Network Architect

Valiant Technologies LLC; Florida; On-site; USD 110,000 - 170,000; Full time

Job summary

Valiant Technologies LLC is seeking a Network Architect to lead enterprise LAN/WAN design and security across IT and OT environments. Responsibilities include assessing current infrastructure, designing target-state architecture, and ensuring resilient, scalable connectivity with SD-WAN integration.

The role requires coordination across multiple teams, creating HLD/LLD, and documenting topology and migration plans to minimize downtime while meeting security standards.

Qualifications

• Enterprise network design and architecture for LAN/WAN and data center connectivity.
• IP addressing, subnetting, VLANs, segmentation, and HA planning.
• Coordinate multiple technical workstreams and document topology.
• Secure network segmentation between IT and OT environments.

Responsibilities

• Assess existing network infrastructure.
• Review routers, switches, firewalls, WAN, wireless infrastructure, circuits, racks, patch panels, and cabling.
• Document current-state topology and identify gaps, risks, dependencies, and obsolete infrastruc ture.

Skills

LAN/WAN Design

Routing & Switching

BGP/OSPF

Network Security

High Availability

SD-WAN

Job description

Enterprise Network Architecture and Design LAN/WAN architecture Routing and Switching TCP/IP| DNS| DHCP| NATVLANs and network segmentation BGP| OSPF and enterprise routing concepts Enterprise firewall architecture WAN / SD-WAN Network security High Availability and network resiliency Wireless network architecture IP addressing and subnetting Network discovery and assessment Data center/site connectivity Structured cabling and physical infrastructure Site migration and cutover planning Network troubleshooting and root-cause analysis HLD/LLD and network topology documentation Experience coordinating multiple technical workstreams.

• Site Network Assessment Conduct detailed assessment of the existing power plant network infrastructure.
• Review routers| switches| firewalls| WAN connectivity| wireless infrastructure| network circuits| racks| patch panels| and physical cabling.
• Document the current-state network topology and identify technical gaps| risks| dependencies| and obsolete infrastructure.
• Target Network Architecture Design the target-state network architecture required to integrate the power plant into the enterprise environment.
• Develop HLD/LLD| network topology diagrams| connectivity requirements| IP addressing strategy| segmentation| redundancy| and resiliency requirements.
• LAN/WAN Architecture Design and validate enterprise LAN/WAN connectivity| including routing| switching| VLANs| WAN circuits| SD-WAN| and site connectivity.
• Define redundant connectivity and high-availability requirements for critical plant services.
• Network Security & Segmentation Work with cybersecurity and OT security teams to develop secure network segmentation between enterprise IT and plant/OT environments.
• Support firewall architecture| security zones| access requirements| and network-security controls.
• Ensure the migration adheres to applicable client security and infrastructure standards.
• OT/IT Integration Coordinate integration requirements between corporate IT infrastructure and power plant operational technology.
• Identify connectivity dependencies involving plant systems and other operational applications without introducing unnecessary dependencies between OT and enterprise networks.
• Site Migration Planning Develop the detailed network migration and cutover approach.
• Identify prerequisites| sequencing| dependencies| maintenance-window requirements| validation criteria| rollback requirements| and post-migration activities.
• Design the migration to minimize interruption to site operations
• .Physical Infrastructure & Cabling Assess structured cabling and physical network infrastructure.
• Identify requirements for fiber/copper cabling| patch panels| racks| network closets| equipment installation| labeling| and connectivity.
• Coordinate with field-services and cabling teams during implementation.
• Network Equipment & Configuration Design Define requirements

Essential Skills:

Enterprise Network Architecture and Design LAN/WAN architecture Routing and Switching TCP/IP| DNS| DHCP| NATVLANs and network segmentation BGP| OSPF and enterprise routing concepts Enterprise firewall architecture WAN / SD-WAN Network security High Availability and network resiliency Wireless network architecture IP addressing and subnetting Network discovery and assessment Data center/site connectivity Structured cabling and physical infrastructure Site migration and cutover planning Network troubleshooting and root-cause analysisHLD/LLD and network topology documentation Experience coordinating multiple technical workstreams.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.