Principal Jobs at Astera Labs with Visa Sponsorship
Principal jobs at Astera Labs sit at the intersection of high-speed connectivity architecture and semiconductor systems innovation. Astera Labs has a clear track record of sponsoring international talent across multiple visa categories for senior technical contributors, making it a serious option if you're targeting Principal-level work in the Electronics and Hardware space.
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Get Access To All JobsINTRODUCTION
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.
ROLE AND RESPONSIBILITIES
As a Principal Package Signal & Power Integrity Engineer at Astera Labs, you will serve as a senior technical leader responsible for architecting, optimizing, and signing off package SIPI solutions for next-generation connectivity products. You will drive package electrical architecture across high-performance IC packaging platforms, including FCBGA, coreless substrates, chiplet-based packages, 2.5D/3D integration, silicon interposers, bridge-based interconnect, and heterogeneous multi-die systems. In this role, you will lead SIPI strategy and execution for products supporting PCIe, CXL, Ethernet, 200G/400G+ SerDes, and die-to-die interconnect. You will partner closely with silicon architecture, SerDes/IP teams, package design, PCB design, hardware validation, manufacturing, substrate vendors, and OSAT partners to optimize signal integrity, power delivery, substrate/interposer routing, bump planning, and system-level electrical performance while balancing cost, manufacturability, reliability, yield, and schedule. You will also drive SIPI methodology, modeling standards, simulation-to-measurement correlation, and chip–package–board co-design frameworks to enable scalable execution across multiple product lines.
Key Responsibilities
- Define package SIPI architecture and design strategy for high-performance connectivity products, including PCIe 5.0/6.0/7.0, CXL, Ethernet, 200G/400G+ SerDes, and die-to-die interconnect.
- Perform package and system-level SI and PI simulations using industry-standard simulation software such as HFSS, SIwave, and Keysight ADS to develop, optimize, and sign off package electrical models, validate package architecture and designs, and ensure robust signal and power integrity across chip–package–board systems.
- Lead cross-functional execution across silicon team, package design, marketing and APPs, PCB board team, validation team, package manufacturing, and external substrate/OSAT partners, managing technical tradeoffs among SIPI performance, cost, DFM, yield, etc., and deliver packaging solutions on schedule.
- Drive simulation-to-measurement correlation strategy, ensuring strong alignment between EM extraction, system-level models, and lab validation (VNA, TDR, high-speed oscilloscope), continuously improving model accuracy, simulation efficiency, and SIPI signoff criteria.
- Own SIPI simulation and signoff for advanced packaging platforms, including chiplet-based packages, 2.5D/3D integration, silicon interposers, and bridge-based interconnect, by leading simulations for D2D interconnect (e.g., UCIe), multi-die PDN, micro-bump modeling, TSV/interposer modeling, and multi-die CPM co-simulation.
- Define substrate, interposer, and bridge routing guidelines for high-speed SerDes and D2D interfaces, including impedance targets, differential-pair geometry, via/transition optimization, return-current management, shielding, skew control, and crosstalk isolation.
- Establish SIPI modeling standards, design rules, review checklists, automation flows, and signoff methodologies to improve execution efficiency, while mentoring engineers across the organization.
BASIC QUALIFICATIONS
- 10+ years of experience in signal integrity, power integrity, package electrical design, or chip–package–board co-design for high-performance semiconductor products.
- Deep expertise in package SIPI modeling, analysis, optimization, and signoff across the chip–package–board system, for high-speed SerDes, PCIe, CXL, Ethernet, etc.
- Strong experience with PCIe 5.0/6.0, PAM4 SerDes channel design, high-speed S-parameter extraction, package model development, eye-diagram analysis, return/insertion-loss optimization, and crosstalk analysis.
- Proven track record delivering high-performance packages using FCBGA, FCCSP, coreless substrates, advanced organic substrates, chiplet-based packages, 2.5D integration, silicon interposers, or heterogeneous integration platforms.
- Hands-on expertise with EM extraction and SIPI simulation tools such as ANSYS HFSS, SIwave, Q3D, 3D Layout, Keysight ADS, Cadence Sigrity, or equivalent tools.
- Expert-level knowledge of PDN design, including DC IR drop, AC impedance, target impedance, loop inductance, decoupling optimization, transient response, noise coupling, and chip-package-model methodology.
- Demonstrated ability to correlate simulation to lab measurement (VNA, TDR, high-speed oscilloscope).
- Strong understanding of tradeoffs between SIPI performance, cost, reliability, and manufacturability.
- Experience leading vendor engagements and managing technical execution through production ramps.
PREFERRED QUALIFICATIONS
- Experience influencing silicon floor planning, bump map definition, SerDes and power-grid planning, package escape strategy, and PCB breakout from a SIPI perspective.
- Experience with automation and scripting for SIPI modeling flow.
- Exposure to Allegro Package Designer (APD) for hands-on substrate editing.
- Knowledge on traditional FCBGA type package and advanced package (chiplet/2.5D/3D) manufacturing and assembly process flows.
- Experience with CPO and NPO optical package SIPI design, including high-speed channel modeling between EIC/PIC/optical engine, PDN design, crosstalk/noise analysis, and chip–package–board co-design for optical connectivity applications.
COMPENSATION
- The base salary range is $203,000 USD – $230,000 USD. Your base salary will be determined based on location, experience, and employees' pay in similar positions.
INTRODUCTION
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.
ROLE AND RESPONSIBILITIES
As a Principal Package Signal & Power Integrity Engineer at Astera Labs, you will serve as a senior technical leader responsible for architecting, optimizing, and signing off package SIPI solutions for next-generation connectivity products. You will drive package electrical architecture across high-performance IC packaging platforms, including FCBGA, coreless substrates, chiplet-based packages, 2.5D/3D integration, silicon interposers, bridge-based interconnect, and heterogeneous multi-die systems. In this role, you will lead SIPI strategy and execution for products supporting PCIe, CXL, Ethernet, 200G/400G+ SerDes, and die-to-die interconnect. You will partner closely with silicon architecture, SerDes/IP teams, package design, PCB design, hardware validation, manufacturing, substrate vendors, and OSAT partners to optimize signal integrity, power delivery, substrate/interposer routing, bump planning, and system-level electrical performance while balancing cost, manufacturability, reliability, yield, and schedule. You will also drive SIPI methodology, modeling standards, simulation-to-measurement correlation, and chip–package–board co-design frameworks to enable scalable execution across multiple product lines.
Key Responsibilities
- Define package SIPI architecture and design strategy for high-performance connectivity products, including PCIe 5.0/6.0/7.0, CXL, Ethernet, 200G/400G+ SerDes, and die-to-die interconnect.
- Perform package and system-level SI and PI simulations using industry-standard simulation software such as HFSS, SIwave, and Keysight ADS to develop, optimize, and sign off package electrical models, validate package architecture and designs, and ensure robust signal and power integrity across chip–package–board systems.
- Lead cross-functional execution across silicon team, package design, marketing and APPs, PCB board team, validation team, package manufacturing, and external substrate/OSAT partners, managing technical tradeoffs among SIPI performance, cost, DFM, yield, etc., and deliver packaging solutions on schedule.
- Drive simulation-to-measurement correlation strategy, ensuring strong alignment between EM extraction, system-level models, and lab validation (VNA, TDR, high-speed oscilloscope), continuously improving model accuracy, simulation efficiency, and SIPI signoff criteria.
- Own SIPI simulation and signoff for advanced packaging platforms, including chiplet-based packages, 2.5D/3D integration, silicon interposers, and bridge-based interconnect, by leading simulations for D2D interconnect (e.g., UCIe), multi-die PDN, micro-bump modeling, TSV/interposer modeling, and multi-die CPM co-simulation.
- Define substrate, interposer, and bridge routing guidelines for high-speed SerDes and D2D interfaces, including impedance targets, differential-pair geometry, via/transition optimization, return-current management, shielding, skew control, and crosstalk isolation.
- Establish SIPI modeling standards, design rules, review checklists, automation flows, and signoff methodologies to improve execution efficiency, while mentoring engineers across the organization.
BASIC QUALIFICATIONS
- 10+ years of experience in signal integrity, power integrity, package electrical design, or chip–package–board co-design for high-performance semiconductor products.
- Deep expertise in package SIPI modeling, analysis, optimization, and signoff across the chip–package–board system, for high-speed SerDes, PCIe, CXL, Ethernet, etc.
- Strong experience with PCIe 5.0/6.0, PAM4 SerDes channel design, high-speed S-parameter extraction, package model development, eye-diagram analysis, return/insertion-loss optimization, and crosstalk analysis.
- Proven track record delivering high-performance packages using FCBGA, FCCSP, coreless substrates, advanced organic substrates, chiplet-based packages, 2.5D integration, silicon interposers, or heterogeneous integration platforms.
- Hands-on expertise with EM extraction and SIPI simulation tools such as ANSYS HFSS, SIwave, Q3D, 3D Layout, Keysight ADS, Cadence Sigrity, or equivalent tools.
- Expert-level knowledge of PDN design, including DC IR drop, AC impedance, target impedance, loop inductance, decoupling optimization, transient response, noise coupling, and chip-package-model methodology.
- Demonstrated ability to correlate simulation to lab measurement (VNA, TDR, high-speed oscilloscope).
- Strong understanding of tradeoffs between SIPI performance, cost, reliability, and manufacturability.
- Experience leading vendor engagements and managing technical execution through production ramps.
PREFERRED QUALIFICATIONS
- Experience influencing silicon floor planning, bump map definition, SerDes and power-grid planning, package escape strategy, and PCB breakout from a SIPI perspective.
- Experience with automation and scripting for SIPI modeling flow.
- Exposure to Allegro Package Designer (APD) for hands-on substrate editing.
- Knowledge on traditional FCBGA type package and advanced package (chiplet/2.5D/3D) manufacturing and assembly process flows.
- Experience with CPO and NPO optical package SIPI design, including high-speed channel modeling between EIC/PIC/optical engine, PDN design, crosstalk/noise analysis, and chip–package–board co-design for optical connectivity applications.
COMPENSATION
- The base salary range is $203,000 USD – $230,000 USD. Your base salary will be determined based on location, experience, and employees' pay in similar positions.
See all 55+ Principal Jobs at Astera Labs
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Get Access To All JobsTips for Finding Principal Jobs at Astera Labs
Align your credentials to semiconductor systems depth
Principal roles at Astera Labs typically require deep expertise in PCIe, CXL, or high-speed SerDes architecture. Before applying, document your technical contributions at the system level, not just component work, so your resume reflects the scope they're hiring for.
Target Astera Labs through OFLC disclosure data
Search the DOL's OFLC public disclosure data to identify which job titles and work locations Astera Labs has certified for Labor Condition Applications. This tells you which Principal specializations they actively file for and which offices are sponsorship-active.
Confirm your visa category before your first interview
Astera Labs sponsors H-1B, TN, F-1 OPT, and employment-based Green Card pathways. Knowing which category fits your nationality and degree before the offer stage lets you answer sponsorship questions confidently and avoids delays once recruiting moves fast.
Use Migrate Mate to surface Principal openings directly
Filtering for Principal-level roles at sponsorship-active semiconductor companies by visa type saves significant time. Migrate Mate lets you browse verified sponsoring employers in Electronics and Hardware, so you're targeting positions where your immigration needs are already anticipated.
Negotiate timeline around LCA and I-129 filing windows
Once Astera Labs extends an offer, your start date depends on DOL certifying the Labor Condition Application before USCIS accepts the I-129. Build at least 60 days of runway into your proposed start date to absorb standard DOL processing and any USCIS requests for evidence.
Prepare for PERM early if a Green Card is your goal
Astera Labs sponsors EB-2 and EB-3 pathways, but PERM recruitment and DOL audit timelines can stretch well beyond a year. Raise your long-term immigration intentions with your hiring manager before signing, so the sponsorship commitment is documented from the start.
Frequently Asked Questions
Does Astera Labs sponsor H-1B visas for Principals?
Yes, Astera Labs sponsors H-1B visas for Principal-level roles. Because H-1B cap-subject petitions are subject to the annual lottery, timing matters. If you're already in H-1B status through another employer, a transfer petition avoids the lottery entirely. Cap-exempt pathways aren't available here, so plan around the April filing window if you're starting fresh.
How do I apply for Principal jobs at Astera Labs?
Applications go through Astera Labs' careers page, where Principal openings are listed by function, including hardware, firmware, and systems architecture. You can also find verified Principal roles at Astera Labs on Migrate Mate, which filters specifically for positions open to sponsored candidates. Tailoring your application to the specific connectivity technology in each job description significantly improves your chances of clearing the initial screen.
Which visa types does Astera Labs use for Principal roles?
Astera Labs works with H-1B transfers and new cap petitions, TN visas for Canadian and Mexican nationals in qualifying engineering specialties, F-1 OPT and STEM OPT extensions for recent graduates, and employment-based Green Card sponsorship through the EB-2 and EB-3 categories for longer-term hires. The right category depends on your nationality, degree field, and where you are in your immigration timeline.
What qualifications does Astera Labs expect for Principal roles?
Principal positions at Astera Labs generally require a bachelor's or master's degree in electrical engineering, computer engineering, or a closely related field, paired with substantial hands-on experience in areas like PCIe or CXL protocol design, analog mixed-signal systems, or high-speed interconnect architecture. For H-1B purposes, the degree must directly correspond to the specific technical specialty of the role, which Astera Labs documents carefully in its LCA filings.
How do I manage my visa status while waiting for an Astera Labs offer?
If you're on F-1 STEM OPT, you have up to 24 months of work authorization after your initial OPT period, giving Astera Labs time to file an H-1B on your behalf before your status expires. If you're in a 60-day grace period between jobs, you cannot begin work until a new petition is approved or a transfer receipt is issued. Confirm your I-94 expiration date with USCIS before accepting any offer.