Jobs in the United States

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Added 10 mins ago
AE
Campus Graduate Masters Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $24.05 to $63 USD / hour
…enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the…
Added 10 mins ago
AE
Campus Graduate Masters Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $78,000 to $124,750 USD / year
- Full-time
…enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the…
Added 10 mins ago
AE
Campus Undergraduate Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $78,000 to $124,750 USD / year
- Full-time
…enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the…
Added 17 mins ago
Senior Scientific Software Engineer - Autoresearch
QuEra Computing, Inc.
Boston, MA
QuEra Computing is hiring a Senior Scientific Software Engineer to build systems that automate theoretical and computational research in quantum computing.
Added 20 mins ago
Senior Build Reliability Engineer, Hardware
Varda Space Industries
El Segundo, CA
The Senior Build Reliability Engineer partners closely with the design and manufacturing teams to right-size processes and controls to enable scaling the production of spacecraft hardware.…
Added 29 mins ago
Systems Engineer / Principal Systems Engineer (AHT)
Northrop Grumman
Manhattan Beach, CA
Northrop Grumman Defense Systems sector (NGDS) is seeking a Systems Engineer or Principal Systems Engineer to join our growing team of diverse professionals. The candidate will support…
Added 29 mins ago
Principal Systems Engineer (Top Secret Clearance)
Northrop Grumman
Manhattan Beach, CA
Northrop Grumman Defense Systems sector (NGDS) is seeking a Principal Systems Engineer to join our growing team of diverse professionals. The candidate will support Agile development of MS…
Added 30 mins ago
Staff Mechanical Engineer
Empirical Systems Aerospace, Inc.
San Luis Obispo, CA
The Staff Mechanical Engineer will play a key role in the design, development, and validation of mechanical components and systems for new aircraft programs. This position supports…
Added 30 mins ago
Software Engineer- Simulation Models
Cisco
Milpitas, CA
You will define, design, develop, test, debug, release, enhance, and maintain software that accelerates the development of Cisco IOS XR and SONiC. You will lead the implementation and…
Added 30 mins ago
Systems Design Engineer - Bioengineering
ThermoFisher Scientific
Pleasanton, CA
Support products from early feasibility through integration, verification and design transfer.
Added 30 mins ago
Staff Systems Design Engineer - Consumables / Microfluidics
ThermoFisher Scientific
Pleasanton, CA
We are seeking a Staff Engineer in Consumables & Microfluidics to lead the design and commercialization of next-generation consumables for molecular biology, genetic-analysis and…
Added 30 mins ago
Autonomy Engineer (Mid Career) - Millennium Space Systems
The Boeing Company
El Segundo, CA
As a Lead/Senior Autonomy Engineer you will be the Autonomy responsible engineering authority (REA) for a program, study, or proposal. You will develop and decompose fault & autonomy…
Added 30 mins ago
Autonomy Engineering Manager - Millennium Space Systems
The Boeing Company
El Segundo, CA
…safety are always maintained. They are key stakeholders in the design and validation of mission CONOPS and Design Reference Missions (DRM), and participate in comprehensive end-to-end…
Added 30 mins ago
Astrodynamics Engineer (Entry-Level) - Millennium Space Systems
The Boeing Company
El Segundo, CA
As an Astrodynamics Engineer, you will support execution of technical design, analysis, and operation for a given program, study, or proposal. You will run orbital analysis tools under the…
Added 30 mins ago
Spacecraft Thermal Engineer (Early Career) - Millennium Space Systems
The Boeing Company
El Segundo, CA
Thermal Engineers support the Spacecraft Development Program Managers and Chief Systems Engineer through the development of all spacecraft thermal system configurations, designs, analyses,…
Added 30 mins ago
AE
Campus Undergraduate Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Palo Alto, CA
American Express
Palo Alto, CA
- $78,000 to $124,750 USD / year
- Full-time
…enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the…
Added 30 mins ago
AE
Campus Graduate Masters Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Palo Alto, CA
American Express
Palo Alto, CA
- $78,000 to $124,750 USD / year
- Full-time
…enterprise data governance and platforms, digital product and design, and enterprise AI platforms on behalf of the…
Added 30 mins ago
K
Project Engineer - Electrical Construction
Kiewit
Irvine, CA
- $116,000 to $165,000 USD / year
The Project Engineer will support construction activities by planning, organizing, and implementing those processes to manage and communication information and project KPIs (i.e., project…
Added 30 mins ago
Hardware Engineer I (Intern) - United States
Cisco
San Jose, CA · Carlsbad, CA
…help each other grow. Because full product development - from design to qualification to production - is within our team, we’re able to think differently, experiment more, and work quickly.…
Added 31 mins ago
Consultant Chief Engineer (AHT)
Northrop Grumman
Los Angeles, CA
…drive excellence in missile development as a Consulting Chief Engineer . As part of NGDS, you’ll collaborate with top leaders to bring game-changing capabilities to global defense systems.…
Added 31 mins ago
Manufacturing Engineering Co-op (Summer/Fall 2027)
Collins Aerospace
Santa Fe Springs, CA
We are seeking a Manufacturing Engineer Co-op to join our team! The Manufacturing Engineer Co-op will support the Maintenance, Repair, and Overhaul (MRO) business by driving process and…
Added 58 mins ago
Software Engineer (Hybrid)
Cisco Systems, Inc.
San Jose, CA · RTP, NC
Design and develop modular, API-first solutions that bridge acquired entities with Cisco’s enterprise stack, specifically targeting complex order-to-cash and subscription systems.
Added 1 hour ago
O
Lead Principal Platform Software Engineer
Oracle
United States
- $113,600 to $306,400 USD / year
Architect, design, develop, deploy, and operate production-grade AI systems powered by LLMs, agents, retrieval, and enterprise data.
Added 1 hour ago
VM
Maintenance Engineer
Virginia Mason Franciscan Health
Burien, WA
- $45.23 to $46.73 USD / hour
As our Maintenance Engineer , you will be a critical technical leader, ensuring optimal performance, reliability, and longevity of facilities, equipment, and systems.
Added 1 hour ago
Senior Fire Protection Engineer
Amentum
Richland, WA
The Fire Protection Engineer (FPE) fulfills a key role in the development and administration of the WTP Fire Protection Program (FPP) within the Direct Feed LAW (DFLAW) Operating Island.

ColdQuanta

Senior Opto-Mechanical Engineer (Quantum Computing)

Boulder, CO, United States

$155,000 to $185,000 USD / year

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Job details

Pay: $155,000 to $185,000 USD / year
Experience: Bachelor’s degree in optical engineering, mechanical engineering, physics, or a related field with at least 5 years of relevant industry experience.
Posting language: English
Posted: Oct 31, 2026

Original job description

At Infleqtion we solve the world’s most challenging problems using cutting-edge quantum technology. Our mission is to commercialize atom-based quantum products that provide orders of magnitude improvements in sensing and computing applications. We are proud to work tirelessly to create and lead the quantum ecosystem towards meaningful advancements today and set the technology roadmap for tomorrow.

POSITION SUMMARY

Within Infleqtion’s Quantum Computing Product Group, the Hardware Engineering Team seeks a Senior Opto-Mechanical Engineer as a senior designer responsible for the realization of precision opto-mechanical subsystems that underpin scalable, high-performance quantum hardware.

The successful candidate will act as a technical authority for complex opto-mechanical, module-level decisions while working closely with physicists and cross-disciplinary engineering teams to translate experimental requirements into robust, high-performance optical hardware that supports future scaling paths. This role requires deep technical design and laboratory contributions.

JOB RESPONSIBILITIES

Typically, you will be entrusted with:

Owning opto-mechanical subsystems within an established hardware architecture and identifying technical risks, trade-offs, and long-term scalability constraints.
Executing on defined mechanical design and integration of precision components and assemblies supporting lasers, optics, vacuum-integrated components, state-of-the-art sensors (SPAD, EMCCD, sCMOS), high-speed photodetectors, DMDs, SLMs, AODs, EOMs, metasurface-based optics, and photonic integrated circuits (PICs).
Using emerging optical technologies from academia and industry and contributing to their physical implementation within Infleqtion’s next-generation neutral-atom quantum computing architectures.
Generating stability, tolerance, and error budgets for opto-mechanical systems to ensure performance across environmental and operational conditions.
Collaborating closely with physicists and optical, mechanical, electrical, software, and systems engineers to support the full experimental and hardware development lifecycle, from early research demonstrations through integrated, scalable, multi-generation systems.
Advancing design-for-manufacturing and design-for-assembly considerations early in the product lifecycle using data-driven methodologies, including model-based and hands-on root-cause investigations, corrective actions, and improved design and laboratory practices.
Using high-fidelity opto-mechanical simulations and executing on experimental strategies to characterize optical stability, drift, noise sources, and scaling limits, ranging from back-of-the-envelope calculations to detailed finite element analysis (FEA) encompassing tolerance stack-ups, thermal behavior, structural stiffness, and vibration sensitivity.
Providing technical leadership and mentorship support to developing opto-mechanical engineers through design reviews and hands-on coaching.
Supporting the transition of opto-mechanical subsystems from research-grade configurations to repeatable, maintainable, and scalable hardware suitable for increased atom counts.
Advancing current best practices for optical design workflows, laboratory procedures, documentation, and version control.

Requirements

Bachelor’s degree in optical engineering, mechanical engineering, physics, or a related field with at least 5 years of relevant industry experience. A Master’s degree or PhD may substitute for some experience.
Extensive ownership-driven experience designing, modeling, and validating laser-based opto-mechanical systems for high-performance hardware backed by a strong hands-on laboratory track record.
Proficiency with SolidWorks for complex scalable system design and analysis.
Working knowledge of Zemax (OpticsStudio) sufficient to collaborate on optical layouts and component selection validation.

WE HIGHLY VALUE:

Background in atomic physics, quantum optics, or photonics research environments.
Experience in low-volume, high-complexity hardware programs with demanding performance.
Strong verbal and written communication skills, with the ability to bridge physics and engineering perspectives.
A hands-on, detail-oriented mindset with a strong sense of ownership and technical accountability.
Positive, collaborative working style and enthusiasm for mentoring and developing engineers.

NOTE

Job responsibilities and requirements are illustrative, other responsibilities may be assigned as needed.
This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

TRAVEL

Up to 10% travel may be required.

WORKING CONDITIONS and PHYSICAL REQUIREMENTS

Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements.

Benefits

Salary range: $155,000 to $185,000 per year
100% company-paid medical, dental, vision, short/long-term disability
Employer-funded Health Savings Account
Unlimited PTO
401(k) match
Company-paid Life and AD&D Insurance
Flexible Savings Account
Paid FMLA, Maternity/Paternity Leave
Employee Assistance Program
Student Loan Repayment
Equity Package

Equal Opportunity

Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Note

This position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.

Contact Information

If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at hr@infleqtion.com.

Notice to Recruitment Agencies:

Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

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More about this job

Skills

Integrated circuits
Mechanical systems
Research
Assembly
FEA
Leadership
Coaching
Documentation
Optical engineering
Mechanical engineering
Dassault Systemes SolidWorks
Zemax
Quantum optics
Photonics
Communication skills
Office equipment
Personal protective equipment

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