Senior Mechanical Design Engineer (MEP)
About this role
Join a People-First, Employee-Owned Firm That’s Redefining Flexibility and Growth
Senior Mechanical Design Engineer (MEP) – Washington, DC (Hybrid)
Interface Engineering Inc.
Interface Engineering Inc.
(Relocation will be offered for highly qualified candidates)
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, 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!
Interface has the company culture and work environment you have been seeking! You’ll find a workplace with a culture of fun, 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:
The following Core Values capture the essence of who we are. We live and breathe them, and they inform everything we do.
- We are Conscientious.
- We are Empowered.
- We are Respectful.
- We are Transformative.
- We are Resilient.
Key Responsibilities:
As a Senior Mechanical Design Engineer (MEP) at Interface, you will be taking ownership as a discipline lead on multiple projects. Your duties will include (but may not be limited to):
- HVAC system selection, engineering & design.
- Preparation of HVAC drawings, analysis, specifications, and calculations.
- Demonstrate excellent communication skills.
- Provide oversight of HVAC support staff.
- Provide construction administration & site observations related to your projects.
- Provide exemplary service to team members and clients.
What You'll Bring:
Required:
- BS/Mechanical Engineering, or equivalent experience.
- A Professional Engineering License
- 10+ years' MEP/AEC design and consulting experience.
- Advanced knowledge of HVAC systems in public safety, educational, and commercial sectors.
- Knowledge of industry codes and standards
- Demonstrated interaction with clients in meetings or presentations
Preferred:
- LEED Accreditation
- Working IES-VE knowledge
What You’ll Love
- Competitive Pay: $102,431 to $159,339 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.
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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Company at a glance
Interface Engineering, Inc. delivers high‑performance mechanical and electrical engineering solutions that help clients create efficient, resilient, and future‑ready buildings. Our mission is simple: creating optimal environments for life. We focus on optimizing resources, achieving occupant comfort, delivering enhanced system performance, and applying advanced building‑science tools to support smarter design, construction, and ongoing operations.
Since 1969, we’ve partnered with owners, architects, and builders to solve complex challenges through collaboration, innovation, evidence-based data‑driven design and reliable engineering. From concept to occupancy, our team provides clear guidance, technical expertise, and collaborative support ensuring every project meets its performance goals while enhancing the experience of the people and communities it serves.
Founded1969
Team Size201-500 employees
WorkspaceHybrid
IndustryProfessional Services
Location
Washington, District of Columbia, United States
Websiteinterfaceengineering.com
LinkedInLinkedIn
Top Benefits
- Employee Stock Ownership Plan
- 401(k)
- Medical Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Disability Insurance
- Transportation Benefits
- Paid Time Off
- Paid Holidays
- Paid Volunteer Time
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