Technical Support Engineer (Linux / GitLab / Networking)

Job Summary
We are looking for a proactive and technically skilled Technical Support Engineer with 2-3 years of experience in Linux, Windows Server administration, GitLab, and networking. The ideal candidate should possess strong troubleshooting skills and be capable of supporting server infrastructure, network devices, and DevOps tools while ensuring high system availability.

Key Responsibilities
Provide L2 technical support for Linux and Windows servers.
Install, configure, and troubleshoot Linux (Ubuntu/RHEL/CentOS) and Windows Server environments.
Monitor server health, system performance, and resource utilization.
Troubleshoot application, OS, and infrastructure-related issues.
Manage user accounts, permissions, and system services.
Support GitLab administration, repository management, user access, branching, and merge requests.
Assist development teams with Git workflows and CI/CD pipeline troubleshooting.
Configure and troubleshoot networking issues including routing, switching, VLANs, DNS, DHCP, NAT, and load balancing.
Support firewall administration, including policy creation, NAT, ACLs, and security rule implementation.
Diagnose connectivity issues using tools such as ping, traceroute, tcpdump, netstat, and Wireshark.
Coordinate with application, database, network, and security teams for incident resolution.
Perform system patching, upgrades, and preventive maintenance.
Maintain technical documentation, SOPs, and incident reports.
Participate in on-call support and production issue handling when required.
Required Skills
Operating Systems
Linux (Ubuntu, RHEL, CentOS)
Windows Server Administration
Version Control
Git
GitLab Administration
Repository Management
Branching & Merging
GitLab CI/CD (basic knowledge)
Networking
TCP/IP
Routing & Switching
VLANs
DNS
DHCP
NAT
VPN
Load Balancing
Firewall Administration
Troubleshooting Tools
SSH
PuTTY
WinSCP
tcpdump
netstat
traceroute
ping
Wireshark
Scripting (Preferred)
Bash Shell Scripting
PowerShell (basic)
Monitoring (Preferred)
Zabbix
Grafana
Prometheus
Preferred Qualifications
Bachelor's degree in Computer Science, Information Technology, or related field.
Knowledge of virtualization technologies such as VMware, Hyper-V, or OpenStack is an advantage.
Basic understanding of cloud platforms (AWS, Azure, or GCP) is desirable.
Experience with HAProxy, Nginx, Apache, or Keepalived is a plus.
Soft Skills
Strong analytical and troubleshooting skills.
Excellent communication skills.
Ability to work independently and within a team.
Good documentation skills.
Ability to handle multiple incidents in a fast-paced environment.
Willingness to learn new technologies.

Preferred Certifications (Optional)
RHCSA
Microsoft Certified: Windows Server
CCNA
LPIC
GitLab Certified Associate (preferred)