardware Engineer

Hark

$120K — $300K *
Consumer Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • BS in Electrical Engineering or related field and 5+ years of RF hardware design experience (or MS and 3+ years)
  • Hands-on design experience with at least one radio technology: cellular (5G NR/LTE), Wi-Fi, Bluetooth, GNSS, NFC, or UWB
  • Strong RF fundamentals: transmission lines, impedance matching, RF front-end architecture, link budgets, noise, and linearity
  • Proficiency with RF lab equipment: vector network analyzers, spectrum analyzers, signal generators, communication testers, and OTA anechoic chambers
  • Experience taking a wireless product through at least one full development cycle to mass production

Responsibilities

  • Own RF hardware design for radios: architecture definition, RF front-end design, component selection, and PCB layout for RF optimization
  • Review PCB/flex layouts, RF routing, impedance control, and grounding strategies
  • Develop and execute validation and characterization test plans, analyze results, and drive design optimization
  • Lead RF failure analysis and propose corrective actions at the system level
  • Assess platform-level coexistence and interference issues
  • Drive factory RF calibration and define test limits throughout production cycles
  • Own the regulatory and carrier certification processes, interfacing with labs and stakeholders

Benefits

  • Collaborative cross-functional work environment
  • Exposure to the latest RF technologies and consumer hardware production
  • Opportunity to lead projects from design to mass production
  • Potential career growth within a high-tech company
  • Engagement with major wireless carriers and certification processes
Full Job Description
About the Role

We are looking for RF Hardware Engineer to design, integrate, validate, and certify wireless subsystems (cellular, Wi-Fi, Bluetooth, GPS/GNSS, NFC/UWB) in our consumer hardware products. You will own RF performance from architecture through mass production, working cross-functionally with antenna, mechanical, firmware and manufacturing teams, as well as external vendors, test labs, and carriers.

Responsibilities
  • Own RF hardware design for one or more radios: architecture definition, RF front-end line-up design and budget analysis (gain, noise figure, linearity, Tx power), component selection, and schematic/PCB design for optimal RF performance.
  • Review and sign off on PCB/flex layouts, RF routing, impedance control, system-level grounding, shielding, and isolation strategies.
  • Develop and execute validation and characterization test plans: conducted Tx/Rx measurements, OTA performance (TRP/TIS), desense, and multi-radio coexistence; analyze results and drive design optimization.
  • Lead RF failure analysis at system level; identify root cause and propose design or process corrective actions.
  • Assess and mitigate platform-level coexistence and interference issues (radio-to-radio, display/camera/charger noise into radios).
  • Drive factory RF calibration and test station bring-up (SMT and FATP), define test limits, and support yield and correlation analysis from prototype builds (EVT/DVT/PVT) through mass production.
  • Own regulatory and carrier certification: plan and support FCC/ISED/CE (RED), PTCRB/GCF testing, SAR/RF exposure, and carrier acceptance programs (e.g., T-Mobile, AT&T, Verizon); interface with certification labs and TCBs.
  • Work with component vendors and module/chipset partners on RF front-end development, tuning, and cost/performance trade-offs.
  • Support antenna integration: work with antenna engineers on matching, tuner control, and placement trade-offs; correlate simulation with measured results.
  • Communicate RF status, risks, and data-driven recommendations to cross-functional and executive stakeholders.

Requirements
  • BS in Electrical Engineering or related field and 5+ years of RF hardware design experience (or MS and 3+ years).
  • Hands-on design experience with at least one radio technology: cellular (5G NR/LTE), Wi-Fi, Bluetooth, GNSS, NFC, or UWB.
  • Strong RF fundamentals: transmission lines, impedance matching, RF front-end architecture, link budgets, noise, and linearity.
  • Proficiency with RF lab equipment: vector network analyzers, spectrum analyzers, signal generators, communication testers (e.g., Keysight UXM, R&S CMX/CMW), and OTA anechoic chambers.
  • Experience taking a wireless product through at least one full development cycle to mass production.

Bonus Qualifications
  • MS/PhD in Electrical Engineering with emphasis in RF/microwave or wireless communications.
  • Experience with regulatory and carrier certification processes (FCC, ISED, CE RED, PTCRB/GCF, carrier TA).
  • Experience with RF simulation tools (ADS, HFSS, CST, AWR) and RF line-up modeling.
  • Experience with factory RF calibration/test development and station correlation (SMT and FATP OTA).
  • Test automation and scripting skills (Python, MATLAB, SCPI instrument control).
  • Knowledge of antenna design, tuning, and OTA measurement methods (CTIA test plans).
  • Experience with multi-radio coexistence analysis and mitigation in compact consumer devices.

The US base salary range for this full-time position is between $120,000 - $300,000 annually.

The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience. The total compensation package may also include additional components/benefits depending on the specific role. This information will be shared if an employment offer is extended.

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