Senior Administrative Assistant

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

At HDR, our employeeownership model shapes everything we do, including how we support and care for our people. Our diverse service lines, including Water, Architecture, Building Engineering Services, Field Services, Power, Waste, Industrial, and Transportation reflect our commitment to shaping resilient, sustainable, and forwardthinking communities around the world. Across these disciplines, our teams design and deliver solutions that safeguard public health, enhance quality of life, power innovation, and drive responsible growth. Whether advancing clean water, creating healing and learning environments, engineering nextgeneration facilities, or building the infrastructure that moves people and energy, our work is rooted in technical excellence and a shared sense of purpose. Our employeeowners collaborate across specialties, combining creativity, precision, and deep expertise to solve the most complex challenges facing our clients and communities.

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Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world. In the role of Senior Administrative Assistant, we'll count on you to:

• Provide a variety of administrative functions, which may include administrative support for one or more executives, phone coverage, reading and routing incoming mail, scheduling appointments, and processing expense reports
• Compose and organize materials and reports, and maintain records for work performed
• Coordinate and manage meeting facilities and arrangements
• Handle highly sensitive and confidential information with professionalism and discretion
• Maintain budget or handle specific accounting responsibilities as needed
• Answer questions relating to company policies and procedures as needed
• Provide meeting setup, travel arrangements, light accounting, and other miscellaneous tasks/projects as needed
• Support new hire onboarding and workspace coordination in partnership with IT and HR
• Perform other duties as needed

Preferred Qualifications:

• Associate degree
• Experience in the A/E industry is preferred
• 3+ years of previous administrative experience is preferred

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Required Qualifications

• High School diploma or equivalent
• A minimum of 3 years experience in administrative support
• Knowledge of MS Office Suite, including Word and Outlook
• Excellent verbal and written communication skills
• Professional, self-motivated, well-organized and detail-oriented with the flexibility and ability to prioritize and handle multiple tasks in a fast-paced environment
• Ability to meet deadlines
• Knowledge of A/E industry desired
• Experience working in an office environment
• An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees. We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement. The expected compensation range for this position depends upon skills, experience, education and geographical location. (Stated benefits are for full-time regular positions. Temporary and part-time roles eligible for limited benefits.) Illinois: $51,205.00 - $73,150.00 Primary Location: United States-Illinois-Chicago Industry: Administrative Schedule: Full-time Employee Status: Regular BusinessClass: Marketing and Admin Job Posting: Oct 7, 2026