Senior Network Administrator

Kruger Inc.; Colombia; On-site; COP 189,300,723 - 265,021,012; Full time

Job summary

A global technology firm is seeking an experienced Network Administrator in Colombia. This role focuses on managing and securing the network infrastructure, including configuring firewalls and optimizing performance. The ideal candidate should have at least 10 years of experience in network and security administration, strong expertise in Palo Alto solutions, and a commitment to best practices. This opportunity involves collaboration with various teams to ensure a secure and resilient network environment.

Qualifications

• 10+ years of experience in network and security administration.
• Strong expertise in Palo Alto firewalls and Aruba solutions.
• Fluent in English (min B2 level) required.

Responsibilities

• Manage and optimize LAN, WAN, and WLAN infrastructures.
• Administer, configure, and maintain Palo Alto firewalls.
• Participate in network security projects and maintain documentation.

Skills

Palo Alto firewalls

Aruba network solutions

Networking protocols

Network segmentation

MS Visio M365

Network monitoring tools

Education

Bachelor’s in computer science or equivalent

CCNA

PCNSE

Aruba Certified

Tools

Palo Alto firewalls

HPE Aruba

Citrix NetScaler

Job description

Join us to protect the digital future of our organization and the resilience of our operations!

We are seeking an experienced Network Administrator (10+ years) to join our IT team. This role will be key in managing, optimizing, and securing our network infrastructure, including configuring and administering firewalls, monitoring network performance, and implementing secure, business-driven solutions.

The Network Administrator will serve as a technical reference and will be responsible of all Kruger business units on-premises and cloud network infrastructure for day-to-day operations including incidents and services requests. His expertise and participation can be requested for projects delivery and will actively contribute to implementing best practices for availability, security, and performance.

MAIN RESPONSIBILITIES

Network Administration & Optimization

• Manage and optimize LAN, WAN, and WLAN infrastructures based on Aruba enterprise solutions.
• Configure and maintain network switching, routing, and segmentation (VLAN, BGP, OSPF, etc.).
• Ensure high availability, redundancy, and performance of network services.
• Oversee network capacity planning, scalability, and performance tuning.

Firewall & Security Management

• Administer, configure, and maintain Palo Alto next-generation firewalls (NGFW).
• Deploy, monitor, and optimize network security policies.
• Manage VPNs and secure remote access solutions.
• Conduct regular reviews of firewall rules and security configurations.
• Troubleshoot and resolve complex (Level 3) network and firewall issues.
• Provide escalation support for critical incidents impacting business operations.
• Perform firmware updates, patching, and preventive maintenance on network and security equipment.
• Participate in the on‑call rotational schedule and afterhours support.

Projects & Documentation

• Participate in the design, implementation, and deployment of network and security projects.
• Maintain up‑to‑date technical documentation, topology diagrams, and configuration records.
• Collaborate closely with Infrastructure, Cybersecurity, and Local Operations teams to ensure alignment and security compliance.

2025-08-06

QUALIFICATIONS

ACADEMIC

• Bachelor’s in computer science or equivalent.
• CCNA (Cisco Certified Network Associate), PCNSE (Palo Alto Networks Certified Security Engineer) or Aruba Certified are an asset.

EXPERIENCE

• 10+ years of experience in network and security administration.

SKILLS AND ABILITIES

Technical skills

• Strong expertise in Palo Alto firewalls, including Panorama management console (configuration, policy management, advanced troubleshooting).
• Solid experience with HPE Aruba network solutions (switches, wireless controllers, APs).
• In‑depth knowledge of networking protocols and technology (TCP/IP, STP, BGP, OSPF, VLAN, LAN, WAN, VPN, SD‑WAN, DHCP, DNS, HA, Load Balancer).
• Proven skills in network segmentation and secure architecture.
• Strong knowledge of MS Visio M365.

Asset

• Experience in industrial or manufacturing environments with operational technology (OT) network considerations.
• Knowledge of network monitoring tools (Ops‑Ramp, Aruba Central, SolarWinds, PRTG, etc.).
• Experience with Citrix NetScaler.
• Awareness of cybersecurity best practices and compliance requirements.

Non-Technical

• Requires strong customer focus, organizational skills, ethic, and adaptability to change.
• Result oriented with a commitment on team success.
• Ability to manage multiple projects and handle critical incidents under pressure.
• Good communication skills with technical stakeholders and comfortable with non-technical stakeholders.
• Strong analytical and problem-solving abilities.
• Team player and ability to collaborate with multidisciplinary teams.

LANGUAGES

• Fluent in English (written and spoken), min B2 English level required.