Senior Administrative Assistant

Location: New York

About Our Company Working at Columbia Threadneedle Investments you'll find growth and career opportunities across all of our businesses.

We're intentionally built to help you succeed. Our reach is expansive with a Columbia Threadneedle Investments global team of 2,300 people working together. Our capability is diverse with more than 550 investment professionals sharing global perspectives across all major asset classes and markets. Our clients have access to a broad array of investment strategies, and we have the capability to create bespoke solutions matched to clients' specific requirements.

Our unwavering focus on our clients and strong financial foundation connects each of our enterprise businesses — Ameriprise Financial, Columbia Threadneedle Investments and River Source Insurance and Annuities.

Job Description Columbia Threadneedle Investments is seeking a proactive and highly organized Senior Administrative Assistant to support senior leaders and drive day-to-day efficiency. In this role, you’ll manage complex calendars, coordinate meetings and events, and handle communications on behalf of leadership. You’ll also oversee travel, expenses, presentations, and department initiatives—including town halls, offsites, and special projects. This position requires strong judgment, discretion, and the ability to prioritize effectively in a fast-paced environment while acting as a trusted partner to leadership.

Key Responsibilities Proactively manage executive calendars, prioritize meetings, and coordinate schedules across internal and external stakeholders

Plan and organize meetings, conferences, and events (logistics, materials, travel, etc.)Review and respond to emails on behalf of leaders as appropriate, and flag items requiring follow-up Prepare expense reports, invoices, presentations, communications, and travel arrangements

Support department operations, including programs like recognition, timekeeping, budgets, and supply management

Coordinate team offsites, events, and special initiatives

Provide project and program support (researching questions, coordinating efforts, handling ad hoc requests)
Mentor or onboard administrative team members; may provide guidance or leadership to others

Provide back-up support for other administrative assistants as needed

Required Qualifications High school diploma or GED1–3+ years of administrative or executive support experience

Strong proficiency with Microsoft Office (Word, Excel, PowerPoint) and tools like Outlook, Concur, Ariba, etc.

Ability to manage multiple priorities, adapt quickly, and stay organized in a fast-paced environment

Strong judgment and ability to anticipate needs with minimal direction

High level of discretion and professionalism when handling sensitive information

Preferred Qualifications Associate’s or Bachelor’s degree (or equivalent experience)
Experience supporting senior leaders or working in a corporate environment

In-Office Collaboration We are a client-centric, relationship-based business. Working together, in-person, is foundational to how we achieve results. By fostering a culture of face-to-face collaboration, idea sharing, productivity and personal connection, we deliver for our stakeholders — clients, advisors, employees and shareholders. Our employees work in the office at least four (4) days per week, with flexibility to work from home one (1) day per week.

Some roles may require additional in-office time or different in-office expectations, and specific requirements will be discussed during the hiring process.

Visa Sponsorship Applicants must have a valid work authorization that does not now, or in the future, require visa sponsorship for employment in the United States (e.g., H-1B, F-1 CPT, F-1 OPT, TN).Base Pay Salary The estimated hourly rate for this role is $30.10 - $41.35 / hour. We have a pay-for-performance compensation philosophy. Your initial total compensation may vary based on job-related knowledge, skills, experience, and geographical work location.

In addition, most of our roles are eligible for variable pay in the form of bonus, commissions, and/or long-term incentives depending on the role. We also have a…