Senior Mechanical Engineer in Knoxville
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Résumé du poste
Mesa Associates, Inc. in Knoxville, TN seeks a Senior Mechanical Engineer to act as a versatile generalist across the Mechanical Engineering department, delivering HVAC, utility, and piping projects for industrial and government clients.
This is a hands-on role, requiring practical design, calculations, and mentoring of junior staff. You will move between scopes as projects shift, collaborate with civil and electrical teams, and support proposals.
Qualifications
- Bachelor's degree in Mechanical Engineering and PE License (required).
- 10+ years of breadth across HVAC, utility systems, and piping design.
- Ability to move between different mechanical scopes as projects demand.
Responsabilités
- Personally perform HVAC load calculations, equipment selection, and ductwork design for assigned projects from concept through issued-for-construction.
- Support design of utility systems: compressed air, cooling water, potable water, hydraulic and lubricating systems.
- Support piping design tasks including layout, routing, and basic sizing with Piping & Pressure Systems teams.
- Perform process calculations such as flow rate and pressure drop within Mechanical group.
- Conduct field data collection to support scoping across HVAC, utility, and piping equipment.
Connaissances
Formation
Outils
Description du poste
GIG - General / , Industrial & Govt
Mesa Associates, Inc. is a woman/minority-owned full-service engineering, procurement, and project management firm covering power, defense, aerospace, industrial, commercial, and municipal entities. We specialize in power and delivery services. We have been in the top 10 of EC&M's Top 40 Electrical Design Firms since 2012. With over 1,000 associates, we are big enough to perform, but small enough to care!
Mesa Associates is seeking a Senior Mechanical Engineer to serve as a true generalist across our Mechanical Engineering department, delivering projects for our , Industrial, and Government clients. This is a hands-on technical role: you will personally design HVAC systems, plant utilities, and piping scopes as project needs shift, without being boxed into a single specialty. You'll serve as a go-to resource who advises and mentors mid-career and junior staff across whatever scope you're supporting. We're looking for someone versatile, approachable, and just as comfortable picking up a new type of scope as sticking with a familiar one.
Technical Expertise: HVAC, Utility Systems & Piping
- Expert, hands-on knowledge of industrial HVAC design, including heating, ventilation, air conditioning, exhaust, and specialized environmental control for equipment rooms, control rooms, switchgear rooms, and process spaces
- Demonstrated ability to perform heating and cooling load calculations, size ductwork and equipment, and select chillers, air handling units (AHUs), fans, and dampers
- Strong working knowledge of ASHRAE standards, the International Mechanical Code (IMC), and related codes as applied to industrial and power facilities
- Hands-on knowledge of mechanical design codes including ASME, ANSI, API, and NFPA, with a strong understanding of ASME B31.1/B31.3 piping codes and ASME Boiler & Pressure Vessel Code Section VIII, API 650, and API 620
- Experience performing detailed stress analysis of piping systems, custom piping components, or fabrication assemblies using AutoPIPE and/or CAESAR II
- Proficient with Plant3D, AutoCAD, MicroStation, and SolidWorks across HVAC, utility, and piping layouts, routing, and equipment coordination
- Strong knowledge of power types, including coal, gas, and hydro, and how HVAC, utility, and piping systems support each
- Working knowledge of utility systems, the supporting infrastructure that keeps plant equipment running (as distinct from HVAC or main process equipment), including:
- Compressed air systems: supply instrument air and service air for pneumatic tools, instrumentation, and control valves
- Cooling water systems: raw and closed-loop cooling water and cooling towers that remove heat from process equipment, condensers, and bearings
- Potable water systems: provide clean water supply for facility and personnel use
- Hydraulic systems: deliver pressurized fluid power for valve actuators, cranes, and similar equipment
- Lubricating systems: supply oil or lubricant to pumps, turbines, compressors, and other rotating equipment to reduce wear
- Personally perform HVAC load calculations, equipment selection, and ductwork design for assigned projects, from concept through issued-for-construction
- Support the design of utility systems as needed, including compressed air, cooling water, cooling towers, potable water, hydraulic, and lubricating systems
- Support piping design tasks as needed, including layout, routing, and basic sizing, working alongside engineers working on Piping & Pressure Systems
- Perform process calculations, such as flow rate and pressure drop, directly within the Mechanical Engineering group; Mesa does not have a separate Process Engineering function, so this work sits with Mechanical
- Perform walkdowns and collect detailed field data across HVAC, utility, and piping equipment to support scoping
- Move fluidly between HVAC, utility, and p pigging assignments based on department and project needs
- Own deliverables directly across HVAC, utility, and piping-support work, in addition to reviewing and advising on the work of others
- Work alongside junior and mid-career engineers, offering input, coaching, and mentorship across whichever scope you're supporting
- Coordinate directly with other disciplines, including civil/structural, electrical, and controls, on integration-heavy scopes
- Support proposal development and client-facing technical discussions across HVAC, utility, and piping scopes
- Bring an open-door, team-oriented, versatile attitude that makes it easy for department engineers to ask questions, regardless of the topic
- Bachelor's degree in Mechanical Engineering and PE License (required)
- 10+ years of experience with genuine breadth across HVAC, utility systems, and piping design, ideally in power , industrial, or facilities environments
- Demonstrated, current hands-on design and calculation experience across multiple mechanical disciplines, not solely project oversight
- Comfortable moving between different types of mechanical scopes as project needs shift, without needing to specialize in just one
- A track record of coaching and developing engineering staff
- Strong written and verbal communication skills with internal and external clients
- Well organized, curious, and quick to spot issues and offer practical solutions
- A collaborative, team-first mindset and a genuine willingness to roll up your sleeves and help wherever needed
- Paid Time Off
- Holiday Pay – 10 Days Annually
- Group Medical/Dental Insurance
- Life Insurance (Company Paid)
- Insurance (Company Paid)
- 401(K) Retirement Savings plan
- 401(K) Matching Contribution
- Section 125/Cafeteria Plan
- Long Term Care Insurance
- Tuition Reimbursement
- Fitness Center Reimbursement
- Annual Performance Bonus
- 9/80 Work Schedule Option
- FSA and HSA Options
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