4 experienced mechanical design engineer jobs found in Fairfax, VA

At Whitman, Requardt & Associates, LLP, we are "People Focused and Project Driven". We have been in business for more than 110 years and we are known for our quality work and developing quality employee careers. We are seeking the very best and most talented to join our team - help us take on challenges, develop vision solutions, and innovate and design the infrastructure of the future that will transform the world! Whitman, Requardt & Associates, LLP (WRA) is a leading multidisciplinary engineering and architectural firm committed to providing innovative and sustainable solutions to our clients' most complex challenges. With a history spanning over 100 years, our firm has a strong reputation for excellence in design, engineering, and construction services. We are seeking a talented and experienced Senior Mechanical Engineer to join our team in our Fairfax, VA office. As a Senior Mechanical Engineer at Whitman, Requardt & Associates, LLP, you will play a pivotal role...

Salary : $87,024.91 - $145,041.94 Annually Location : FAIRFAX (EJ32), VA Job Type: FT Salary W BN Job Number: 26-00546 Department: DPWES Capital Facilities Opening Date: 04/18/2026 Closing Date: 5/15/2026 11:59 PM Eastern Pay Grade: S29 Posting Type: Open to General Public Job Announcement $5,000 Signing Bonus* Seeking the next exciting challenge in your career? Join the award-winning organization of the Building Design and Construction Division (BDCD), Building Construction Branch, in Capital Facilities Fairfax County Government & be a part of this professional organization managing the construction of County government facilities. The Fairfax County Department of Public Works and Environmental Services (DPWES), Capital Facilities (CAP), Building Design and Construction Division (BDCD), Building Construction Branch (BCB), seeks an architect, civil engineer, structural engineer, mechanical engineer or electrical engineer to serve as construction...

Salary : $87,024.91 - $145,041.94 Annually Location : FAIRFAX (EJ32), VA Job Type: FT Salary W BN Job Number: 26-00522 Department: DPWES Capital Facilities Opening Date: 04/18/2026 Closing Date: 5/15/2026 11:59 PM Eastern Pay Grade: S29 Posting Type: Open to General Public Job Announcement $5,000 Signing Bonus* If your goal is to build a career that makes a difference and has an impact on the design and construction of the community around you, the Building Design Branch wants you! We are seeking a highly motivated, a team player, engineer or architect project manager to work in a fast-paced collaborative team environment providing outstanding customer service to using agencies and project stakeholders, and to continue to be the provider of choice for project delivery countywide. DPWES is a diverse, nationally accredited and award-winning public works agency with approximately 1,000 employees providing solid waste, capital facility development,...

Position Overview Gauthier, Alvarado & Associates, a Northern Virginia-based multidisciplinary Architectural/Engineering firm located in Fairfax, VA, provides Architectural, Structural, Mechanical, Plumbing, and Electrical engineering services across a diverse portfolio of commercial office buildings, educational facilities, public agencies, and interior tenant build-outs. GAA is seeking a mid-level Mechanical Engineer (7-10 years of experience) with a strong background in building systems design to join our growing team. This role is ideal for a hands-on engineer who can independently design mechanical systems with minimal oversight while also serving as a key contributor between senior leadership and junior staff. The successful candidate will play a critical role in developing high-quality construction documents, supporting project delivery, and helping mentor entry-level engineers, while collaborating closely with in-house architects and engineering disciplines. This...