Mechanical Engineer

The Role: We are seeking a skilled and motivated Mechanical Engineer with 5 to 15 years of experience to support the design and delivery of high-performing building systems. This role involves contributing to complex HVAC, plumbing, and controls designs, performing energy analyses, and coordinating with interdisciplinary teams. The ideal candidate will possess a strong technical foundation, a collaborative mindset, and a desire to grow into a project leadership role.

What You’ll Be Doing:

Design & Technical Contributions

  • Assist in the design of HVAC systems using advanced engineering tools and methodologies
  • Support energy modeling, life cycle cost analysis, and system feasibility studies
  • Perform load calculations and assist with equipment sizing and selection
  • Design and layout ductwork and hydronic systems
  • Contribute to plumbing and controls system designs
  • Prepare specifications and coordinate with drawings from other disciplines
  • Stay current with applicable codes, standards, and sustainability practices

Project Support & Coordination

  • Collaborate with internal team members across disciplines to meet project deadlines and quality standards
  • Participate in internal reviews, project meetings, and site visits as needed
  • Support project documentation and submittals
  • Provide technical input during proposal development and project planning

What You Bring to the Team:

  • Bachelor of Science in Mechanical Engineering or related field (required)
  • 5–15 years of mechanical design experience in the AEC industry
  • PE license (required); if not licensed in Oklahoma, must obtain within two years
  • Proficient in AutoCAD, Revit, Microsoft Office Suite
  • Familiarity with HVAC load and energy modeling tools (e.g., Carrier HAP, Trane TRACE)
  • Strong communication skills and ability to work effectively on multi-discipline teams
  • Willingness to travel to project sites as needed

Physical Requirements:

  • Ability to sit or remain in a stationary position for extended periods (up to 50%)
  • Ability to walk within the office or on job sites (25%)
  • Full range of motion for site-based work, including stooping and standing (25%)
  • Manual dexterity to operate standard office equipment (computer, copier, etc.)
  • Effective verbal communication and clear visual focus on screen-based work
  • Must be able to lift and carry up to 30 lbs. of field equipment as needed

Why Guernsey

Join a company that is passionate about improving lives through engineering excellence. At Guernsey, you’ll work alongside collaborative teams, tackle meaningful projects, and have opportunities to grow professionally in a supportive and forward-thinking environment.

We Are an Equal Opportunity Employer

Guernsey is an Equal Employment Opportunity/Affirmative Action employer. We value diversity and are committed to creating an inclusive environment for all employees.