Senior Mechanical Engineer

Haag, a Salas O'Brien Company•Memphis, TN

27d•$140,000 - $160,000•Hybrid

About The Position

Salas O’Brien is seeking a Senior Mechanical Engineer to develop and lead HVAC and process ventilation design for complex, secure, high-hazard federal facility programs. This role involves supporting the modernization of Department of Energy and National Nuclear Security Administration facilities. The Senior Mechanical Engineer will work in a fast-paced, multidisciplinary team environment, leading HVAC and process ventilation design for new facilities, additions, and renovation projects, with a focus on hazardous occupancy and secure facility environments. Responsibilities include providing technical leadership for construction drawings and specifications, existing system studies, and facility master planning, encompassing base building HVAC systems and specialized process ventilation, fume/smoke exhaust, and gas-monitoring systems. The role requires client interaction, collaboration with project teams, code officials, and contractors throughout the design lifecycle. The clientele includes Federal Government (DOE/NNSA), Department of Defense, national laboratory-adjacent programs, Higher Education, Commercial, Health Care, Science and Technology, and other municipal and institutional facilities.

Requirements

Bachelor's Degree in Mechanical Engineering.
A Professional Engineer (PE) license.
A minimum of 10 years of design experience.
Knowledge in the design of HVAC systems, including specialized process ventilation, fume exhaust, and gas-handling systems.
Knowledge and understanding of applicable codes, standards, and design guidelines, including hazardous occupancy classifications (e.g., IBC H-2) or a demonstrated ability to rapidly develop this expertise.
Proficiency in AutoCAD, Revit, and MS Office.
Ability to obtain and maintain any security clearance required by assigned programs.
Ability to travel.

Nice To Haves

A minimum of 2 years of project management experience.
Experience with secure or federal government facility design is preferred.

Responsibilities

Meet with clients to determine and document HVAC and process ventilation requirements.
Develop HVAC and specialized process ventilation system designs based on project scope, client RFPs, and hazardous occupancy classification requirements.
Provide engineering design, evaluation, and planning of mechanical systems for a variety of building types, including base building HVAC and specialty systems (fume/smoke exhaust, gas detection/monitoring, chemical treatment systems) for high-hazard process environments.
Perform load/energy calculations using software such as Trace 700/3D, IES, and similar programs.
Conduct existing building surveys and documentation of existing HVAC systems, including comparative analysis between an existing reference facility and a target facility.
Develop system design calculations and equipment selection for use in buildings.
Evaluate material compatibility and equipment durability for mechanical systems operating in chemically aggressive or corrosive process environments.
Write/edit project specifications.
Prepare detailed design documents, reports, and studies.
Complete code compliance research, including hazardous occupancy classification requirements.
Coordinate work with other disciplines, including structural, electrical, fire protection, process, and security systems.
Provide engineering services during construction (ESDC), including RFI response and field-condition validation.
Provide construction administration services.
Perform QA/QC of design work.
Oversee and provide guidance to junior engineers.
Lead project teams and serve as the primary contact for clients.
Assist in the procurement of new work, including the development of client relations and participation in project interviews.