Mechanical Engineer II

Join 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.

As a Mechanical Engineer II in our Washington, D.C. office, you will help us empower clients to achieve energy‑efficient building solutions, save the global environment, and create a greener future.

You will exercise independent judgment to develop and document system designs from concept plans and technical design criteria, interpreting and utilizing information provided in the basis of design, as well as information gathered from users, project partners, field surveys, and code research.

• BSAE or BSME required.
• 5‑10+ years’ experience designing HVAC building systems in technically sophisticated facilities.
• PE License or ability to become licensed.
• Proficiency with engineering design programs such as Revit MEP, AutoCAD, and Navisworks preferred.
• Understanding of applicable design codes, standards, and specification requirements, and ability to interpret them.
• Strong spoken and written communication skills.
• Excellent organization and time‑management skills.
• Quick technical comprehension and client‑focused motivation.
• Ability to prioritize multiple tasks effectively.
• Strong ability to work independently and within team environments.

• A flexible, collaborative environment that prioritizes employee well‑being.
• Opportunities for growth through mentorship, professional development programs, and exposure to high‑impact projects.
• Collaborate with inspiring teammates who challenge the status quo and foster innovation.
• A benefits package that includes health, dental, vision, retirement plans, a performance‑based year‑end bonus, and thoughtfully tailored perks such as flexible work options, wellness resources, and community‑focused initiatives.

Estimated starting salary range is $90,000 to $150,000.

AEI is proud to be an EEO/AA Employer/Vet/Disabled.