Mechanical Design Engineer II/III (MEP)

Socket.dev; Washington (District of Columbia); Hybrid; USD 70,000 - 116,000; Full time

Job summary

Interface Engineering, a 100% employee-owned firm, is seeking a Mechanical Design Engineer II/III (MEP) in Washington, DC, with a hybrid schedule (3 days in-office per week minimum). You’ll lead HVAC projects, assist with drawings and calculations, and collaborate with clients to deliver high-performance design solutions.

The role requires a BSME or equivalent, 2+ years of MEP/AEC design experience, and knowledge of codes.

Qualifications

• BSME, or equivalent experience.
• 2+ 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

Responsibilities

• 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

Skills

MEP design

HVAC design

Client interaction

Education

BSME or equivalent

Tools

IES-VE

Job description

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

Mechanical Design Engineer II/III (MEP) – Washington, DC (Hybrid)

Interface Engineering Inc.

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 ourCollaboration from Homepolicy—giving you the flexibility of a hybrid schedule (3 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. OurPathway to Leadershipprogram 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!

Our Core Values:

• We are Conscientious
• We are Empowered
• We are Respectful
• We are Transformative
• We are Resilient

Key Responsibilities:

As a Mechanical Design Engineer III 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:

• BSME, or equivalent experience.
• 2+ 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:

• A Professional Engineering License
• LEED Accreditation
• Working IES-VE knowledge

What You’ll Love

• Competitive Pay: $76,326 to $116,390 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

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.