RF & Antenna Engineer

Quantum Systems  next-generation unmanned solutions across air, land, and sea. From advanced aerial drones to underwater and ground platforms, our systems combine cutting-edge hardware with AI-driven software for seamless control and real-time data insights. Trusted by defense, security, and public sector clients worldwide, we redefine mission versatility and performance.

Quantum-Systems is a strong supporter of Ukraine and has it’s local Ukrainian office since 2022.

As RF & Antenna Engineer you will be responsible for defining, validating, and troubleshooting antenna and RF signal paths used in advanced UAV communication systems.

This is a full-time office job. Candidates must be located in Kyiv.

What is your Day to Day Mission:

• Develop and validate antenna and RF feed systems operating up to 5 GHz

• Perform RF measurements using Vector Network Analyzers (VNA) and interpret S-parameters (S11, S21)

• Measure VSWR, impedance, insertion loss, phase response, and group delay

• Diagnose and localize faults in RF cable assemblies using TDR/DTF

• Test antennas, cables, connectors, filters, attenuators, couplers, and other RF components

• Perform VNA calibration (SOLT, ideally TRL) and ensure measurement accuracy

• Analyze RF link performance, path losses, transmitter power, receiver sensitivity, and link budgets

• Develop test procedures, execute laboratory measurements, and prepare technical reports

• Support EMC/EMI investigations and RF troubleshooting activities

Nice to have

• Experience with Spectrum Analyzers, RF Signal Generators, and Power Meters

• Knowledge of EMC/EMI testing and troubleshooting

• Experience in UAV, aerospace, defense, robotics, or wireless communication systems

• Familiarity with antenna characterization and RF system integration

What you bring to the team:

• 3+ years of experience in RF testing, antenna systems, telecommunications, or related fields

• Strong understanding of RF signal chains, transmission lines, and 50 Ω systems

• Hands-on experience with VNA measurements and RF diagnostics

• Experience with TDR/DTF-based troubleshooting

• Ability to independently plan and execute RF validation activities

• Strong analytical and problem-solving skills

• English proficiency for technical communication and documentation

Why Quantum-Systems:

• We Stand with Ukraine!

• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.

• We are industry pioneers who are ambitious, bold, and visionary.

• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.

• We promise to be your runway for individual and professional growth.