Qilimanjaro is building full-stack superconducting quantum computers, from QPUs and cryogenic infrastructure to control electronics, racks, cabling, instrumentation and deployment software.

We are a small, hands-on team. Every hire shapes what we become.

Mission

As the company grows, the CEO needs a trusted right hand to protect her time and keep priorities on track. The Executive Assistant is that person: the operational backbone of the CEO’s office, anticipating needs, completing tasks and keeping the CEO focused on what matters most. The role demands discretion and sharp organisation.

- Calendar and schedule ownership. Run the CEO’s calendar end-to-end across multiple time zones, protect time for strategic priorities, and plan complex international travel from flights and accommodation to detailed daily agendas.
- Communications and first point of contact. Serve as the CEO’s gatekeeper: filter incoming requests and email, decide what reaches her, and draft or review correspondence on her behalf.
- Meeting preparation and follow-up. Prepare agendas and briefing notes ahead of key meetings, capture decisions and next steps, and chase owners so nothing slips.
- Administration and expenses. Manage expense reports, invoices and basic procurement linked to the CEO’s office, and keep documentation organised and easy to find.
- Email, CRM and file-system hygiene. Keep the CEO's inbox, contact records and document systems clean and current — triaging and organising email, maintaining accurate and up-to-date contacts in the CRM, and ensuring files are consistently named, filed and easy to retrieve so nothing is ever lost or duplicated.
- Projects and events.



Take ownership of one-off initiatives on the CEO’s behalf and co-deliver leadership offsites and company events alongside the Office Manager.
- High-impact presentations. Support building visually polished presentations for board meetings, investor updates and external keynotes.
- Stakeholder liaison. Be the bridge between the CEO and internal teams and external partners, keeping information flowing in both directions.
- Confidentiality. Handle sensitive company, financial and people information with absolute discretion.
- 4+ years of Executive Assistant experience supporting senior leadership, ideally in a fast-paced tech startup or scale-up.
- Fluent written and spoken English and Spanish, with Catalan being strongly preferred.
- Strong command of presentation and productivity tools (Notion, Google Workspace and/or Microsoft Office, including PowerPoint or Slides), as well as comfortable using AI tools to draft, summarise and prep.
- Excellent organisation and the ability to manage competing priorities and deadlines autonomously.
- Based in Barcelona, able to work in a hybrid model and eligible to work in Spain.
- Autonomous and resourceful. You take ownership, balance shifting priorities with ease and anticipate what’s needed before being asked.
- Discreet and trustworthy . You handle confidential information with care and earn the trust of those around you.
- A master communicator. Outstanding verbal and written communication in English, Spanish and Catalan.




- Experienced across borders. Comfortable coordinating international travel and multi-time-zone calendars.

Diversity and Inclusion:

At Qilimanjaro, inclusion and equal opportunities are part of our people-centric value. We are committed to creating a workplace where everyone feels valued and empowered to contribute, learn, and belong.

- Cobee flexible compensation (transportation, meals, and childcare support)
- Flexible working hours

You will:

Get the opportunity to build something amazing and unique, something that hasn't been done before

Work on ground-breaking projects and possibly solve massive challenges on a integral scale

Be at the intersection of research and industry, where biggest innovations happen

Make an enormous impact in a dynamic scale-up rather than being a small cog in a big machine

Work with super smart, knowledgeable and yet, very friendly people in Barcelona, one of the best cities in the world (picture a lot of sun, amazing food and friendly locals)

Get to be part of a start-up where growth on a company and individual level is the default

GDPR (General Data Protection Regulation):

DATA CONTROLLER: QILIMANJARO QUANTUM TECH S.L., B , Carrer de Veneçuela, 74, 08019 Barcelona (BARCELONA), Data Protection Officer: datos.com.PURPOSES: Participation in recruitment processes and reference verification.LEGAL BASIS: Implementation of pre-contractual measures.DISCLOSURES: None are an ticipated.DATA RETENTION: For the duration of the selection process.RIGHTS: You may exercise your rights of access, rectification, erasure, restriction, and data portability with the data controller. In case of any disputes, you may contact the AEPD (

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📌 Executive Assistant to the CEO (Barcelona)
🏢 Qilimanjaro Quantum Tech
📍 Barcelona