Principal Building Mechanical Engineer

Overview

Lead design of mechanical systems for water and wastewater facilities

Key Responsibilities

• cost estimating
• system sizing
• contract docs
• mechanical design
• control schematics
• project management

Tasks

-Prepares scopes of work, level of efforts, construction and design cost estimates -Considers and refines existing standards and approaches for application to specific projects -Performs heating/cooling and system sizing calculations -Production of contract documents including plans and specifications -Prepares contract drawings and specifications -Works with multi-discipline project teams -Works with experienced mechanical engineers to develop mechanical design and analysis approach -Follows selected design approach through completion of analysis, detailing and presentation -Develops Control descriptions -Prepares technical memorandums and reports -Develops Process and Control schematics -Attends to details in preparation or review of calculations, drawings, and specifications; works logically and is technically consistent with design standards and accuracy -Monitors scope, schedule, and budget -Manages the mechanical HVAC and odor control portion of small to medium sized projects for water and wastewater treatment facilities -Works as part of the project team and to effectively complete one or more portions of large or complex tasks -Back checks work for approach and correctness

Requirements

• mechanical design
• hvac
• odor control
• nfpa 820
• pe
• 20+ years

What You Bring

-Ability to read and understand P&IDs, control strategies, and the development of control schematics based upon these documents -Proficiency in the design of mechanical systems for water and wastewater treatment facilities -Recognizes results for discrepancies or inconsistencies -Ability to work with multi-discipline project teams -Strong knowledge of hazardous/classified area design -Strong knowledge of design of HVAC and odor control systems -Ability to make basic technical decisions regarding analysis and detailing -Strong knowledge of NFPA 820 -Highly motivated self-starter -Comprehensive knowledge and understanding of national and local energy codes -Ability to work independently to effectively complete routine task -Bachelor's Degree in Mechanical Engineering or related field with a Masters in Mechanical Engineering. 20+ years experience working with custom HVAC equipment, odor control, fire detection and protection and miscellaneous water systems for water and wastewater facilities. Professional Engineer registration required.

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About Parsons Corporation

-Over decades it expanded into oil, petrochemical, water and infrastructure projects across the US and globally. -It leverages digital tools such as AI platforms, utility data systems, and drone integration alongside traditional design and construction. -Parsons completed high‑profile projects like major bridge, tunnel, and transit works. -Specializing in transportation, energy, environmental remediation, urban development, industrial, and cybersecurity projects. -The firm has delivered hundreds of mega‑projects worldwide, including infrastructure in the Middle East and environmental cleanup contracts.

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