Management Assistant

onetowin data services; Antwerpen; On-site; EUR 42,000 - 56,000; Full time

Job summary

onetowin data services is seeking a senior Management Assistant to support senior stakeholders and oversee day-to-day operations. The role combines executive assistance, administration, event coordination, and office management, requiring hands-on, proactive leadership.

You will manage complex agendas for multiple stakeholders, coordinate logistics for meetings, and support leadership in day-to-day planning.

Qualifications

• 4–5 years of proven experience in a similar Executive/Management Assistant role.
• Experience in a dynamic environment with multiple stakeholders.
• Ability to prioritize, structure, and manage high workload.
• Experience combining administration, coordination, and operational support.

Responsibilities

• Executive Assistance: manage complex agendas, schedule meetings, coordinate logistics.
• Administration & mailbox management: handle shared mailbox, follow-ups, onboarding logistics.
• Event coordination: organize internal/external events and handle logistics.

Skills

Executive support

Agenda management

Multi-stakeholder coordination

Dutch & English

Independent working

Organizational skills

Tools

MS Office 365 (Outlook)

Job description

You act as a true “jack-of-all-trades”, able to manage multiple priorities, reduce operational workload, and ensure everything runs efficiently behind the scenes. As a Management Assistant, you will support senior stakeholders and ensure the smooth day-to‑day operations of the organization. This is a hands‑on, senior‑level support role combining executive assistance, administration, event coordination, and office management.

Responsibilities

• Executive Assistance
  • Manage complex agendas for multiple stakeholders
  • Schedule meetings and ensure logistics (rooms, materials, coordination)
  • Support leadership in day‑to‑day planning
• Administration & Mailbox Management
  • Manage shared mailbox and prioritize incoming requests
  • Handle administrative follow‑ups (POs, travel, onboarding processes, etc.)
  • Support hiring logistics (equipment, onboarding coordination)
• Event Coordination
  • Organize and support internal and external events (e.g. company events, team meetings, customer events)
  • Coordinate all practical aspects (logistics, communication, planning)
  • Ensure smooth execution and follow‑up
• Office & Facilities Support
  • Manage office supplies and day‑to‑day office needs
  • Support facilities topics (badges, deliveries, post handling, vendors, etc.)
  • Ensure a well‑functioning and organized workspace
• Project Support
  • Support ad hoc projects (incl. L&D‑related initiatives)
  • Provide administrative and operational assistance across teams
• Communication
  • Act as central point of contact for internal and external stakeholders
  • Ensure smooth and structured communication flow

Requirements & Qualifications

• 4 to 5 years of proven experience in a similar role as Executive/Management Assistant
• Experience in a dynamic environment with multiple stakeholders
• Ability to prioritize, structure, and manage high workload
• Experience combining administration, coordination, and operational support

Must Have Skills

• Strong organizational and planning skills
• Ability to manage multiple priorities simultaneously
• Experience with executive support (agenda management, coordination)
• Hands‑on and proactive mindset
• Strong communication skills (Dutch & English)
• Solid knowledge of MS Office 365 (especially Outlook)
• Ability to work independently and take ownership
• Flexible mindset (no strict 9-to‑5 mentality)

Nice To Have Skills

• Experience in event organization / coordination
• Experience in office management / facilities support
• Exposure to project support or L&D initiatives
• Familiarity with tools like Copilot or automation tools

Experience in a fast-growing or corporate environment