Senior Radio Frequency (RF)/ Antenna Engineer

HiQo Solutions works on a wide range of client projects involving RF, antennas, EMC, and high-speed electronics hardware which is unique for each project. The company offers flexibility to work from offices in Krakow, Wroclaw, or remotely.

• Strong knowledge of RF and antenna fundamentals
• Strong 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 a full-3D EM simulation tool such as HFSS, CST, openEMS, EMerge, or similar
• Extensive practical experience with a VNA and spectrum analyzer
• Strong understanding of RF measurement techniques and interpretation of measurement results
• Practical experience with antenna tuning, matching networks, and RF troubleshooting
• Good understanding of PCB RF design, stack-ups, grounding, vias, discontinuities, and component placement
• Ability to independently investigate complex RF/antenna problems and turn measurement and simulation results into practical engineering solutions
• Strong communication skills and B2+ level of English, including direct communication with 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
• Strong experience with EMC troubleshooting and near-field probes
• Experience with PCB CAD tools such as Altium or KiCad
• Knowledge of PCB materials and manufacturing tolerances, including FR4 vs. Rogers, over-etch, and Dk spread
• Programming and scripting skills in Python, MATLAB, C, or similar
• Experience working closely with hardware and firmware engineers
• Previous experience mentoring engineers or leading technical workstreams

• Independently leading RF-related projects involving design reviews, troubleshooting, and improvements
• Designing transmission lines, matching networks, filters, antennas, and RF structures
• Building prototypes and test fixtures; preparing samples for measurement
• Performing and interpreting VNA and spectrum analyzer measurements, including 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 full-3D EM solvers (e.g., HFSS, CST)
• Running parametric sweeps, optimization, and sensitivity analysis
• Debugging EMC issues using near-field probes and identifying practical design fixes
• Running, assisting with, or consulting on conducted and radiated pre-compliance measurements
• Assessing certification pass risk and recommending appropriate design changes
• Reviewing PCB layouts, RF grounding, stack-ups, vias, discontinuities, and component placement
• Communicating technical findings and recommendations directly to clients
• Writing measurement reports, design reviews, and technical recommendations
• Mentoring less experienced RF engineers and supporting internal knowledge development
• Contributing to internal measurement methods, fixtures, test setups, and report templates