> Markdown version of [/jobs/ext/3949640-mechanical-engineer-4-active-top-secret](https://www.wearedevelopers.com/jobs/ext/3949640-mechanical-engineer-4-active-top-secret). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mechanical Engineer 4 - Active Top Secret - **Company:** M.C. Dean, Inc. - **Location:** Alexandria, VA, United States - **Experience:** Expert - **Salary:** $187,680.0 - **Contract:** Permanent contract - **Skills:** AutoCAD, Autodesk Revit, Microsoft Project, Software Tools, Information Technology - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/mechanical-engineer-4-active-top-secret-alexandria-va--70565efc-6d5d-4e8e-ac9d-41e2e7744439 ## About the Role 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 Top Secret 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., * Bachelor's degree in mechanical engineering, or a related engineering discipline * 7+ 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 Top Secret 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 * 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 ## Description 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