Benefits:

401(k)

Competitive salary

Dental insurance

Employee discounts

Flexible schedule

Health insurance

Opportunity for advancement

Paid time off

Training & development

Vision insurance

Wellness resources

Job Title: Junior Mechanical Designer

Location: Full-time, on-site in Downtown San Diego, 92101

About Us:

120 Degreez MEP Engineering Firm is a leading provider of mechanical, electrical, and plumbing (MEP) engineering solutions. We specialize in delivering innovative and sustainable designs for commercial, multifamily, mixed-use, life science, and industrial developments. Our team is dedicated to pushing the boundaries of engineering excellence while maintaining a strong commitment to environmental sustainability, code compliance, and client satisfaction.

Job Description:

As a Junior Mechanical Designer at 120 Degreez, you will play an important role in supporting senior engineers in the design, drafting, and coordination of mechanical (HVAC) systems for a variety of building projects. This position offers an opportunity to develop your technical skills, gain hands-on experience, and grow within a collaborative and dynamic engineering environment.

Responsibilities:

Assist in the design and drafting of HVAC systems, including heating, ventilation, and air conditioning layouts under the supervision of senior engineers.

Perform basic load calculations, equipment sizing, and system layout preparation using standard software and firm design templates.

Develop plans, sections, and details for mechanical systems in AutoCAD and Revit, ensuring accuracy and coordination with other disciplines.

Collaborate with project teams to prepare comprehensive mechanical design packages, including drawings, specifications, and construction documents.

Conduct site visits to collect field data, verify existing conditions, and support senior engineers during construction phases.

Assist in the review of shop drawings, RFIs, and contractor submittals to confirm compliance with design intent and applicable codes.

Coordinate mechanical layouts with architectural, structural, and electrical teams to ensure smooth system integration and resolve design conflicts.

Stay informed about the California Mechanical Code, Title 24, and sustainable design best practices to support the firm’s commitment to energy efficiency.

Support internal process improvements, documentation updates, and quality standards for project deliverables.

Perform other tasks as assigned by senior engineers or management.

Qualifications:

1–2 years of experience in mechanical or HVAC design (internship or professional experience preferred).

Proficiency in AutoCAD and Revit required; familiarity with load calculation tools a plus.

Basic understanding of HVAC systems, Title 24 Energy Standards, and mechanical design principles.

Strong attention to detail, organization, and ability to manage multiple tasks in a fast-paced environment.

Excellent communication skills with the ability to work effectively as part of a multidisciplinary team.

Eagerness to learn, take initiative, and grow within the mechanical design field.

Benefits:

Competitive salary commensurate with experience.

Comprehensive health, dental, and vision insurance.

401(k) retirement plan.

Paid Time Off (PTO) and company holidays.

Flexible work schedule and supportive, collaborative environment.

Employee Assistance Program.

Professional development opportunities and continuing education support.

Opportunities for advancement and leadership within a growing firm.

Join Our Team At 120 Degreez MEP Engineering, innovation fuels everything we do. We are seeking a forward-thinking Junior Mechanical Designer ready to contribute to shaping the future of sustainable and high-performance building design. If you are passionate about technical excellence, collaborative teamwork, and professional growth—apply today and grow your career with us.

Other Information 120 Degreez is an Equal Opportunity Employer committed to fostering diversity and inclusion. We prohibit discrimination and harassment based on any protected characteristic as defined by federal, state, or local laws. All employment decisions are based on qualifications, merit, and business needs.