Senior Mechanical Design Engineer

LVI Associates; Tempe (AZ); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

100% employee-owned company

401(k) with generous match

Medical, dental, vision coverage

Performance-based bonus opportunities

Paid parental leave

Generous PTO and holidays

Licensing support

Company-paid memberships

Wellness initiatives

Clear advancement opportunities

Job summary

LVI Associates in Tempe, AZ, is seeking a Senior Mechanical Design Engineer (PE) to lead HVAC building systems design for commercial and institutional projects. You will own design from concept through construction, mentor junior engineers, and collaborate with architects, contractors, and clients.

The role requires a PE license, a BS in Mechanical Engineering, and 5+ years of experience. You will perform calculations, develop layouts, and guide teams.

Qualifications

• Bachelor's degree in Mechanical Engineering or related field.
• Professional Engineer (PE) license required.
• 5+ years of mechanical building systems design experience.
• Ability to interpret mechanical and plumbing drawings and construction docs.

Responsibilities

• Lead mechanical system design efforts for small and large-scale projects.
• Participate in project planning sessions and act as key technical contributor.
• Develop conceptual and detailed HVAC layouts for estimates and construction docs.
• Perform heating/cooling load calculations, equipment sizing, and duct/pipe sizing.
• Conduct field visits and construction-phase reviews to ensure design intent.
• Provide mentorship to junior engineers and designers.
• Coordinate with clients, architects, contractors, and internal teams.
• Assist in resolving construction and design challenges during execution.

Skills

PE license

5+ years experience

HVAC design

Client interaction

Mentorship

Education

Bachelor's degree in Mechanical Engineering

Tools

AutoCAD/Revit

Job description

Senior Mechanical Design Engineer (PE)

Shape Complex Building Systems Projects with an Industry-Leading Employee-Owned Firm

Are you a licensed Mechanical Engineer looking for the opportunity to lead impactful projects, mentor junior engineers, and influence the design of innovative building systems? Our client, a nationally recognized engineering and construction organization, is seeking a Senior Mechanical Design Engineer to join its growing team.

In this role, you'll take ownership of HVAC and mechanical system design for a wide range of commercial and institutional projects while collaborating with multidisciplinary teams from concept through construction. This is an excellent opportunity for an experienced engineer who enjoys technical leadership, client interaction, and mentoring the next generation of engineers.

What You'll Do

• Lead mechanical system design efforts for small and large-scale projects.
• Participate in project planning sessions and serve as a key technical contributor during design meetings.
• Develop conceptual and detailed HVAC system layouts for estimating and construction documentation.
• Perform complex engineering calculations including heating and cooling loads, equipment selection and sizing, duct and pipe sizing, and pressure loss calculations.
• Conduct field visits and construction-phase reviews to ensure design intent is achieved.
• Provide technical guidance and mentorship to junior engineers and designers.
• Coordinate with clients, architects, contractors, and internal project teams to deliver successful project outcomes.
• Assist in resolving construction and design challenges throughout project execution.

What We\'re Looking For

• Bachelor\'s degree in Mechanical Engineering or a related engineering discipline.
• Professional Engineer (PE) license required.
• 5+ years of mechanical building systems design experience.
• Strong understanding of HVAC systems and building mechanical infrastructure.
• Ability to interpret mechanical and plumbing drawings and construction documents.
• Experience with engineering design software, AutoCAD/Revit, and Microsoft Office applications.
• Strong communication and presentation skills with the ability to work directly with clients and project stakeholders.
• Proven ability to lead projects and mentor developing engineers.

Why Consider This Opportunity?

This organization invests heavily in its employees and provides an environment where engineers can grow into technical and leadership roles while working on challenging, high-profile projects.

Highlights Include:

• 100% employee-owned company with long-term wealth-building opportunities
• 401(k) with a generous company match and immediate vesting
• Medical, dental, and vision coverage with employee premiums fully paid
• Performance-based annual bonus opportunities
• Paid parental leave
• Generous PTO and paid holidays
• Professional development, training, and licensing support
• Company-paid professional memberships
• Wellness initiatives and employee support programs
• Collaborative culture with clear advancement opportunities

The Opportunity

Join a team known for tackling complex engineering challenges while fostering a culture of collaboration, innovation, and professional growth. If you\'re looking for a role where your technical expertise will be valued, your leadership skills can expand, and your contributions directly impact project success, we\'d love to hear from you.