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Mechanical Engineer with Security Clearance

Job in McLean, Fairfax County, Virginia, USA
Listing for: Markon
Full Time position
Listed on 2026-08-12
Job specializations:
  • Engineering
    Mechanical Engineer, Building Services Engineer
Job Description & How to Apply Below
Markon is building a talent pool of Mechanical Engineers to support future Intelligence Community facility and infrastructure projects. This pipeline opportunity is intended to identify qualified candidates to provide mechanical engineering expertise throughout the planning, design, and execution of construction and infrastructure efforts. Selected candidates will be considered for future openings supporting safe, compliant, reliable, and mission-ready facilities aligned to customer priorities.

Responsibilities
* Support facility and infrastructure projects by performing mechanical engineering analyses, evaluating design needs, and developing practical engineering recommendations.
* Manage and coordinate mechanical engineering efforts from planning through completion, including reviewing drawings, specifications, calculations, and technical documentation for accuracy, constructability, and compliance.
* Recommend design modifications and engineering solutions to address technical issues, site constraints, and evolving project requirements.
* Ensure mechanical systems and designs align with applicable building codes, local ordinances, federal regulations, engineering standards, and customer requirements.
* Provide technical expertise across HVAC, plumbing, building automation, energy management, and related facility mechanical systems.
* Collaborate with customers, architects, engineers, contractors, and other stakeholders while preparing clear technical reports, assessments, recommendations, and presentations.
* Support multiple concurrent projects and priorities in a fast-paced, mission-focused environment. Qualifications
* U.S. citizenship required

* Ability to obtain and maintain a TS/SCI clearance with Polygraph

* Bachelor's degree in Mechanical Engineering or a related engineering discipline

* 5+ years of progressive mechanical engineering experience

* Experience performing technical engineering analyses for facility, infrastructure, or construction projects

* Demonstrated experience managing, coordinating, and executing mechanical engineering efforts from planning through completion

* Experience evaluating mechanical designs and recommending modifications based on project requirements and site conditions

* Strong knowledge of mechanical engineering principles, building codes, industry standards, local ordinances, and applicable federal regulations

* Experience collaborating with customers and multidisciplinary project teams

* Ability to manage multiple priorities and stakeholders in a fast-paced project environment

* Strong analytical, problem-solving, written, and verbal communication skills
Desired
* Professional Engineer (PE) license

* Experience with ICD 705 construction standards and requirements

* Proficiency with AutoCAD or comparable engineering design software

* Experience with HVAC, plumbing, building automation, central utility plants, energy management, or related facility mechanical systems

* Experience supporting federal government or Intelligence Community facilities and infrastructure

* Familiarity with applicable mechanical and building standards, including ASHRAE and NFPA standards

* Proficiency with Microsoft Office and developing professional technical presentations Salary Range USD $ - USD $ /Yr. The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Overview Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions. At Markon, we don't just offer jobs - we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated.

As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work. Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.

Markon values people and the tremendous impact each individual can make - which is why we're consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation's most important challenges, surrounded by colleagues who help you…
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