Analog IC Design Engineer

onsemi is seeking an Analog IC Designer to join its Core Analog IP Development Centre of Excellence in Cork, Ireland. You will design and develop power, clock, monitoring and reset IP for the Treo platform in BCD65 technology, including bandgap references, LDOs, DC–DC regulators, oscillators and PLLs.

Your day-to-day work will focus on transistor-level circuit design, simulation across process, voltage and temperature conditions, layout collaboration and post-layout verification. You will support silicon characterisation and debugging, document design results, and work with product teams to ensure IP meets performance and integration requirements and can be reused across the platform. You will also mentor junior engineers and contribute to delivering designs through validation and into mass production.

- A bachelor’s degree in electrical or electronic engineering, or a closely related discipline, with at least 8 years of relevant analog IC design experience; or a master’s degree in a relevant discipline with at least 4 years of relevant analog IC design experience.

- Demonstrated hands-on design experience with bandgap references, LDOs, DC–DC regulators, oscillators and PLLs.

- A proven track record of taking several products through the full development lifecycle to mass production, including silicon evaluation, debugging and production support.

- Strong analog circuit fundamentals and practical expertise in transistor-level design, simulation, layout-dependent effects and post-layout verification.

- The ability to assess product requirements and translate them into robust, reusable analog IP designs.

- Experience engaging with product lines and translating competing product requirements into coherent IP specifications, development priorities and roadmaps.

- Demonstrated experience mentoring junior engineers and providing technical guidance through design reviews.

- Strong communication and presentation skills, with the ability to explain complex technical concepts, present trade-offs and build alignment across engineering teams and product stakeholders.

- A solid understanding of how AI can contribute to analog design and layout, including practical use cases, limitations and the need for independent engineering verification.

Desirable Experience

- Experience in BCD technologies, particularly BCD65, and analog IP development for mixed-signal platforms.