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We are seeking a highly capable and well‑rounded MEP Project Engineer to support the planning, coordination, and execution of mechanical, electrical, and plumbing systems on commercial construction projects in the Tysons region. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

YEAR

M.C. Dean is 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, instrumentation and control, and command and control systems.
M.C. Dean is headquartered in Tysons, Virginia and employs more than 4,000 professionals engineers,technicians, and staff who deploy worldwide automated, secure, and resilient power and technology systems; and deliver the management platforms essential for long-term system sustainability.

M.C. Dean Inc

Project Engineer (MEP) - Baltimore, MD

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ADAPTED_NOW

Beyond the basics, we provide additional perks such as tuition reimbursement for education and certifications, employee discount programs (including hotels and vendor products), gym memberships, and an Employee Assistance Program offering a wide range of support services. We celebrate and empower our talented employees, a commitment reflected in our recognition by the Washington Business Journal as a “ Best Place to Work” multiple times, and our #3 ranking on the 2026 Corporate Diversity Index.

Donohoe Companies Inc., The

Building Engineer

Donohoe Jobs

Project Engineer (MEP) - DMV

Perform telecommunications infrastructure installations including patch panels, fiber enclosures, racks, cable trays, ladder racks, and related hardware. Final compensation will be determined based on factors including years of relevant experience, active security clearance level, certifications, technical skillset, contract requirements, and overall qualifications.

AGE Solutions

Field Engineer I

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Understanding of IPv6 to include configuration and common notation/nomenclature Proficiency in Python and Ansible for network automation Familiarity with Cisco SD-WAN, Cisco Application Centric Infrastructure (ACI) Experience working in air-gapped and/or classified network environments (e.g., SIPRNet) is highly desirable· Knowledge of Air Force, Pentagon, and/or AFNCR · Experienced working at the Pentagon, Joint Base Andrews (JBA), and Joint Base Anacostia-Bolling (JBAB). Required Technical Skills: Must possess an active DoD Secret clearance Bachelor's degree in computer science, Information Technology, Computer/Electrical Engineering, or equivalent technical military/civilian experience (typically 5+ years of hands-on network engineering experience in secure environments).

Sunayu

Data Center Engineer - Secret

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. 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.

Mechanical Engineer 4 - Active Top Secret

FULL_TIME

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Support planning for and participate in Pre-Installation Testing and Checkout (PITCO) processes including system programming, integration testing, and equipment build outs.

M.C. Dean, Inc

Design Engineer 1 - Washington, DC

[AW]-iCims

With a genesis in construction and a skilled team of multidiscipline engineers and project management professionals, the company delivers best-in-class infrastructure solutions, including design, asset integrity management, feasibility studies, surveys, constructability reviews, turnkey delivery services, and more. Position may be Hybrid: Local residents of Richmond, VA encouraged to apply* Responsibilities Collaborate with project managers, engineers, designers, and drafters to deliver the most cost effective and highest quality infrastructure solutions.

MasTec Inc

Power Distribution Designer/Engineer

The Commissioning Engineer plays a key role in documenting and verifying testing activities, uploading reports into commissioning software, and ensuring that all commissioning milestones are completed accurately and on schedule. This role is responsible for tracking inspections, maintaining accurate documentation, and coordinating with technicians, subcontractors, vendors, and testing agencies.

Helix Electric is a full service electrical contractor and an industry leader specializing in design-build and highly complex electrical projects throughout the United States. We have a strong reputation, an extensive network of customer relationships, and have consistently provided cutting-edge product innovations. 
The company was founded in 1985 and has since delivered significant, high-profile projects in virtually every market segment, making it one of the largest, most experienced and successful electrical contracting companies in the nation. Our company vision and dedication to a team-oriented and employee-empowered business approach defines the unique character of the company. The Helix team consists of notably skilled experts in every aspect of electrical design and construction and is guided by the founding principles of the company: integrity, quality, safety, collaboration and a commitment to ultimate client satisfaction through competitive performance, consistency and dedication.

Helix Electric Inc

Commissioning Engineer

Develop designs and architectural changes to infrastructure environments including physical/logical drawings, engineering design plans, implementation plans, transition plans, test plans, and failover plans. Qualifications: Clearance/Citizen Type: 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 Secret Clearance is required.

IT Systems Engineer 3 - Falls Church, VA

Please check with the hiring manager for confirmation.); paid parental leave, adoption and surrogacy expense reimbursement, fertility benefits; learning and development opportunities; Lifestyle Spending Account; pet adoption assistance and insurance; pre-tax transportation benefits with a generous employer subsidy; employer-paid life insurance and disability benefit; and a variety of National Geographic discounts and perks. On-Site staff shifts (spread over seven days a week and 24 hours a day, including holidays) are scheduled by their supervisors and determined by team needs and may be adjusted based on cyclical work cycles and ebbs and flows of work throughout the year.

HOUR

National Geographic Society

Operating Engineer

As a Maintenance Engineer with Hines, you will maintain basic operation and maintenance of all building equipment and systems by routinely reviewing operating conditions and established programs with Supervisor to understand and resolve any abnormal operating issues. Responsibilities include, but are not limited to: Perform preventive maintenance and repairs on all mechanical, electrical, plumbing and HVAC systems including, but not limited to pumps, chillers, boilers, air compressors and air handling units.

Hines Interests Limited Partnership

Maintenance Engineer

Your expertise will be vital in realizing robust, scalable, and cost-effective solutions that enhance the performance of Helsing''s UAV systems, directly supporting our mission to provide advanced defense capabilities. Produce 3D and 2D documentation using SolidWorks or similar CAD/PLM tools, ensuring proper form, fit, and function of components by using analytical and simulation tools.

Helsing GmbH

Senior Design Engineer

The Commissioning Engineer team is responsible for performing final testing, startup, and commissioning of low and medium voltage electrical distribution equipment, including breakers, transformers, switches, switchgear, relays, and motor control centers, as well as other electrical apparatus both in the field and in a manufacturing environment. Assists more experienced Commissioning Specialists and Managers in coordinating, executing, and reviewing MEP commissioning deliverables, including mechanical, electrical, plumbing, fire protection, life safety, and control systems.

Travel Commissioning Engineer 2 - Tysons, VA

The Commissioning Engineer team is responsible for performing final testing, startup, and commissioning of low and medium voltage electrical distribution equipment, including breakers, transformers, switches, switchgear, relays, and motor control centers, as well as other electrical apparatus both in the field and in a manufacturing environment. Assists senior Commissioning Specialists and Managers in coordinating, executing, and reviewing MEP commissioning deliverables, including mechanical, electrical, plumbing, fire protection, life safety, and building automation systems.

Travel Commissioning Engineer 3 - Tysons, VA

Responsibilities include, but are not limited to: Assist with performing preventive maintenance and repairs on all mechanical, electrical, plumbing and HVAC systems including, but not limited to pumps, chillers, boilers, air compressors and air handling units. When applicable, obtain required city and/or government licenses or permits (i.e., Boiler Operating Permit, State Maintenance Electrician's License, EPA CFC Universal Certification Technician certificate, etc.).

Apprentice Engineer

Strong working knowledge of Microsoft Windows operating systems, including Windows configuration and system settings, Device Manager and hardware management, disk and storage management, BIOS and firmware configuration, Windows services, security settings, Event Viewer, and system troubleshooting tools. Company video (Available on application page) With around 400+ employees globally and offices in the UK, Poland, and the USA, Vision RT operates independently as part of the Danish company William Demant Invest A/S, one of the world’s largest investors in healthcare companies.

Vision RT

Field Service Engineer

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While performing the duties of this job, the employee is occasionally exposed to wet or humid conditions (non-weather), work near moving mechanical parts, work in high, precarious places, fumes or airborne particles, outdoor weather conditions, extreme cold (non-weather), extreme heat (non-weather), risk of electrical shock, and vibration. Confers with personnel, such as management, engineering, quality control, customer, or union workers' representatives, to coordinate work activities, resolve employee grievances, or identify and review resource needs.*.

DOUBLETREE BY HILTON WASHINGTON DC SILVER SPRING

Engineer Level 2

HiringThing

Verify site characteristics and provide technical assistance on various engineering, design, and construction issues relating to automatic temperature control systems and specifications, air distribution (supply, return, exhaust), hydronic systems (chilled water, heating water, etc.) and plumbing systems (domestic water, waste, vent, storm, etc.). Provide high-level technical assistance on various engineering, design, and construction issues relating to automatic temperature control systems and specifications, air distribution (supply, return, exhaust), hydronic systems (chilled water, heating water, etc.) and plumbing systems (domestic water, waste, vent, storm, etc.).

WSP Global Inc

Senior Mechanical Engineer

The ideal candidate will possess strong leadership experience designing telecommunications infrastructure projects involving copper and fiber optic cabling, telecom room modernization, and large-scale enterprise network environments. AGE Solutions is seeking an experienced BICSI Registered Communications Distribution Designer (RCDD) Telecom Design Engineer to support a large-scale campus-wide telecommunications infrastructure refresh for a federal customer in the Washington, DC area.

Safety Engineer Jobs in Washington, DC

Project Engineer (MEP) - Baltimore, MD M.C. Dean Inc

Building Engineer Donohoe Companies Inc., The

Project Engineer (MEP) - DMV M.C. Dean Inc

Field Engineer I AGE Solutions

Data Center Engineer - Secret Sunayu

Mechanical Engineer 4 - Active Top Secret M.C. Dean Inc

Design Engineer 1 - Washington, DC M.C. Dean, Inc

Power Distribution Designer/Engineer MasTec Inc

Commissioning Engineer Helix Electric Inc

IT Systems Engineer 3 - Falls Church, VA M.C. Dean, Inc

Operating Engineer National Geographic Society

Maintenance Engineer Hines Interests Limited Partnership

Senior Design Engineer Helsing GmbH

Travel Commissioning Engineer 2 - Tysons, VA M.C. Dean Inc

Travel Commissioning Engineer 3 - Tysons, VA M.C. Dean Inc

Apprentice Engineer Hines Interests Limited Partnership

Field Service Engineer Vision RT

Engineer Level 2 DOUBLETREE BY HILTON WASHINGTON DC SILVER SPRING

Senior Mechanical Engineer WSP Global Inc

RCDD Telecom Design Engineer AGE Solutions

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