Junior Operations Engineer

Website & Server Maintenance

• Maintain and ensure high availability of company websites and online services

• Deploy, configure, and maintain Linux-based online servers (Ubuntu / CentOS)

• Manage web services including Nginx, Apache, MySQL, Redis, and related components

• Monitor server performance, uptime, and resource usage

Troubleshooting & Incident Response

• Identify and resolve Linux OS and server-related issues promptly

• Troubleshoot website downtime, slow loading, and service failures

• Participate in on-call rotation to respond to critical incidents outside working hours; handle common attack alerts (brute-force, abnormal traffic)

Routine Operations

• Perform system patching, security updates, and version upgrades

• Execute server and database backups and recovery per established procedures; participate in recovery drills

• Perform log analysis to detect anomalies and prevent potential failures

• Assist in managing cloud server resources (Alibaba, Tencent, Huawei, etc.) and CDN configuration (Cloudflare, Alibaba/Tencent CDN, etc.)

• Assist with DNS resolution; apply for, deploy, and renew SSL certificates (Let's Encrypt, cloud-vendor certs); handle certificate-expiry alerts

• Configure firewall rules, security groups, and proxies per standards; help manage VPN (OpenVPN, WireGuard) user access

• Use monitoring tools (Zabbix, Prometheus, Grafana) to check system status and respond to / escalate alerts

• Handle tickets, server inspections, capacity-expansion support, documentation, and knowledge-base maintenance

Automation & Improvement

• Write and maintain Bash / Python scripts under guidance to automate routine tasks (scheduled backups, log/cache cleanup, alert handling); learn and use IaC tools such as Ansible

• Collaborate to improve server reliability and monitoring

• Use existing Docker, Jenkins, and GitLab CI pipelines to run build, test, and deploy tasks; understand the basics of containerization

• Document server configurations, troubleshooting steps, and operational procedures

Job Requirements

Technical Skills

• Linux OS: minimum 1 year experience with Ubuntu and/or CentOS; familiar with basic operations and common commands

• Command Line: comfortable in a CLI environment (SSH, vim/nano, grep, awk, systemctl, journalctl)

• Scripting: basic to intermediate Bash scripting for automation (Python a plus)

• Web Servers: hands-on experience with Nginx and/or Apache

• Databases: basic knowledge of MySQL (or MariaDB) — backup, restore, simple queries

• Caching: familiarity with Redis

• Networking: basic network knowledge (TCP/IP, DNS, HTTP/HTTPS, firewall)

• Cloud Platforms: familiar with at least one — AWS (EC2, VPC, CloudWatch), Google Cloud, or Alibaba Cloud

• Version Control: basic Git (clone, pull, commit)

• CI/CD: experience with Jenkins or similar tools is a plus

• Monitoring Tools: familiar with htop, netstat, iptables, fail2ban, cron

• Troubleshooting: able to debug server and application issues independently