Octagon Group
Senior MMIC Design Engineer
Requirements
Requires significant commercial MMIC design experience in the semiconductor industry with a strong knowledge of GaAs and GaN HEMT technologies. A degree, master's, or PhD in Electronic, RF, or Microwave Engineering is required.
Job Description
Senior MMIC Design Engineer
Location: Sedgefield, County Durham
Working pattern: Hybrid working available
Salary: Competitive and dependent on experience
Visa Sponsorship: Available
A growing technology business operating across the space, aerospace and defence sectors is looking for an experienced Senior MMIC Design Engineer to join its expanding engineering team.
You’ll design and develop high-performance MMIC solutions operating from 37GHz to 115GHz and beyond, taking projects from initial concept through simulation, layout, fabrication and device verification.
Key responsibilities
- Design and layout MMICs using GaAs, GaN and/or InP technologies
- Develop RF circuits including PAs, LNAs, gain blocks, converters, attenuators and frequency multipliers
- Perform circuit simulation, optimisation and design verification
- Work closely with semiconductor foundries throughout fabrication
- Characterise devices using probe stations and RF laboratory equipment
- Support thermal analysis, reliability assessments and technical design reviews
- Mentor engineers and contribute to future technology development
Essential experience
- Significant commercial MMIC design experience within the semiconductor industry
- Proven experience designing RF amplifiers, LNAs or frequency-conversion circuits
- Strong knowledge of GaAs and/or GaN MMIC HEMT technologies
- Experience taking MMIC designs from concept through fabrication and verification
- Hands-on RF measurement and device-characterisation experience
- Degree, master’s or PhD in Electronic, RF or Microwave Engineering, or equivalent industry experience
Experience with millimetre-wave products above 37GHz, WIN Semiconductor processes or technical mentoring would be advantageous.
Benefits include 25 days’ holiday plus public holidays, up to 8% employer pension contribution, life assurance, income protection, share and EV schemes, and ongoing professional development.
Education
Skills
About Octagon Group
Octagon Group – Shaping the Future of Tech & Engineering... one person at a time. Octagon Group is a specialist recruitment partner for companies at the forefront of R&D, innovation, and advanced engineering. We work with pioneering organisations developing next-generation electronics, embedded systems, and complex technology solutions across industries such as aerospace, medical devices, telecommunications, automotive, and industrial tech. We connect technical teams with the brightest minds in engineering - from electronics and software to manufacturing and leadership. Whether you’re scaling up a new product, building a critical team, or growing at pace, we deliver recruitment solutions that are precise, flexible, and aligned to your goals. We offer permanent and contract recruitment, executive search, headhunt campaigns, and embedded RPO models. If you're designing, developing, or engineering the future—we want to be part of that journey. For more information, and to discuss Octagon Groups recruitment solutions, please contact us on +44 (0) 1525 306225 or email info@octagonGroup.co.uk . Visit http://www.OctagonGroup.co.uk to find out more.