Network, Infrastructure & Cybersecurity Specialist

Talpa Supermercados is hiring a Network, Infrastructure & Cybersecurity Specialist to maintain, secure, monitor, and continuously improve network and connectivity across corporate offices and multiple retail locations. In this onsite role in Stone Mountain, GA, you will act as the primary technical owner for LAN/WAN connectivity, SD-WAN, switching, firewalls, wireless infrastructure, internet circuits, network monitoring, infrastructure documentation, and network-focused cybersecurity.

What you’ll do

• Maintain LAN/WAN infrastructure across corporate and retail locations.
• Configure and support switches, routers, firewalls, and wireless access points.
• Monitor, maintain, and troubleshoot SD-WAN connectivity.
• Configure and maintain VLANs, DHCP, DNS, and routing configurations.
• Troubleshoot internet circuits, network outages, latency, and connectivity issues.
• Monitor network availability, performance, capacity, and reliability; identify recurring issues and recommend permanent solutions.
• Support network architecture, standardization, and modernization efforts while keeping consistent networking standards across locations.
• Improve resiliency and redundancy by identifying opportunities and addressing infrastructure risks.
• Coordinate installation, replacement, and upgrades for network equipment and maintain accurate inventories of equipment, circuits, and infrastructure assets.
• Maintain network topology diagrams, configuration documentation, and network-related SOPs, including standards and troubleshooting procedures.
• Coordinate with ISPs, telecommunications providers, and infrastructure vendors; participate in maintenance windows and technology upgrades.
• Support infrastructure requirements for store expansions, relocations, and remodels, including new internet circuit installation, activation, testing, and validation.
• Own the networking and connectivity workstream for new store openings, including configuration and readiness validation before store go-live.
• Support store opening-day and post-opening network stabilization when required.

Security and incident ownership

• Support firewall and network security controls and maintain secure network configurations according to established IT standards.
• Assist with network segmentation and security improvements, and monitor infrastructure for potential security concerns.
• Assist with vulnerability identification and remediation and support network-related cybersecurity initiatives.
• Coordinate network-security issues with technology and security vendors and escalate suspected cybersecurity incidents according to established IT procedures.
• Follow change-control and least-privilege and security standards when managing network infrastructure.
• Proactively monitor network infrastructure and take ownership of incidents from identification through resolution, including using a structured root-cause approach.
• Communicate incident status, business impact, escalation status, progress, and expected next actions, and document findings, root causes, resolutions, and preventive actions.
• Maintain internal ownership even when external providers are involved; coordinate vendor escalation as needed.
• Document on-call incidents, actions taken, escalation history, and final resolutions; participate in post-incident reviews for significant outages when appropriate.
• Maintain sufficient documentation and cross-training so backup personnel can assist when necessary.

On-call, after-hours, and travel

• Participate in the established IT on-call rotation and respond to critical connectivity and infrastructure incidents affecting retail or corporate operations.
• Be available for planned after-hours infrastructure maintenance, planned weekend maintenance, and required overnight work for migrations, deployments, and infrastructure changes.
• Travel regularly between corporate offices and retail locations for troubleshooting, installations, upgrades, assessments, and store openings.
• Provide onsite support when issues cannot be resolved remotely and coordinate onsite work with store management, Operations, vendors, contractors, and IT personnel.

Required qualifications

• Experience in IT infrastructure, networking, technical support, or a related technology role.
• Strong understanding of TCP/IP networking fundamentals.
• Working knowledge of LAN/WAN environments.
• Understanding of VLANs and switching concepts.
• Understanding of routing and firewall fundamentals.
• Experience working with managed switches and wireless access points.
• Strong troubleshooting and problem-solving skills.
• Ability to document technical environments accurately.
• Ability to prioritize incidents and work independently.
• Strong sense of technical ownership and accountability.
• Ability to communicate technical issues clearly to technical and non-technical stakeholders.
• Ability and willingness to travel regularly to retail locations.
• Ability to participate in an on-call rotation.
• Flexibility to participate in planned evening, weekend, and overnight infrastructure activities when required.

Technologies you’ll work with

LAN/WAN, SD-WAN, VLANs, DHCP, DNS, TCP/IP, switches, routers, firewalls, wireless access points, network monitoring, ISP circuit, Microsoft 365

Preferred qualifications

• Experience supporting multi-location network environments.
• Experience with SD-WAN technologies.
• Experience with firewall administration.
• Exposure to network architecture and design.
• Exposure to infrastructure and network monitoring platforms.
• Familiarity with enterprise switching and wireless technologies.
• Experience coordinating with ISPs and technology vendors.
• Experience in retail or another high-availability, multi-location environment.
• Understanding of cybersecurity fundamentals and network security principles.
• Experience participating in infrastructure deployments, migrations, or new-location implementations.

Preferred certifications

• CompTIA Network+
• Cisco CCNA or equivalent networking experience
• Relevant firewall or networking vendor certification
• CompTIA Security+ or equivalent cybersecurity training
• Professional certifications may also form part of an established technical-development path

Working conditions and physical requirements

• Corporate office environment with regular travel to retail locations.
• Hands-on technical work in active retail environments.
• Participation in new store openings and infrastructure deployment projects.
• Occasional evening, weekend, and overnight work based on operational requirements, plus participation in an established IT on-call rotation.
• Prolonged periods of sitting and computer work.
• Frequent standing and walking while providing onsite support in corporate and retail environments.
• Ability to lift, carry, install, or reposition network and infrastructure equipment as required.
• Ability to access network closets, equipment rooms, and other infrastructure areas as needed.
• Ability to travel regularly between corporate offices and retail locations.

Collaboration and ownership scope

• Primary ownership: Networking, LAN/WAN, SD-WAN, internet connectivity and ISP coordination, switches and routers, firewalls, wireless infrastructure, VLANs and network segmentation, network monitoring, network infrastructure, network documentation, network-focused cybersecurity, infrastructure deployments, new-store networking, and network vendor coordination.
• Not a primary responsibility: Routine password resets, standard end-user support, routine Microsoft 365 administration, routine user provisioning, standard workstation deployments, general application support, routine POS troubleshooting, general Help Desk ticket queues.
• Supervisory responsibilities: None direct; may coordinate vendors, contractors, service providers, or project teams as assigned.
• Works closely with: IT Operations and Systems personnel; Store Management and Operations; business departments and company leadership; internet service providers, technology vendors, contractors, and service providers.