Senior Administrative Assistant

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

AECOM is actively seeking a Senior Administrative Assistant to provide high-level administrative support to the senior leadership team. This role requires exceptional multitasking abilities, attention to detail, and the ability to manage confidential information with discretion. The Executive Assistant will act as a key liaison between senior leadership, internal teams, and external stakeholders, ensuring seamless communication and efficient operations. This role is a hybrid position located in Chicago, IL.

About the Chicago Buildings + Places Team

Our practice is one of the fastest growing and highest-performing B+P practices in AECOM’ s West Region. We offer a full suite of services: architecture, interiors, building systems and structural engineering, urbanism and planning (including landscape), workplace transformation, advisory services, technology solutions, and digital delivery - and serve as a Center of Excellence for many of these disciplines.

We work in a collaborative model across the West Region with other B+P practices, as well as with AECOM’s Transportation, Water, Environment and Advisory business lines to support vertical infrastructure and comprehensive solutions. Our Chicago-led client base is global and includes Public Non-Federal, Cultural + Civic, Commercial, Science & Technology, Transit, and Federal clients. Most clients are repeat partners, recognizing our service model and outcomes as excellent. Recognized by over 45 design awards in the past five years, we aim to be the design firm of choice for clients and the employer of choice for diverse, best-in-class talent - doing the work that matters.

Recent/ongoing projects include: Milwaukee County Courthouse; Fermi Welcome Center; CTA Redline Station Upgrade; Rockford Air Traffic Control Tower; City of Chicago Joint Police and Training Center Emergency Medical Services Addition; Lake County Convention Center.

What You’ll Do

The Senior Admirative Assistant is a vital role that supports the smooth functioning of executive operations. This position is ideal for a detail-oriented, resourceful professional who thrives in a dynamic environment and excels at supporting leadership in achieving organizational goals.

Responsibilities include and are not limited to:

• Provide proactive administrative and strategic support to support the senior leadership team, including calendar management and prioritization across multiple time zones.

• Act as a key liaison between senior leadership, internal teams and external stakeholders to facilitate communication and decision-making.

• Prepare and organize materials and logistics for meetings, presentations, strategic discussions and team building activities, ensuring timely follow-up on action items and deliverables.

• Maintain and update CRM (Salesforce) data to support relationship management and business development efforts.

• Track and manage key operational tasks, firm initiatives and leadership priorities to ensure alignment with firm goals.

• Support resourcing and staffing efforts across multiple disciplines.

• Support confidential projects, prepare correspondence and manage information flow with discretion and judgment.

• Anticipate needs and identify opportunities to increase senior leadership effectiveness and efficiency.

• Contribute to creating a high-performing and inclusive culture.

To be successful in this role you must be highly proficient in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) and familiarity with scheduling tools and CRM software.

Why Join AECOM Chicago B+P

• Work with a high-performing, collaborative team on projects that matter.

• Engage across multi-disciplinary practices and business lines, with opportunities to support regional strategy.

• Contribute to creating a high-performing and inclusive culture.

If you’re a motivated and detail-oriented team player who thrives in a dynamic environment and excels at supporting leadership in achieving organizational goals, we’d love to meet you. Apply to join our team and help us deliver the work that matters.

Minimum Requirements:

• High School degree + 8 years of relevant experience, or demonstrated equivalency of education/experience.

Preferred Qualifications:

• Highly Proficient in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) and familiarity with scheduling tools and CRM software.

• Associate’s or Bachelor’s degree in Business Administration, Communications, or a related field preferred.

• Four plus years of experience as an Executive Assistant at an architecture, engineering, or other consulting office environment.

• Ability to work independently and as part of a team in a fast-paced environment.

• Exceptional ability to prioritize tasks, manage deadlines, and maintain attention to detail.

• Strong verbal and written communication skills, with the ability to interact professionally at all levels.

• Strong interpersonal skills to build trust and rapport with senior leadership and stakeholders.

• Resourceful and adaptable, with the ability to anticipate needs and resolve issues proactively.

• Flexibility to adapt to changing priorities and handle multiple tasks simultaneously.

• Maintains a high level of responsiveness at all times.

• This position will not offer sponsorship now or in the future.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.