IT Operations Engineer – L2 Support (Networking & Systems)

ATI Business Group; Indonesia; On-site; IDR 85,000,000 - 180,000,000; Full time

Job summary

ATI Business Group is seeking an IT Operations professional to independently troubleshoot L2 incidents across network, server, and infrastructure layers. The role involves configuring and maintaining LAN/WAN components, VPNs, and firewalls, plus administering Windows Server or Linux environments to ensure high availability.

The candidate will perform root-cause analysis, monitor health metrics, and handle ITSM-based incident management in collaboration with internal teams and vendors.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Information Systems, Computer Engineering, or a related field.
• Minimum 2 years of experience in IT operations, infrastructure support, network administration, or system administration.
• Proven hands-on experience independently resolving L2 technical incidents beyond basic end-user support.
• Strong knowledge of networking fundamentals, including TCP/IP, DNS, DHCP, routing, switching, VLANs, VPNs, and firewalls.
• Practical experience troubleshooting network devices, servers, and enterprise IT infrastructure.
• Experience administering and troubleshooting Windows Server and/or Linux environments.
• Strong analytical and problem-solving skills, including root-cause analysis and systematic technical troubleshooting.
• Familiarity with ITSM platforms, ITIL practices, and incident management processes.
• Professional proficiency in Bahasa Indonesia and English, with effective communication and documentation skills.
• Willingness to work on-site at our BSD, South Tangerang office.
• Certifications such as Cisco CCNA/CCNP, MikroTik, or equivalent networking and infrastructure qualifications.
• Experience with virtualization platforms, infrastructure monitoring tools, cloud environments, and backup or disaster recovery solutions.

Responsibilities

• Independently troubleshoot and resolve L2 incidents involving network connectivity, servers, system performance, and IT infrastructure.
• Configure, maintain, and troubleshoot network components, including LAN/WAN, routers, switches, VPNs, and firewalls.
• Administer and troubleshoot Windows Server and/or Linux environments to ensure system availability and performance.
• Perform root-cause analysis, implement corrective actions, and prevent recurring technical issues.
• Monitor infrastructure health, investigate system alerts, and proactively address potential operational risks.
• Manage incidents and service requests through ITSM platforms, following ITIL practices and established service-level agreements.
• Collaborate with internal teams and external vendors to resolve specialist-level issues while maintaining incident ownership and follow-up.
• Maintain technical documentation and support infrastructure maintenance, improvements, and business continuity initiatives.

Skills

Networking fundamentals

TCP/IP

DNS/DHCP

LAN/WAN

Routers/Switches

VPNs/Firewalls

Windows Server

Linux

Root-cause analysis

ITIL/ITSM

English communication

Bahasa Indonesia communication

Education

Bachelor's degree in IT/CS/IS/CE or related field

Tools

Windows Server

Linux

ITSM platforms

IT virtualization

Cloud environments

Backup/Disaster recovery tools

Monitoring tools

Job description

ATI Business Group is seeking an IT Operations professional to independently troubleshoot L2 incidents across network, server, and infrastructure layers. The role involves configuring and maintaining LAN/WAN components, VPNs, and firewalls, plus administering Windows Server or Linux environments to ensure high availability.

The candidate will perform root-cause analysis, monitor health metrics, and handle ITSM-based incident management in collaboration with internal teams and vendors.