Role Purpose
The Office Manager & Assistant is the operational backbone of Market Securities’ Madrid office. They ensure a professional, well-functioning and compliant workplace for a fast-growing office, while providing day-to-day administrative support to all Madrid-based staff. The role combines office management, facilities coordination, health & safety liaison, and staff assistance. This is a hands-on, visible role requiring strong organisational skills, discretion and the ability to manage competing priorities in a fast-paced, international environment.
Key Responsibilities
Office Operations & Facilities
- Oversee the day-to-day running of the Madrid office, ensuring a professional, safe and productive environment
- Manage office supplies, equipment and access control.
- Coordinate local vendors and service providers (building management, maintenance, cleaning, courier and office suppliers)
- Oversee meeting room management and presentation readiness for client and internal meetings
- Support office space planning and desk allocation for new joiners and office moves.
Health, Safety & Compliance
- Act as the primary point of contact for health & safety matters in the Madrid office
- Liaise with QuirónPrevención (occupational health provider) regarding mandatory medical checks and office health & safety requirements.
- Maintain accurate records required for regulatory inspections or audits
- Maintain office records, supplier documentation and local administrative files in accordance with internal policies.
Administrative Support to Staff
- Act as the first point of contact for all office-related and administrative queries from Madrid-based employees
- Assist staff with travel bookings and expense coordination via Navan
- Support meeting logistics, courier services, archiving and general administrative needs
- Work closely with the Paris Office Manager to ensure consistency of office management practices and administrative processes across both locations.
- Provide ad hoc support to visiting Partners or senior management during office visits
Employee & Office Support
- Coordinate workspace readiness, office access and welcome arrangements for new joiners.
- Coordinate office access removal, equipment collection and workspace closure for leavers.
- Liaise with HR, IT and local service providers to coordinate employee office logistics.
- Support employee engagement initiatives and office-based events.
Candidate Profile
Experience
- 1–3 years’ experience in office management, administration or executive support within an international or professional services environment
- Familiarity with facilities coordination and vendor liaison is a plus
- Experience in a regulated financial services environment is an advantage
Skills & Competencies
- Fluent in Spanish and English (written and spoken) — mandatory
- French is a strong plus
- Strong organisational skills and attention to detail
- Discreet, reliable and comfortable working autonomously in a small office
- Proficient in Microsoft Office 365 (Outlook, Teams, Excel, Word)
- Familiarity with Navan or similar expense/travel tools is a plus
Education
- Degree in Business Administration, Management or a related field preferred but not required
Working Conditions
Full-time, office-based (on-site), Madrid centre.
Skills Required
- 1-3 years' experience in office management, administration or executive support within an international or professional services environment
- Fluent in Spanish and English (written and spoken)
- Proficient in Microsoft Office 365 (Outlook, Teams, Excel, Word)
- Ability to work full-time on-site in Madrid city centre
- Familiarity with facilities coordination and vendor liaison
- Familiarity with Navan or similar expense/travel tools
- French language skills
- Experience in a regulated financial services environment
- Degree in Business Administration, Management or related field
- Discreet, reliable and able to work autonomously in a small office
What We Do
Market Securities is one of the largest independent financial intermediaries in the world, providing institutional investors and experienced trading teams with superior market access, research, price discovery, and liquidity across asset classes. With desks specializing in equities, fixed income, FX, structured products, and derivatives, we connect investment banks, hedge funds, proprietary trading firms, and asset managers to the markets they need, with precision, speed, and a broker-first mindset. Our teams operate from eight key financial centers across Europe, North America, and Asia: London, New York, Paris, Madrid, Monaco, Dubai, Hong Kong, and Geneva. We also provide access to the Group’s Organised Trading Facilities in the EU and the UK. Founded by seasoned professionals, Market Securities is built on discretion, integrity, and independence, offering cross-asset solutions tailored to the needs of institutional clients.







