Senior MMIC Engineer

JR United Kingdom; Sedgefield; Hybrid; GBP 50,000 - 80,000; Full time

Job summary

A leading technology company is seeking a Senior MMIC Engineer to join their team, specializing in high-frequency RF and mmWave solutions. This role focuses on advancing MMIC-based products with responsibilities in design, validation, and collaboration across engineering teams. Successful candidates will have a strong background in MMIC design, RF technology, and experience with advanced RF lab equipment.

Benefits

Flexible hybrid working options

Generous pension and life assurance schemes

Qualifications

• Relevant degree in engineering.
• Experience in MMIC/RFIC design within the semiconductor or RF industry.
• Solid understanding of semiconductor technologies.

Responsibilities

• Design and layout of MMICs including amplifiers and converters.
• Conduct simulations and hands-on testing to validate designs.
• Manage fab submissions and coordinate with foundries.

Skills

Design of MMICs

RFIC design

Hands-on experience with RF circuits

Strong measurement skills

Understanding of semiconductor technologies

Education

Engineering degree (MSc or PhD preferred)

Tools

RF lab equipment

Job description

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An exciting opportunity has arisen with one of our long-standing clients, a specialist in high-frequency RF and mmWave solutions for mission-critical communications and sensing applications. With decades of experience in designing cutting-edge components such as SSPAs, filters, and transceivers, they serve a wide range of industries including satellite, defence, and advanced telecoms.

We’re looking for a Senior MMIC Engineer to join their engineering group, collaborating closely with RF, electronics, and systems engineers to drive the design and development of advanced MMIC-based products. This is a key technical role focused on RFIC/MMIC design using GaAs, GaN, and InP technologies, supporting applications from 37GHz up to 115GHz and beyond.

Key Responsibilities:

• Design and layout of MMICs including LNAs, gain blocks, power amplifiers, up/down-converters, multipliers, and variable attenuators across multiple process technologies.
• Select appropriate MMIC processes based on application requirements and performance trade-offs.
• Conduct simulations and hands-on testing to validate designs, working with in-house labs and external semiconductor foundries.
• Prepare and review comprehensive design documentation, ensuring alignment with technical, quality, cost, and manufacturing goals.
• Collaborate with other engineering teams during design reviews to reduce risk and improve reliability.
• Perform thermal analysis and MTBF assessments.
• Manage fab submissions, coordinate with foundries, and support prototype and production testing.
• Identify and document novel IP arising from design work with potential for patent applications.

What We’re Looking For:

• A relevant engineering degree (MSc or PhD preferred).
• Experience in MMIC/RFIC design within the semiconductor or RF industry.
• Hands-on experience designing MMIC amplifiers, frequency converters, and related RF circuits using GaAs or GaN HEMT technologies.
• Strong measurement skills, including wafer probing and use of advanced RF lab equipment.
• A solid understanding of various semiconductor technologies and their impact on RFIC/MMIC performance.
• Familiarity with RF/microwave system-level design is advantageous.
• Previous engagement with external foundries and understanding of their workflows is beneficial.

Why Apply?

• Flexible hybrid working options.
• Generous pension and life assurance schemes.
• Opportunity to contribute to advanced mmWave products used globally.

If you’re an experienced Senior MMIC Engineer looking for a role where you can work on complex, high-frequency designs with a technically strong and supportive team, please reach out to Zac Taylor at IC Resources.