Adejumo Adewumi
Business Administration Professional | Business Operations Officer & Executive Support
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About
Detail-oriented Executive Assistant with a Postgraduate Diploma in Business Administration and hands-on experience supporting senior executives in fast-paced healthcare and banking environments. Brings additional experience in business consulting, contributing to process improvement initiatives, operational analysis, and administrative strategy alongside core executive support responsibilities. Known for managing complex schedules, coordinating projects, and improving office efficiency, with a strong commitment to professionalism, discretion, and results-driven support.
Experience
Executive Assistant - OMG WeCA - Lagos, Nigeria
(2024-01)
- Provide executive and administrative support to senior leadership.
- Managed complex calendars, scheduled meetings.
- Prepared, edited, and managed official correspondence, reports, presentations, and confidential documents
- Handled sensitive information with a high level of discretion, maintaining strict confidentiality at all times
- Coordinated internal communications and followed up on delegated tasks to ensure timely completion
- Prepare meeting agendas, take minutes, and track action items to completion.
- Coordinate regional meetings, leadership sessions, and business reviews.
- Support strategic planning and operational activities across multiple teams.
- Monitor projects and follow up on deliverables to ensure timely execution.
- Coordinate business logistics, events, and executive engagements.
- Liaise with vendors and service providers to support business operations.
- Maintain accurate records, documentation, and filing systems.
- Support process improvements to enhance administrative efficiency.
- Supported overall office operations, contributing to improved workflows and adherence to organizational policies
Customer Service & Billing Officer - First Cardiologist Consultant - Lagos, Nigeria
(2022-12 - 2024-12)
- Greet patients professionally and manage patient registration and check-ins
- Schedule appointments for consultations, treatments, follow-ups, and evaluations
- Advise patients on available services and associated costs
- Handle phone calls and emails, providing timely and accurate responses
- Provide members and healthcare practitioners with information on benefits
- Process and approve medical pre-authorizations in line with health plans
- Advise patients on outstanding co-payments
- Maintain and update patient medical records accurately
- Share invoices with sponsors via email, WhatsApp, and other approved channels
- Maintain a positive, professional, and patient-centered attitude at all times
Customer Service Representative - Ecobank Plc - Lagos, Nigeria
(2017-01 - 2018-12)
- Delivered excellent customer service in a professional and courteous manner
- Responded promptly to customer inquiries via phone, email, and in person
- Provided accurate information on account status, balances, and banking services
- Resolved customer complaints efficiently to ensure satisfaction
- Maintained confidentiality and compliance with banking policies
Education
Postgraduate Diploma - Business Administration - National Open University (2025-12)
Higher National Diploma - Business Administration - Moshood Abiola Polytechnic (2019-01 - 2022-12)
National Diploma - Business Administration - Lagos State Polytechnic (2014-01 - 2016-12)
NYSC - National Youth Service Corps (2022-01 - 2023-12)
