Inland Northwest Lead Design Engineer

About the role

At MacDonald-Miller Facility Solutions we design, deliver and service HVAC, plumbing and automation system solutions for commercial buildings. As the Northwest's leading mechanical contracting firm with over 1,600 employees across 15 offices, we offer a breadth and variety of work. The Lead Design Engineer will serve as both project manager and lead designer, guiding projects from concept through completion while partnering closely with clients, project teams, and fellow engineers. The role is based in the Tri-Cities office at 106010 E Wiser Pkwy, Suite B, Kennewick, WA 99338.

Responsibilities

• Develop high-quality, coordinated HVAC and plumbing designs that are constructible, accurate, cost-effective, and delivered on schedule.
• Manage projects with a strong understanding of scope, schedule, and budget; deliver engineering work efficiently while meeting or exceeding established project goals.
• Build strong relationships with internal and external partners through clear, timely, and proactive communication; coordinate across project teams, clients, contractors, and design partners.

Requirements

• 7+ years of experience designing HVAC and/or plumbing systems within a mechanical contracting or engineering environment.
• Demonstrated experience designing mechanical systems, performing engineering calculations, selecting equipment, and developing coordinated HVAC and plumbing layouts.
• Bachelor's or Master's degree in Mechanical Engineering.
• Strong understanding of building systems, construction processes, and the practical application of engineering design.
• Ability to manage multiple priorities while maintaining a high standard of technical quality and client service.
• Strong technical judgment and confidence to make decisions, solve problems, and take ownership of work.
• Great communicator and collaborator; able to listen, share information clearly, and bring people together to solve problems.
• Results‑oriented; sets ambitious goals, follows through, and takes pride in delivering high‑quality work.
• Proactive and highly accountable; sees what needs to be done and takes action.
• Strong problem solver; approaches challenges with curiosity, sound judgment, and a focus on practical solutions.
• Mentor and teammate; enjoys sharing knowledge and helping less experienced engineers develop skills and confidence.
• Strong work ethic; takes pride in work, commitments, and results delivered.
• Motivated by designing great projects across commercial, public, healthcare, and other complex projects.
• Desires ownership and autonomy; energized by freedom to solve problems and make decisions.
• Values continuous learning; enjoys tackling new topics and expanding technical expertise.
• Seeks growth and challenge; wants increasing responsibility and to stretch capabilities.
• Appreciates a lean, results‑oriented environment that values initiative, accountability, efficiency, and getting things done.
• Open to innovation; interested in new technologies, processes, and approaches to improve design and delivery.
• Values being part of a great team; values transparency, collaboration, and a supportive environment where people work hard, have fun, and genuinely enjoy working together.

Benefits

• Medical, dental, and vision insurance for employees (coverage available for dependents with shared premium)
• 401(k) retirement plan with company matching
• Paid time off (vacation, sick leave, and holidays)
• Disability income protection, including short‑term and long‑term disability
• Employee and dependent life insurance
• Wellness Program
• Employee Assistance Program (EAP)

Pay

$114,000 - $140,000 annually