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.

• 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.

• 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.

• 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.

• 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…