Principal Engineer, Digital Design; IO Subsystem

Principal Engineer, Digital Design (IO Subsystem) Job Description

We are seeking a Principal Digital Design Engineer based in Allen, TX, to own the IO subsystem for onsemi’s microcontroller platform. In this role, you will be responsible for defining, architecting, and delivering a highly configurable IO subsystem that supports a wide range of product requirements across multiple end markets.

This position plays a critical role in enabling platform scalability and product differentiation. The IO subsystem must be flexible, reusable, and optimized for performance, power, and area while supporting a wide range of product requirements.

The Principal Engineer will serve as the technical leader for the IO subsystem, driving architecture, RTL implementation, and design automation strategy, while partnering closely with system architecture, product lines, DFT, physical design, verification, and software teams. This role requires strong technical execution, cross‑functional leadership, and the ability to influence platform direction.

• Own the architecture and development of the IO subsystem, ensuring configurability and reuse across multiple products
• Define subsystem‑level specifications, interfaces, and integration strategy aligned with platform and product requirements
• Define and implement parameterized and Python generator‑based design approaches, enabling scalable and configurable subsystem instantiation
• Drive the creation of automatically generated test benches and verification environments, leveraging UVM frameworks and AI‑assisted techniques
• Develop high‑quality System Verilog RTL, ensuring compatibility with automated generation flows and maintainability at scale
• Support synthesis, STA, and timing closure activities to ensure signoff‑ready designs
• Collaborate with verification, DFT, and physical design teams to achieve first‑time right silicon
• Apply AI/ML techniques to improve design productivity, including code generation assistance, verification acceleration, and design space exploration
• Drive PPA optimization while maintaining configurability and reuse targets
• Establish best practices for design automation, code generation, and methodology standardization across the organization

Required

• Bachelor’s degree in Electrical Engineering or related field (Master’s preferred)
• 10+ years of experience in digital IC design with strong RTL development background
• Expert‑level proficiency in System Verilog RTL design
• Strong experience with Python for design automation and tool development
• Solid experience with UVM‑based verification methodologies and testbench development
• Strong understanding of UPF, synthesis, STA, and timing signoff flows
• Experience working with DFT concepts and integration
• Strong cross‑functional collaboration skills across design, verification, physical design, and product teams

Preferred

• Experience designing IO subsystems or peripheral architectures for microcontrollers or So Cs
• Experience with design generators, templated RTL, or hardware construction frameworks
• Exposure to AI/ML techniques applied to hardware design or verification workflows
• Experience building or deploying automated testbench generation and regression systems
• Familiarity with highly configurable or parameterized architectures
• Experience in automotive or safety‑critical designs

onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact  for assistance.

• Job Identification 2505665
• Job Category Engineering, Design
• Posting Date 06/19/2026, 01:11 AM
• Degree Level Bachelors
• Job Schedule Full time
• Job Shift Day