Radio Frequency (RF)/ Antenna Engineer

HiQo Solutions operates with international teams and foreign customers, offering projects in the RF domain including design reviews, antenna development and integration, tuning, transmission line and filter work, near-field and EMC debugging, and pre-compliance measurements.

• Solid knowledge of RF and antenna fundamentals
• Good understanding of electromagnetic waves and propagation
• Good knowledge of analog and high-speed digital electronics
• Solid experience with transmission lines, impedance matching, and confident use of the Smith chart
• Hands-on experience with any full-3D EM simulation tool (HFSS, CST, openEMS, EMerge or similar)
• Practical and wide experience with a VNA and a spectrum analyzer
• Good communication skills and B2+ level of English (daily communication with the team and clients)

Nice to have:

• Experience with full FCC / ETSI certification campaigns and accredited test labs
• Experience with radiated measurements on bench or semi-anechoic/anechoic setups
• Experience with EMC troubleshooting and debugging with near-field probes
• Experience with PCB CAD tools (Altium, KiCad, or similar)
• Knowledge of PCB materials and manufacturing tolerances (FR4 vs Rogers, over-etch, Dk spread)
• Understanding of PCB stack-up choices, RF grounding, vias, discontinuities, and component placement
• Programming and scripting skills (Python, MATLAB, C)
• Good communication and teamwork with hardware and firmware engineers

• Working on RF-related projects requiring review, troubleshooting, and improvements
• Designing transmission lines, matching networks, and filters
• Building prototypes and test fixtures; preparing samples for measurement
• Measuring on a VNA and spectrum analyzer: S-parameters, impedance, power, harmonics, spurious emissions, and occupied bandwidth
• Tuning antennas with discrete matching networks on bare PCBs and inside enclosures
• Designing and modeling antennas and RF structures in EM solvers, running parametric sweeps and optimization
• Probing boards with near-field probes to localize EMC interference sources and propose concrete fixes
• Running, assisting, or consulting on conducted and radiated pre-compliance sweeps and assessing certification pass risk
• Writing measurement reports, review findings, and recommendations
• Contributing to internal measurement methods, fixtures, test setups, and report templates