Sr. Site Administrative Assistant

Lonza; Houston, Northern (TX, KY); Hybrid; Confidential; Full time

Job summary

Lonza in Houston, TX is seeking an experienced Administrative Assistant to support senior leaders with calendar management, travel arrangements, and confidential project tasks on a fully on-site basis.

Ideal candidates will have 5+ years of administrative experience, strong Microsoft 365 skills, and exceptional organizational abilities to thrive in a fast-paced environment. Relocation assistance is available for eligible candidates and families.

Qualifications

• Associate or Bachelor’s degree required.
• 5+ years of Administrative Assistance experience.
• Proficient with Microsoft 365 (PowerPoint, Word, Excel, Teams, CoPilot and Concur).
• Experience working independently with minimal supervision.
• Strong organizational and multitasking abilities.

Responsibilities

• Organize events, guest visits, and welcome visitors to the site.
• Coordinate and manage calendars for senior leaders and executives.
• Arrange complex travel plans and prepare meeting materials.
• Assist with pre-, during-, and post-meeting action item follow-up.
• Prepare executive presentations and provide confidential administrative support.
• Handle confidential information with discretion and professionalism.
• Support expense management and procurement needs as required.
• File and organize documents in electronic systems and maintain records.

Skills

Organizational skills

Independent worker

Interpersonal skills

Problem solving

Attention to detail

Education

Associate or Bachelor's degree

Tools

Microsoft 365

PowerPoint

Word

Excel

Teams

CoPilot

Concur Expenses

Job description

The actual location of this job is in Houston, TX, US. Relocation assistance is available for eligible candidates and their families, if needed.

This is a fully site‑based role. Working together in person supports close, real‑time collaboration and the technical precision needed to manufacture medicines to the highest quality and safety standards.

What you will get:

An agile career and dynamic working culture.

An inclusive and ethical workplace.

Compensation programs that recognize high performance.

A variety of benefits dependent on role and location.

Complete a broad variety of administrative tasks with extreme confidentiality.

Organize events, guest visits, and welcome visitors to the site.

Arrange complex travel plans, itineraries, reservations, presentation creation/review, agendas, and compile documents for meetings.

Assist with pre-, during, and post-meeting action item follow-up.

Coordinate and manage the schedules of SVP and other senior leaders, ensuring availability for collaboration with collaborators and meeting project deadlines.

Research, prioritize, and follow up on issues and concerns addressed to executives, determining appropriate actions or responses.

Prioritize conflicting needs; handle matters expeditiously, proactively, and follow through on projects to successful completion under deadline pressures.

Support expense management and order supplies and materials as needed.

File and organize documents in electronic systems.

Perform other duties as assigned.

What we are looking for:

Associate or Bachelor's degree, with 5+ years of Administrative Assistance experience.

Proficient with Microsoft 365, including PowerPoint, Word, Excel, Teams, CoPilot and Concur Expenses.

Experience working independently with little to no supervision

Coordination of meetings, working lunch preparations, executive presentations and additional administrative tasks as needed.

Exceptional organizational skills with the ability to prioritize multiple tasks seamlessly and with excellent attention to detail.

Excellent interpersonal skills and the ability to build relationships with diverse collaborator groups.

Proven ability to identify and resolve problems efficiently; gather and analyze information; develop solutions; use reason and judgment.

Demonstrates accuracy and thoroughness, looks for ways to improve and promote quality, and applies feedback to improve performance.

Highly resourceful team player, with the ability to also be extremely effective independently.

Proven ability to handle confidential information with discretion, adaptable to competing demands, and demonstrate the highest level of customer/client service and response.

Demonstrated ability to achieve high-performance goals and meet deadlines in a fast-paced environment.

Flexibility to come in early for special events and occasionally stay later to wrap up.

About Lonza

At Lonza, our people are our greatest strength. With 30+ sites across five continents, our globally connected teams work together every day to manufacture the medicines of tomorrow. Our core values of Collaboration, Accountability, Excellence, Passion and Integrity reflect who we are and how we work together. Everyone's ideas, big or small, have the potential to improve millions of lives, and that’s the kind of work we want you to be part of.

Innovation thrives when people from all backgrounds bring their unique perspectives to the table. At Lonza, we value diversity and are committed to creating an inclusive environment for all employees. If you're ready to help turn our customers’ breakthrough ideas into viable therapies, we look forward to welcoming you on board.