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Salas O’Brien Difference
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Expect A Difference®
Expect A Difference®
Ownership Values
Quality
People
Our Team
Careers
History
Community
Markets
Bulk Material Handling
Chemical Process
Commercial & Corporate
Data Centers & Telecom
Education (Higher Ed)
Education (K12)
Federal Government
Healthcare
High-Rise
Hospitality
Mixed-Use
Manufacturing
Municipal Government
Power Generation
Retail
Science & Technology
Transmission & Distribution
Services
Mechanical & Electrical
Structural
Building Science
Commissioning
Technology Design
Fire Protection
Industrial Process
Civil
Clean Energy
Roofing & Waterproofing
Automation & Controls
Architecture & Interiors
Construction Management
Insights
Connect
John
Siefken
John Siefken
Principal, Senior Electrical Engineer
Education
BS, Electrical Engineering, University of Nebraska
Certifications
PE
LinkedIn Profile
Type of work
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