Senior Administrative Assistant, IT

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

Description

We are ERock!

ERock (NYSE: EROC) is enabling energy for a new era. ERock delivers onsite utility-grade power that gets customers up and running quickly, while supporting long-term grid development. ERock’s proprietary natural gas generators help critical facilities address grid constraints, interconnection delays, and outage risks while accelerating speed-to-power for new and expanding operations. Trusted by data centers, utilities, manufacturers, healthcare systems and government organizations, ERock engineers for rapid deployment, long-duration reliability, low local emissions, and scalable performance to meet the evolving energy demands of today and tomorrow.

Position Summary:

The Senior Administrative Assistant provides high-level administrative and operational support to multiple senior leaders, including executive and department-level leadership. This role serves as a key organizational resource responsible for calendar management, travel coordination, meeting logistics, expense reporting, document preparation, and various administrative and operational tasks. The ideal candidate is highly organized, detail-oriented, proactive, and capable of managing competing priorities in a fast-paced environment.

Key Responsibilities:

Executive & Administrative Support

• Manage complex calendars for multiple leaders, including scheduling meetings, coordinating priorities, 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 meetings, leadership meetings, and offsite events.
• Track action items and follow up with stakeholders to ensure timely completion.
• Screen and prioritize incoming communications and requests.

Office & Operational Support

• 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, equipment, and scheduling.
• Assist with planning team events, training sessions, and employee engagement activities.
• Serve as a point of contact between leadership, employees, vendors, and external partners.

Financial & Administrative Coordination

• 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.

Requirements

Basic (Required) Qualifications:

• 5+ years of administrative, executive support, office management, or related experience.
• Experience supporting multiple leaders simultaneously.
• 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.

Preferred Qualifications:

• Experience supporting VP, CIO, CTO, or other executive-level leaders.
• Experience working in a manufacturing, energy, engineering, or technology environment.
• Familiarity with ERP, accounting, or procurement systems.
• Experience coordinating vendor relationships and purchase orders.

Key Competencies:

• Professionalism and discretion with confidential information.
• Strong attention to detail.
• Ability to anticipate needs and solve problems proactively.
• Excellent time management and prioritization skills.
• Customer-service mindset and ability to work across all levels of the organization.
• Ability to operate independently with minimal supervision.

Benefits:

• Competitive Pay
• Medical, Dental, Vision, and Prescription Drug Insurance
• Company-Paid Life Insurance
• Flexible Spending Account (FSA)
• Health Savings Account (HSA) with a company contribution
• Wellness Programs and Incentives
• 401(k) Retirement Plan & Company Match
• Paid Time Off – Sick & Vacation Time
• Paid Holidays

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

ERock is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.