MECHANICAL SENIOR ENGINEER (PE REQUIRED)

Benefits:

• 401(k)
• 401(k) matching
• Competitive salary
• Dental insurance
• Health insurance
• Opportunity for advancement
• Paid time off
• Training & development
• Vision insurance
• Wellness resources

Location: San Diego, California (On-site)
Compensation: $130,000 $149,000 annually

About the Role:
This role is for a licensed Mechanical Professional Engineer who wants to lead complex HVAC projects, influence technical standards, and operate at a high level within a growing MEP firm.

You will not be a production-only engineer. You will be trusted with design authority, QA/QC accountability, and client-facing leadership.

Who This Role Is For:

• You take ownership of your work and project outcomes
• You are confident making technical decisions and standing behind them
• You have strong experience with U.S.-based commercial HVAC design
• You want to grow into higher-level leadership within a structured firm

What Youll Do:

• Lead HVAC system design for commercial, mixed-use, and institutional projects
• Oversee QA/QC across multiple projects to reduce errors and liability
• Perform and review heating/cooling load calculations and system sizing
• Design and review ductwork, piping, and hydronic systems
• Support project managers with technical forecasting and risk planning
• Participate in client meetings and represent the firm at a senior level
• Contribute to internal standards and technical training

What Success Looks Like (First 90 Days):

• Fully integrated into active project teams
• Independently leading mechanical design scopes
• Contributing to QA/QC improvements
• Demonstrating reliability in deadlines and coordination

Non-Negotiable Requirements:

• Active Professional Engineer (PE) license (U.S.)
• 8+ years of mechanical (HVAC) design experience
• Strong experience with U.S. commercial projects
• Proficiency in Revit and mechanical design software
• Strong understanding of mechanical codes and California requirements
• Experience performing HVAC load calculations and system design
• Ability to lead coordination and communicate with clients

Compensation & Benefits:
At 120 Degreez, we invest in our teams long-term successprofessionally and personally.

• 401(k) with up to 3% employer match
• 70% employer-paid medical insurance + 100% dental and vision
• $1,500 annual professional development and certification allowance
• Paid Company Holidays + 2 weeks of Paid Time Off (PTO) + 1 week Paid Sick Leave
• 100% employer-paid life insurance
• Clear career advancement pathway from Designer through Principal
• Collaborative, structured, and growth-focused work environment

Work Authorization:
We are not able to provide visa sponsorship for this role. Candidates must be authorized to work in the United States without current or future sponsorship requirements.

Who Should NOT Apply:

• Candidates with less than 4 years of relevant MEP experience
• Candidates without U.S.-based project experience
• Candidates not proficient in Revit
• Individuals seeking heavily supervised or entry-level roles