Mechanical Project Engineer | St. Louis, MO

IMEG; St. Louis (MO); Hybrid; USD 90,000 - 120,000; Full time

Benefits offered by this job

ESOP

Innovation programs

License exam support

Dress for Your Day

Generous PTO

Strong health benefits

Job summary

IMEG in St. Louis, MO, seeks a Mechanical Project Engineer to lead HVAC, plumbing and fire protection design for mid-complex projects. You will mentor teams, coordinate across disciplines, and support larger projects with senior staff while focusing on energy-efficient design in healthcare-oriented MEP work.

You will manage budgeting, scheduling, and client communication, aligning with IMEG standards and safety practices. A PE license and 5–6 years of experience are preferred for this role.

Qualifications

• Bachelor of Science (BS) Degree in Mechanical Engineering, or equivalent, required
• Professional Engineer (PE) License required
• 5 years of experience minimum, 6 preferred, in the building design consulting industry

Responsibilities

• Lead design efforts for HVAC, plumbing, and fire protection systems for low to moderate complexity projects.
• Create detailed designs, specifications, and calculations per code and IMEG standards.
• Collaborate with clients to understand needs and gather project requirements.
• Manage project planning, budgeting, and scheduling to meet deadlines.
• Document design decisions and monitor progress, fees and percent complete.
• Provide in-process design reviews and implement IMEG quality control processes.

Skills

HVAC design

Thermodynamics

Heat transfer

Fluid mechanics

Communication

Mentoring

Team collaboration

Problem solving

Attention to detail

MS Office

Education

BS in Mechanical Engineering

PE License

Tools

HVAC load calculation software

BIM software

MS Office

Job description

100% Employee-Owned | Big-firm resources, local-team relationships, ONE IMEG culture

IMEG is hiring a Mechanical Project Engineer in St. Louis, MO, to lead design efforts as a project manager or lead engineer for low to moderate complexity projects and support the delivery of larger and high complexity work with senior staff. This role focuses on engineering analysis, design, and implementation oversight of mechanical systems for the vertical building industry.

You will work within project budgets, mentor and collaborate with cross-functional teams, and help deliver practical engineering solutions for clients. Supporting a healthcare-focused MEP team, this role contributes to coordinated building systems work while advancing high-performance, energy-efficient design aligned with MEP2050 and AIA2030.

At a Glance

• Location: St. Louis, MO
• Discipline: Mechanical
• Markets: Healthcare; MEP
• Ownership: 100% employee-owned (ESOP)
• Travel: Up to 15%
• Work Schedule: Full-time hybrid
• Sponsorship: Not available

What You'll Do

• Lead design efforts for the analysis of HVAC, plumbing, and fire protection systems for low to moderate complexity projects.
• Create detailed designs, specifications, and calculations using engineering software and tools according to code requirements and IMEG standards.
• Work with clients to understand needs, gather project requirements, communicate technical information, and maintain professional relationships.
• Support consulting project execution by leading project planning, budgeting, and scheduling tasks to meet deadlines and objectives.
• Document design decisions and client instructions while monitoring project design progress related to percent complete and fee expended.
• Analyze engineering problems and propose practical, efficient solutions in collaboration with senior engineers and consultants.
• Provide in-process design reviews of HVAC, plumbing, and fire protection system design, calculations, and specifications, and implement IMEG quality control processes.
• Stay up to date with industry trends, emerging technologies, and best practices in mechanical engineering, and contribute to research, development, and innovation efforts within IMEG.
• Prioritize safety in all aspects of engineering work and identify and mitigate potential safety risks associated with mechanical systems.
• Collaborate with multidisciplinary teams, identify potential project problems and seek advice from the Project Manager, and oversee projects through bidding and construction administration phase.
• Train, mentor, and collaborate with cross-functional teams to meet project goals and client expectations.

Education

• Bachelor of Science (BS) Degree in Mechanical Engineering, or equivalent, required

Experience

• Professional Engineer (PE) License required
• 5 years of experience minimum required, 6 preferred, in the building design consulting industry

Required Skills/Abilities

• Proficiency in design techniques, tools, and concepts involved in the production of technical plans and specifications
• Strong technical and analytical skills including proficiency of principles in thermodynamics, psychrometrics, heat transfer and fluid mechanics relating to mechanical design in HVAC, plumbing and fire protection systems
• Strong training and mentoring skills
• Proficiency of industry standard engineering software and tools including HVAC load calculation software
• Excellent communication and interpersonal skills
• Ability to work collaboratively in a team environment
• Attention to detail and problem-solving skills
• Eagerness to adapt to new challenges
• Proficiency in the use of BIM software
• Proficient with MS Office Suite including but not limited to Word, Excel, and Outlook
• Ability to clearly communicate in both oral and written communication to individuals or groups
• Ability to travel up to 15% with occasional overnight stays

About The Team

• The team is healthcare-led, with strong activity in acute care, outpatient, MOB, children's, academic teaching, and community hospital work.
• Work frequently includes full MEP scopes with fire protection, telecom, security, AV, and some structural and civil support.
• The portfolio points to particular strength in imaging, emergency, sterile, lab, and coordinated hospital support spaces.
• Recent work includes Mid-Scale Peptide Synthesis, Basic Design Phase, Industrial; Equipment Destructive Cleaning Modifications, Industrial; and Apollo 2 Synthesis Process Piping Design Support, Industrial.

Why IMEG

• Employee ownership (ESOP), fully vested at all times, with a 3% to 6% company contribution, plus year-end profit sharing
• IDEA Program: a firm-wide innovation accelerator where employees across every discipline develop and scale new tools, from VR and AI to carbon-reduction technology
• PE, SE, and other license exam prep and support, with a clear path from EIT to PE
• Dress for Your Day flexibility (wear what fits your day)
• Generous time off, including 6 paid holidays and 3 additional floating holidays
• Medical, dental, and vision coverage starting day one, with preventive care at 100%, a $50/month wellness credit, and a Calm subscription
• MEG, our in-house AI platform, helps employees find information and build agents that streamline project workflows and calculations

IMEG, an employee-owned corporation, is committed to investing in employees’ futures through professional development programs and opportunities for career advancement. We offer a comprehensive benefits package including generous PTO, flexible schedule, and assistance with tuition reimbursement. Additionally, employees are eligible to enroll in health, dental, vision, and life insurance on their first day of employment.

All applicants have the right to request access, correction, and deletion of their personal information from our system. In order to make a request, please email [e-mail].

IMEG is committed to providing equal employment opportunities in all employment practices, without regard to race, color, religion, sex (including sexual orientation or gender identity), gender, national origin, disability, age, genetic information (including family medical history), parental status (including pregnancy, childbirth or related medical conditions including lactation), ethnic origin, hair type (including hairstyle or hair texture), citizenship status, marital status, military service, veteran's status, political affiliation, non-merit-based factors, or any other characteristic protected by law. In accordance with antidiscrimination law, it is the purpose of this policy to put into effect these principles and mandates. IMEG prohibits discrimination and harassment of any type. IMEG conforms to the spirit as well as to the letter of all applicable laws and regulations.