Internship Application - Mechanical Engineer

Critical Systems•Rockville, MD

About The Position

Critical Systems, LLC is seeking a motivated Mechanical Engineering Intern to join our Application Engineering team. This internship provides an opportunity to gain hands-on experience supporting the design, development, and application of mechanical systems used in data centers, healthcare facilities, laboratories, and other critical infrastructure environments. The ideal candidate is a current Mechanical Engineering student who is interested in applying classroom knowledge to real-world engineering projects and learning how mechanical systems are selected, designed, specified, and integrated into complex building environments.

Requirements

  • Currently pursuing a Bachelor’s degree in Mechanical Engineering or a closely related field.
  • Strong interest in HVAC, building systems, mechanical equipment, or engineering applications.
  • Basic understanding of engineering principles, thermodynamics, fluid mechanics, and heat transfer.
  • Proficiency with Microsoft Office, particularly Excel and Word.
  • Strong analytical, problem-solving, and organizational skills.
  • Ability to read and understand basic engineering drawings and technical documentation.
  • Strong communication skills and willingness to learn.
  • Ability to work both independently and as part of a team.

Nice To Haves

  • Gain hands-on experience supporting the design, development, and application of mechanical systems used in data centers, healthcare facilities, laboratories, and other critical infrastructure environments.
  • Apply classroom knowledge to real-world engineering projects.
  • Learn how mechanical systems are selected, designed, specified, and integrated into complex building environments.
  • Gain exposure to the coordination of mechanical systems with other building disciplines.
  • Learn how mechanical systems are applied in mission-critical environments where reliability, efficiency, and performance are essential.
  • Develop practical knowledge of HVAC systems, mechanical equipment selection, engineering calculations, construction documents, and critical infrastructure projects.
  • Gain an understanding of how engineering decisions are made from concept through implementation.
  • Build practical engineering experience and explore a career in Application Engineering and HVAC/mechanical systems.

Responsibilities

  • Assist Application Engineers with the selection and application of mechanical and HVAC equipment and systems.
  • Support engineering calculations, equipment sizing, and technical evaluations.
  • Review mechanical drawings, specifications, submittals, and equipment documentation.
  • Assist with preparing equipment selections, proposals, schedules, and technical documentation.
  • Research equipment, manufacturers, and applicable technical requirements.
  • Support engineers in evaluating project requirements and developing appropriate technical solutions.
  • Assist with CAD drawings, system layouts, and other engineering documentation as needed.
  • Participate in project meetings and gain exposure to the coordination of mechanical systems with other building disciplines.
  • Learn how mechanical systems are applied in mission-critical environments where reliability, efficiency, and performance are essential.
  • Perform other engineering-related tasks and special projects as assigned.

Benefits

  • Exposure to real-world mechanical engineering applications
  • Opportunity to work alongside experienced engineers
  • Develop practical knowledge of HVAC systems, mechanical equipment selection, engineering calculations, construction documents, and critical infrastructure projects
  • Gain an understanding of how engineering decisions are made from concept through implementation
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