Executive Assistant & Office Support

Arcesium LLC
Lisbon, Portugal
On-siteCareer-pivot friendly

Who this role is best for

Geared toward candidates with global administrative experience comfortable with multi-location coordination and leadership support.

Best fit for

  • Candidates with 4-6 years of executive assistant experience in global organizations, especially those supporting senior leaders.
    — “4-6 years of relevant experience as an executive assistant, ideally supporting senior leaders in a global or multi-location organisation.”
  • Individuals who can manage cross-functional collaboration and handle high-level administrative tasks with ease.
    — “Partner with local and global teams (HR, Workplace, IT, Finance) on office and administration needs for Europe.”
  • Professionals who are fluent in English and have a strong grasp of Microsoft Office tools, with a willingness to learn new systems.
    — “Proven technical skills, particularly with Microsoft Office (Outlook, Excel, PowerPoint, Teams), and comfort learning new tools quickly.”

Things to consider

  • The role may involve handling confidential information, requiring a high level of discretion and trustworthiness.
    — “Absolute discretion when handling confidential information.”
  • Candidates should be open to ad hoc responsibilities and be able to manage multiple projects simultaneously.
    — “Take on ad hoc projects assigned by the business leader and leadership team, driving them to completion and keeping stakeholders informed.”

How to stand out

  • Demonstrate your ability to manage complex calendars and time zone coordination for global teams.
    — “Manage and coordinate calendars for Arcesium leaders, including globally scheduled meetings, proactively handling time zones, priorities, and conflicts.”
  • Emphasize your experience in managing office logistics and events in a professional environment.
    — “Support team meetings, social gatherings, town halls, and office events, from concept to follow-up.”
  • Demonstrate your ability to provide on-the-ground support for high-level executives during travel.
    — “Provide on-the-ground support when ExCo members travel to Lisbon, including transfers, hotel and restaurant bookings, itineraries, and meeting logistics.”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • manage local bookings and administration for the Lisbon office
  • support team meetings and events
  • coordinate calendars for Arcesium leaders
Typical background
4-6 years of relevant experience as an executive assistant

Skills & requirements

Required

Office ManagementCalendar ManagementEvent CoordinationTechnical SkillsDiscretion

Preferred

Portuguese

Stack & domain

Microsoft Office (outlook, Excel, Powerpoint, Teams)BookingAdministrationFacilities CoordinationTeam MeetingsSocial GatheringsOffice EventsCalendar ManagementTravel CoordinationVisa CoordinationItinerary ChangesAnalyticalOrganisationalAttention To DetailMulti-taskingCommunicationDiscretionOffice Support

About the role

Original posting from Arcesium LLC via Greenhouse

Company Overview

Arcesium is a global financial technology firm that solves complex data-driven challenges faced by some of the world’s most sophisticated financial institutions. We constantly innovate our platform and capabilities to meet tomorrow’s challenges, anticipate the risks our clients encounter, and design advanced solutions to help our clients achieve transformational business outcomes.   

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.

Arcesium is growing in Europe, and we're looking for an Executive Assistant to support our office and administration area in Lisbon, as well as our global leadership. You'll keep the day-to-day running smoothly, help leaders make the most of their time, and be a trusted point of contact for the people around you.

What You'll Do

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.

What You'll Need

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.

Recruiting Security

Emails from genuine Arcesium recruiters who are employees of the company will always come from the @arcesium.com domain. In some cases, you may also be contacted by independent search firms engaged to recruit on our behalf; emails from their employees should always come from their firm's applicable domain. We'll never ask for your banking information or any payment as part of the recruiting process. If something seems off or you're contacted by an unexpected third party, please reach out to us at careers@arcesium.com (US/UK), careers-india@arcesium.com (India) or careers-europe@arcesium.com (Portugal/Sweden). 

Arcesium is an equal opportunity employer.

Source: Arcesium LLC careers (Greenhouse)

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