Senior Mechanical Engineer

The Opportunity

PAE is looking for a highly capable Senior Mechanical Engineer for our Seattle, WA office to lead and manage multidisciplinary project teams through all phases of design and construction. This role is responsible for delivering high‑quality mechanical engineering solutions on schedule and within budget while serving as a technical leader and mentor within the organization. The Senior Mechanical Engineer will oversee the development of detailed engineering deliverables including calculations, narratives, drawings, and specifications, while ensuring alignment across internal disciplines, external partners, and client stakeholders.

This position requires expertise in HVAC, Plumbing, Fire Protection, and Energy Modeling, as well as a deep understanding of building codes, industry standards, and quality management principles. In this role, you will develop project workplans, assemble and guide project teams, conduct site visits, lead coordination efforts, support client relationships, and provide technical direction and mentorship to staff. You may also take on responsibilities as Project Manager or Engineer of Record (EOR) with approval.

The ideal candidate is collaborative, detail-oriented, and skilled in project leadership, communication, and delegation. This is an excellent opportunity for an experienced mechanical engineer who thrives in a fast‑paced environment and is committed to delivering innovative, efficient, and high-performing building systems.

Who We ArePAE is an engineering and design firm that turns complex challenges into reality. By leveraging the latest technologies, we solve problems in unique ways, and our designs enable buildings and communities to be more resilient and efficient. PAE is trusted by our clients in every aspect of a project's lifespan, from idea to occupancy. We set ambitious goals backed by analysis to significantly conserve water and energy while balancing costs and long-term operational needs.

As a B Corp, we measure success by the benefits our projects provide to our clients, our communities, and our planet. We embrace innovation, transparency, sustainability, and lifelong curiosity.

What You'll DoProject team leadership and management, responsible for completing the project on time within budget

Responsible for the preparation of deliverable documents including narratives, calculations, drawings and specifications

Attend client meetings, lead the coordination effort between external and internal project teams

Independently evaluate and apply engineering judgment, techniques, and procedures to complete a project from concepts through construction

Proficient in mechanical system design, HVAC, Plumbing, Fire Protection and Energy Modeling Assemble effective project teams

Develop project workplans, tasks and assignments for the team Thorough understanding of interdisciplinary coordination

Advanced understanding of the application of building codes and mechanical industry standards

Oversee engineering calculations and equipment selection

Perform site visits and issues reports

Provide training, guidance and mentorship for staff

Provide updates to master specifications and standards, and improve company processes

Develop client relationships

Oversee the application of the project quality management plan (QMP)
May be responsible as a Project Manager or the Engineer of Record (EOR) with approval

Perform other duties as assigned

What You Bring Bachelor’s Degree in Engineering for discipline work Relevant professional credential (i.e., PE)
Requires a minimum of 1-3 years Mechanical 4, or 6-10 years’ related work experience

Inspire and motivate staff

Serve as a technical resource for the company

Advanced understanding of mechanical engineering concepts, able to effectively communicate design options

Able to assemble and run a team Strong delegation skills

Attention to detail and advanced organizational skills

Microsoft Office Suite Revit/AutoCADWhat We Offer Hiring Base Salary Range: $122,000-$140,800 annual

This position is eligible for time and a half overtime payThe base salary is one component of PAE’s competitive compensation package for employees. We take into…