Principal Rf Engineer

Platform Recruitment; Cambridge; On-site; GBP 90,000 - 130,000; Full time

Job summary

Platform Recruitment is seeking a Principal RF Engineer for a well-established mmWave company in Cambridgeshire. The role focuses on hands-on circuit and system design at 60GHz+ and guiding the team from concept to production.

You will lead RF block design, perform simulations, assess link budgets, and mentor other engineers while collaborating with systems, mechanical and production teams to deliver robust, field-ready products.

Qualifications

• Extensive RF circuit and system design experience at mmWave frequencies.
• Hands-on with RF lab equipment and measurement techniques.
• Experience taking products from concept to production.
• Degree in Electronic Engineering (PhD welcome).

Responsibilities

• Lead RF circuit and system design for mmWave products.
• Design and simulate RF building blocks: amplifiers, mixers, filters and transitions.
• Own RF system architecture, link budgets and cascade analysis.
• Take designs from simulation through prototype, test and production.
• Carry out lab characterisation at mmWave frequencies.
• Collaborate with systems, mechanical and production teams; mentor others.

Skills

RF circuit design

RF system design

mmWave experience

RF simulation tools

Lab measurement skills

Production scaling

Education

Bachelor's in Electronic Engineering

Tools

ADS

AWR Microwave Office

HFSS

CST Microwave Studio

Job description

Are you an RF engineer who designs circuits and systems at mmWave frequencies, and wants to work on products that go into real networks?

My client is a well-established RF and mmWave technology company with a growing design team in Cambridgeshire. They design and build high-frequency products used in telecoms, defence and space, working at 60GHz and 110GHz. They’re looking for a Principal RF Engineer to lead RF circuit and system design from concept through to production. This is a hands‑on senior role: you’ll design the circuits and also guide the technical direction of the team.

Responsibilities

• Lead RF circuit and system design for mmWave products (E-band and W-band)
• Design and simulate RF building blocks: amplifiers, mixers, multipliers, filters and transitions
• Own RF system architecture, link budgets and cascade analysis
• Take designs from simulation through to prototype, test and production
• Carry out lab characterisation and fault-finding at mmWave frequencies
• Work closely with systems, mechanical and production engineers
• Mentor and support other RF engineers in the team

Technical Requirements

• Extensive RF circuit and system design experience at mmWave frequencies (ideally 60GHz and above)
• Strong background in active and passive RF design, not purely antenna design
• Hands‑on with RF and EM simulation tools (e.g. ADS, AWR Microwave Office, HFSS, CST)
• Experience with mmWave lab test: VNAs, spectrum analysers, noise figure and power measurements
• Track record of taking RF products into production
• Degree in Electronic Engineering or similar (PhD welcome but not essential)
• Looking for a permanent position