Mechanical Engineer
AEI
Mechanical Engineer InternJoin a team where engineering excellence drives opportunity. At Affiliated Engineers, Inc. (AEI), we bring together expertise and innovation to solve the most complex challenges. Since 1978, we've supported mission-driven organizations in designing systems and environments that advance society and improve lives. Today, with more than 900 professionals across 22 offices, we help shape the future of healthcare, science and technology, energy, education, and other vital sectors.From elevating patient care in Mayo Clinic's world-class hospitals to enabling discovery in high-containment laboratories for U.S. agencies and driving environmental progress with Microsoft's renowned Thermal Energy Center, our work enriches the human experience, safeguards the environment, and pushes the boundaries of possibility.AEI consistently earns national recognition from leading industry publications, including Building Design+Construction, Engineering News-Record, and Consulting-Specifying Engineer, with distinctions such as being named the #1 Laboratory Engineering Firm in the nation and receiving multiple Best of the Best Project awards, underscoring the lasting legacy of our work.At AEI, you'll join a collaborative community where your expertise fuels innovation, your ideas drive progress, and your work helps shape a brighter future.As a Mechanical Engineer Intern in our Washington, D.C. office for Summer 2027, you will help us empower our clients to achieve energy-efficient building solutions, save global environments, and create a better, greener future for all.Why we need you:In this role, you will have the opportunity to approach design in unconventional ways, apply your knowledge while working on significant and complex projects, work alongside professionals known for advanced engineering solutions, observe how a successful engineering firm operates, establish ties that could solidify your professional future, and learn within a friendly, supportive environment.Expertise of our most successful Mechanical Engineer Intern:Enrollment in Mechanical or Architectural Engineering program from ABET accredited school.Completed 3 years of coursework or have a junior standing.Minimum GPA of 2.5.Leadership involvement in extracurricular activities/student organizations.Effective skills to help you flourish:Strong spoken and written communications skills.Excellent organization and time management skills.Quick technical comprehension and motivation focused on client outcomes.Able to effectively prioritize multiple tasks.Effective working individually and within team environments.When you work here, you can expect:A flexible, collaborative environment where your well-being matters—because your best work happens when you're supported.Real opportunities to grow—through mentorship, professional development programs, and exposure to high-impact projects across disciplines.To collaborate with inspiring teammates who challenge the status quo, foster innovation, and pave the way for future leaders.A benefits package that offers health, dental, vision, and retirement, a performance-based year-end bonus, and thoughtful perks tailored to your needs—whether that's a flexible work environment, wellness resources, or community-focused initiatives, we'll continue to invest in.If this dynamic environment and the chance to contribute to transformative projects resonate with your ambitions, we would love to connect with you. Join us and make an impact!
- Wiley|Wilson, a 100% employee-owned architecture and engineering firm, is looking to add a seasoned Senior Mechanical Engineer with expertise in district utilities to our Alexandria, VA office. This role is ideal for a driven professional eager to help grow our established...SuggestedWork at officeWork from home
$90k - $125k
...EngineerOur team is growing and we are seeking a Control Systems Engineer to join our federal team supporting the Pentagon in Arlington,... ...and sustainability needs, primarily related to the HVAC Mechanical and HVAC Controls (Building Automation Systems).At Johnson Controls...SuggestedWorldwideMonday to Friday- ...Controls EngineerTransform the everyday with us! Building Automation Engineers serve as a technical leader during pre-construction and early... ...work with an engineer to prepare design documents, including mechanical system layouts, electrical drawings, system integration, bills...SuggestedPermanent employmentContract workFor contractorsWork at officeLocal area
- PRO-Telligent, A Tetra Tech Company, needs a Mechanical Engineer in Ashgabat, Turkmenistan for construction of New US Embassy Compound (NEC) with State Department Bureau of Overseas Buildings Operations (OBO). Requires a US Govt. Secret Security Clearance. The Project17...SuggestedFor contractorsWork at officeLocal areaWorldwideOverseas
- ...our impact on the world?Watch Our Story:' We believe building engineering is more than systems and structures, it’s about powering... ...advancement, sustainability, and human experience. We bring together mechanical, electrical, structural, and civil engineering experts to...SuggestedContract work
- Energy Jobline ZR is seeking a Building Engineer to cover two condo buildings in Arlington, VA. The role requires 5+ years in building maintenance, with hands-on work across mechanical, electrical, and plumbing systems. The engineer will rotate between properties, perform...Apprenticeship
- MMR Consulting is seeking a senior engineer to join our pharmaceutical/biotech-focused engineering team in a client-facing role. You will supervise commissioning, qualification and validation efforts for clean utility systems across multiple projects and facilities. You...
$96.33k - $192.8k
...capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support... ...of HII, is expanding - and we're looking for bold, inventive Mechanical Engineers (multiple levels) to join our fast-moving,...Full timeWork at officeLocal areaWorldwide$120.58k
...This is an Excepted Service position and does not require or confer Civil Service Competitive StatusWork type: Permanent, Full TimeRelocation: FalsePosition ID: CPP-2026-106Document ID: 863228900Grade: GS 13Job category: Mechanical Engineering (0830)Hiring path: publicPermanent employment$125.12k - $187.68k
...Tysons, Virginia, and employs more than 7,000 professionals who engineer and deploy automated, secure, and resilient power and... ...required by the customer.ResponsibilitiesWe are seeking a skilled Mechanical Engineer to lead and support design, bid, and execution of mechanical...For contractorsFor subcontractorLocal area$107.3k - $155.5k
...the world’s leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists,... ....Your OpportunityOur Buildings team is looking for a Project Mechanical Engineer with a focus in HVAC design. You will work with direct...Full timeTemporary workPart timeFor contractorsFor subcontractorCasual workWork at officeLocal areaFlexible hours- ...Management, Compliance, Business Process, IT Effectiveness, Engineering, Environmental, Sustainability, and Human Capital. We help forward... ...About ProSidian Consulting at DescriptionProSidian Seeks a Mechanical Engineer | Technical Due Diligence & Engineering Validation...Full timeContract workTemporary workFor contractorsWork at officeRemote workFlexible hours
- ...designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity... ...OverviewWe are seeking a highly skilled and detail-oriented Mechanical Harness Engineer to join our dynamic team working on state-of-...Casual workWork at office
$143.91k
...to 09/11/2026Schedule: Full-timeWork type: Multiple Appointment TypesRelocation: FalsePosition ID: DLADS-26-13037244-MPDocument ID: 881146300Grade: GS 14Job category: Mechanical Engineering (0830)Hiring path: fed-internal-search, fed-transition, vet, mspouse, disability- Carr Properties is seeking an Engineer III to supervise day porters, maintenance technicians, and assistants while maintaining large-scale HVAC, electrical, plumbing, and control systems in a premier building. The role requires responding to tenant requests, troubleshooting...
$110k - $175k
...Our Community of Food People!The Senior Refrigeration Systems Engineer is responsible for the design, optimization, reliability, and... ...continuous improvement of infrastructure, automation, controls, mechanical, electrical, and facility support systems.The Senior...Minimum wageFull timeTemporary workFor contractorsWork at officeLocal areaRemote workFlexible hoursNight shift- ...The Opportunity Black & Veatch is seeking a Mechanical HVAC / Plumbing Engineer to provide design for a variety of buildings in the Federal market sector. This position is for an experienced design engineer with a background in HVAC, piping, and plumbing design. Building...For contractorsWork experience placementWork at officeFlexible hours
$30 per hour
...Maintenance Technician or HVAC/Facilities Technician into Building Engineering? Alexandria, VA $30.00/hour | Full-Time $500 Sign-On... ...Building Maintenance Technicians Maintenance Mechanics Senior Maintenance Technicians Lead Maintenance Technicians...Permanent employmentFull timeFor contractorsRelocation package$84.7k - $144.43k
...Senior Mechanical Controls Engineer - Mission CriticalDLR Group is an integrated design firm with a promise to elevate the human experience through design. This fuels the work we do around the world and inspires our mission to improve the lives of our clients, our communities...Local area- Avison Young is seeking a Building Engineer to perform building operations and preventive maintenance under the Property Manager and Chief Engineer. You will maintain HVAC, plumbing, electrical systems and respond to tenant service requests, ensuring safety and reliability...For contractors
- ...Job Details: Mechanical Engineer **Qualifications Needed:** - Bachelor's degree is preferred; however, those with technician experience in the HVAC field or sheet metal are encouraged to apply. - Experience in selling mechanical airflow or similar building material...Work at office
- ...Job Description Job Description Mechanical Engineer **Qualifications Needed:** - Bachelor's degree is preferred; however, those with technician experience in the HVAC field or sheet metal are encouraged to apply. - Experience in selling mechanical airflow or...Work at office
- ISN is seeking a Full-Time Building Engineer for our Bethesda, Maryland office. The role focuses on independently maintaining and monitoring... ...+ years of experience with programmable logic controllers and mechanical systems, with preferred depth in these areas. We offer a...Full timeWork at office
- CMTA, Inc. in Arlington, VA, seeks a co-op for mechanical/building systems design. The role provides hands-on training in HVAC design, with supervision from Professional Engineers in AutoCAD and Revit. You will work on real CMTA projects, learn to create construction drawings...
$100k - $137k
...get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions.SENIOR MECHANICAL ENGINEER IAs a Mechanical Engineer at Rocket Lab’s Silver Spring, Maryland location, you will lead development of innovative and complex...Permanent employmentLocal areaFlexible hours$87k - $125k
...space, our world-class Space Systems team is empowering some of the boldest and most ambitious space missionsMECHANICAL ENGINEER II/SENIORAs a Mechanical Engineer at Rocket Lab’s Silver Spring, Maryland location, you will lead development of innovative and complex...Permanent employmentLocal areaFlexible hours$130k - $190k
Job TitleSenior Mechanical EngineerLocationBethesda, MD 20800 US (Primary)CategoryResearch, Development, and EngineeringJob TypeFull-TimeCareer... ...DescriptionPrescient Edge is seeking a Senior Mechanical Engineer to support a federal government client.Benefits & Compensation...$90k - $120k
Start designing tomorrow’s future! Buro Happold has an exciting opportunity for a talented Senior Mechanical Engineer to join our hybrid team in Washington, DC! As a Senior Mechanical Engineer you will have the opportunity to lead design for mechanical engineering across...Permanent employmentContract workSummer workImmediate startFlexible hours$105k - $125k
A professional engineering firm is seeking a Mechanical Engineer in Bethesda, MD. The role involves designing and evaluating HVAC systems across diverse sectors, including healthcare and education. Candidates must have at least 5 years of HVAC design experience and a Bachelor...$126.4k - $189.6k
...the world’s leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists,... ...place with Stantec.Your OpportunityWe are seeking a Senior Mechanical Engineer to help lead exciting and complex projects to join our...Full timeContract workTemporary workPart timeFor contractorsCasual workWork at officeLocal areaFlexible hours
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