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Senior Mechanical Engineer @ CHG

Oklahoma City, Oklahoma, USOnsiteFull-time
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About this role

Why You'll Love Working Here:

• A culture that values integrity, teamwork, and professional growth

• Opportunities to lead and contribute to game-changing projects

• An ownership mindset—our ESOP structure means your success is our success

• Competitive compensation & benefits

• Emphasis on work-life balance and flexibility

• A leadership team that listens and supports your ambitions

At Guernsey, we're more than engineers, architects, and consultants—we're changemakers with a shared purpose. We're driven by curiosity, united by collaboration, and committed to building a better future—together. We're redefining what it means to work in the AEC industry, blending innovation with integrity and giving every employee a real stake in the outcome. Here, your ideas matter, your growth is prioritized, and your career has limitless potential.

What You'll Be Doing:

Design Leadership

• Lead the execution of complex HVAC system designs using advanced engineering techniques and technologies.

• Conduct energy modeling, life cycle cost analysis, and feasibility studies for proposed systems.

• Drive innovation in system selection, integration, and sustainability strategies.

• Oversee the production of construction documents and specifications

Team & Project Leadership

• Provide mentorship and technical guidance to junior and mid-level engineers.

• Coordinate cross-discipline design efforts and lead internal quality reviews.

• Manage scope, schedule, and deliverables on key projects.

• Support proposal development and pursuit strategy, including go/no-go planning.

Client & Business Engagement

• Build and maintain strong relationships with clients and industry partners.

• Attend client meetings and lead technical discussions.

• Support business development efforts through project interviews, client presentations, and marketing activities.

Technical Focus Areas

• HVAC load calculations and energy analysis

• Equipment selection and system layout

• Ductwork and hydronic piping system design

• Controls and automation system design

• Plumbing and domestic water systems

• Code compliance, LEED integration, and sustainable design best practices

What You Bring to the Team:

• Bachelor's degree in Mechanical Engineering or related field

• Licensed Professional Engineer (PE) required

• 15+ years of experience in mechanical building systems design

• Strong proficiency in AutoCAD, Revit, and Microsoft Office Suite

• Excellent communication, leadership, and mentoring skills

• Proven ability to manage complex projects and deliver high-quality outcomes

• Familiarity with energy modeling software (e.g., Trane TRACE, EnergyPlus) is a plus

Essential Physical Functions:

• Sit/stand at a desk or computer

• Walk, stoop, stand and move around job sites

• Travel and occasional site visits requiring stooping, standing, and lifting up to 30 lbs.

• Frequent communication via phone, video, or in-person meetings

• Ability to focus on digital and paper-based information for extended periods

• Some project-based travel may be required

Let's Build the Future Together!

If you're ready to make an impact, challenge the status quo, and grow with a forward-thinking, employee-owned company, we want to hear from you. Apply now and let's create something extraordinary!

We Are an Equal Opportunity Employer

Guernsey is proud to be an Equal Employment Opportunity/Affirmative Action employer.

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