Senior Staff Mixed-Signal/Analog IC Design Engineer

Company Description

Custom Silicon Solutions (CSS) is a fabless semiconductor company specializing in high-performance, low-power analog and mixed-signal ASIC solutions. We partner with customers in medical, industrial, aerospace, and high-reliability markets to deliver custom silicon that enables differentiated, high-value products.

At CSS, engineers work across the full ASIC lifecycle — from architecture and transistor-level design to silicon validation and production release. If you are motivated by solving complex signal-chain challenges and seeing your designs in production, CSS is a place to grow, lead, and make measurable impact.

Immediate Impact

As a Senior Mixed-Signal / Analog IC Design Engineer, you will be a key contributor within our core ASIC design team at our Irvine headquarters. You will work on custom projects that demand precision, robustness, and low-power performance.

You will collaborate closely with system architects, layout engineers, digital designers, and test engineers to deliver production-ready silicon. Your designs will directly impact customer products in demanding, real-world applications.

What You Can Expect

• Design and verify high-performance analog and mixed-signal circuits at block and system level
• Architect, simulate, and implement analog building blocks including amplifiers, references, oscillators, regulators, ADCs, DACs, and low-noise signal-conditioning front ends
• Perform comprehensive transistor-level simulations (DC, AC, transient, noise, corner, Monte Carlo)
• Conduct behavioral modeling and system-level analysis where appropriate
• Provide layout guidance and review physical implementation for performance and robustness
• Perform lab characterization, silicon bring-up, and debug
• Support production release through collaboration with test engineering to define and enable ATE production test development
• Participate in design reviews and document design methodology and performance results

What We're Looking For

• Bachelor’s degree in Electrical Engineering (required)
• Master’s degree preferred
• 5 years of relevant industry experience in analog and/or mixed-signal IC design
• Strong fundamentals in CMOS analog design and device physics
• Experience with analog and mixed-signal IP such as ADCs, DACs, amplifiers, references, regulators, oscillators, or PLLs
• Background with high-voltage circuit design techniques preferred
• Proficiency with Cadence design environment (schematic capture, simulation, layout review, verification/extraction)
• Experience with silicon validation and lab characterization
• Ability to optimize circuits for noise, linearity, power, area, and performance
• Strong communication skills and ability to work in a collaborative team environment
• Familiarity with production test methodologies and mixed-signal DFT concepts

Compensation and Benefits

The annual base salary range for this position is $125,000 - $175,000. CSS offers a competitive total rewards package including:

• Medical, Dental, and Vision plans
• 401(k) plan
• Paid holidays
• Paid sick leave
• Vacation time

Compensation will be commensurate with experience, skills, and market conditions.

Work Location

Irvine, CA (CSS Headquarters)

Equal Opportunity Statement

Custom Silicon Solutions is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, or any other legally protected characteristic.

Employment may be contingent upon proof of legal authorization to work in the United States and compliance with applicable export control regulations.

If you are passionate about analog and mixed-signal design and want to work on meaningful, production-bound ASICs in a collaborative, technically strong environment, we encourage you to apply.