Optical Engineering Intern

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    CACI International Inc

    Expanding the limits of national security

    10,001+ employeesFounded 1962Reston, VirginiaDefense and Space Manufacturing
    Actively hiringPaidSummer 2027Defense and Space Manufacturing
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    About the role#

    As an Optical Engineering Intern, you will join a team focused on complex technical challenges. You will work on projects tailored to your interests and strengths while supporting the development of large reflective remote sensing systems. This is a part-time, on-site internship for Summer 2027 located in Danbury, Connecticut.

    What you'll do#

    • Perform optical system modeling and execute design tasks.
    • Design reflective optical systems using Zemax.
    • Analyze interferometric data with tools such as 4D or MetroPro.
    • Create and review error budgets for SFE/WFE performance.
    • Model optical characteristics, including PSD or Encircled Energy.
    • Conduct hands-on optical engineering work.

    What you'll need#

    • Current enrollment in a Master's degree program in Optical Engineering or a closely related field.
    • If your degree is outside of Optical Engineering, you must demonstrate a working knowledge of the fundamentals.
    • Understanding of geometrical and Fourier optics.
    • Experience or coursework in optical system modeling.
    • Familiarity with interferometry and related analytical tools.
    • Legal authorization to work in the United States without employer sponsorship.
    • Ability to pass a pre-employment drug screening.
    • A GPA of 3.0 or higher and previous internship or work experience are preferred.

    Location & details#

    • Location: Danbury, CT.
    • Modality: On-site.
    • Term: Summer 2027.
    • Compensation: This is a paid position with a salary range of $55,600 to $111,100.
    Relevant fieldsOther

    About CACI International Inc

    CACI International Inc provides technology and expertise for national security missions. The company operates in sectors including defense, intelligence, cyber, and space. Founded in 1962, it maintains its headquarters in Reston, Virginia. The organization employs over 27,000 people and is a member of the Fortune 500.

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