Mechanical Engineer

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future.

Building for the long‑term means that all of our team members can expect to work on amazing projects with a people‑first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high‑impact career—and they’ll receive great total rewards along the way.

About Us:

Founded in 1975, Salas O’Brien is an employee‑owned engineering and professional services firm focused on achieving impact for our clients, our team, and the world. We know that tomorrow’s requirements are today’s opportunities, and we are here to design lasting solutions for pressing challenges.

We work across a variety of industries providing integrated engineering and consulting services. Our specialized experience includes design for data centers, healthcare, science and technology, high‑rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more.

Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to life every day.

Job Summary: The Mechanical Engineer will provide engineering design, evaluation, and planning of mechanical systems. The candidate will have the opportunity to work on projects in a variety of market sectors, such as healthcare, science & technology, K‑12, higher education, and commercial projects. This position is offered in a hybrid work environment, with a combination of in‑office collaboration and remote work flexibility.

Duties and Responsibilities:

• Provide engineering design, evaluation, and planning of mechanical systems for healthcare, science & technology, education, and commercial projects while supporting project teams through various phases of project development from concept design through construction.
• Perform heating and cooling load calculations and energy analysis with software such as Trace 700 or similar programs.
• Work with a senior engineer to perform field investigations, building surveys and documentation of existing HVAC systems and site conditions.
• Develop system design calculations and selection of equipment for building HVAC systems.
• Write and edit project specifications.
• Prepare detailed design documents, engineering reports, and technical studies while maintaining organized and accurate project documentation.
• Perform code compliance research and communicate design consideration to Engineer of Record (EOR), Design Lead, or Project Manager.
• Coordinate mechanical system design with other engineering disciplines, architects, and project stakeholders.
• Provide construction administration services including reviewing submittals, responding to contractor questions, performing punch/walk inspections, and supporting construction phase coordination.
• Communicate effectively in both written and verbal formats with clients, contractors, and internal project teams to ensure alignment on design intent and project updates.
• Support project teams in maintaining project schedules, deliverable quality, and resolution of technical issues with both internal team members and external partners.
• Perform project billable work and engineering responsibilities consistent with expected utilization goals while contributing to successful project delivery.
• Foster an environment where new ideas are discussed and developed collaboratively to create practical solutions to client challenges.

Operational Responsibilities:

• Assist the Director of Mechanical Engineering in specialized projects to advance the growth of Mid‑Atlantic. These tasks may include but are not limited to mentoring interns/new hires, providing input for process improvements, and…