Senior Systems Administrator - Infra, Automation & Security

BSO

Davao City

On-site

PHP 600,000 - 800,000

Full time

5 days ago
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Job summary

DataOne seeks a System Administrator to install, configure, and maintain robust IT systems and infrastructure across Windows and Linux environments. You will monitor performance, implement backups, script in Bash/Python, and automate deployments with Ansible and GitLab CI/CD.

Collaborating with the CTO and IT Infrastructure team, you will help ensure security, reliability, and scalable operations for international projects while documenting configurations and procedures.

Qualifications

  • 5+ years of experience in System Administration, IT Infrastructure, or a similar technical position.
  • Strong experience with Windows Server and Debian Linux.
  • Good understanding of networking concepts, including L2/L3, VLANs, and firewalls.
  • Experience with monitoring tools such as Prometheus and Grafana.
  • Experience with infrastructure automation using Ansible.
  • Knowledge of GitLab CI/CD.
  • Scripting capabilities with Bash and/or Python.
  • Experience with logging and monitoring environments.
  • Knowledge of HAProxy, BIND, MariaDB, PostgreSQL, and LibreNMS is highly valued.
  • Experience managing backups and disaster recovery processes.
  • Strong troubleshooting and incident-resolution skills.
  • Good understanding of IT security principles and best practices.
  • Strong documentation and organizational skills.
  • Autonomous, proactive, structured, and results-oriented.
  • Ability to work effectively within an international and highly technical environment.
  • Strong willingness to continuously learn and expand technical skills.

Responsibilities

  • Install, configure, and maintain physical and virtual servers across Windows Server and Linux environments.
  • Deploy, configure, and maintain software and operating systems.
  • Monitor systems and infrastructure to ensure high availability and performance.
  • Manage and monitor backups and disaster recovery plans.
  • Diagnose, troubleshoot, and resolve technical incidents.
  • Automate infrastructure deployments and system configurations.
  • Manage Windows Server environments, including operating system and software deployment and configuration.
  • Administer and maintain Debian Linux environments.
  • Support networking environments including L2/L3, VLANs, and firewalls.
  • Implement and maintain monitoring solutions using Prometheus and Grafana.
  • Use Ansible and GitLab CI/CD to automate deployments and configuration processes.
  • Develop and maintain scripts using Bash and Python.
  • Manage logging solutions including rsyslog and Fluent Bit.
  • Work with infrastructure technologies including HAProxy, BIND, MariaDB, PostgreSQL, and LibreNMS.
  • Apply a security-first approach across infrastructure projects and daily operations.
  • Document systems, configurations, procedures, and technical processes.
  • Track and manage assigned IT projects and technical tasks.
  • Respond quickly and effectively to critical technical incidents.
  • Identify potential improvements and proactively recommend solutions.

Skills

Windows Server
Debian Linux
Networking L2/L3
Prometheus & Grafana
Ansible
GitLab CI/CD
Bash scripting
Python scripting
HAProxy
BIND
MariaDB
PostgreSQL
LibreNMS
IT security basics
Documentation
Backups & DR
Incident response

Tools

Prometheus
Grafana
rsyslog
Fluent Bit
HAProxy
BIND
MariaDB
PostgreSQL

Job description

DataOne seeks a System Administrator to install, configure, and maintain robust IT systems and infrastructure across Windows and Linux environments. You will monitor performance, implement backups, script in Bash/Python, and automate deployments with Ansible and GitLab CI/CD.

Collaborating with the CTO and IT Infrastructure team, you will help ensure security, reliability, and scalable operations for international projects while documenting configurations and procedures.

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