Executive Assistant & Office Support

Financial technology is a high-growth industry as change and innovation continue to disrupt the status-quo and prompt major transformation. Arcesium is at a particularly interesting time in our own growth as we look to leverage our successfully established market position and expand operations in pursuit of strategic new business opportunities. We value intellectual curiosity, proactive ownership, and collaboration with colleagues, and we empower you to meaningfully contribute from day one and accelerate your professional development.

• Manage local bookings and administration for the Lisbon office, including meeting rooms, vendors, supplies, deliveries, and facilities coordination.
• Support team meetings, social gatherings, town halls, and office events, from concept to follow-up.
• Partner with local and global teams (HR, Workplace, IT, Finance) on office and administration needs for Europe.
• Manage and coordinate calendars for Arcesium leaders, including globally scheduled meetings, proactively handling time zones, priorities, and conflicts.
• Provide on-the-ground support when ExCo members travel to Lisbon, including transfers, hotel and restaurant bookings, itineraries, and meeting logistics.
• Support leadership travel as needed. Our Sweden-based team manages most travel, but you will be open to picking up bookings, visa coordination, and itinerary changes when required.
• Take on ad hoc projects assigned by the business leader and leadership team, driving them to completion and keeping stakeholders informed.

• 4-6 years of relevant experience as an executive assistant, ideally supporting senior leaders in a global or multi-location organisation.
• Strong analytical and organisational skills, with excellent attention to detail and the ability to manage multiple projects at once.
• Excellent written and verbal communication skills in English. Portuguese is a strong plus.
• Proven technical skills, particularly with Microsoft Office (Outlook, Excel, PowerPoint, Teams), and comfort learning new tools quickly.
• Absolute discretion when handling confidential information.