Principal / Senior Mechanical Design Engineer

Join a People-First, Employee-Owned Firm That’s Redefining Flexibility and Growth

Principal / Senior Mechanical Design Engineer (MEP) – Honolulu, HI (Hybrid)
Interface Engineering Inc.

(Relocation assistance will be considered for this opportunity.)

At Interface Engineering, we believe your career should be as dynamic and rewarding as the projects you support. As a 100% employee-owned firm, we’re proud to offer our Collaboration from Home policy—giving you the flexibility of a hybrid schedule (2 days in-office per week minimum) while staying connected to a team that values innovation, inclusion, and impact.

Why Interface?

We’re not just engineers—we’re collaborators, mentors, and trailblazers in high-performance design. Our Pathway to Leadership program offers a transparent, personalized roadmap for career advancement, empowering you to grow in the direction that excites you most.

Our Culture

Interface has the company culture and work environment you have been seeking! You’ll find a workplace with a culture of fun, and superior work/life balance benefits, expansive personal development opportunities, cutting-edge technology, and great relationships. You’ll work alongside MEP industry leaders who will help you develop your own thriving career path. Our work takes us around the globe and on a steady growth curve. Our success and innovation are powered by people like you!

Our Core Values:

• Conscientious.
• Empowered.
• Respectful.
• Resilient.
• Transformative.

Key Responsibilities:

As a Principal / Senior Mechanical Design Engineer at Interface, you will be taking ownership as a discipline leader on multiple projects. Your duties will include, but may not be limited to:

• Leading MEP Mechanical Design Projects for buildings in the commercial, medical, education, transportation, hospitality, retail, and other industries.
• Oversight (EOR) for the preparation of mechanical drawings, sketches, analysis, specifications and calculations.
• Leadership of Mechanical design staff.
• Providing construction administration & site observations related to your projects.
• Providing exemplary service to team members and clients.
• Developing and executing business with new and existing clients.

What You'll Bring:

Required:

• BSME
• 10+ years' experience in MEP design/consulting
• Team leadership/management experience
• Project Management Experience in the MEP space
• Healthcare building design and HCAI compliance experience
• High-energy client services skills
• Excellent communication ability
• Complete understanding of building codes
• Thorough design system knowledge

Preferred:

• 10-15 years’ experience in positions of increasing leadership in the commercial A/E engineering field
• Advanced knowledge of HVAC systems in healthcare, educational, and commercial sectors.
• Knowledge of industry codes and standards.

What You'll Love:

• Competitive Pay: $160,000 to $200,000 annual salary and conditional bonus
• Employee Ownership: Build equity through our Employee Stock Ownership Plan (ESOP)
• Robust Benefits: 401(k), medical, dental, vision, life & disability insurance, transportation benefits...and more!
• Generous Time Off: PTO, paid holidays, and company closure to clients from Christmas to New Year’s
• Purpose-Driven Culture: Paid volunteer time and a commitment to social equity
• Career Development: Work alongside industry leaders and access continuous learning opportunities

Ready to grow with us?

If you’re looking for a role where your voice matters, your growth is supported, and your work makes a difference—apply today and become part of the Interface Engineering family.

Social Equity:

Interface is committed to social equity within our walls and in our communities. We are a diverse, inclusive, and responsible firm. Interface provides equal employment opportunities (EEO) to employees and applicants regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status or any other applicable federal or state-protected classifications. We support local business and seek to partner with small and minority-owned firms on our projects. Our staff is empowered to design community service programs (e.g., clean up beaches, serve meals at shelters, tutor school-aged children, etc.) – using paid volunteer time.

Please note: H1-B visa sponsorship or transfer is not approved for this position.

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Job Type:

Full-time

Benefits:

• 401(k)
• Dental insurance
• Employee assistance program
• Employee discount
• Flexible schedule
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Professional development assistance
• Referral program
• Relocation assistance
• Retirement plan
• Tuition reimbursement
• Vision insurance

People with a criminal record are encouraged to apply

Work Location: In person