3+ years of experience in industrial, commercial, or mission-critical facilities.
Experience with infrastructure design and construction for critical systems.
Strong understanding of integrated mechanical and electrical systems.
Valid driver's license and willingness to travel.
Responsibilities
Provide full lifecycle engineering support from design to maintenance.
Lead troubleshooting and root cause analysis for system failures.
Support operational excellence through procedure and training development.
Design and implement upgrades for capacity and reliability improvement.
Collaborate with cross-functional teams to maintain engineering standards.
Conduct engineering audits to identify risks and develop strategies.
Manage multiple concurrent projects while ensuring quality and safety.
Benefits
Comprehensive health and wellness programs.
Retirement savings plans with company match.
Generous paid time off and flexible work arrangements.
Professional development and training opportunities.
Collaborative and inclusive work environment.
Full Job Description
STN is looking for an experienced Mechanical Engineer with expertise in mission-critical infrastructure, industrial facilities, and large-scale engineering projects. Proven ability to support the full lifecycle of critical facilities from design and construction through commissioning, operation, troubleshooting, and continuous improvement. Skilled in root cause analysis (RCA), reliability engineering, HVAC systems, chilled water plants, power generation support systems, and data center infrastructure. Strong track record of collaborating with cross-functional teams to improve availability, efficiency, sustainability, and operational excellence in complex environments at STN.
Core Competencies
Critical Infrastructure Engineering
Data Center Operations & Design
Mechanical Systems Engineering
HVAC & Cooling Systems
Chillers, Cooling Towers, Pumps & Heat Exchangers
Root Cause Analysis (RCA)
Corrective and Preventive Actions (CAPA)
Reliability & Maintenance Engineering
Construction Management
Commissioning & Startup Support
Engineering Audits & Risk Assessments
Project Management
Building Codes & Design Standards
Energy Efficiency & Sustainability
EPMS, SCADA & BMS Systems
Water Treatment & Water Chemistry
Technical Documentation & Reporting
Cross-Functional Leadership
Professional Experience Critical Infrastructure Mechanical Engineer | STN
Provide full lifecycle engineering support for mission-critical facilities from design inception through construction, commissioning, operation, and ongoing maintenance.
Serve as the primary mechanical engineering resource for regional infrastructure projects and operational teams.
Lead troubleshooting efforts, root cause analyses (RCA), and corrective action development for critical equipment and system failures.
Support operational excellence through technical reviews, procedure development, equipment assessments, and training initiatives.
Design and implement upgrade projects that increase capacity, improve reliability, enhance energy efficiency, and support sustainability objectives.
Collaborate closely with operations, construction, commissioning, controls, environmental health and safety, and design teams to maintain engineering standards and operational consistency.
Conduct engineering audits and site assessments, identifying operational risks and developing mitigation strategies.
Support new construction projects as a resident engineer, ensuring successful installation, commissioning, startup, and system turnover.
Manage multiple concurrent projects across various locations while maintaining schedule, budget, quality, and safety objectives.
Develop innovative engineering solutions that improve facility performance, resilience, and long-term maintainability.
Technical Expertise Mechanical Systems
Air-Cooled Chillers
Water-Cooled Chillers
Cooling Towers
Pumps & Hydronic Systems
Heat Exchangers
CRAH Units
Air Economizers
Ventilation Systems
Variable Frequency Drives (VFDs)
Industrial Water Treatment Systems
Electrical Infrastructure Familiarity
UPS Systems
Diesel Generators
Electrical Switchgear
Automatic Transfer Switches (ATS)
Static Transfer Switches (STS)
Power Distribution Units (PDUs)
Controls & Analytics
Building Management Systems (BMS)
Supervisory Control and Data Acquisition (SCADA)
Electrical Power Monitoring Systems (EPMS)
Data Analytics & Performance Trending
SQL and Data Querying
Engineering Reporting & Dashboards
Automation & Scripting Fundamentals
Qualifications
Bachelor's Degree in Mechanical Engineering.
3+ years of experience supporting industrial, commercial, utility, power generation, oil & gas, or data center facilities.
Experience with mission-critical infrastructure design, operation, maintenance, or construction.
Strong understanding of integrated mechanical and electrical systems.
Ability to read and interpret engineering drawings, specifications, submittals, and applicable building codes.
Valid driver's license and willingness to travel to project locations as required.
Key Strengths
Strong engineering judgment and technical decision-making.
Exceptional troubleshooting and problem-solving capabilities.
Excellent written and verbal communication skills.
Strong organizational and project management abilities.
Data-driven approach to reliability and performance improvement.
Effective collaborator with multidisciplinary teams and stakeholders.
Comfortable balancing office engineering work with hands-on field support.
Committed to safety, operational excellence, and continuous improvement.
