Structural Engineer Assistant Jobs in Phoenix, AZ

Position: Structural Project Engineer 
Reports to: Project Manager 

Job Summary: 
Loenbro is seeking a Structural/Mechanical Project Engineer to support our Structural/Mechanical Division. The ideal candidate will be responsible for ensuring the technical accuracy and quality of all structural and mechanical project aspects, providing engineering support to the project team, and facilitating successful project execution from conception through completion. 

About Loenbro

Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S. Our service offerings include Critical Electrical, Mechanical & Structural, Soft Crafts, Inspection, Underground Maintenance and Installation, and Fabrication, and our vertical market focus spans all industries. Our expertise lies in simplifying the complex, so that our clients gain clarity and control in construction and maintenance. We do this by taking full ownership on every interaction, delivering multi-scope project excellence, and establishing long-standing relationships with our partners as we enhance and maintain your critical infrastructure. We have a national presence but a local approach-so that every customer benefits from our capabilities and our care. Through their relationship with us and the One Loenbro model, our customers are able to simplify, control, and succeed in the everyday.

Responsibilities: 

• Technical Engineering Support: 
  Provide engineering support for structural steel erection, mechanical systems installation, and equipment setting. Review and interpret structural steel drawings, mechanical P&IDs, and equipment layout plans. Perform structural and mechanical calculations to verify design integrity and compliance with AISC, AWS, and ASME codes. Coordinate with engineering teams to resolve technical issues and implement design changes. 

• Quality Control & Inspection: 
  Implement and maintain quality control procedures for structural and mechanical work. Coordinate and witness structural steel inspections, weld testing, and mechanical system commissioning. Maintain inspection records and ensure all work meets project specifications and quality standards. Review material certifications for steel members, bolts, and mechanical components. 

• Document Management: 
  Maintain and organize all structural and mechanical documentation including shop drawings, fabrication documents, weld procedures, and equipment submittals. Manage RFIs specific to structural connections, mechanical systems, and equipment interfaces. Ensure all as-built documentation accurately reflects field installations. 

• Field Engineering & Coordination: 
  Provide field engineering support for structural steel erection and mechanical equipment installation. Verify field dimensions, elevations, and alignments for structural fit-up and equipment setting. Coordinate with survey teams for layout verification and control points. Monitor field work for compliance with structural and mechanical specifications. 

• Procurement & Materials Management: 
  Perform material take-offs from structural and mechanical drawings. Prepare technical specifications for purchase requisitions of structural steel, mechanical equipment, and specialty components. Review vendor submittals for technical compliance with project requirements. Track material deliveries and manage receiving inspections. 

• Planning & Scheduling Support: 
  Assist in developing detailed installation sequences for structural steel and mechanical systems. Support the creation of project schedules with emphasis on structural erection sequences and mechanical system commissioning. Monitor progress against milestones and identify potential schedule impacts. 

• Safety & Compliance: 
  Support the development of site-specific safety plans with focus on steel erection, crane operations, and mechanical installation hazards. Ensure all work complies with OSHA regulations and company safety standards. Participate in safety audits and incident investigations. 

Knowledge and Skills: 

• Strong understanding of structural engineering principles and mechanical system design 

• Proficiency with structural analysis software and mechanical design tools 

• Ability to perform structural calculations and review engineering designs 

• Knowledge of AISC, AWS, ASME, and other relevant codes and standards 

• Experience with steel connection design and detailing requirements 

• Understanding of mechanical equipment installation and commissioning 

• Excellent technical problem-solving and analytical skills 

• Proficient with Microsoft Office Suite and project management software 

• Ability to read and interpret complex structural and mechanical drawings 

• Strong communication skills for technical coordination 

• Bachelor's degree in Structural Engineering, Mechanical Engineering, or related field 

• 2-4 years of structural/mechanical engineering experience required 

Physical Demands and Work Environment

The physical demands and work environment characteristics described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

Work Environment:

Indoor office setting with controlled temperature.

Outdoor industrial sites with exposure to weather extremes.

Potential exposure to noise, dust, chemicals, or other environmental factors.

Travel requirements: up to 10% of time.

This role requires compliance with all applicable safety regulations, personal protective equipment (PPE) requirements, and Loenbro's Environmental Health and Safety (EH&S) policies.

Benefits

Loenbro offers a competitive salary, comprehensive benefits package, and rewards to those who join our team:

Medical, dental, and vision insurance

401(k) retirement plan with company match

Paid time off (PTO) and holiday pay

Life and disability insurance

Professional development and training opportunities

Employee assistance program (EAP)

Benefits eligibility may vary based on employment classification and hours worked.

Our Core Values

LEAD with Values:

Live with Integrity - We do the right thing and do what we say, in every Interaction - and practice stewardship to car for the communities where we live & work.

Exceed Expectations - We anticipate customer needs, deliver Innovative solutions, and dedicate ourselves to creating outcomes that make a real difference.

Act with Urgency - We take action, adapt seamlessly, and keep projects moving without compromising quality - because our customers priorities are our priorities.

Deliver Excellence - We combine our passion for quality, our Industry expertise, and our eye for Innovation to make excellence our standard.

Guided by core values, grounded in grit and a commitment to excellence, Loenbro maintains and enhances the industrial infrastructure that betters our families, customers, and local communities.

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Loenbro is an Equal Opportunity Employer.