Job Vacancies

Plextek RFI is an independent design house based near Cambridge in the UK. We specialise in the design and development of RFICs, MMICs and microwave/mm-wave modules. We are currently seeking to expand our experienced design team with the following positions;


MMIC Design Engineer

We are seeking an experienced MMIC design engineer with a minimum of 3 years relevant design experience. Successful candidates will have designed GaAs and/or GaN ICs on commercial or captive foundries. The role will include design, layout and RFOW evaluation work.


Graduate RF/Microwave Design Engineer

We are seeking a graduate engineer with 2 to 5 years of design experience at RF/microwave frequencies. Experience of IC design is not essential as appropriate training will be provided.

Candidates should have a good understanding of transistor level RF design, s-parameters, the Smith Chart, microstrip circuit design, RF test/evaluation (s-parameters, power compression, IP3, NF).


To apply please email us at or alternatively you can send your CV and a covering letter to the address below:

Human Resources Dept.
Plextek RFI Ltd.
The Plextek Building
London Road
Great Chesterford
Saffron Walden, CB10 1NY, UK

All information you provide will be treated in the strictest confidence and will only be reviewed by authorised Plextek staff for the purpose of assessing your suitability for working with us.