RADWIN | Chennai, India | Full-time

RADWIN is looking for a hands-on Senior RF Hardware Engineer to develop next-generation wireless hardware based on Qualcomm Wi-Fi chipsets, including RF front ends and frequency-conversion circuits.

Reporting to the RF & Antenna Team Leader, you will take technical ownership from system analysis and schematic design through board bring-up, calibration, performance optimization, and verification. You will work closely with engineering teams and technology vendors to bring designs into production.

Responsibilities

• Design Wi-Fi RF boards around Qualcomm radio ICs, including FEMs, PAs, LNAs, filters, switches, matching networks, and supporting power and clock circuits.
• Develop frequency-conversion circuits using synthesizers, PLLs, VCOs, mixers, and LO distribution. Evaluate phase noise, spurious signals, image rejection, and isolation.
• Create and maintain schematics in OrCAD Capture, select components, and prepare BOMs. Guide PCB layout and review stack-up, RF routing, controlled impedance, grounding, shielding, and decoupling.




• Bring up, tune, and characterize Wi-Fi hardware using chipset vendor tools. Configure and validate board data files (BDFs), front-end settings, TX power tables, and calibration data.
• Debug and optimize RF performance, including EVM, output power, receiver sensitivity, spectral emissions, IQ imbalance, LO leakage, and interference. Tune and validate digital predistortion (DPD), where applicable.
• Define and execute RF verification plans across frequencies, bandwidths, modulations, RF chains, temperatures, and supply conditions, including MIMO and multi-link operation where applicable.
• Develop automated measurement scripts, data analysis, and reporting tools for development, regression testing, and production support.
• Perform RF system analysis, including link budgets, cascaded gain and noise figure, linearity, energetic range, filtering, and spurious products. Use circuit and EM simulations to

📌 Senior RF Hardware Engineer – Wi-Fi and Frequency Conversion (Chennai)
🏢 RADWIN
📍 Chennai