Tbwa Chiat/Day Inc
Senior Staff, SI/PI Engineer Santa Clara, CA
Tbwa Chiat/Day Inc, Santa Clara, California, us, 95053
As the industry strives to meet the demands of the AI workloads, bottlenecks in data transfers between processors and memory have hindered progress. The Photonic Fabric based Memory Fabric provides an optically scalable solution to the ‘Memory Wall’ problem, enabling tens of Terabytes of memory capacity at full HBM bandwidths with low tens of nanoseconds of latency and extremely low power. The Photonic Fabric based Compute Fabric enables Terabyte class bandwidth between compute nodes at low latency and power. Photonic Fabric delivers a transformative leap in AI system performance, ten years more advanced than existing technologies.Job Description:Celestial AI is seeking an SI/PI Engineer to help develop and validate Celestial’s world-class energy efficient AI compute and photonic data transmission solutions. Self-starter who is passionate about innovation and comfortable working on the cutting edge of VLSI / RF / Optical Networking technology. The ideal candidate will be comfortable solving the technical challenges of 2.5d die / package / PCB performance optimization and develop a design -> simulate -> correlate development process for package and PCB level interconnect and power delivery. Has a strong sense of ownership, loves turning ambiguity into real outcomes and working across all engineering and product functions to deliver required solutions in a timely manner.In this role, you will work closely with engineers responsible for analog I/O design, die physical design, photonics, packaging, PCB, and validation. You will be responsible for performing simulations and design studies and reviewing PCB, Package, and silicon layouts to ensure Celestial AI test articles and end products meet appropriate SI/PI targets while taking into account cost-effectiveness, time to market, supply chain risk, and performance tradeoffs. Additional responsibilities include resolving SI/PI issues encountered on the path to high volume manufacturing during the NPI phase and developing technology roadmaps to support the overall company product roadmap. This job will require you to have strong project management, written and verbal communication skills as well as a can-do attitude to prioritize and address issues with a very high sense of urgency.ESSENTIAL DUTIES AND RESPONSIBILITIES:Use electromagnetic simulation software such as Ansys HFSS / SiWave or Cadence Sigrity Suite to perform pre and post layout simulationsUse layout software such as Cadence Allegro/APD viewers, Virtuoso, Klayout, etc. to review designs and modify designs for simulationUse Real Time Oscilloscopes, Sampling Oscilloscopes, TDR, and VNA to verify performance, correlate models to simulation, and debug issuesDevelop strong technical relationships within the company and externally with customers and vendors as a single point of contact for SI/PI design and manufacturing problemsCollaborate with industry peers and suppliers to stay abreast of industry advances and future roadmapsResolve daily technical issues with cross-functional engineering teams in a timely manner and drive for Celestial AI’s successActively manage SI/PI qualification of test articles and products, while operating within established cost and time constraintsQUALIFICATIONS:Master’s degree or higher in Electrical Engineering or RF is preferred but not required5+ years of experience in signal/power integrityExpertise with time and frequency domain simulation and measurementPrior experience with high speed serdes and power delivery modelling/optimizationExperience with Photonics is a plusAbility to deliver effective results in collaborative cross-functional teams in a fast paced startup environmentLocation
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Bay Area location is required.As an early startup experiencing explosive growth, we offer an extremely attractive total compensation package, inclusive of competitive base salary and a generous grant of our valuable early-stage equity. The target base salary for this role is approximately $160,000.00 - $185,000.00. The ba se salary offered may be slightly higher or lower than the target base salary, based on the final scope as determined by the depth of the experience and skills demonstrated by candidate in the interviews.We offer great benefits (health, vision, dental and life insurance), collaborative and continuous learning work environment, where you will get a chance to work with smart and dedicated people engaged in developing the next generation architecture for high performance computing.Celestial AI Inc. is proud to be an equal opportunity workplace and is an affirmative action employer.Accepted file types: pdf, doc, docx, txt, rtfAccepted file types: pdf, doc, docx, txt, rtfLinkedIn Profile *WebsiteEducationSchool *
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For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.As set forth in Celestial AI’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.Select...Voluntary Self-Identification of Disability
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Bay Area location is required.As an early startup experiencing explosive growth, we offer an extremely attractive total compensation package, inclusive of competitive base salary and a generous grant of our valuable early-stage equity. The target base salary for this role is approximately $160,000.00 - $185,000.00. The ba se salary offered may be slightly higher or lower than the target base salary, based on the final scope as determined by the depth of the experience and skills demonstrated by candidate in the interviews.We offer great benefits (health, vision, dental and life insurance), collaborative and continuous learning work environment, where you will get a chance to work with smart and dedicated people engaged in developing the next generation architecture for high performance computing.Celestial AI Inc. is proud to be an equal opportunity workplace and is an affirmative action employer.Accepted file types: pdf, doc, docx, txt, rtfAccepted file types: pdf, doc, docx, txt, rtfLinkedIn Profile *WebsiteEducationSchool *
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Select...Select...Select...Start date yearEnd date month
Select...End date yearVoluntary Self-Identification
For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.As set forth in Celestial AI’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.Select...Voluntary Self-Identification of Disability
Form CC-305Page 1 of 1OMB Control Number 1250-0005Expires 04/30/2026Voluntary Self-Identification of Disability
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OMB Control Number 1250-0005
Expires 04/30/2026Why are you being asked to complete this form?
We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp .How do you know if you have a disability?
A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability.
Disabilities include, but are not limited to:Alcohol or other substance use disorder (not currently using drugs illegally)Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDSBlind or low visionCancer (past or present)Cardiovascular or heart diseaseCeliac diseaseCerebral palsyDeaf or serious difficulty hearingDiabetesDisfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disordersEpilepsy or other seizure disorderGastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndromeIntellectual or developmental disabilityMental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSDMissing limbs or partially missing limbsMobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supportsNervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilitiesPartial or complete paralysis (any cause)Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysemaShort stature (dwarfism)Traumatic brain injury
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