Senior Administrative Assistant

GAS GLOBAL SERVICES; Westlake (TX); On-site; USD 45,000 - 65,000; Full time

Job summary

GAS Energy Staffing LLC is seeking a Senior Administrative Assistant to manage daily office operations and provide high-level admin support to executives in Westlake, TX. The role includes vendor coordination, budgeting, records, and facilities management to ensure efficient workflows and compliance with safety policies.

The ideal candidate will have strong Microsoft Word and Excel skills, 5+ years in office management, and a proven ability to organize, prioritize and communicate professionally

Qualifications

• 5+ years of office management or senior-level administrative services experience preferred.
• Proven abilities around supply management and inventory control.
• Organizational skills and attention to detail.
• Tracking budget expenses and developing standards.
• Promoting process improvement and reporting.

Responsibilities

• Perform administrative and clerical duties for executive-level management.
• Receptionist responsibilities at the office's front desk.
• Maintain company vehicle registrations and licenses.
• Assist with proposal development and proofreading.
• Manage office operations and procedures; organize filing and correspondence.
• Oversee security, safety, and daily office processes.

Skills

Office management

Executive support

Microsoft Word

Microsoft Excel

Vendor management

Communication

Budget tracking

Education

High School diploma or GED

Tools

Microsoft Office

Job description

Senior Administrative Assistant

JOB-10047937

Anticipated Start Date

November 16, 2026

Location

Westlake, TX

Type of Employment

Contract-to-Hire

Employer Info

They are North America’s largest and most respected construction and engineering organization. They take on important projects in every size. They are committed to conducting our business to the highest levels of integrity, ethics, and compliance with the law. The Company has sustained for nearly 130 years as an organization built on honesty and truthfulness. Their success allows us the opportunity to help others achieve their goals. They are committed to helping communities by involving Disadvantaged Business Enterprises, Minority Business Enterprises and Women Owned Business Enterprises on our projects. The Company has projects that involve all of the following business markets: Building, Industrial, Mining, Oil, Gas & Chemical, Power, Transportation and Water.

Job Summary

The Senior Administrative Assistant is responsible for overseeing daily office operations and providing administrative support to executive-level management. This role manages office procedures, vendor relationships, supplies, budgets, records, and facility coordination while ensuring efficient workflows, professional communication, and compliance with office safety and security procedures.

Job Description

• Responsible for performing administrative and clerical duties with and for executive-level management.


• Receptionist responsibilities at the office's front desk.


• Responsible for maintaining company vehicle registrations and licenses.


• Assist with proposal development and proofreading.


• Maintains office operations by organizing office procedures.


• Controlling office correspondence including regular mail, parcel pick-up and delivery, and overnight mail service.


• Designing filing systems.


• Coordinating, reviewing, and approving office supply requisitions.


• Provides historical reference by defining procedures for retention, protection, retrieval, transfer, and disposal of office records.


• Maintains office efficiency by planning and implementing office systems, layouts, equipment procurement, and leases.


• Designs and implements office policies by establishing standards and procedures; measuring results against standards; making necessary adjustments.


• Office-related invoice processing.


• Conference room schedule coordination.


• Keeps executive management informed by reviewing and analyzing special reports; summarizing information; identifying trends.


• Management of all office vendor relationships/purchases/repairs: fax/copy machine, phone system, cleaning service, etc. Ensure cost effectiveness of the same. Research services and propose cost-effective solutions as needed.


• Security procedure (daily office open and close, alarm system, oversee office key card and parking pass distribution)


• Contributes to team effort by accomplishing related results as needed.


• Manages office safety program – emergency procedures, muster stations, etc., coordination with the landlord.

Skills Required

• 5+ years of office management or senior-level administrative services experience preferred.


• Proven abilities around


• Supply management and inventory control


• Organizational skills


• Tracking budget expenses


• Developing standards


• Promoting process improvement


• Reporting skills


• Attention to detail


• Must be highly proficient in Microsoft Word and Excel


• Excellent customer service skills and attitude


• Professional phone manner


• Regular, reliable attendance.


• Work productively and meet deadlines timely.


• Communicate and interact effectively and professionally with supervisors, employees, and others individually or in a team environment.


• Perform work safely and effectively. Understand and follow oral and written instructions, including warning signs, signs, equipment use, and other policies.

Education/Training/Certifications

• High School degree or GED

Additional Requirements

• Work during normal operating hours (7:30 AM - 4:30 PM) to organize and complete work within given deadlines. Work overtime as needed as required.


• May work at various different locations and conditions may vary.

GAS Energy Staffing LLC is an Equal Opportunity Employer. Employment Decision are made without regard to race, color, religion, sex, sexual orientation, age, national origin, disability, protected veteran status, gender identity or any other factors protected by applicable federal, state or local laws.

GAS Energy Staffing LLC is an Equal Opportunity Employer. Employment Decision are made without regard to race, color, religion, sex, sexual orientation, age, national origin, disability, protected veteran status, gender identity or any other factors protected by applicable federal, state or local laws.