Mechanical Engineer 5 - Active TS/SCI

M.C. Dean, Inc.; Alexandria, Northern (VA, KY); Hybrid; USD 150,000 - 188,000; Full time

Benefits offered by this job

Competitive salary

Medical, dental, vision coverage

401k Retirement Plan

Job summary

M.C. Dean, Inc. is seeking a seasoned Mechanical Engineer to lead design, bid, and execution of mechanical systems for facilities operations and maintenance. The role requires coordinating with contractors, field teams, and stakeholders from concept through completion.

Applicants should have a bachelor’s degree in mechanical engineering (or related discipline) and 10+ years in mechanical design or facilities engineering, with active TS/SCI clearance to start and FE exam preferred.

Qualifications

• Bachelor’s degree in mechanical engineering or related discipline.
• 10+ years of progressive experience in mechanical design, project execution, or facilities engineering.
• Active TS/SCI clearance to start; eligible for polygraph.
• FE exam passed (NCEES) preferred.
• Proficiency in HVAC, plumbing, mechanical systems, and construction management.

Responsibilities

• Design and review mechanical system designs (HVAC, piping, plumbing) and layouts.
• Prepare scopes of work, technical specs, and bid packages.
• Provide technical oversight during construction, repair, or retrofit projects.
• Coordinate with contractors, field technicians, and stakeholders; review submittals and punch lists.

Skills

10+ years experience

HVAC systems

Mechanical design

Coordination & documentation

Education

Bachelor’s degree in mechanical engineering

Related engineering discipline

Tools

AutoCAD

Revit

MS Project

Carrier HAP

Trane Trace

Job description

Overview

M.C. Deanis Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation’s most recognizable mission critical facilities, secure environments, complex infrastructure, and global enterprises. The company’s capabilities include electrical, electronic security, telecommunications, life safety, automation and controls, audio visual, and IT systems. M.C. Dean is headquartered in Tysons, Virginia, and employs more than 7,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms essential for long-term system sustainability.

Why join M.C. Dean?Our people are inspired by the way engineering and innovation enhance customer outcomes, improve lives, and change the world for the better. We are driven by our core values of agility, expertise, and trust.

Clearance Requirement:Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active TS/SCI clearance required to start. Candidates must be willing and able to obtain a Polygraph as a condition of continued employment.

Disclaimer:
Applicant must successfully meet all customer-imposed requirements. Such requirements may include, but are not limited to, completion of a customer-provided weapons qualification program, successful completion of customer-directed medical screening, and fulfillment of any additional training, certifications, or evaluations as required by the customer.

Responsibilities

We are seeking a skilled Mechanical Engineer to lead and support design, bid, and execution of mechanical systems work within a facilities operations and maintenance environment. This role requires technical expertise, field coordination, and project ownership from concept through completion.

• Design Work:
  • Develop and review mechanical system designs (HVAC, piping, plumbing, and related infrastructure)
  • Perform load calculations, equipment sizing, and system layouts using AutoCAD/Revit and relevant software
  • Ensure all designs comply with applicable codes, standards, and sustainability goals
• Bid Work:
  • Create scopes of work, technical specifications, and detailed bid packages
  • Evaluate contractor proposals and assist with bid selection and procurement strategy
  • Participate in pre-bid meetings and respond to RFIs as needed
• Run Work (Execution & Oversight):
  • Provide technical oversight during construction, repair, or retrofit projects
  • Coordinate closely with contractors, field technicians, and stakeholders
  • Perform site inspections, submittal reviews, punch lists, and ensure project quality and compliance
  • Monitor schedules and budgets, resolving issues to maintain project delivery standards
• Facilities Support:
  • Provide engineering support for ongoing operations, preventive maintenance planning, and system troubleshooting
  • Collaborate with facilities managers and maintenance teams to identify system upgrades or lifecycle replacements
  • Maintain as-built documentation and contribute to asset management systems

Qualifications

• Bachelor’s degree in mechanical engineering, or arelated engineering discipline

• 10+ years of progressive experience in mechanical design, project execution, or facilities engineering

• Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active TS/SCI clearance required to start. Candidates must be willing and able to obtain a Polygraph as a condition of continued employment.
• Must have passed the NCEES Fundamentals of Engineering (FE) exam, highly preferred.
• Proficiency in HVAC, plumbing, mechanical systems, and construction management
• Experience with AutoCAD, Revit, MS Project, and engineering software (e.g., Carrier HAP, Trane Trace)
• Familiarity with ASHRAE standards, IBC, and local building codes
• Strong communication, coordination, and documentation skills

Desired / Advantageous Qualifications

• Work within government, commercial, healthcare, or mission-critical facilities
• Experience managing subcontractors and vendors
• Understanding of energy efficiency, commissioning, and sustainability practices

We offer an excellent benefits package including:

• A competitive salary
• Medical, dental, vision, life, and disability insurance
• Paid time off
• Tuition reimbursement
• 401k Retirement Plan
• Military Reserve pay offset
• Paid maternity leave

Abilities

• Exposure to computer screens for an extended period of time.

• Sitting for extended periods of time.

• Reach by extending hands or arms in any direction.

• Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.

• Listen to and understand information and ideas presented through spoken words and sentences.

• Communicate information and ideas in speaking so others will understand.

• Read and understand information and ideas presented in writing.

• Apply general rules to specific problems to produce answers that make sense.

• Identify and understand the speech of another person.

Pay Range

USD $150,080.00 - USD $187,600.00 /Yr.