Principal High Speed Mixed Signal IC Design Engineer

About the client

An innovative semiconductor company developing advanced integrated circuits for next-generation communication and connectivity applications. They combine high-performance analog, mixed-signal and digital technologies to deliver highly integrated semiconductor solutions for demanding applications. As an engineering-led company, we offer experienced engineers the opportunity to shape architectures, own critical technology developments, and see their work progress from concept through silicon.

The Opportunity

Seeking a Principal High-Speed Mixed-Signal IC Design Engineer to lead the development of advanced integrated circuits involving:

• High-speed data conversion
• Clocking
• Analog and mixed-signal technologies

This is a senior technical role for an engineer with strong expertise in high-performance IC design who can operate across:

Architecture -> Circuit Design -> Silicon Validation

The successful candidate will:

• Take ownership of key technology developments
• Define architectures
• Design critical circuit blocks
• Drive products from concept through silicon validation and into production

This role offers the opportunity to work in a fast-moving, engineering-led start-up where technical leadership, innovation and ownership have a direct impact on the company's success.

Key Responsibilities

• Lead the architecture and design of advanced high-speed mixed-signal ICs.
• Develop and optimise critical analog and mixed-signal building blocks, including:
• High-speed data converters
• Clock generation and PLLs
• Timing circuits
• High-speed interfaces
• Analog/RF signal paths

Analyse and optimise designs for:

Noise

Linearity

Power

Timing performance

Signal integrity

Perform transistor-level simulation, verification and optimisation across PVT conditions.

Work closely with layout, digital and system engineers to achieve robust silicon implementation.

Support silicon bring-up, laboratory characterisation and performance optimisation.

Provide technical leadership within a small, highly experienced engineering team.

Required Experience

• Several years in analog, mixed-signal or high-speed IC design.
• Proven experience delivering complex ICs from architecture definition through silicon validation.
• Strong background in one or more of the following:
• High-speed data converters (ADC/DAC)
• Clock generation and PLLs
• Timing circuits
• High-speed interfaces/SerDes
• Analog/RF signal paths

Strong understanding of:

Clock jitter

Phase noise

Noise performance

Mixed-signal design trade-offs

Experience with Cadence Virtuoso, Spectre or equivalent IC design environments .

Experience with EM co-simulation and layout-aware design for high-speed circuits .

Experience with advanced CMOS technologies and silicon debug .

Ability to independently drive complex technical challenges and make architecture-level decisions .

Desirable Experience

• Low-phase-noise oscillators, PLLs and precision timing circuits.
• Calibration and digital correction techniques.
• Experience working in a start-up or small engineering team.

What We're Looking For

We are looking for an exceptional engineer who combines:

• Deep technical expertise
• System-level understanding

You should be comfortable moving between:

Architecture and Circuit Implementation

and solving complex mixed-signal challenges while taking ownership of critical semiconductor developments.

You will thrive in a collaborative start-up environment where engineers are encouraged to:

• Think broadly
• Take complete ownership of their work
• Deliver products from concept through production

This is an opportunity to make a significant technical impact within a growing semiconductor company.

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