Office Manager

Apply now

Office Manager

As an Office Manager at Watermelon, you will support the efficient functioning of our company by assisting with all operational tasks.

Part-time · Utrecht

Highlights of this job:

  • Company: Watermelon

  • Core: (Generative) AI chatbots / B2B SaaS

  • Role: Office Manager

  • Responsibilities: Day-to-day operational tasks, invoice preparation, supporting recruitment, on/offboarding staff and facility management

  • Location: Utrecht / Hybrid

  • Hours: 20 - 24 hours spread across 5 days per week

  • Salary: €2,800 - €3,500 gross based on fulltime dependent on your experience

  • Start Date: 1st of July 2025

  • Work environment: Work in a dynamic, innovative team environment where collaboration and growth are prioritised!

About the job

We’re a fast-growing AI software company on a mission to build powerful, human-centric technology—and we’re looking for an Office Manager to keep our operations running smoothly and our people supported and empowered. As a small but ambitious team, we wear many hats, and we’re looking for someone who thrives in a dynamic environment. In this hybrid role, you’ll be the glue that holds our day-to-day operations together while also supporting some HR functions that are foundational to our growth.


What you’re going to do

  • Proactively assist in operational tasks to ensure smooth day-to-day business activities.

  • Process invoices, receipts, and expense claims in relevant systems.

  • Manage office supplies, groceries, and ensure a comfortable and welcoming office environment.

  • Support people and operations projects, such as creating procedure manuals or organising team events.

  • Maintain and update software tools like NMBRS, Zenvoices, Notion, Cledara and Homerun.

  • Handle all on- and off-boarding processes for new hires and leavers.

  • Support recruitment, including posting vacancies, screening candidates, and scheduling interviews.

Who we are looking for

  • You are proactive, resourceful, and highly organised with strong time management skills.

  • You have at least 1 year of experience in an Operations/Administration role, ideally in a B2B SaaS environment.

  • You are comfortable working with HR tools like NMBRS, Homerun and Notion, or willing to learn.

  • You have excellent communication skills in both written and verbal English.

  • You thrive in a dynamic, fast-paced startup environment and are eager to take initiative.

  • You are detail-oriented and precise, ensuring tasks are completed with accuracy.

What we offer

  • €2,800 - €3,500 gross based on fulltime dependent on your experience

  • Travel allowance, pension plan, and a budget for personal development.

  • 25 vacation days and a budget to set up your workspace.

  • A culture focused on growth and development.

  • The opportunity to contribute to a fast-growing international startup in the AI industry.

  • A friendly work atmosphere with colleagues you can laugh with and opportunities to participate in team activities.

Apply for the job

Do you want to join our team as our new Office Manager? Then we’d love to hear from you!

P.S.: We’re not looking for freelancers for this role.