IT Administrator

• Administer, maintain, and optimize Windows Server environments (2019, 2022, 2025, and later), including Active Directory, DNS, DHCP, Group Policy, IIS, File Services, and related infrastructure services.

• Manage and maintain Linux server environments (Ubuntu/CentOS) supporting web applications, databases, and critical infrastructure services.

• Design, deploy, and manage virtualization environments, ensuring high availability, scalability, performance, and efficient resource utilization.

• Deploy, configure, and maintain web hosting and application platforms, including IIS, cPanel, Plesk, Nginx, and Apache.

• Design, deploy, administer, and optimize Oracle Cloud Infrastructure (OCI) environments, including Compute, Networking, Storage, Load Balancers, and other cloud services.

• Configure and manage OCI Load Balancers and Web Application Firewalls (OCI WAF), including security policies, traffic rules, and application protection.

• Manage DNS infrastructure, SSL/TLS certificates, domain configurations, and secure application connectivity across on-premises and cloud environments.

• Monitor server and cloud infrastructure performance, availability, capacity, and resource utilization, proactively identifying and resolving potential issues.

• Troubleshoot complex production and infrastructure issues, perform root-cause analysis, and implement permanent corrective solutions to maintain high system availability.

• Implement and maintain backup, disaster recovery, and business continuity solutions for critical servers, applications, databases, and cloud workloads.

• Perform infrastructure security assessments, vulnerability remediation, system hardening, log analysis, and security incident investigation.

• Configure and manage firewalls, VPNs, routing, and network security policies, with hands-on experience in platforms such as MikroTik and DrayTek.

• Administer and maintain Microsoft SQL Server, PostgreSQL, and MySQL, including performance monitoring, database maintenance, backup, recovery, and troubleshooting.

• Implement and maintain infrastructure monitoring and alerting solutions for servers, applications, networks, and cloud resources.

• Manage system capacity, patching, upgrades, and lifecycle activities to ensure infrastructure remains secure, stable, and up to date.

• Collaborate with Software Development and Engineering teams to deploy, secure, troubleshoot, and maintain production applications and services.

• Support enterprise customers and internal teams in resolving complex server, cloud, networking, and infrastructure-related issues, while ensuring SLA compliance.

• Maintain accurate technical documentation, including infrastructure diagrams, configurations, procedures, recovery plans, and system inventories.

• Manage and maintain Yeastar IP PBX / VoIP infrastructure and associated IP phones as part of the company's communication infrastructure.

• Support and maintain Hikvision CCTV infrastructure, including NVRs, IP cameras, storage, and network connectivity when required.

Core Technologies

Servers & Operating Systems:
Windows Server 2019/2022/2025+, Linux (Ubuntu/CentOS)

Microsoft Infrastructure:
Active Directory, DNS, DHCP, Group Policy, IIS, File Services

Cloud:
Oracle Cloud Infrastructure (OCI), Compute, Networking, Storage, Load Balancers, OCI WAF

Virtualization:
VMware / Hyper-V and related virtualization technologies

Web & Hosting:
IIS, Nginx, Apache, cPanel, Plesk

Databases:
Microsoft SQL Server, PostgreSQL, MySQL

Networking & Security:
MikroTik, DrayTek, Firewalls, VPN, Routing, SSL/TLS, ModSecurity, Network Security

Monitoring & Operations:
Infrastructure Monitoring, Performance Monitoring, Log Management, Backup & Disaster Recovery

Communication & Surveillance:
Yeastar, SIP, VoIP, Hikvision CCTV

Requirements

• Experience Level: A minimum of 3-7 years of demonstrable experience in an IT Administrator or similar role, showcasing your proficiency as an Experienced professional.

• Technical Mastery: Proven expertise in System Administration, with hands-on experience across Windows Server and Linux environments.

• Network & Cloud Proficiency: Strong command of Networking principles, including configuration and management of MikroTik devices, and experience with Oracle Cloud Infrastructure (OCI).

• Security Acumen: A solid understanding and practical experience in implementing robust Cybersecurity measures.

• Identity & Data Management: Proficient in administering Active Directory and managing SQL Server databases.

• Operational Technologies: Experience with VoIP systems and CCTV infrastructure.

• Virtualization Skills: Practical experience with Virtualization technologies.

• Problem Solver: Exceptional Troubleshooting and Problem Solving skills, coupled with a strong commitment to providing excellent Technical Support.

• Communication: Excellent communication and interpersonal skills, essential for collaborative team environments and effective user support.