Senior Opto-Mechanical Engineer

6 hours ago


San Jose, California, United States Credo Semiconductor Full time $120,000 - $180,000 per year

Credo is engineering the future of high-speed connectivity for the AI-driven world. With a deeply rooted legacy of innovation and a passion for solving the most complex networking challenges, we deliver industry-leading solutions that power the next generation of cloud, AI, and hyperscale data centers.

Credo is pioneering a systems-level approach to connectivity, integrating hardware, software, and architecture to deliver holistic solutions. This strategy not only differentiates us in the market but also creates significant value for our customers by accelerating deployment, improving performance, and reducing complexity across their infrastructure.

At Credo, you'll be part of a team of world-class technologists and engineers that thrive on pushing the limits of what's possible for some of the world's most important companies. Our portfolio includes cutting edge solutions including our software, optical DSPs, PCIe/CXL products, SerDes IP, and advanced Active Electrical Cables (AECs) all designed for maximum performance, energy efficiency, and scalability.

We foster a culture of technical excellence, collaboration, and continuous learning, where your ideas can shape the future of connectivity. From silicon architects to systems engineers, every role at Credo contributes to solving real-world problems at scale.

Join us and help us architect the next generation of disruptive networking technologies — because at Credo, We Connect.

About the Role

Credo is seeking a Senior Opto-Mechanical Engineer to join our Core Technology Development (CTD) team. This role is pivotal in developing innovative optical packaging solutions and scaling them for high-volume production, including test and verification. You will collaborate with a global team of experts in semiconductor micro-devices and communication systems to co-develop novel packaging concepts with vendor partners. These concepts must meet mechanical, thermal, optical, and reliability performance requirements. This is a hands-on, product development-focused engineering role ideal for someone passionate about designing high-volume systems.

Key Responsibilities

  • Design and integrate optical assemblies and sub-assemblies.
  • Develop mechanical architecture, thermal management strategies, strain relief processes, and process flows for high-density optoelectronic packages.
  • Lead FEA analysis (thermal, stress, shock/vibration) and define materials and tolerances for epoxies, reflow, and thermal cycling.
  • Drive process de-risking and design-for-manufacturing (DFM) efforts from prototype through volume production.
  • Create and maintain design documentation, 3D models, and assembly drawings using SolidWorks and ANSYS.
  • Oversee experimental work related to thermal, mechanical, and environmental qualification of optical products; analyze measurement data to inform design decisions.

Basic Qualifications:

  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, or a related field with a focus on packaging and mechanical analysis.
  • Minimum 5 years of industry experience in packaging development for communication applications.
  • 4–5 years of experience in high-speed electronics and optical package design.
  • Proven expertise in optical fiber and component packaging for communication systems.
  • Experience collaborating with OSATs and external partners to transition products from design to volume manufacturing.
  • Demonstrated proficiency in thermal design and testing.
  • Strong interpersonal, communication, and problem-solving skills for effective collaboration with internal teams and external vendors.

Preferred Qualifications:

  • Hands-on experience building automated optical setups for measurement and qualification, including automation and image processing for mechanical verification.
  • Master's or Ph.D. in a related field with experience in optical and communication industries.
  • Experience in system-level packaging assembly development.

Credo is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and welcome applicants from diverse backgrounds without regard to race, color, religion, gender, sex, sexual orientation, national origin, genetic information, age, disability, veteran status, or any other legally protected basis.

If you have a disability or special need that requires accommodation to navigate our website or complete the application process, email



  • San Diego, California, United States Quartus Engineering Full time

    About QuartusQuartus Engineering Incorporated ) is a leading provider of engineering services and integrated hardware solutions for a wide range of clients and industries. We employ advanced computer-aided engineering tools in the areas of optics, structural, thermal, and coupled analyses. We couple our engineering analysis capabilities with design,...


  • San Francisco, California, United States Opto Investments Full time $150,000 - $190,000 per year

    Opto is engineering the future of private markets to improve client outcomes and drive capital to the most transformative ideas.The opportunity is huge. The global alternative investments industry was worth an estimated $16.8T at the end of 2023, and is forecast to grow to $29.2T by 2029. However the private investment process typically remains opaque,...


  • San Jose, California, United States Lumentum Operations Full time

    locationsUSA - CA - San Jose (1751 Fox)time typeFull timeposted onPosted Todayjob requisition id It's fun to work in a company where people truly BELIEVE in what they're doingWe're committed to bringing passion and customer focus to the business.If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with usSr...


  • San Jose, California, United States Fortera Corporation Full time $160,000 - $180,000 per year

    Want to disrupt one of the largest industries in the world? Fortera is a Materials Technology Company headquartered in Silicon Valley focused on paving the way to zero CO2 cement. The technology is inspired by nature and directly converts CO2 into a replacement for ordinary cement, turning a problem into a product. With over 100,000 hours of R&D, 10+ years...


  • San Jose, California, United States Muon Space Full time $181,000 - $202,000 per year

    About the roleMuon seeks a Senior Mechanical Engineer to join our team. The ideal candidate can go deep on design and analysis but also has a "systems mindset" and will be a force multiplier collaborating with other disciplines to arrive at an elegant, well-balanced design.  Being an early-stage startup with a small team, breadth is extremely important and...


  • San Jose, California, United States Cisco Full time $150,000 - $250,000 per year

    The application window is expected to close on: October 3, 2025Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received.This role requires being onsite in San Jose, CA at least 4 days/week.Meet the TeamWe are the Service Provider (SP) Mechanical and Thermal team responsible for the design of Cisco's...


  • San Francisco, California, United States Pacific Fusion Full time $150,000 - $250,000 per year

    About Pacific FusionPacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build...


  • San Francisco, California, United States Placement Club Full time $120,000 - $180,000 per year

    CompanyAs one of the nation's largest MEP (Mechanical, Electrical, Plumbing) design-build firms, providing comprehensive lifecycle solutions for complex building systems, we integrate design, construction, energy, and service into a single, collaborative process that delivers maximum value. Our projects span multiple industries, including healthcare,...


  • San Jose, California, United States Micron Technology Full time $90,000 - $120,000 per year

    Mechanical design of automated/semi-automated equipment, tooling, fixturing, and support assemblies. The output being design documents to include requirement specifications, CAD models, fabrication prints, detailed assembly prints, end use documentation, and test/check-out specifications. Mechanical design and analysis computations (stress, strain,...


  • San Francisco, California, United States Muon Space Full time $181,000 - $202,000 per year

    About The RoleMuon seeks a Senior Mechanical Engineer to join our team. The ideal candidate can go deep on design and analysis but also has a "systems mindset" and will be a force multiplier collaborating with other disciplines to arrive at an elegant, well-balanced design. Being an early-stage startup with a small team, breadth is extremely important and we...