Senior RF Design Engineer — High-Freq Wireless/Radar

Molex; Cumbernauld; On-site; GBP 91,000 - 136,000; Full time

Job summary

Molex in the United Kingdom seeks a Senior RF Engineer to join the Engineering team in Cumbernauld, North Lanarkshire. You will lead RF circuit and subsystem design for high-frequency applications, guiding from concept to production and ensuring exceptional performance.

You will perform simulations with ADS, HFSS and SPICE, translate designs into manufacturable layouts using Altium Designer, and mentor junior engineers while collaborating with mechanical, digital, and manufacturing teams.

Qualifications

• 10+ years of hands-on experience in RF design, simulation, and testing.
• Expert-level proficiency with Keysight ADS, Ansys HFSS and SIwave simulation tools.
• Proven track record of delivering high-performance RF designs from concept through production.
• Deep understanding of RF principles, including impedance matching, filter design, and electromagnetic compatibility.
• Strong problem-solving skills and the ability to work independently on complex technical challenges.

Responsibilities

• Lead the design and development of advanced RF circuits, subsystems, and modules for applications ranging from wireless communications to radar.
• Perform detailed simulations using ADS, HFSS, and SPICE to optimize performance, minimize losses, and ensure compliance with specifications.
• Translate designs into manufacturable layouts using Altium Designer, collaborating closely with PCB layout engineers to meet RF performance goals.
• Conduct rigorous bench testing, validation, and troubleshooting of prototypes, using state-of-the-art RF test equipment.
• Work cross-functionally with mechanical, digital, and manufacturing teams to ensure seamless integration of RF designs into complete systems.
• Mentor junior engineers, sharing best practices.

Skills

RF design

High-frequency simulations

ADS

HFSS

SIwave

Altium Designer

Mentoring

Problem solving

Independent work

Tools

Keysight ADS

Ansys HFSS

SIwave

Altium Designer

Job description

Molex in the United Kingdom seeks a Senior RF Engineer to join the Engineering team in Cumbernauld, North Lanarkshire. You will lead RF circuit and subsystem design for high-frequency applications, guiding from concept to production and ensuring exceptional performance.

You will perform simulations with ADS, HFSS and SPICE, translate designs into manufacturable layouts using Altium Designer, and mentor junior engineers while collaborating with mechanical, digital, and manufacturing teams.