Network Engineer

PT Astra Graphia Information Technology; Jakarta Pusat; Hybrid; IDR 18,000,000 - 30,000,000; Full time

Job summary

PT Astra Graphia Information Technology is seeking a Network Engineer to design, implement, manage, and secure enterprise networks across corporate environments in Jakarta. The role emphasizes reliable connectivity, performance optimization, and security posture across facilities.

You will configure and maintain Cisco devices, Fortinet Firewall, VPNs, VLANs, and VPN technologies, while collaborating with security, systems, and application teams to ensure seamless operations and compliant

Qualifications

• Bachelor’s degree in Computer Engineering, IT, CS, or related field.
• Proven experience as Network Engineer, Network Administrator, or Infra Engineer.
• Hands-on with Cisco devices, Fortinet Firewall, VLAN, VPN, TCP/IP.
• CCNA/CCNP/FCP/Network+ certifications preferred.
• Strong documentation and analytical skills.

Responsibilities

• Design, configure, maintain, and troubleshoot enterprise network infrastructure.
• Manage and maintain Cisco routers, switches, wireless infrastructure, and security appliances.
• Configure and administer Fortinet Firewall and other network security solutions.
• Monitor network availability, performance, and capacity; ensure optimal service delivery.
• Troubleshoot and perform root cause analysis for network incidents.
• Configure routing, switching, VLAN, TCP/IP, wireless networking, and enterprise connectivity.
• Support network security implementation and compliance requirements.
• Develop and maintain network documentation including topology diagrams, configurations, and procedures.

Skills

Cisco devices

Fortinet Firewall

TCP/IP

VLAN

VPN technologies

Wireless networking

Network monitoring

Troubleshooting

Education

Bachelor’s degree in Computer Engineering, Information Technology, Computer Science, or related fields

Tools

Cisco routers

Fortinet

Cisco ISE

Proxy solutions

VPN solutions

Wireless networking

Network monitoring tools

Job description

Network Engineer

Job Summary

We are seeking a Network Engineer responsible for designing, implementing, managing, and securing enterprise network infrastructure. This role focuses on ensuring reliable network connectivity, optimizing performance, and maintaining network security across corporate environments.

Main Responsibilities

• Design, configure, maintain, and troubleshoot enterprise network infrastructure.
• Manage and maintain network devices including Cisco routers, switches, wireless infrastructure, and security appliances.
• Perform configuration and administration of Fortinet Firewall and other network security solutions.
• Manage network security technologies including:
  • Firewall policies
  • IPS/IDS
  • VPN solutions
  • Network Access Control (NAC)
  • Cisco Identity Services Engine (ISE)
  • Proxy services
• Monitor network availability, performance, and capacity to ensure optimal service delivery.
• Perform troubleshooting and root cause analysis for network incidents.
• Configure and manage network technologies including:
  • Routing & Switching
  • VLAN
  • TCP/IP
  • Wireless networking
  • Enterprise connectivity
• Support network security implementation and compliance requirements.
• Develop and maintain network documentation including topology diagrams, configurations, and operational procedures.
• Collaborate with System Administrator, Security, and Application teams to ensure seamless infrastructure operations.

Qualifications

• Bachelor’s degree in Computer Engineering, Information Technology, Computer Science, or related fields.
• Proven experience as a Network Engineer, Network Administrator, or Infrastructure Engineer.
• Strong knowledge and hands‑on experience with:
  • Cisco networking devices
  • Fortinet Firewall
  • Routing & Switching
  • TCP/IP networking
  • VLAN and network segmentation
  • VPN technologies
  • Wireless networking
• Experience with network security technologies:
  • Firewall management
  • IPS/IDS
  • NAC
  • Cisco ISE
  • Proxy solutions
• Familiar with network monitoring and troubleshooting tools.
• Strong analytical skills with the ability to diagnose complex network issues.
• Ability to create technical documentation and network diagrams.
• Relevant certifications are preferred:
  • Cisco Certified Network Associate (CCNA)
  • Cisco Certified Network Professional (CCNP)
  • Fortinet Certified Professional (FCP)
  • CompTIA Network+

Why Join Us

• Opportunity to manage and improve enterprise network infrastructure at scale.
• Work with leading networking and cybersecurity technologies.
• Gain exposure to complex network environments and challenging technical projects.
• Collaborate with skilled IT professionals across infrastructure and security domains.
• Continuous opportunities for professional growth and certification development.