Full-Time

Senior Principal System Validation Engineer

AI Fabric Switches

Posted on 9/9/2025

Astera Labs

Astera Labs

501-1,000 employees

Semiconductor connectivity solutions for cloud AI

Compensation Overview

$237k - $250k/yr

San Jose, CA, USA

In Person

Category
QA & Testing (1)
Required Skills
Python
Linux/Unix
Data Analysis
Requirements
  • Strong academic and technical background in Electrical or Computer Engineering. At a minimum, a Bachelor’s is required, and a Master’s is preferred.
  • ≥12 years' experience supporting or developing complex System on Chip/Silicon products for Server, Storage, and/or Networking applications.
  • Basic understanding of x86/ARM architecture, UEFI/Linux boot sequence.
  • Good understanding of High Speed Signaling Principles.
  • Professional attitude with the ability to prioritize a dynamic list of multiple tasks, to plan and prepare for customer/internal meetings in advance, and to work with minimal guidance and supervision.
  • Entrepreneurial, open-mind behavior and can-do attitude. Think and act with the customer in mind!
  • Hands-on, thorough knowledge of high-speed protocols like PCIe, CXL, NVMe, or Ethernet.
  • Experience with Silicon/System bring-up, validation, and debug experience, including in customer systems.
  • A strong background in developing bench automation techniques, especially using Python, with emphasis on execution efficiency, repeatability, data analysis and reporting.
  • Experience with lab equipment including protocol analyzers, in-circuit debuggers, and CPU-based tool suites.
  • Ability to work on multiple projects.
Responsibilities
  • Develop and perform system validation tests using leading-edge Data Center equipment and scalable automation platforms.
  • Formulate a comprehensive validation plan for AI fabric switch products. automate the testing of ICs and board products in a data-centric manner, design experiments to root-cause unexpected behavior, report results and specification compliance in an automated fashion.
  • Understand the performance and functionality requirements our AI fabric Switches must deliver to enable customers developing Data Center systems using Astera Labs’ game-changing portfolio of connectivity products for Artificial Intelligence and Machine Learning applications.
  • Work with key customers directly to understand their care-abouts and highlight the unique capabilities and performance of Astera Labs’ solutions.
Desired Qualifications
  • Working knowledge of C or C++ for embedded FW and device drivers.
  • Familiarity with PCIe compliance standards and ability to follow and be involved in compliance consortiums to adapt the tests to be run from X86/ARM based platforms.
  • Knowledge of schematic capture and PCB layout tools from Cadence Allegro, Altium, etc.
  • Exceptional interpersonal and collaboration skills, with a proven track record of effectively leading, influencing, and navigating complex matrixed environments.

Astera Labs provides semiconductor-based connectivity solutions to boost cloud and AI infrastructure. Its products include PCIe, CXL, and Ethernet connectivity ICs and adapters that enable high-speed data transfer between processors, memory, and accelerators. These solutions help alleviate the memory wall by improving memory and I/O bandwidth, enabling faster communication within data centers supporting Generative AI workloads. The company differentiates itself by specializing in memory-centric, high-speed interconnects for cloud AI architectures and by targeting data centers and AI infrastructure customers with a portfolio of PCIe, CXL, and Ethernet products, rather than broad consumer-focused offerings. Astera Labs aims to expand its leadership in the global cloud AI market through continued development and deployment of its connectivity solutions, growing its market share and partnerships in data centers and AI workloads.

Company Size

501-1,000

Company Stage

IPO

Headquarters

Santa Clara, California

Founded

2017

Simplify Jobs

Simplify's Take

What believers are saying

  • Q1 2026 revenue hit $308 million, up 93% YoY, with PCIe 6 over one-third of sales.
  • Scorpio fabric switches ramp to largest revenue by 2026 end, targeting $1,000 per XPU.
  • XScale Photonics acquisition drives optical interconnect volumes in 2027.

What critics are saying

  • Nvidia NVSwitch 6 triples Scorpio X bandwidth, locking hyperscalers into NVLink by Q4 2026.
  • Broadcom Tomahawk 6 commoditizes switches, eroding Scorpio pricing from Q2 2027.
  • Nvidia NVLink Fusion sidelines PCIe switches for AMD/Intel GPUs by Q4 2026.

What makes Astera Labs unique

  • Astera Labs pioneers PCIe 6.0 Scorpio X switches with 5.12 TB/s bandwidth for rack-scale AI.
  • COSMOS software suite enables real-time telemetry across switches, cables, and optics.
  • Aries retimers and Taurus controllers solve memory wall in PCIe/CXL/Ethernet connectivity.

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Benefits

401(k) Retirement Plan

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-4%

1 year growth

-3%

2 year growth

0%
Yahoo Finance
Apr 6th, 2026
Astera Labs posts 92% revenue surge to $270.6M, powered by AI infrastructure demand

Astera Labs has raised $120 million in a Series C round, valuing the semiconductor connectivity solutions provider at $1.45 billion. Ribbit Capital led the investment, with participation from Sequoia, Kleiner Perkins, and new backer Emerson Collective. The company reported fourth-quarter revenue of $270.6 million, up 17% sequentially and 92% year-over-year. Full-year 2025 revenue reached $852.5 million, a 115% increase from 2024. Non-GAAP earnings per share of $0.58 exceeded consensus estimates by 35%. Astera Labs designs connectivity solutions for cloud and AI infrastructure, with strong demand for its Taurus PCIe/CXL products and Scorpio switchable fabric solutions. The company projects a $25 billion addressable market over five years. Its shares traded at $112.47 as of 27 March, with 52 hedge funds holding positions.

Yahoo Finance
Apr 6th, 2026
Insiders buy shares in AppLovin, Tesla, and Upstart amid 31% US market surge

Insiders are showing confidence in several high-growth US companies through significant ownership stakes. The American market has climbed 3.5% over the past week and 31% over the year, with earnings forecast to grow 16% annually. AppLovin Corporation, with a $130.31 billion market cap, has demonstrated strong performance with earnings rising 116.3% over the past year. Revenue is expected to grow 21% annually, outpacing the broader market. The company recently completed a $4.59 billion buyback programme, though it faces high debt levels and share price volatility. Tesla, valued at approximately $1.35 trillion, generates revenue primarily from automotive operations ($82.06 billion) and energy generation and storage ($12.77 billion), with revenue forecast to grow 16.4% annually. High insider ownership often signals management's confidence in future prospects.

Yahoo Finance
Mar 22nd, 2026
Small AI stocks Symbotic, Fastly, and Astera Labs poised to outperform Big Tech

Symbotic, Fastly and Astera Labs are positioned to capitalise on AI's growth despite receiving less attention than tech giants like Nvidia and Meta Platforms. Symbotic provides AI-powered warehouse automation and reported a 29% year-over-year revenue increase to $630 million in its fiscal first quarter. The company turned profitable with $13 million net income, reversing a $17 million loss from the previous year. It has a multi-year agreement with Walmart to deploy systems across all 42 distribution centres. Fastly delivers fast and secure online experiences, benefiting from increased AI bot traffic scouring the internet. The global AI-powered robotics market is forecast to expand from $7.5 billion in 2026 to $60.7 billion by 2034, providing a tailwind for these smaller AI companies.

Yahoo Finance
Mar 7th, 2026
Astera's $6.5B Amazon AI deal brings 200-basis-point margin hit alongside growth

Astera Labs reported strong fourth-quarter results and announced a $6.50 billion warrant agreement with Amazon to expand AI infrastructure partnerships. However, management disclosed an expected 200-basis-point gross margin headwind from module-heavy product mix and the Amazon warrant, reframing near-term profitability expectations. The Amazon deal strengthens Astera Labs' position in AI data centre connectivity, reinforcing demand for its Scorpio switches and COSMOS software as hyperscale deployments expand. Yet it also highlights customer concentration risks and margin pressure that investors must now factor into their valuations. The company's narrative projects $1.5 billion revenue and $393.5 million earnings by 2028, requiring 34.1% annual revenue growth. Cautious analysts note hyperscaler bargaining power could weigh more heavily on margins than consensus expects, particularly given Astera Labs' concentrated customer base.

Yahoo Finance
Feb 23rd, 2026
Astera Labs gains $22B market cap on AI data centre connectivity growth opportunity

Artisan Mid Cap Fund has initiated a position in Astera Labs, a fabless semiconductor company providing connectivity chips for data centres, according to its fourth-quarter 2025 investor letter. The fund took advantage of a recent share price pullback to establish what it calls a "Garden" position. Astera Labs manufactures chips that address data, network and memory bandwidth bottlenecks in data centres, helping modern GPUs and CPUs operate at full performance. The company also enables communication across different chip types, supporting the industry's shift towards heterogeneous computing. The fund believes Astera Labs has strong long-term growth prospects driven by continued cloud expansion and rising AI demand. As of 20 February 2026, Astera Labs shares traded at $129.68, with a market capitalisation of $22.073 billion.

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