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.