Office Manager​/Administrative Assistant

Office Manager / Administrative Assistant

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.

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.

The Office Manager / Administrative Assistant provides day-to-day administrative and operational support to ensure the office runs smoothly and efficiently. This role serves as a central point of contact for office coordination, administrative processes, and internal support, while also assisting leadership and team members with scheduling, communications, and general administrative needs. The ideal candidate is organized, proactive, detail-oriented, and comfortable managing multiple priorities in a professional services environment.

Responsibilities:

• Serve as the primary point of contact for office operations and administrative coordination
• Manage office supplies, equipment, and vendor relationships
• Coordinate office logistics, including meetings, visitors, and general office upkeep
• Assist in planning/coordinating office events
• Support onboarding logistics for new hires in coordination with HR and IT
• Provide administrative support to leadership and team members, including calendar and meeting management
• Prepare correspondence, reports, presentations, and other administrative materials
• Maintain organized electronic and physical filing systems
• Assist with expense reports, invoice processing, and administrative tracking
• Answer and direct incoming calls, emails, and inquiries professionally
• Support internal communications and information flow

Qualifications and

Experience:

• High school diploma or equivalent required;
Associate's degree preferred

• 2+ years of experience in an administrative assistant, office manager, or similar role

• Strong organizational skills with the ability to manage multiple priorities

• Excellent written and verbal communication skills

• Proficiency in Microsoft Office (Outlook, Word, Excel, PowerPoint)

• Experience in a professional services, engineering, or consulting environment preferred

• Strong attention to detail, professionalism, and discretion

Location:

Denver (Greenwood Village)

Travel: N/A

Compensation & Benefits:

The expected base salary range for this role is $26-30/hour ($54,080 - $62,400) USD per year. Actual compensation will be determined based on a number of factors…