- Install, configure, and maintain operating systems (Linux, Unix, Windows Server) on both physical and virtual environments.

- Design and implement scalable system infrastructure including virtualization (e.g., VMware, KVM), storage (SAN/NAS), and cloud integration (AWS, Azure, GCP).

- Manage Windows Server environments including Active Directory, Group Policy, DNS, DHCP, and IIS.

- Perform system hardening and ensure compliance with security best practices and company policies.

- Monitor and tune system performance to support high availability and large-scale workloads.

- Troubleshoot and resolve system and infrastructure issues (both Linux and Windows environments) in a timely manner.

- Document system architecture, configuration changes, and standard operating procedures.

- Manage and support backup/recovery processes and disaster recovery planning.

- Collaborate with cross-functional teams, including developers and overseas operations, to ensure system reliability and deployment efficiency.

- Participate in automation and configuration management efforts (e.g., Ansible, Terraform, PowerShell, shell scripts).

- Collaborate with DevOps and development teams to support and maintain CI/CD pipelines using tools such as GitLab CI, Jenkins, or GitHub Actions.

- Automate deployment processes and infrastructure provisioning to improve operational efficiency and reduce manual intervention.

- Monitor CI/CD workflows and troubleshoot build/deployment failures.

- Bachelor’s Degree in Computer Engineering, Computer Science, Information Technology or related fields.

- At least 3 years of hands-on experience in Linux/Unix and Windows Server administration, including setup, configuration, and troubleshooting.

- Experience managing Windows Server roles and services (Active Directory, DNS, DHCP, IIS, File Services).

- Experience with open-source technologies such as Apache/Nginx, MySQL/MariaDB, Redis, etc.

- Knowledge of system security (e.g., SELinux, Group Policy Hardening, firewalls) and patch management.

- Familiarity with virtualization platforms and cloud services (e.g., VMware, Hyper-V, AWS, Azure).

- Understanding of network protocols (TCP/IP, DNS, DHCP, etc.) and server-side networking configuration.

- Experience in performance tuning and capacity planning for mission-critical systems.

- Scripting skills in PowerShell, Bash, Python, or other languages for automation tasks.

- Experience with CI/CD tools and processes (e.g., Jenkins, GitLab CI, GitHub Actions).

- Familiarity with Infrastructure as Code (IaC) tools such as Terraform or Ansible is a plus.

- Strong problem-solving and communication skills, with ability to work under pressure and tight deadlines.

- Relevant IT certifications such as RHCE, LPIC, CompTIA Server+, Microsoft Certified: Windows Server Hybrid Administrator Associate are a plus.