Senior Administrative & IT Operations Assistant

Enchanted Rock Management LLC; Houston (TX); On-site; USD 55,000 - 75,000; Full time

Benefits offered by this job

Competitive Pay

Medical, Dental, Vision, and Insurance

403(k) Retirement Plan & Company Match

Paid Time Off – Sick & Vacation Time

Paid Holidays

Job summary

ERock is seeking a Senior Administrative Assistant to provide high-level administrative support to multiple senior leaders. The role encompasses calendar management, travel coordination, meeting logistics, expense reporting, and document preparation in a fast-paced environment.

The ideal candidate will be highly organized, proactive, and capable of handling competing priorities with discretion. Experience supporting executives in manufacturing, energy, or technology settings is a plus.

Qualifications

• 5+ years of administrative, executive support, office management, or related experience.
• Experience supporting multiple leaders concurrently.
• Advanced proficiency with Microsoft Outlook, Word, Excel, PowerPoint, and Teams.
• Strong calendar management and travel coordination experience.
• Experience processing expenses, invoices, or basic bookkeeping activities.
• Excellent written and verbal communication skills.
• Strong organizational skills with the ability to manage multiple priorities and deadlines.

Responsibilities

• Manage complex calendars for multiple leaders, including scheduling meetings and resolving conflicts.
• Coordinate domestic and international travel arrangements, including flights, hotels, transportation, and itineraries.
• Prepare meeting agendas, presentations, reports, and other business documents.
• Organize and coordinate internal leadership meetings and offsite events.
• Track action items and follow up with stakeholders to ensure timely completion.
• Screen and prioritize incoming communications and requests.
• Assist with department budgeting, invoice processing, purchase requisitions, and expense reporting.
• Support vendor setup, purchase orders, and contract administration activities.
• Maintain records, files, and confidential business documents.
• Coordinate onboarding logistics for new team members, including workspace and equipment.
• Assist with planning team events, training sessions, and employee engagement activities.
• Serve as a point of contact between leadership, employees, vendors, and external partners.
• Process invoices and ensure timely submission for payment.
• Reconcile corporate credit card expenses and travel-related expenditures.
• Assist with tracking departmental budgets and spending.
• Support month-end administrative activities and reporting.
• Maintain accurate records of expenses, contracts, and vendor documentation.

Skills

Outlook proficiency

Excel proficiency

Calendar management

Travel coordination

Expense processing

Communication

Organizational skills

Administrative support

Tools

Microsoft Office Suite

Job description

ERock is seeking a Senior Administrative Assistant to provide high-level administrative support to multiple senior leaders. The role encompasses calendar management, travel coordination, meeting logistics, expense reporting, and document preparation in a fast-paced environment.

The ideal candidate will be highly organized, proactive, and capable of handling competing priorities with discretion. Experience supporting executives in manufacturing, energy, or technology settings is a plus.