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Senior Fiber Assembly Process Engineer

PsiQuantum


Job Location:

Milpitas, CA - USA

Monthly Salary: $ 150800 - 177200
Posted: 18 June 2026 (30+ days ago)
Application Deadline: 29 October 2026
Vacancies: 1 Vacancy

Job Summary

PsiQuantumsmission is to build the first useful quantum computersmachines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016 our singular focus has been to build and deploy million-qubit fault-tolerant quantum systems.

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy pharmaceuticals finance agriculture transportation materials and other foundational industries.

Our architecture and approachisbased on silicon photonics. Byleveragingthe advanced semiconductor manufacturing industryincluding partners like GlobalFoundrieswe use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photonsdontfeel heat are immune to electromagnetic interference and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.

In 2024PsiQuantumannounced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane Australia and Chicago Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically definingand that now is the time to scale.

PsiQuantumalso develops the algorithms and software needed to make these systems commercially valuable. Our application software and industry teams work directly with leading Fortune 500 companiesincluding Lockheed Martin Mercedes-Benz Boehringer Ingelheim and Mitsubishi Chemicalto prepare quantum solutions for real-world impact.

Quantum computing is not an extension of classical computing. Itrepresentsa fundamental shiftand a path to mastering challenges that cannot besolvedany other way. The potential is enormous and we have a clearpathto make it real.

Come join us.

Job Summary:

The Senior Fiber Assembly Process Engineer will be responsible for the development of advanced assembly instrumentation for high-performance and high throughput fiber splicing and study and address fiber and splice reliability at the scale of datacenters. This role combines fiber engineering opto-mechanical automation optical assembly manufacturing and semiconductor process development.

Responsibilities:

  • Study and root-cause sources of fiber splice loss and loss variability.
  • Develop and deploy advanced fiber processing equipment working with industrial partners.
  • Develop advanced measurement methodologies for validating fiber and fiber splice losses at datacenter scale.
  • Use optical simulation tools to model behavior & performance fiber-fiber interfaces for a wide range of advanced fiber designs.
  • Assess modal properties loss mechanisms dispersion coupling and other key fiber characteristics relevant to demanding optical applications through optical modeling and experimental validation model closure.
  • Work with the optical packaging and assembly validation teams to develop and deliver test methods for the performance and reliability of fiber interfaces.

Experience/Qualifications:

  • MSc or PhD in photonics optics physics engineering or a related field or equivalent industry experience.
  • 5 years of experience in fiber optics optical system development and assembly.
  • Strong understanding of optical fibers and fiber splicing & measurement equipment.
  • Familiar with key opto-mechanical packaging and assembly equipment.
  • Proficiency in Python and JMP.
  • Experience with mechanical and/or optical instrumentation automation and control.
  • Familiarity with back-end semiconductor packaging is a plus.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race color religion sex (including pregnancy childbirth or related medical conditions) gender identity gender expression national origin ancestry citizenship age physical or mental disability military or veteran status marital status domestic partner status sexual orientation genetic information or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to .

We are not accepting unsolicited resumes from employment agencies.

Base pay is one part of the total compensation package. Full-time roles are eligible for equity and compensation ranges reflect the cost of labor across multiple U.S. geographicmarkets and we pay based on defined geographic zones. This position may be filled withinone of thefollowingU.S.geographic zones each with its own salary range.

Actual compensation may vary outside of these ranges and is dependent onvarious factorsincluding but not limited to a candidates qualifications relevant education and training competencies experience geographic location business needs and internal equity. Your recruiter can share more details about the salary range applicable to your location during the hiring process.

  • Zone 1- Bay Area and NYC
  • Zone 2-Examples include LosAngelesandWashington DC
  • Zone 3-Examples include Austin Chicagoand Sacramento
  • Zone 4-Examples include Nashville and Phoenix/Tempe and manyremote locations

This position includes the following benefits: competitive health coverage for you and your dependents 401(k) with company match equity grants access to financial wellness tools and planning resources wellness benefits family support programs life and disability insurance paid leave programs company-designated paid holidays discretionary time off (DTO) and an end-of-year company shutdown. Some of these benefits have eligibility requirements and may vary based on location role or employment status. Many of these benefits are subsidized or fully paid for by the company.

The estimated annual base salary rangefor this role is:

Zone 1

$150800 - $177200 USD

Zone 2

$135700 - $159500 USD

Zone 3

$120700 - $141800 USD

Zone 4

$105500 - $124000 USD


Required Experience:

Senior IC