Mechanical Engineer
M&J Engineering P.C.
Overview M&J Engineering, D.P.C. (M&J) is a quality provider of multi-discipline consulting services with over 300 employees. Since its inception in 2004, M&J has grown into diversified provider of engineering, construction management, construction inspection, technology, and environmental services to a broad range of clients, including federal, state and city/local agencies, private owners, architects, engineers and contractors. M&J Engineering is a leader in construction management and inspection, ITS, mechanical, electrical, wastewater, water supply, tunnel airport, port, marine/coastal, environmental engineering, and design-build services for both new infrastructure projects and renovations. M&J bases its employment and personnel decisions on the principles of Equal Employment Opportunity, with the intent to further the Company’s Aff… M&J is seeking a Mechanical Engineer. This role is essential to ensuring the safety, reliability, and compliance of Washington Metropolitan Area Transit Authority (WMATA)’s structural assets. Candidate will work in the field conducting inspections, documenting deficiencies, and coordinating with engineering and maintenance teams to provide support in the area of mechanical engineering. Responsibilities Collaborate with ELES staff to develop standard operating procedures (SOPs) for elevator and escalator modernization. Create and manage work plans for elevator and escalator modernization projects. Design and implement a data-driven predictive maintenance program in partnership with ELES staff. Develop assessment criteria for WMATA’s vertical transportation assets. Conduct comprehensive condition assessments of vertical transportation equipment and prepare detailed reports of findings. Coordinate with WMATA personnel to ensure successful completion of assigned tasks. Prepare materials lists and identify action items required to complete assigned work. Respond to WMATA inquiries related to project scope. Provide draft documents to stakeholders for review and incorporate feedback prior to finalization. Address WMATA comments and revisions on draft documents. Attend all required meetings. Perform other duties as assigned by the WMATA Task Manager. All other duties as assigned. Qualifications A minimum of a bachelor’s degree in engineering, project management, construction management, or related field. A minimum of 10 years’ demonstrable experience managing large, complex projects that include mechanical, structural, or electrical infrastructure. Registration as a Professional Engineer in one of the signatory jurisdictions of the WMATA compact, i.e., District of Columbia, Maryland, or Virginia; and Project Management Professional (PMP), Certified Associate in Project Management (CAPM), orCertified Supply Chain Manager (CSCM) and/or Certified Construction Manager (CCM)certification. Benefits M&J is a leader in providing quality engineering consulting services to a diverse and exciting client base. We attract experienced professionals who understand proactive client service, safety, risk management and loss prevention practices, quality control, teamwork, and the development of younger staff. We seek employees who enjoy their work, desire continuous improvement, and want to contribute to the vision and growth of a quality, employee-owned, professional firm. To all full-time employees we provide a comprehensive package of benefits, including medical, dental and eye insurance, 401(k) retirement plan, life insurance, etc. Salary will depend on experience and credentials. #J-18808-Ljbffr M&J Engineering P.C.
- ...based in Rockville, Maryland, is seeking a Control System Sales Engineer to enhance client relations and drive business growth. This... ...solutions. The ideal candidate should have a Bachelor's degree in Mechanical or Electrical Engineering and at least five years of...SuggestedFlexible hours
- ...sustainability landscape. We are seeking a talented Control System Sales Engineer to join our team. What You’ll Do Prospecting and... ...knowledge and sales skills. What You’ll Need Bachelor’s degree in Mechanical or Electrical Engineering, or a related technical field....SuggestedContract workFor contractorsWork at officeLocal areaFlexible hours
$43.05 per hour
Exelon is looking for a skilled Building Engineer in Rockville, Maryland. The role involves operating and maintaining heating, air-conditioning, plumbing, and electrical systems. Candidates must possess a valid District of Columbia Class 3 Stationary Engineers license...SuggestedHourly pay- Critical Systems in Rockville, Maryland is seeking a Sales Engineer to develop and maintain long-term customer relationships within consulting engineers and contractor accounts. The ideal candidate must have a bachelor's degree in Engineering and at least 5 years of field...SuggestedFor contractors
$90k - $150k
Join Affiliated Engineers, Inc. as a Mechanical Engineer II in Rockville, Maryland, where you’ll develop energy-efficient building solutions and design HVAC systems for technically sophisticated facilities. With a strong focus on collaboration and innovation, you’ll benefit...SuggestedFlexible hours$28 - $33 per hour
Pritchard Industries in Rockville, Maryland is seeking a skilled Building Engineer to oversee operational functionality of HVAC, electrical, plumbing, and mechanical systems across commercial properties. The ideal candidate will have 5+ years experience in a related role...Hourly pay- Alumni Ventures is seeking a Senior Mechanical Engineer in Rockville, Maryland, responsible for designing and developing mechanical systems for nuclear applications. The role involves conceptual development, analysis, and ensuring all systems meet technical specifications...Work at office
- Critical Systems in Rockville, MD, is seeking a Project Management Engineer to provide technical support for sales in HVAC equipment projects. The ideal candidate will hold a Bachelor’s degree in a relevant field and have over 5 years of experience in the HVAC industry...
$143.78k - $239.63k
...a manner otherwise, please contact us at Job Description Our Senior Piping and Valve Design Engineer is responsible for the engineering design and development of mechanical systems, structures, and components. This includes concept development, evaluation of concepts...Full timeInternshipWork at office$79.5k - $132.5k
Job Description X-energy is seeking professionals to join our Mechanical Engineering team in the role of Mechanical Design Engineer to support the development of the Xe-100. This role is responsible for the engineering design and development of mechanical systems, structures...Full timeInternshipWork at officeMonday to Friday- Wb-Engineers-Consultants-4 in Rockville, Maryland is looking for a Senior Engineer to handle projects from start to finish with minimal... ...engineers. Candidates should have a Bachelor's degree in mechanical engineering, 10 years of design experience, and proficiency in...
$75k - $125k
...operational expertise that connect and protect assets across the Earth-Moon system. Who We’re Looking For Quantum Space is seeking a Mechanical Engineer I to support the development of flight hardware for our Spacecraft Programs. This role is designed for an early-career...Permanent employmentInternship$86.71k - $119.22k
Montgomery College is seeking an experienced Mechanical Engineer to serve as a subject matter expert for electrical design across three multi‑building campuses. Under the supervision of the College Architect, this role is responsible for designing and supervising the in...For contractorsWork experience placementMonday to Friday$90k - $150k
Overview Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI) , we bring together expertise... ...progress, and your work helps shape a brighter future. As a Mechanical Engineer II in our Washington, D.C. office, you will help us...Work at officeFlexible hours- Job Description X-energy is seeking professionals to join our Mechanical Engineering team in the role of Mechanical Design Engineer to support the development of the Xe-100. This role is responsible for the engineering design and development of mechanical systems, structures...Full timeInternshipWork at office
$75k - $125k
Quantum Space in Rockville, MD is looking for a Mechanical Engineer I to support flight hardware development. This is an excellent opportunity for early-career engineers to build strong fundamentals and contribute to real hardware. Responsibilities include creating CAD...$139.28k - $232.13k
...Mechanical Engineering Manager (Heat Exchanger Design) X-energy, LLC is seeking an accomplished Mechanical Engineering Manager to lead our advanced Mechanical Design team in the development of Steam Generators and Heat Exchangers for advanced nuclear reactor applications...Full timeWork at officeMonday to Friday- MEP Engineer Work Location: Rockville, MD Employment Type: Full-time regular About This Opportunity Through a constructive and energetic... ...problems for existing buildings and facilities related to mechanical, plumbing, and/or electrical systems. The MEP group services...Full timeTemporary workWork at officeLocal areaFlexible hours
- ...operational expertise that connect and protect assets across the Earth-Moon system. Who We’re Looking For Quantum Space is seeking a Mechanical Engineer II to contribute to the development of flight hardware across our Spacecraft Programs. This role is intended for an engineer...Permanent employment
$24 - $26 per hour
Overview Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI) , we bring together expertise... ...progress, and your work helps shape a brighter future. As a Mechanical Engineer Intern in our Washington, D.C. office for Summer 202...Summer workInternshipWork at officeFlexible hours- ...Applications Engineer The Applications Engineer is responsible for providing technical support for sales team members and clients... ...Permanent Residency (Green Card) required Bachelor's degree in Mechanical Engineering (HVAC), Civil Engineering, or Construction...Permanent employmentFor contractorsWork at office
$86.71k - $119.22k
Montgomery College is seeking a Mechanical Engineer in Rockville, Maryland. The role involves designing HVAC and plumbing systems for multi-building campuses, project managing contracted construction work, and ensuring compliance with design specifications. Required qualifications...- ...from start to finish 100% with little to no oversight. Senior Engineers tackle our most complex projects. Provides oversight, mentorship... ...scope of work, budget, and staffing Write scope of work for mechanical design based on preliminary review and meetings with the...For contractorsFor subcontractor
$164.55k - $274.25k
Alumni Ventures is seeking a Deputy Director of Mechanical Engineering in Rockville, MD. This strategic leader will oversee the mechanical engineering team, manage the design and analysis of critical reactor systems, and ensure compliance with regulatory requirements....- Alumni Ventures is seeking a Mechanical Design Engineer to join our team based in Rockville, Maryland. In this role, you will be responsible for the engineering design of mechanical systems for the Xe-100, ensuring they meet safety and technical standards. The ideal candidate...
- ...analysis, and qualification of pressure boundary components for the Xe-100 reactor. Candidates should have a Bachelor's degree in Mechanical Engineering and ideally 7+ years of relevant experience. Benefits include competitive salaries, a robust benefits package, and...
- Affiliated Engineers, Inc. is seeking a Mechanical Engineer Intern for Summer 2026 in Rockville, Maryland. The role focuses on empowering clients for energy-efficient building solutions. Interns will engage in significant projects within a supportive community. Ideal candidates...Summer workInternship
- WB Engineers+Consultants is seeking a Senior Engineer in Rockville, Maryland. In this role, you will handle complex projects with minimal oversight... .... Qualified candidates should have a Bachelor's degree in mechanical engineering and at least 10 years of design experience,...
$43.05 per hour
Exelon is seeking a Building Engineer in Bethesda, Maryland, to operate and maintain heating, air-conditioning, plumbing, and electrical... ...will have a strong background in maintaining various mechanical systems and a valid District of Columbia or Maryland engineering...Hourly pay$43.05 per hour
Pepco Holdings is seeking a Building Engineer B in Bethesda, MD, to operate, maintain, and repair heating, air-conditioning, plumbing, and electrical systems. Ideal candidates will have a valid District of Columbia Class 3 Stationary Engineers license or Maryland Grade...Hourly pay
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineer. Be the first to apply!

