Principal Emulation Engineer

Posted Yesterday
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San Jose, CA, USA
In-Office
207K-230K Annually
Expert/Leader
Big Data • Information Technology
The Role
Architects and maintains ASIC and SoC emulation environments for pre-silicon validation. Integrates RTL, transactors, protocol models, software, and test infrastructure for hardware-software co-simulation. Verifies PCIe, Ethernet, memory, storage, and other interfaces; develops reusable models, tests, checkers, and debug methods; analyzes coverage and performance; and leads cross-functional debugging across design, verification, firmware, and systems teams.
Summary Generated by Built In

Astera Labs (NASDAQ: ALAB) provides rack-scale AI infrastructure through purpose-built connectivity solutions. By collaborating with hyperscalers and ecosystem partners, Astera Labs enables organizations to unlock the full potential of modern AI. Astera Labs’ Intelligent Connectivity Platform integrates CXL®, Ethernet, NVLink, PCIe®, and UALink™ semiconductor-based technologies with the company’s COSMOS software suite to unify diverse components into cohesive, flexible systems that deliver end-to-end scale-up, and scale-out connectivity. The company’s custom connectivity solutions business complements its standards-based portfolio, enabling customers to deploy tailored architectures to meet their unique infrastructure requirements. Discover more at www.asteralabs.com.

Principal Emulation Engineer — San Jose, CA 

Role Overview 

As a Principal Emulation Engineer, you will build and operate emulation environments that let verification teams stress-test complex ASICs before silicon. You’ll partner closely with design, verification, firmware, and systems engineers to model hardware-software interactions, exercise high-speed protocols, and isolate issues across RTL, transactors, test environments, and code. Your hands-on leadership will turn difficult debug problems into actionable fixes and improve confidence in each product milestone. 

Astera Labs is accelerating the infrastructure behind AI by delivering purpose-built connectivity solutions for rack-scale systems. In this role, you’ll help validate the switching, PCIe, Ethernet, memory, and storage interfaces that connect the compute fabric—enabling faster bring-up, stronger interoperability, and more reliable platforms as the company scales. 

Key Responsibilities 

  • Emulation and Prototyping 
  • Architect, build, and maintain emulation environments for complex ASICs and SoCs. 
  • Integrate RTL, transactors, protocol models, software, and test infrastructure to enable meaningful hardware-software co-simulation. 
  • Enable verification teams to stress-test designs with scalable, repeatable emulation workflows. 
  • Develop reusable models, utilities, and debug methodologies that accelerate pre-silicon validation. 
  • Protocol and SoC Verification 
  • Verify hardware-software interfaces and system behaviors in partnership with logic designers, firmware engineers, and verification teams. 
  • Exercise and debug PCI Express Gen 3 and above, Ethernet, DDR, NVMe, SPI, I2C/I3C, and similar interfaces. 
  • Analyze protocol behavior, functional coverage, performance, and corner cases across complex server, storage, and networking systems. 
  • Translate system requirements into practical emulation scenarios, tests, checkers, and measurable verification goals. 
  • Debug and Technical Leadership 
  • Debug design, environment, transactor, software, and test-code issues across the emulation stack. 
  • Identify software and hardware co-simulation limitations and apply effective isolation and debug techniques. 
  • Partner with cross-functional teams to prioritize a dynamic workload, resolve issues quickly, and drive risks to closure. 
  • Provide technical leadership, communicate clearly, and operate effectively with minimal guidance and supervision. 

Basic Qualifications 

  • Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field. 
  • 8–12 years of experience supporting or developing complex SoC or silicon products for server, storage, or networking applications. 
  • Experience working with logic designers to architect, specify, and verify hardware-software interfaces on complex SoCs. 
  • Working knowledge of PCI Express Gen 3 or later, CXL, UALink, Ethernet, DDR, NVMe, SPI, I2C/I3C, or similar communication protocols. 
  • High proficiency in SystemVerilog and hardware verification environments. 
  • Experience understanding software and hardware co-simulation limitations and applying effective debug methods. 
  • Programming and scripting experience in Python, Perl, C, or similar languages. 
  • Professional, entrepreneurial, and open-minded approach with a can-do attitude, strong prioritization skills, and a customer-focused mindset. 
  • Authorized to work in the United States and available to start immediately. 

Preferred Qualifications 

  • Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field. 
  • Hands-on experience with Palladium, Zebu, Veloce, HAPS, FPGA prototyping, or similar emulation and prototyping technologies. 
  • Experience developing models for emulation and prototyping and working in non-UVM verification environments. 
  • Experience building protocol transactors, behavioral models, software drivers, or system-level validation infrastructure. 
  • Based in the San Jose area or open to relocation; comfortable working fully in person. 

Salary range is $207,000 to $230,000 depending on experience, level, and business need. This role may be eligible for discretionary bonusincentives and benefits. 


We know that creativity and innovation happen more often when teams include diverse ideas, backgrounds, and experiences, and we actively encourage everyone with relevant experience to apply, including people of color, LGBTQ+ and non-binary people, veterans, parents, and individuals with disabilities.

Skills Required

  • Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field
  • 8-12 years of experience supporting or developing complex SoC or silicon products for server, storage, or networking applications
  • Experience architecting, specifying, and verifying hardware-software interfaces on complex SoCs with logic designers
  • Working knowledge of PCI Express Gen 3 or later, CXL, UALink, Ethernet, DDR, NVMe, SPI, I2C/I3C, or similar communication protocols
  • High proficiency in SystemVerilog and hardware verification environments
  • Experience understanding software and hardware co-simulation limitations and applying effective debugging methods
  • Programming and scripting experience in Python, Perl, C, or similar languages
  • Professional, entrepreneurial, open-minded, customer-focused approach with strong prioritization skills
  • Authorized to work in the United States and available to start immediately
  • Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field
  • Hands-on experience with Palladium, Zebu, Veloce, HAPS, FPGA prototyping, or similar emulation and prototyping technologies
  • Experience developing models for emulation and prototyping in non-UVM verification environments
  • Experience building protocol transactors, behavioral models, software drivers, or system-level validation infrastructure
  • Based in the San Jose area or open to relocation and comfortable working fully in person

Astera Labs Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Astera Labs and has not been reviewed or approved by Astera Labs.

  • Healthcare Strength Health plans are described as competitive and employer-subsidized, covering medical, dental, and vision for employees and dependents. Company materials and listings consistently emphasize strong core healthcare coverage.
  • Leave & Time Off Breadth Flexible time off is highlighted alongside paid company holidays, with guidance indicating generous PTO when coordinated with teams. Documented policies also point to robust time-off structures across locations.
  • Equity Value & Accessibility Stock-based compensation is a meaningful part of total pay, with RSUs and an employee stock purchase plan noted as part of the package. Public-company status enhances perceived value and accessibility of equity components.

Astera Labs Insights

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The Company
HQ: San Jose, CA
148 Employees
Year Founded: 2017

What We Do

Astera Labs Inc., a fabless semiconductor company headquartered in the heart of California’s Silicon Valley, is a leader in purpose-built connectivity solutions for data-centric systems throughout the data center. Partnering with leading processor vendors, cloud service providers, seasoned investors, and world-class manufacturing companies, Astera Labs is helping customers remove performance bottlenecks in data-intensive systems that are limiting the true potential of applications such as artificial intelligence and machine learning. The company’s product portfolio includes system-aware semiconductor integrated circuits, boards, and services to enable robust CXL, PCIe, and Ethernet connectivity.

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