Office Manager

WEBB Traders BV; Amsterdam; On-site; EUR 24,000 - 40,000; Part time

Benefits offered by this job

Hybrid schedule

Office 4-5 days

Learning & development

Meals provided

ClassPass access

Friday drinks

Amsterdam office

Travel reimbursements

Bonus scheme

Job summary

WEBB Traders BV in Amsterdam is seeking an office manager to support day‑to‑day operations for 20–30 hours per week. You will manage office operations, mail and calls, supplies, travel, events, and budgets, and act as an enthusiastic, hands‑on all‑rounder.

The role requires Dutch and English fluency, proven admin experience, strong multitasking, attention to detail, and a proactive attitude. You’ll collaborate with Marex colleagues and help maintain a welcoming, efficient office.

Qualifications

• Proven office management or administrative experience.
• Enthusiastic, social and energetic personality.
• Strong time management and ability to multi-task.
• Ownership mindset with proactive, hands-on mentality.
• Attention to detail and problem-solving skills.
• Ability to work independently.
• Excellent Dutch and English communication, written and verbal.
• Digital fluency across systems and platforms (Microsoft 365, Slack, Google Workspace).
• Mature, confident, and able to handle competing/last-minute requests.
• Genuinely service-minded, willing to support a range of tasks.

Responsibilities

• Manage office operations and day-to-day functions.
• Handle mail, emails, and phone calls.
• Oversee supplies and procurement.
• Liaise with facilities, cleaners, and building management.
• Organize events, meetings, and social activities.
• Coordinate travel and accommodations across Marex offices.
• Manage office budgets and expenses.
• Assist with HR-related tasks like onboarding and records.
• Maintain office policies and procedures.
• Provide flexible, hands-on support for any task.

Skills

Office management

Administrative experience

Multi-tasking

Ownership mindset

Attention to detail

Independent worker

Dutch and English

Digital literacy

Proactive attitude

Problem solving

Education

Bachelor Facility Management

Tools

Microsoft 365

Slack

Google Workspace

Job description

* Locally based candidates only *

Who we are

WEBB Traders, part of Marex, is a proprietary trading and electronic market-making business driven by data, technology, and a passion for financial markets. Using its own capital, WEBB provides liquidity across global cash equity and derivatives markets through advanced trading technology, quantitative research, and sophisticated automated trading strategies.

Founded in 2009 and headquartered in Amsterdam, with a significant presence in Paris, WEBB has established a strong reputation for innovation, collaboration, and trading excellence. As part of Marex, WEBB enhances the Group's electronic trading and market-making capabilities, combining its specialist expertise in quantitative trading and technology-driven liquidity provision with Marex's global reach, broad market access, and diversified financial services platform.

While you will be based in our Amsterdam office, you will also interact and collaborate with colleagues across the wider Marex organization. Join us to accelerate your career in the unique trading culture of openness, community, enjoyment, and boundary-free entrepreneurship.

Do you like to work in an entrepreneurial organization and are you looking for a wide-range job for 20-30 hours per week? Then you might be the office manager we are looking for!

Your role

• Manage office operations and ensure smooth day-to-day functioning, taking a hands-on approach to whatever needs to be done to keep the office running smoothly.

• Handle incoming and outgoing correspondence, including mail, emails, and phone calls.

• Oversee office supplies inventory and procurement, ensuring adequate stock levels.

• Managing relationships with facilities suppliers e.g. cleaning and maintenance, building management, office equipment suppliers, etc

• Organize company events, meetings, conferences and social activities, including Friday drinks and other team events.

• Assist with travel arrangements and accommodations for staff and executives, liaising with colleagues across Marex offices worldwide when coordinating travel, meetings and visits.

• Manage office budgets and expenses.

• Assist with HR-related tasks such as onboarding new employees, managing employee records, and coordinating employee benefits.

• Maintain office policies and procedures, ensuring compliance with company standards and regulations.

• Be a true all-round office supporter: no task is too big or too small. Whether it is arranging an event, picking up last-minute groceries, sorting out a storage room or dealing with an unexpected office issue, you are happy to roll up your sleeves and get things done.

Who you are

• You have proven office management, administrative or management assistant experience (this can also be gained during your studies, like a bachelor Facility Management)

• Colleagues and friends know you as an enthusiastic, social and energetic personality

• Time management is your middle name and you know how to multi-task and prioritise your work

• Taking ownership comes naturally to you, you have a hands-on and proactive mentality

• You pay attention to detail and you have problem-solving skills

• You have the ability to work independently

• You have strong communications skills, verbally and in writing both in Dutch and English

• You are digitally confident and comfortable working across different systems and platforms. You can easily switch between tools such as Microsoft 365, Slack, Google Workspace and other online systems.

• You have a mature and confident personality and know when to push back, set expectations and manage competing or last-minute requests.

• You stay calm when something urgent comes up and are comfortable deciding what needs to take priority.

• You are genuinely service-minded and enjoy supporting others. You understand that office management includes both bigger projects and the small, practical tasks that simply need to get done.

What we offer

• Embrace flexibility. Depending on your personal situation and wishes, we expect you in the office 4 or 5 days each week, and your working times may vary between 5 or 7 hours per day.

• Challenge yourself. Be part of the dynamic work environment and grow along with us.

• Develop yourself. Join internal and external learning & development opportunities to enhance your personal and professional growth.

• Treat yourself. Enjoy healthy and delicious meals delivered by Alma Sustainable Catering

• Stay fit. Sports facility access via ClassPass

• Keep the spirit up. Fun activities with your teammates on a regular basis and Friday drinks too

• Team up. A great office vibe in the heart of Amsterdam

• It's on us. Travel costs reimbursement or a Swap-bike

• And finally... A competitive reward package including benefits and a bonus scheme