Executive Assistant in Slough

Executive Assistant to C-Suite

📍 London, United Kingdom

🏠 Office or Hybrid-work

🌍 Languages: English and (preferably) Finnish, Estonian, Latvian, Lithuanian, or Polish.

💼 Full-time, Permanent

Our client is a leading European defense-technology manufacturer with over 600 employees worldwide, driving innovation and resilience across Europe and beyond. The company develops cutting-edge solutions that strengthen Ukraine’s & Europe\’s defense capabilities and contribute to global security.

This is a mission-driven organization combining high technical standards with a powerful sense of purpose: supporting Europe\’s independence through technology, innovation, and international collaboration.

The Role

We’re seeking an experienced Executive Assistant to the C-Suite & Office Manager to support senior leadership and oversee day-to-day operations in the company’s London office.

You will be a key point of contact for executives, internal teams, and external partners, helping ensure smooth communication and efficient coordination across a fast-growing, international environment.

This role is ideal for a proactive, highly organized professional who thrives in dynamic settings and who feels inspired by the company’s mission.

Key Responsibilities

• Provide high-level executive support to the C-Suite, including calendar management, travel coordination, and meeting preparation
• Act as the main administrative point for the London office, ensuring smooth daily operations
• Liaise with global teams and stakeholders across multiple countries and time zones
• Support internal communications, documentation, and special projects
• Maintain confidentiality and handle sensitive information with discretion
• Contribute to a positive, mission-driven office culture

Requirements

• Proven experience as an Executive Assistant, Personal Assistant, or Office Manager in an international or fast-paced environment
• Fluent in English, written and spoken. Ideally, in a combination with Finnish, Estonian, Latvian, Lithuanian, or Polish.
• Strong organizational and multitasking skills with a proactive mindset
• Excellent communication and interpersonal skills
• A genuine interest in Europe\’s tech, innovation, and defense sectors is highly valued

What’s Offered

• The opportunity to be part of a purpose-driven company making a tangible impact
• Competitive compensation package
• International exposure and collaboration with top-tier professionals
• A dynamic, supportive, and values-led culture