Executive Assistant

Sylmar is committed to addressing one of the most critical challenges facing future generations: water access and safety. Sylmar brings together decades of operational knowledge with patient capital to scale legacy businesses that protect public health and the environment.

Our leaders champion both servant leadership and operational rigor. We focus on empowering our people, communicating with clarity, and holding ourselves accountable for results. We hire the best, team members who are growth-minded, dedicated to our mission, and ready to take on this challenge with us.

Sylmar’s Water Treatment platform provides tailored water treatment programs for essential commercial use cases. The platform brings together in-house chemical blending facilities, treatment and service teams, and specialized technical support to deliver end-to-end water treatment programs tuned to each customer’s system. This model lets Sylmar exceed customer treatment requirements while reducing overall environmental footprint and total cost of ownership for water-consuming assets.

A sample of our products and services include:

• Regular cooling and heating water treatment service
• In-house formulated and blended water treatment chemistries
• Industrial water efficiency audits
• Legionella and waterborne pathogen consulting
• Specialized technical support for complex treatment programs

Sylmar is recruiting an Executive Assistant to support the Platform President of Sylmar Water Treatment (SWT) in Portland, OR. This is a high‑visibility, high‑impact role that blends strategic partnership with exceptional executive administrative support. This role will be based in your home office in the Portland, OR metro area, with required travel in Portland and to other Sylmar sites across the United States as needed.

Travel up to 20% is expected.

The ideal candidate is a trusted partner who brings sound judgment, exceptional organizational skills, and the discretion to handle sensitive matters at the highest level. This person will help protect the President’s time, drive follow‑through on key priorities, and ensure the leadership team operates with clarity and efficiency.

Key responsibilities include:

• Serve as a trusted partner to the Platform President, helping drive clarity, alignment, and execution.
• Manage the President’s priorities, operating rhythm, and follow‑through on key initiatives.
• Prepare executive‑level briefings, presentations, memos, and reports.
• Own and manage a complex executive calendar with strong prioritization.
• Coordinate and book all travel; manage itineraries and logistics.
• Manage the President’s expense reporting and approve staff expense reports.
• Draft, format, and prepare high‑quality reports, board materials, memos, and presentations using PowerPoint, Excel, Word, and AI tools.
• Prepare and organize documents and materials for meetings and events.
• Provide administrative support to the President’s direct reports and leadership team as needed.

• Plan and coordinate Platform leadership meetings, off‑sites, and strategic events.
• Build agendas, prepare materials, and ensure seamless execution.
• Drive process improvements that enhance communication and organizational efficiency.

• Serve as the primary gatekeeper for the President, filtering and prioritizing requests.
• Protect executive focus by resolving non‑routine issues independently and escalating only urgent matters.

• Handle sensitive information with absolute confidentiality, including financials, personnel matters, strategic plans, and high‑level issues.
• Exercise sound judgment in determining what information should be shared and with whom.

• Own and manage onboarding plans for new leadership hires within the President’s organization.
• Coordinate onboarding execution and ensure new employees have what they need to succeed.

• Lead or support cross‑functional initiatives across Finance, HR, Operations, and Corporate teams.
• Assist with acquisition integration and platform‑level strategic projects.

The ideal…