RF Design Engineer

We are looking for an RF Engineer who can design, simulate, and validate Sub-GHz and Wi-Fi/BLE radio systems and perform RF PCB layout. This is an end-to-end role spanning architecture, simulation, PCB implementation, prototyping, lab validation, and certification (FCC/CE only - no carrier certification).

We build RF/RFID anti-theft technology solutions for apparel labeling, item tagging, and tag readers for retail and industrial environments. You will own the RF front end, antenna integration, controlled-impedance layout, and bring-up of complex PCBs used in our wireless products. You will work closely with electrical, mechanical, firmware, manufacturing, and test teams to deliver robust, manufacturable RF designs.

JOB DUTIES


RF System Design

• Design Sub-GHz ISM (e.g., 850 - 950 MHz) and 2.4 GHz Wi-Fi/BLE RF front ends.
• Create link budgets, block diagrams, matching networks, power budgets, and specifications.
• Component selection for PAs, LNAs, filters, switches, mixers, couplers, and RF shields.
• Antenna evaluation and integration (chip, PCB trace, external, diversity).

RF PCB Design

• Full ownership of RF zones on multilayer PCBs.
• Define stack-up, controlled impedance routing, grounding, isolation, stitching, and keep-outs.
• Work directly in Siemens PADS for schematics + layout (not just oversight).
• Lead DFM/DFT reviews and coordinate with fabrication/assembly partners.

Simulation & Analysis

• Use Dassault CST, Siemens HyperLynx, Keysight ADS, or similar tools for S-parameters, matching, stability, and radiation effects.
• Perform EM analysis for antenna tuning and layout-dependent parasitics.
• Support coexistence analysis between Sub-GHz and 2.4 GHz radios.

Lab Bring-Up & Validation

• Use VNA, spectrum analyzer, signal generator, power meter, and oscilloscopes.
• Conduct S11/S21 measurements, EVM checks, output power, sensitivity, desense analysis, and coexistence testing.
• Tune antenna/matching networks and document all tuning steps.
• Support environmental testing (temperature, vibration, humidity) as relevant to RF performance.

Compliance & Certification

• Execute FCC/CE/UKCA and EMC/EMI requirements (no cellular carrier certification).
• Work with external labs for testing; generate test reports and resolve findings/NCs.

Cross-Functional Support

• Collaborate with FW for RF calibration/test flows.
• Work with manufacturing on golden units, calibration constants, and test limit development.
• Support field failure analysis and yield improvements during NPI.

•EDUCATION

• B.S. or M.S. in EE or related field.
• IPC CID certification (plus).

EXPERIENCE

• 5-8+ years owning RF designs from concept production.

KNOWLEDGE, SKILLS, & ABILITIES (KSA's):

• Deep experience with Sub-GHz ISM radios and Wi-Fi/BLE coexistence.
• Strong proficiency in RF layout, isolation, stack-up, and parasitic control.
• Experience taking products through FCC/CE certification with minimal NCs.
• Experience using Dassault CST, Siemens HyperLynx, Keysight ADS, Cadence AWR, Matlab, or EM simulation (antenna/matching).
• High-volume manufacturing experience (DFM for HDI, low-loss laminates, shields).
• Ability to mentor junior engineers and lead design reviews.
• Familiarity with OTA, SAR, and EMC testing environments.
• Work with Qualcomm/NXP/Nordic/TI/Silicon Labs chipsets.

Job Type: Full-Time - Exempt

Pay: $120,000.00-$140,000.00

Benefits:

• 401 (k)
• 401 (k) Matching
• Medical Insurance
• Dental Insurance
• Vision Insurance
• Life Insurance
• Employee Assistance Program
• Employee Discount
• Paid Time Off
• Tuition Reimbursement
• Flexible Spending Account
• Health Savings Account

Schedule:

• Monday to Friday
• Weekends as needed

Work Location: In office