RF Systems Engineer

Optiver builds long-range HF communication systems where RF performance directly influences end-to-end trading system performance. We are looking for an RF Systems Engineer to design, integrate, characterize and improve the RF subsystems behind these systems.

• Low-power RF receive systems: filtering, amplification, signal conditioning, and integration with antennas and antenna arrays.

• High-power RF transmit systems: power amplification, impedance matching, transmission lines, protection systems, and integration with antennas and antenna arrays.

Your primary responsibility is the end-to-end analog RF subsystem: you own its design and performance, and dive into individual components whenever that is what it takes to improve the whole. You should be equally comfortable with equations, models, simulation, laboratory measurements and real-system data.

You will work closely with system, algorithm, digital hardware, software, and test engineers, translating system objectives into RF requirements and RF measurements into engineering decisions.

• Own the design, integration, characterization and performance of the analog RF receive and transmit chains

• Work with high-power transmit hardware, including power amplifiers, combiners, couplers, transmission lines and protection systems. Characterize gain, efficiency, linearity, harmonics, thermal behavior and load-mismatch tolerance

• Design and optimize impedance-matching and tuning solutions for changing antenna loads, balancing bandwidth, power handling, efficiency and reflected power

• Develop and integrate low-power receive chains, including LNAs, filters, switches and matching networks

• Work with antennas and antenna arrays: impedance, bandwidth, radiation performance, feed systems, phasing and mutual coupling. Simulate antennas and antenna arrays with electromagnetic simulation tools such as <span