Executive Assistant with 20+ Years of Ops Excellence

Carol Lynn RieseƩ

• 443-***-**** • LynnrieseƩ@gmail.com

Summary:

Polished execuƟve support professional with 20 years of experience managing and coordinaƟng business and personal affairs for CEOs and senior execuƟves. Known for excepƟonal business acumen and composure in fast- paced, high-pressure environments. Skilled communicator with the ability to build trusted relaƟonships while upholding the highest level of confidenƟality. Proficient in MicrosoŌ Office Suite and a wide range of business applicaƟons and systems.

Experience:

Key Skills Management Recruitment/RetenƟon Staff Development & Training Green Belt in Six Sigma MicrosoŌ Outlook Concur SharePoint Outlook 10 & Teams Salesforce Zoom

OneNote Excel Report & Document PreparaƟon

Bookkeeping & Payroll Word Spreadsheet & Database CreaƟon Kronos Mercury Publisher

One Note Adobe Bookings

Arnold Ventures, Washington, DC

ExecuƟve Assistant to C-Suite ExecuƟves. 2023 – Present

Provide high-level administraƟve support to eight C-Suite execuƟves, managing complex calendars, travel arrangements, expense reports, and lobby reports.

Coordinate and maintain the annual grantee check-in schedule for the Public Finance team.

ParƟcipate in team meeƟngs for Public Finance, Infrastructure, and OPD, ensuring alignment and follow-through on acƟon items.

Onboard new employees, facilitaƟng smooth integraƟon into the organizaƟon.

Plan and coordinate events, team launches, and travel logisƟcs for the Public Finance and Health Care teams.

Manage visitor access through the security system and ensure conference rooms are prepared for meeƟngs. Created and implemented an administraƟve SharePoint site, developing and organizing team processes to be housed within the plaƞorm. Established a user-friendly homepage to share key documents and resources companywide, ensuring easy access to materials that needed to be shared across teams.

Collaborate with the Office Manager, ExecuƟve Assistants, and Board Members, providing on-site support as needed.

Streamline administraƟve processes by updaƟng exisƟng procedures and creaƟng new documentaƟon.

Lead coordinaƟon of onsite grantee events, retreats, and other large-scale meeƟngs.

Provide backup support to ExecuƟve Assistants during PTO or absences.

Partner with the Office Manager on companywide events, including holiday celebraƟons and volunteer iniƟaƟves. UnitedHealth Group / Optum – Columbia, MD

AdministraƟve Supervisor 2015 – 2023

Strategic administraƟve leader overseeing the Engagement & Support Team with five direct reports across six naƟonal and internaƟonal offices (Maryland, Tennessee, California, Missouri, Puerto Rico, and India). Served as Lead Business Segment Liaison (BSL), responsible for training, process improvement, and ongoing development of administraƟve staff.

Directed day-to-day administraƟve operaƟons, including calendar management, Ɵmekeeping, expense reporƟng, performance evaluaƟons, and onboarding.

Conducted weekly team meeƟngs, one-on-one coaching sessions, and monthly department reviews to ensure alignment with business goals.

Managed all aspects of recruitment, new hire onboarding, equipment setup, and applicaƟon access for domesƟc and offshore teams.

Approved supply purchases, managed vendor relaƟonships, and ensured cost-effecƟve procurement.

I partnered with IT and Help Desk teams to troubleshoot and resolve system issues, minimizing downƟme.

Led mulƟple employee engagement and retenƟon programs, including the HouseCalls IncenƟve Program, Career Development Team, and Mentorship Program.

Recognized for strengthening cross-funcƟonal communicaƟon and driving administraƟve process improvements across business segments.

UnitedHealth Group / Optum –Elkridge, MD

ExecuƟve Assistant 2013 – 2015

Delivered execuƟve-level administraƟve support to the Senior Vice President of OperaƟons & Technology and the Senior Vice President of the Contact Center.

Managed complex calendars, meeƟng coordinaƟon, event logisƟcs, and domesƟc/internaƟonal travel arrangements.

Served as the key point of contact for all communicaƟons, prioriƟzing and rouƟng correspondence with discreƟon and professionalism.

Coordinated leadership meeƟngs, staff town halls, and cross-departmental events, oŌen serving as liaison in the execuƟve’s absence.

Oversaw expense reporƟng, approvals, and budget tracking for both senior execuƟves.

Ensured smooth execuƟon of execuƟve travel, including iƟneraries, accommodaƟons, and on-site logisƟcs.

Maintained a high level of confidenƟality while managing mulƟple prioriƟes under Ɵght deadlines American Radiology – BalƟmore, MD

Physician PracƟce Coordinator 2008 – 2011

Oversaw physician scheduling and coverage across mulƟple hospitals and modaliƟes.

Managed Ɵme-off, sick leave, and call-out scheduling to ensure conƟnuous department operaƟons.

Processed physician payroll and Ɵmekeeping records with accuracy and compliance. American Radiology – BalƟmore, MD

ExecuƟve Assistant to CFO 2004 – 2008

Provided comprehensive execuƟve administraƟve support to the CFO, ensuring efficient communicaƟon and workflow within the organizaƟon.

Prepared and distributed execuƟve meeƟng agendas, reports, and minutes for senior leadership.

Represented the company at industry events such as the RSNA Conference, managing event logisƟcs and materials.

Served as interim physician scheduler, overseeing monthly radiologist scheduling and bi-weekly payroll. Kaiser Permanente – Silver Spring, MD

AdministraƟve Assistant 2002 – 2004

Supported the Director and Assistant Director of Radiology in daily operaƟons across 17 regional locaƟons.

Managed execuƟve calendars, department scheduling, and staffing coordinaƟon.

Oversaw temporary staffing contracts, vendor onboarding, and invoice processing

Administered Kronos Ɵmekeeping and leave approvals for department managers.

Recorded and distributed meeƟng minutes and performance reports for the radiology division. Training & CerƟficaƟons

• DC Notary (Valid through 8/14/2030)

• MD Notary (Valid through 5/12/2025)

• Paylocity E-Verify/Onboarding Training

• AdministraƟve Professional CerƟficaƟon, Apr 2025 (College of AdministraƟve Professionals)

• Chief of Staff CerƟficaƟon, Dec 2025 (Nova)

References provided upon request

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