Sydnie Mosley
McKinsey & Company
Alexandria,VA
13
years of professional experience
Executive Assistant and executive operations professional with 12+ years of progressive experience supporting C-suite leaders, Boards of Directors, senior partners, and high-performing teams across consulting, nonprofit, and corporate environments. Trusted strategic partner known for protecting executive bandwidth, anticipating needs, and driving operational efficiency across complex, fast-moving priorities. Brings direct experience supporting executive and Board leadership within a mission-driven food-bank organization, complemented by sophisticated executive support experience in a global consulting environment. Recognized for discretion, sound judgment, proactive problem-solving, and the ability to bring structure, clarity, and calm to high-pressure environments.
Work History
Executive Assistant
2 Years 5 Months- Strategic administrative partner to one Senior Partner and one Partner in a high-performance global consulting environment, supporting complex leadership priorities, client engagements, and time-sensitive business needs.
- Serve as a trusted extension of senior leadership, managing competing priorities and optimizing executive time, focus, and availability.
- Anticipate executive needs and proactively resolve conflicts across complex calendars spanning global time zones, client engagements, and internal priorities.
- Manage and prioritize executive communications, filtering and escalating critical matters to support timely decision-making.
- Coordinate end-to-end domestic and international travel, including logistics, contingency planning, and executive readiness.
- Orchestrate high-level internal and client meetings, coordinating preparation, logistics, stakeholder alignment, and timely follow-through.
- Maintain strong relationships with client executive assistants and internal stakeholders to facilitate alignment and seamless execution across engagements.
- Prepare and submit expense reports with accuracy and adherence to firm standards and compliance requirements.
- Provide backup support across the EA team, maintaining continuity of executive operations during high-volume periods and absences.
- Exercise discretion and sound judgment when handling confidential, sensitive, and time-critical information.
Coordinator, Project & Corporate Services
3 Years 9 Months- Delivered operational, project, and corporate support across federal contracting, assessment development, proposal management, and organizational initiatives.
- Coordinated end-to-end development of client deliverables, including testing materials, technical reports, and proposal documentation, ensuring alignment with client expectations.
- Performed quality-control reviews to ensure accuracy, consistency, and compliance of final submissions, enhancing overall submission quality.
- Developed and packaged over 500 employment testing materials to support federal hiring initiatives, streamlining the recruitment process.
- Conducted quality-control reviews to ensure accuracy, consistency, and compliance of final submissions.
- Produced and packaged 500+ employment testing materials that support federal hiring initiatives.
- Served as a liaison between clients and internal teams, facilitating communication, resolving issues, and maintaining project momentum.
- Collaborated with a six-person core team to execute hiring events, client deliverables, and administrative operations.
- Standardized and reformatted resumes and personnel documentation to align with client requirements and templates.
- Designed and implemented a centralized consultant capability-tracking system for 45 professionals, enabling leadership to rapidly match talent to project needs, reducing manual resume review time and improving staffing efficiency.
Executive Administrative Assistant
3 Years 8 Months- Provided high-level executive, Board, and operational support within a mission-driven food-bank organization.
- Provided administrative support to the CEO, CDO, CFO, COO, and Board of Directors, managing sensitive information and supporting organizational leadership.
- Coordinated complex scheduling, travel, communications, and administrative priorities for senior leadership, ensuring seamless operations.
- Executed enterprise-wide events, including annual staff conference and Board-level functions, enhancing organizational engagement.
- Developed repeatable planning frameworks and documentation to improve consistency and efficiency of organizational events.
- Partnered with IT to design and implement an internal supply and order-tracking system, improving organizational visibility and workflow efficiency.
- Facilitated finance operations, including donation processing, check deposits, invoice management, and tracking of financial records, ensuring accuracy and compliance.
- Digitized and processed more than $1 million in donations with zero discrepancies during a COVID-era operational transition.
- Managed office systems including mail operations, equipment maintenance, and administrative reporting tools.
- Provided onboarding and training support for new administrative and front-desk staff.
Front Desk Coordinator
2 Years 10 Months- Coordinated high-volume administrative operations as primary liaison for volunteers, vendors, community service participants, and internal stakeholders, ensuring smooth communication and engagement.
- Oversaw check-in systems, attendance tracking, and communication follow-ups to maintain accurate reporting and engagement continuity.
- Administered court-ordered community service program intake, documentation, and compliance reporting.
- Oversaw intake, documentation, and compliance reporting for court-ordered community service program, maintaining accurate records and regulatory adherence.
- Managed high-volume administrative operations and served as a primary liaison for volunteers, vendors, community service participants, and internal stakeholders.
- Facilitated cross-departmental initiatives by developing training materials, setting up events, and managing administrative projects to enhance operational efficiency.
- Recognized for professionalism, consistency, and ability to manage high-volume public-facing operations with accuracy and care.
Education
Bachelor of Arts - Mass Communications / Print Journalism
Skills
C-Suite & Board Support
Executive Communications
Complex Calendar Management
Meeting & Event Strategy
Domestic & International Travel
Stakeholder coordination
Project management
Process Improvement
Operational Efficiency
Confidential Information Management
Time management
Research preparation
Timeline
Executive Assistant
McKinsey & Company
05.2024 - CurrentRead More
Coordinator, Project & Corporate Services
Personnel Decisions Research Institutes, LLC
08.2020 - 05.2024Read More
Executive Administrative Assistant
Harvesters – The Community Food Network
09.2016 - 05.2020Read More
Front Desk Coordinator
Harvesters – The Community Food Network
11.2013 - 09.2016Read More
Lincoln University
Bachelor of Arts from Mass Communications / Print Journalism
Read More
Personal Information
Title: Executive Assistant | Executive Operations | C-Suite & Board Support