Principal Engineer - Validation Engineering

Astera Labs
San Jose, CA
On-site

Who this role is best for

Aimed at mid-to-senior level validation engineers with hands-on technical leadership experience in high-speed connectivity and AI infrastructure, who thrive in collaborative, cross-functional environments in San Jose, California.

Best fit for

  • Candidates with 8-12 years of validation experience in semiconductor or data center products
    — “8-12 years of experience in hardware, silicon, system, or product validation engineering”
  • Individuals who have led validation strategies for complex hardware systems
    — “Define validation methodologies, coverage goals, schedules, dependencies, and exit criteria for complex hardware and connectivity products”
  • Engineers with strong Python and Linux skills for automation and data analysis
    — “Develop, review, and maintain Python-based automation and data analysis tools in Linux-based validation environments”

Things to consider

  • The role demands a high level of cross-functional collaboration and technical influence
    — “This role combines deep hands-on technical leadership with broad cross-functional influence”
  • Candidates must be prepared to work in a high-growth, fast-paced environment
    — “Mentoring engineers in a fast-paced, high-growth environment”

How to stand out

  • Highlight experience with high-speed interfaces like PCIe, CXL, or Ethernet in your resume
    — “Experience validating high-speed connectivity interfaces such as PCIe, CXL, Ethernet, or comparable technologies”
  • Emphasize your ability to define and execute validation strategies from requirements to release
    — “Translate product requirements and architecture specifications into comprehensive validation plans”
  • Showcase your track record of resolving cross-domain issues in hardware, firmware, and software
    — “Drive root-cause analysis of functional, performance, interoperability, reliability, and system-level issues across hardware, firmware, and software boundaries”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • define and lead validation strategies
  • translate product requirements into validation plans
  • drive root-cause analysis
  • mentor engineers
Typical background
hardware validationsemiconductor validationnetworking validation

Skills & requirements

Required

Validation EngineeringHardware ValidationAutomation TestingPython Scripting

Preferred

CXLEthernetNvlinkPcieUalink

Stack & domain

PythonValidation EngineeringSemiconductorNetworkingData Center ProductsLeadershipCommunicationTeamworkNullHardwareSiliconSystemProduct Validation

About the role

Original posting from Astera Labs via Greenhouse

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.

Role Overview

As a Principal Engineer in Hardware Engineering's Validation Engineering organization, you will define and lead validation strategies for Astera Labs' next-generation connectivity products. You will turn complex silicon, board, and system requirements into rigorous plans, scalable automation, and clear release decisions—ensuring products perform reliably in the demanding environments of modern AI infrastructure.

This role combines deep hands-on technical leadership with broad cross-functional influence. You will partner with design, firmware, software, product, applications, and customer teams to bring up platforms, isolate issues, and accelerate qualification. Your work will directly support Astera Labs' hyper-growth mission to enable purpose-built, rack-scale AI connectivity and help customers deploy high-performance systems with confidence.

Key Responsibilities

Validation Strategy and Planning

Define validation methodologies, coverage goals, schedules, dependencies, and exit criteria for complex hardware and connectivity products.

Translate product requirements and architecture specifications into comprehensive validation plans, test cases, and measurable quality objectives.

Identify technical risks early, prioritize validation investments, and communicate readiness, gaps, and tradeoffs to cross-functional stakeholders.

Lab, Automation, and Execution

Lead silicon, board, and system bring-up, including test environment definition, instrumentation selection, configuration, and execution.

Architect scalable lab infrastructure and automated test frameworks that improve coverage, repeatability, debug efficiency, and time to qualification.

Develop, review, and maintain Python-based automation and data analysis tools in Linux-based validation environments.

Debug, Qualification, and Technical Leadership

Drive root-cause analysis of functional, performance, interoperability, reliability, and system-level issues across hardware, firmware, and software boundaries.

Partner with design, firmware, software, product, applications, and customer teams to resolve issues and deliver high-quality releases.

Mentor engineers, establish validation best practices, and represent validation status and technical recommendations in design and launch reviews.

Basic Qualifications

Bachelor's degree in Electrical Engineering, Computer Engineering, or a related technical field.

8-12 years of experience in hardware, silicon, system, or product validation engineering.

Proven experience leading validation for semiconductor, networking, connectivity, or data center products.

Hands-on experience creating validation plans, test cases, automation, coverage metrics, and release criteria.

Strong debugging skills across hardware, firmware, software, and laboratory instrumentation.

Excellent written and verbal communication skills, with the ability to influence technical decisions across functions.

Preferred Qualifications

Master's or PhD degree in Electrical Engineering, Computer Engineering, or a related field.

Experience validating high-speed connectivity interfaces such as PCIe, CXL, Ethernet, or comparable technologies.

Understanding of physical-layer fundamentals, signal integrity, protocol analysis, compliance, and interoperability testing.

Proficiency with Python, Linux, laboratory equipment, data analysis, and Microsoft Azure DevOps or comparable validation infrastructure.

Experience scaling validation labs, working with hyperscalers or ODMs, and mentoring engineers in a fast-paced, high-growth environment.

Salary range is $185,000 to $240,000 depending on experience, level, and business need. This role may be eligible for discretionary bonus, incentives 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.

Source: Astera Labs careers (Greenhouse)

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