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Added 2 mins ago
Engineer 1/2 Process Development
Illumina US Manufacturing Operations, Inc.
United States
As a Process development engineer , you will collaborate with field and MFG teams to bring the voice of the customer into the factory and improve MFG & field processes. You will provide…
Added 3 mins ago
NR
Materials Engineer
Nuclear Regulatory Commission
Rockville, MD
- $143,913 to $187,093 USD / year
This position is located in the Office of Nuclear Reactor Regulation, Division of Engineering, Materials Engineering Branch 2.
Added 6 mins ago
PC
ICT Consultant | RCDD Certified | $110K–$160K | Charlotte, NC
Purple Cow Recruiting
Charlotte, NC
- $15,100 to $160,000 USD / year
Drive the design process from concept through completion, supporting project quality, schedules, and budgets
Added 6 mins ago
AN
INDUSTRIAL HYGIENIST (Title 32)
Air National Guard Units
East Granby, CT
- $84,260 to $109,545 USD / year
…administer the installation-wide Industrial Hygiene/Bioenvironmental Engineering Program (IH/BEE), which includes occupational health/industrial hygiene, radiation safety, and environmental…
Added 6 mins ago
UC
Supervisory General Engineer
U.S. Coast Guard
Norfolk County, VA
- $108,019 to $140,426 USD / year
- Successful completion of a curriculum leading to a bachelor's degree in engineering technology or in an appropriate professional field (e.g., physics, chemistry, architecture, computer…
Added 6 mins ago
Detection Engineer
Sentar
Quantico, VA
…convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your…
Added 9 mins ago
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Senior Engineer, SSC/SW
Space Systems Command
Chantilly, VA
- $142,488 to $195,200 USD / year
The ideal candidate is an engineering authority in space and missile systems possessing an advanced degree in science, technology, engineering, or mathematics and extensive full-lifecycle…
Added 9 mins ago
VH
Biomedical Engineer
Veterans Health Administration
Salisbury, NC
- $60,478 to $141,512 USD / year
…complex tasks. Employees complete technical assignments in the engineering field, under the direction of a senior biomedical engineer and will be required to rotate through, and participate…
Added 11 mins ago
NS
ENGINEER/SCIENTIST
Naval Sea Systems Command
Crane, IN
- $125,776 to $192,331 USD / year
…experience must demonstrate the following: as a professional engineer or scientist, overseeing planning and execution of technical engineering or scientific projects involving design,…
Added 14 mins ago
VH
Biomedical Engineer
Veterans Health Administration
Indianapolis, IN
- $116,537 to $151,502 USD / year
The Biomedical Engineer for Healthcare Technology Management Service at the Indianapolis VA Medical Center, provides biomedical engineering services to a complex, technically sophisticated,…
Added 15 mins ago
AI Automation Architect - Manufacturing and MES processes- Remote
Cognizant
Juneau, AK
…fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products…
Added 15 mins ago
Mainframe Technical Engineer
Highmark Health
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…involved in every aspect as a part of the Mainframe technical process from idea generation, analysis, design, build, and support using various technologies and design…
Added 15 mins ago
Civil Engineer - UMIAQ Design
UIC Government Services and the Bowhead Family of Companies
Anchorage, AK
UMIAQ Design is seeking a registered Civil Engineer to support a diverse portfolio of challenging projects throughout both rural and urban Alaska. With several recent large project awards…
Added 15 mins ago
Software Engineer, Infrastructure - Central Growth
Meta
Juneau, AK
Software Engineer, Infrastructure - Central Growth Responsibilities:
Added 16 mins ago
Advanced Lead Supplier Quality Engineer - Composites
GE Aerospace
Anchorage, AK
The Supplier Quality Engineer for Polymer Matrix Composites is an individual who can apply knowledge of RCCA and/or problem solving to lead supplier quality improvement of complex cross…
Added 16 mins ago
Software Engineer
Teradata
Juneau, AK
This position is for a Software Engineer in the POD Services team within the TD Factory team. The position involves development, integration, functional and performance testing, and fault…
Added 16 mins ago
Software Engineer II
Amentum
Juneau, AK
Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges…
Added 16 mins ago
IC
Lab Engineer
Intel Corporation
OR
- $85,950 to $166,060 USD / year
Intel Foundry is seeking a detail-oriented and highly motivated Lab Engineer to join our Advanced Design Lab team. In this role, you will support the development, operation, and…
Added 16 mins ago
IC
RF Lab Engineer
Intel Corporation
OR
- $117,620 to $227,270 USD / year
As a RF Lab Engineer, you will play a pivotal role in driving the success and efficiency of our lab operations. You will be responsible for ensuring lab preparedness, improving…
Added 17 mins ago
UA
SUPERVISORY CONTRACT SPECIALIST
U.S. Army Corps of Engineers
Seattle, WA
- $119,630 to $155,521 USD / year
…Officer's Representatives, and similar positions in the contracting process. | Reviews and interprets governing regulations and policies in response to inquiries. | Advises Contracting…
Added 20 mins ago
AM
FIRE CHIEF
Air Mobility Command
McConnell AFB, KS
- $106,437 to $138,370 USD / year
…goals and objectives that integrate organization and Civil Engineering objectives. Establishes, revises, or reviews policies, procedures, mission objectives, and organization design for the…
Added 23 mins ago
FA
General Engineer - NIPM
Federal Aviation Administration
Lenexa, KS
- $113,603 to $176,120 USD / year
1. Professional registration or licensure -- Current registration as an Engineer Intern (EI), Engineer in Training (EIT)1 , or licensure as a Professional Engineer (PE) by any State, the…
Added 23 mins ago
UA
INTERDISCIPLINARY (GEOTECH)
U.S. Army Corps of Engineers
Norfolk, VA
- $108,019 to $140,426 USD / year
1. Professional registration or licensure - Current registration as an Engineer Intern (EI), Engineer in Training (EIT), or licensure as a Professional Engineer (PE) by any State, the…
Added 24 mins ago
Field System Technician
Bechtel Corporation
Millersport, OH
Assist the EPC Automation Lead in coordinating with the Project Field Engineer, project IS&T Lead, and other automation leads (procurement and project controls, commissioning, etc.), as…
Added 25 mins ago
AO
Senior Construction Inspector
Architect of the Capitol
Washington, DC
- $102,415 to $133,142 USD / year
This position is located in the Architect of the Capitol, Office of the Chief Engineer, Construction Management Division, Construction Management Branch. The selectee will be responsible…

Mazzetti, INC.

Mechanical Designer/Engineer

United States

$76,000 - $139,000 per year

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Job details

Pay: $76,000 - $139,000 per year
Experience: 4–8 years of mechanical engineering or mechanical design experience within the AEC consulting industry.
Posting language: English
Posted: Nov 4, 2026

Original job description

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Job Type

Full-time

Description

Who We Are Mazzetti is a global engineering design and consulting firm with a rich history of delivering forward-thinking solutions primarily for Healthcare and Science and Technology facilities and infrastructure. As an employee-owned benefit corporation, we are committed to bending the climate curve™. Though our story began with a small team of MEP engineers, 60 years later, we’ve grown to 200+ people in 12 locations across the U.S., India, and Africa. We are proud to partner with clients, addressing a spectrum of needs, mindful of their environmental footprint, resiliency, and economic and functional interests.

Our Vision: Creating healthier, enduring environments Our Mission: Bending the climate curve™ Our Core Values: Earn Trust, Team First, Inspire

We proudly hold the JUST Label, an affirmation of our values-driven culture and commitment to environmental and social impact.

Job Summary Mazzetti is seeking a Mechanical Designer/Engineer based in the greater St. Louis area to join our engineering practice and contribute fully to the analysis, design, and documentation of mechanical/HVAC systems for healthcare and other mission critical projects. Engineers in this role take ownership of system design on small to mid-size projects, working collaboratively with senior engineers, architects, and multidisciplinary teams, with the opportunity to grow into more complex projects and client and project management responsibilities over time.

You will be part of Mazzetti’s Mechanical, Electrical, and Plumbing (MEP) Consulting Engineering Practice- a multidisciplinary team dedicated to designing high-performance, resilient, and sustainable solutions for the built environment. With a strong emphasis on healthcare and infrastructure projects, our practice blends technical rigor with a collaborative, client-centered approach to deliver exceptional, future-ready outcomes.

Core Responsibilities Mechanical Design & Engineering

Design HVAC and mechanical building systems for commercial, institutional, healthcare, and other complex facilities.
Perform engineering analyses, calculations, equipment selections, and system studies.
Prepare construction documents, including plans, specifications, schedules, and technical documentation.
Coordinate mechanical systems with architectural, structural, electrical, plumbing, and specialty disciplines.
Review engineering drawings and specifications for quality, constructability, code compliance, and technical accuracy.
Apply applicable building codes, industry standards, and Mazzetti quality expectations throughout project delivery.

Project Delivery

Collaborate with project managers, architects, engineers, contractors, vendors, and clients throughout all phases of project delivery.
Participate in project planning, multidisciplinary coordination meetings, and design reviews.
Support construction administration by responding to RFIs, reviewing submittals, participating in site visits, and resolving technical issues during construction.
Contribute to successful project delivery by supporting schedule, quality, and client expectations.

Team Collaboration

Work closely with multidisciplinary engineering teams across Mazzetti offices.
Share technical knowledge and collaborate with engineers and designers throughout the organization.
Participate in quality control reviews and continuous improvement initiatives.
Mentor junior staff as experience allows.

Work Location: This is a hybrid position based in the St. Louis, Missouri area. We ask that you work from our St. Louis office approximately two days per week, with flexibility in scheduling, along with client and project site visits as needed.

Travel Requirements: Approximately 10–15% travel, primarily within the St. Louis, Missouri area based on project assignments.

Requirements

Education & Experience

Bachelor’s degree in Mechanical Engineering or a related engineering discipline, or equivalent mechanical design experience.
4–8 years of mechanical engineering or mechanical design experience within the AEC consulting industry.
Demonstrated experience designing HVAC and mechanical building systems, including load calculations, equipment selections, and duct and piping design.
Experience coordinating with multidisciplinary engineering teams.
Experience preparing construction documents and supporting projects through construction.
Plumbing or fire protection design experience is beneficial but not required

Technical Expertise

Strong knowledge of HVAC and mechanical building systems.
Thorough understanding of applicable building codes and industry standards.
Proficiency with Revit, AutoCAD, Bluebeam, and mechanical load calculation software.
Experience preparing engineering calculations, equipment selections, specifications, and construction documentation.
Familiarity with sustainable, resilient, and high-performance building design principles.
Strong written, verbal, and presentation skills.

Licenses & Certifications

Engineer-in-Training (EIT) certification or Professional Engineer (PE) license preferred.

What We Offer At Mazzetti, we believe in supporting our employees with competitive compensation and a dynamic benefits package.

Compensation: The typical salary range for a Mechanical Designer / Engineer in the St. Louis, MO area is $76,000 - $139,000. We are committed to equitable pay and will evaluate final compensation based on relevant experience and skills in alignment with internal equity and market data.

Comprehensive Benefits:

Medical, dental, vision, flexible spending accounts (FSA), health savings account (HSA), company paid short-term disability (STD), long-term disability (LTD), and life insurance.
Participation in our company-funded Employee Stock Ownership Plan (ESOP).
Performance based bonuses.
401(k) with employer matching.

Work-Life Balance:

Generous PTO and 9 paid holidays.
Flexible work options: fully remote, hybrid, or in-office options, with flexible hours (depending on the role)
Wellness program with live and on-demand fitness classes, mental health resources, wellness challenges, and incentives for healthy habits

Family Support: Paid parental leave and EAP Services.

Professional Development:

Funding for memberships, licenses, certifications, and tuition reimbursement.
Mentorship opportunities to help you grow in your career.

Home Office Support:

Reimbursement for cellphone and internet costs for qualifying employees.
Home office package and additional reimbursement opportunities for work-related expenses.

Community Engagement:

Paid volunteer time-off annually.
Employee engagement programs and Employee Resource Groups (ERGs).
Gain hands-on experience furthering Mazzetti’s mission of making environments better through the Sextant Foundation. Learn more here.

Mazzetti is an Equal Opportunity Employer. We embrace diversity and value individuals from all backgrounds and do not discriminate based on race, color, religion, gender identity or expression, sexual orientation, national origin, genetics, disability status, age, or any other characteristic protected by federal, state or local law. We are committed to and promote an inclusive environment where everyone is respected and empowered to contribute. If you require accommodations at any stage of the hiring process, please let us know. Join us in shaping a brighter future through engineering and innovation.

Salary Description

$76,000 - $139,000 per year

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More about this job

Skills

Documentation
Building systems monitoring technology
Project management
Plumbing
HVAC
Mechanical systems
Regulatory compliance
Building codes
Collaborate with engineers
Quality control
Process improvement
Mechanical engineering
Autodesk Revit
Autodesk AutoCAD
Bluebeam
Design buildings
Presentation skills
EIT
P.Eng.

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