IT Systems and Network Administrator

Job Title : IT Systems & Network Administrator

Company/Department: Technology Department

Reports To : Technology Director

FLSA Status: (Exempt, Non-Exempt): Exempt

General Description :
Sinopec Tech Houston LLC is seeking a hands-on IT Systems & Network Administrator to support the daily operations and maintenance of core IT systems and network infrastructure at our Houston R&D center.

This role is responsible for maintaining virtual desktop infrastructure (VDI), network and server systems, user identity services, and source code management platforms, while coordinating with third-party providers and Sinopec headquarters IT teams as needed.

The ideal candidate has practical experience in enterprise systems and network administration, Active Directory management, and vendor coordination.

Essential Functions:

• Administer and maintain VDI servers and user virtual desktop environments, including routine monitoring, troubleshooting, user support coordination, and communication with external service providers.
• Monitor the status of the company’s dedicated network line to Hong Kong; identify connectivity or performance issues and coordinate with service providers for troubleshooting and resolution.
• Perform routine inspection, monitoring, and maintenance of Commvault storage servers and other system servers; coordinate with vendors for maintenance support and issue resolution.
• Maintain and support corporate office network infrastructure, including routers, switches, firewalls, and wireless access points.
• Monitor network performance and troubleshoot connectivity issues to ensure stable and secure office network services.
• Maintain firewall rules, VPN configurations, and related network security settings in accordance with corporate IT security standards.
• Administer Active Directory (AD) and related identity management tasks, including employee account provisioning, access changes, password resets, and deprovisioning.
• Support user identity and access management processes to ensure proper authorization and account security.
• Administer and maintain source code management platforms, including SVN, GitLab, and TFS, and support routine account, access, and system maintenance tasks.
• Perform routine system and server health checks, document incidents and configuration changes, and assist with coordination of technical support activities with Sinopec headquarters IT teams and external vendors.
• Assist with internal IT documentation, standard operating procedures, and technical records to support operational continuity and compliance.

Required Knowledge, Skills, and Abilities:

• Working knowledge of enterprise network administration (TCP/IP, LAN/WAN, routing, switching, firewall, VPNs, wireless).
• Hands-on experience with server monitoring and systems administration.
• Experience with VDI environments and user virtual desktop support.
• Familiarity with storage backup systems and enterprise server maintenance; experience with Commvault is strongly preferred.
• Experience with Active Directory administration, including user account provisioning, access management, and password reset support.
• E xperience managing source code repositories (SVN, GitLab, TFS) is a plus.
• Ability to coordinate effectively with third-party service providers for troubleshooting, maintenance, and support.
• Strong organizational skills and attention to detail in documenting technical procedures, incidents, and system changes.
• Ability to work independently and in a small team environment.
• Strong verbal and written communication skills.
• Proficiency in both English and Mandarin Chinese (spoken and written).

Required Education, Credentials, Licenses and Experience:

• Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or a related field.
• 3+ years of professional experience in systems administration, network administration, or enterprise IT operations.
• Experience working with vendors or service providers preferred.
• Relevant certifications (CCNA, CompTIA Network+, Security+, or Microsoft) are a plus.
• Experience in global or distributed IT environment is a plus.
• Occasional off-hours support for system maintenance or incident response.
• Must be legally authorized to work in the United States.

Disclaimers: The foregoing statements reflect the general duties, responsibilities and competencies considered necessary to perform the essential functions of this role and should not be considered as a detailed description of all the work requirements of this position. The specifics of this job description will be updated from time to time, as appropriate and required.
STHC is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. All employment is decided on the basis of qualifications, merit, and business need.
If you need assistance or an accommodation due to a disability, you may contact us at [email protected] or you may call us at 1-832-831-1200.
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To all recruitment agencies: We are not responsible for any fee related to unsolicited resumes from 3rd party staffing and recruiting agencies (whether submitted through this website or sent directly to employees) unless a written agreement is in place between the agency and Sinopec Tech Houston, LLC. (“Company”) and an authorized Company representative makes a written request to the agency to assist with this requisition. Similarly, no fee will be paid for candidates who apply and claim to be represented by an agency. Any unsolicited resumes, CVs, or other candidate information submitted by an agency will become the property of Company, and no fee will be paid in the event such candidate is hired.