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Senior Buyer

Job in Seattle, King County, Washington, 98127, USA
Listing for: MacDonald-Miller Facility Solutions
Full Time position
Listed on 2026-09-07
Job specializations:
  • Supply Chain/Logistics
    Procurement / Purchasing
Salary/Wage Range or Industry Benchmark: 90000 - 117000 USD Yearly USD 90000.00 117000.00 YEAR
Job Description & How to Apply Below

At Mac Donald-Miller Facility Solutions (“Mac Miller”) we make buildings work better. As the Northwest’s leading mechanical contracting firm, we design, deliver and service HVAC, plumbing and automation system solutions for commercial buildings. With our 1,600 employees across 14 offices – there is a breadth and variety of work to keep you engaged and inspired.

We enjoy a well-respected history of exceeding our customers’ expectations and executing with distinction. Our clients trust their toughest projects with our integrated teams, including:

  • New construction
    – Engineering, fabrication and install of mechanical systems for new projects following lean construction practices
  • Special projects – Retrofits and mechanical repairs for existing buildings for new efficiencies
  • Service - scheduled preventative maintenance ensuring tenant comfort, and 24/7 emergency response
  • Building Performance – Control systems, fault detection, energy services and remote monitoring
  • Energy and Sustainable Solutions
    – Acting as the Prime Contractor, we deliver design-build energy-efficient projects in the built environment for private and public sector clients

People love to work at Mac Donald-Miller, and it’s because we all share the same Core Culture Values:

  • Collaboration – Diverse players, one team, a common vision. Collaboration is our foundation and critical to the success of the company. Every team member is valued and brings a diversity of strengths to help us meet our common vision.
  • Dedication
    We are dedicated to personal and professional excellence. We execute with distinction by doing the right thing and following through on our commitments.
  • Safety
    Everyone deserves a safe workplace. Safety is more than hardhats and boots, it’s an attitude and the environment we create. Every day, everyone goes home to their families.
  • Community
    We are proud to be part of Mac Donald-Miller. We actively seek to build relationships and know each other as individuals. Together we create an environment that is welcoming, caring, and trusting.
  • Innovation
    We are committed to continuous,
    creative problem solving. Innovation is how we stay an industry leader. We always strive to challenge and better ourselves.
  • Fun! – Take the work seriously, but never taking ourselves too seriously. It’s possible to be both serious professionals and good-natured people you enjoy working with. We strive to be both.
Senior Buyer:
This Is Where You Come In.

We’re looking for a
Senior Buyer
who knows how to build strong supplier relationships, negotiate great deals, solve problems, and keep things moving. You’ll be the primary point of contact for suppliers, manufacturers, and vendors while ensuring our teams have the materials, equipment, and services they need—when they need them.

This is a highly collaborative role that works across
engineering, estimating, sales, project management, operations, and other teams
throughout the business. You’ll need to understand the needs of the business, clarify expectations, communicate proactively, and make smart purchasing decisions that balance cost, quality, availability, and delivery.

You’ll also play an important role in developing the team around you by sharing your knowledge, mentoring others, and helping raise the bar for how we approach procurement.

In return for achieving aggressive goals, you’ll earn more ownership, significant growth opportunities, and more freedom than you’ve probably ever had in a purchasing role.

Your First-Year Mission:
Be a Hero

In your first year, you’ll be expected to:

  • Own the procurement process
    from start to finish, ensuring purchases are efficient, cost-effective, and aligned with company policies.
  • Identify and secure best-value suppliers
    who can consistently meet our business and project needs.
  • Execute procurement processes
    in accordance with departmental SOPs and risk-management strategies.
  • Build strong supplier relationships
    with manufacturers, vendors, and strategic partners.
  • Hold suppliers accountable
    to MMFS standards for quality, pricing, service, and delivery.
  • Monitor supplier performance
    and proactively address issues before they become bigger problems.
  • Partner cross-functionally
    with…
Position Requirements
10+ Years work experience
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