Full-Time

Senior Principal Technologist

Software

Posted on 10/2/2025

Astera Labs

Astera Labs

501-1,000 employees

Semiconductor connectivity solutions for cloud AI

No salary listed

San Jose, CA, USA

In Person

Fully in-person in San Jose, CA. Some travel may be required.

Category
Sales & Solution Engineering (1)
Requirements
  • BS in Computer Science, or Electrical/Computer Engineering, MS or PhD preferred
  • ≥10 years' experience with software architecture developing datacenter software solutions for AI systems and switches
  • Experience working in a customer-facing role with the ability to articulate technical concepts, influence decision-making, and build business cases for new software products, features, or services
  • Ability to dig deeply into technical challenges and use cases
  • Software architect for full stack silicon-based solutions including firmware development, drivers, SDK, and application development
  • Experience with Linux kernel and driver development/debug
  • Experience with AI system software and management stacks including GPU drivers and collective libraries
  • Strong understanding of datacenter system and rack management solutions using industry standards from DMTF, OpenBMC, OCP (e.g. SAI), and the Linux Foundation
  • Strong understanding of “full stack” solutions from silicon to application integration
  • Excellent communication and interpersonal skills with the ability to collaborate effectively with internal teams and external partners
  • Demonstrated leadership capabilities with a track record of driving technical initiatives and delivering results in a fast-paced environment
  • Willingness to travel occasionally for customer meetings and industry events
Responsibilities
  • Drive the architecture and definition of future COSMOS software solutions and related products by leveraging expertise in software architecture, SOC architecture, PCIe/CXL/Ethernet/UALink technologies, system management, and AI hardware-software co-design
  • Directly engage with customers, influence product features and roadmap, and help drive innovation to better solve customer challenges in hyperscale data centers
  • Serve as a software architect for full stack silicon-based solutions including firmware development, drivers, SDK, and application development within COSMOS ecosystem
  • Contribute to system management capabilities and integration with AI hardware-software stacks
  • Collaborate with internal teams and external partners to shape product direction and ensure successful deployment in customer environments
  • Travel occasionally to meet with customers and represent the role at industry events
Desired Qualifications
  • Expertise in PCIe, CXL, UALink, and/or Ethernet management interfaces
  • Expertise in switch, fabric, and device management
  • Experience in product integration with BIOS, kernel, OS, tooling, and BMCs
  • Experience with benchmarking and performance optimization
  • Existing engagement and robust network within industry organizations such as PCI-SIG, OCP, DMTF, CXL, IEEE
  • Deep experience driving silicon definition based on customer requirements and managing product exploration internally

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

  • Taiwan lab expansion shortens verification and certification cycles for AI platform deployments.
  • Scorpio Fabric switches scaling to 320 lanes target rack-level AI interconnect bottlenecks.
  • NVLink Fusion and custom solutions deepen Astera’s role in heterogeneous AI infrastructure.

What critics are saying

  • Broadcom’s AI scale and bundled portfolio threaten Astera’s socket wins and pricing power.
  • Hyperscalers can internalize connectivity using UALink, NVLink Fusion, or custom silicon.
  • Taiwan concentration exposes qualification, manufacturing, and deployment to geopolitical disruption.

What makes Astera Labs unique

  • Astera sells purpose-built connectivity for rack-scale AI, not GPUs or accelerators.
  • Its Intelligent Connectivity Platform combines PCIe, CXL, Ethernet, NVLink Fusion, and UALink.
  • COSMOS software adds observability and optimization across silicon, modules, and systems.

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Your Connections

People at Astera Labs who can refer or advise you

Benefits

401(k) Retirement Plan

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

1%
Astera Labs
May 26th, 2026
AI Your Way. Purpose-built rack-scale connectivity.

AI Your Way. Purpose-built rack-scale connectivity. Paroma Sen, VP, Corporate Marketing This week I will complete 850 days at Astera Labs. It is significant because the same day I will fly out to be part of the A-team representing its beloved company at Computex in Taiwan. The past few weeks and months have been characterized by a flurry of activity with a massive product launch, various public facing events, growth manifested in expansion along every direction, from physical locations across countries to resourcing and infrastructure, tooling and process. And yes, the results in terms of revenue and market acceptance have been exciting beyond imagination. As Astera Labs, Inc. now stand on the cusp of scaling to the next frontier, I have the privilege of introducing to you its new positioning. But the word "positioning" doesn't quite do justice to the true meaning of what this stands for - an approach, a culture, a desire for excellence, a philosophy of what its company means to its customers, partners, employees, and the ecosystem at large. The words "AI Your Way" are directed at its customers and ecosystem. It evokes the idea of democratization of various paths and approaches in delivering AI to the world, and the commitment of Astera Labs to continue to partner with everyone, regardless of their choice of approach, to deliver the best outcomes possible in the mission to delivering AI at scale. The second part of the statement defines its approach to AI outcomes - solutions that are purpose-built and optimized for AI workloads. 'Rack-scale connectivity' speaks to its vision of delivering complete connectivity solutions for the whole rack. Now let's go through the 7-layer tiramisu diagram below, created to explain its approach. Starting at the bottom: 7) Astera Labs, Inc. offer connectivity solutions spanning both copper and optical media. Its retimer solutions are available in smart cable module options, allowing seamless connectivity between servers and between racks, without compromising signal integrity. Astera Labs, Inc. has also progressively showcased its optical technology, for reach extension from rack-to-rack, and across the data center. This roadmap continues to evolve - watch this space for more on this exciting area of development! 6) Astera Labs, Inc. support multiple interconnect protocols including PCIe(R), UALink(TM), CXL(R), Ethernet and NVLink(TM) Fusion, ensuring that its products support both standard and platform-specific protocols for a variety of customer design choices. 5) Its products span a whole host of solution areas, growing in complexity and scale. Beginning its journey with retimers, Astera Labs, Inc. has grown quickly to include gearboxes, memory controllers, and most recently a whole portfolio of fabric switches. Astera Labs, Inc. has also introduced a Custom Solutions portfolio - more to come on this! 4) Its solutions are presented with an end-to-end stack approach, which Astera Labs, Inc. call the Intelligent Connectivity Platform. This includes not just silicon, but also modules, systems at the server and rack level, and software and services to tie it all together and help customers accelerate their time-to-market. 3) Its COSMOS software suite doesn't just provide firmware that helps its silicon products run seamlessly, but it comes with APIs and tools that allow for unprecedented observability and platform-specific performance management of its solutions, and the systems they belong to. 2) Its solutions support all kinds of diverse workloads, including inference and training. Astera Labs, Inc. create purpose-built connectivity solutions which cater to both compute-intensive as well as memory-intensive AI workloads. 1) At the very top of the tiramisu stack, you will see what Astera Labs, Inc. consider as its ultimate deliverables to the world of AI. AI that is performant and efficient. AI that is secure and reliable. AI Your Way. Ultimately, regardless of your choice of accelerator, open standard-based vs custom architecture, choice of interconnect protocol, choice of physical media like optical or copper, and so on, Astera Labs is the partner of choice for your journey to delivering AI at scale. Its approach has been described as the "Switzerland of AI connectivity." Astera Labs, Inc. is not about betting on a one-horse race, swayed by the winds of hype-cycle performance. Its strategy was designed for robustness across time, and embracing the velocity of technology evolution, Astera Labs, Inc. is prepared for the future, working relentlessly to execute at scale. As my 850th day at this company rolls around, I can't wait to bring more of its amazing products to market. Astera Labs is here to stay and win the AI connectivity mission. AI Your Way. Come, partner with Astera Labs, Inc. - and land your opportunity to get on the tiramisu train!

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.

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