HR Administrator

HR Administrator

JOB-10045677

Anticipated Start Date

1/26/2026

Location

Houston, TX

Type of Employment

Contract Hire

Employer Info

Our client is a multi-faceted company providing full-service engineering services from start-up to completion phases, including conceptual front-end engineering, detailed engineering, procurement, construction management, and commissioning and start-up phases on small to mid-size projects.

Job Summary

The HR Administrator provides high-level administrative support across Human Resources, Accounting/Invoicing, and Recruiting to ensure efficient internal operations, regulatory compliance, and a positive employee experience. This role requires a detail-oriented professional with 2–5 years of experience who can manage sensitive HR and payroll processes, support recruiting activities, track compliance, and collaborate across multiple departments in a fast-paced, on-site environment.

Job Description

• Human Resources Administration
  • Manage the full onboarding and offboarding cycle, including checklists, communication, scheduling, pre-employment requirements (DISA drug screens, graded background checks), system entry, orientations, termination checklists, and COBRA processing.
  • Administer DISA compliance, including monthly random drug testing, audits, NABSC updates, bi-weekly invoice approvals, and maintaining background/drug test tracking spreadsheets for technically staffed employees.
  • Oversee benefits administration, including enrollments, terminations, monthly updates, employee inquiries, EOI monitoring, and Open Enrollment support.
  • Administer leave programs, including FMLA eligibility and documentation, as well as STD/LTD benefits support.
  • Manage regulatory and compliance activities, including TWC claims, garnishments, EEOC reporting, and maintenance of required HR documentation.
  • Support payroll-related processes, including employee inquiries, W-4 and direct deposit changes, and accurate data maintenance in HR systems (SMS fields including DL, PE, TWIC, addresses, etc.).
  • Maintain employee records, HR files, VOEs, tuition reimbursement requests, insurance forms, and compliance tracking spreadsheets.
  • Coordinate safety training and support HR and safety-related initiatives as needed.
• Accounting & Invoicing Support
  • Prepare and submit weekly, monthly technically staffed, and home office invoices, including printing and tracking timesheets, organizing signed documentation, and maintaining digital records by employee.
  • Coordinate with staff and clients to compile required reports, including TRACK, Vindly, Reconciliation Reports, and Billing Summary Reports.
  • Submit invoices via email or third-party portals and complete off-cycle invoice requests as needed.
• Recruiting Support
  • Sort and organize incoming resumes, maintain candidate files, and assist with recruiting processes.

Skills Required

• 2-3 years of experience in administrative, HR, accounting, or similar operational roles.
• Exceptional organizational skills with the ability to manage multiple priorities.
• Strong communication skills and a high degree of professionalism.
• Proficiency with Microsoft Office Suite (Excel, Word, Outlook).
• Experience with HRIS, benefits platforms, or invoicing software is a plus.
• Ability to maintain confidentiality and work independently with minimal supervision.

Education/Training/Certifications

• High School Diploma or GED required

GAS Global Services 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.