Senior Mechanical Engineer

Symbiotic Services; Illinois; On-site; USD 90,000 - 135,000; Full time

Job summary

Symbiotic Services in Granite City, Illinois, seeks a Senior Mechanical Engineer to lead HVAC, piping, and ventilation design for complex industrial and commercial projects within a design-build environment.

The role emphasizes translating client needs into cost-effective solutions, developing drawings and calculations, and collaborating with project managers to align budgets and schedules, with a focus on quality and constructability.

Qualifications

• Strong background in mechanical engineering, HVAC/piping preferred.
• Experience in industrial or commercial environments.
• Ability to work in a fast-paced design-build setting.
• Strong communication across technical and non-technical teams.

Responsibilities

• Design and engineer HVAC, piping, and ventilation systems.
• Develop drawings, specifications, and calculations.
• Collaborate with project managers on budget and schedule alignment.
• Interface with clients to present technical solutions.
• Support installation and commissioning.
• Ensure compliance with codes and standards.
• Contribute to process improvements and standardization.

Skills

HVAC design

Piping design

Project collaboration

Code compliance

Job description

Granite City, United States | Posted on 04/09/2026

Symbiotic Services is seeking a Senior Mechanical Engineer to support complex industrial and commercial projects within a design-build environment. This role combines technical design expertise with project execution.

Core Focus

• Translate client needs into practical, cost-effective solutions
• Support execution alongside project managers and field teams
• Drive quality, efficiency, and constructability

Key Responsibilities

• Design and engineer HVAC, piping, and ventilation systems
• Develop drawings, specifications, and calculations
• Collaborate with project managers on budget and schedule alignment
• Interface with clients to present technical solutions
• Support installation and commissioning
• Ensure compliance with codes and standards
• Contribute to process improvements and standardization

Qualifications

• Strong background in mechanical engineering (HVAC/piping preferred)
• Experience in industrial or commercial environments
• Ability to work in a fast-paced design-build setting
• Strong communication skills across technical and non-technical teams
• Practical, solutions-oriented mindset

Additional Context

• Strong collaboration required between engineering and project management
• Ideal candidates design with construction in mind