Network Architect

Ethereum Technologies LLC; Florida; On-site; USD 120,000 - 160,000; Full time

Job summary

Ethereum Technologies is seeking an experienced network architect to design and deploy enterprise LAN/WAN, routing, switching, and security architectures across Florida sites. The role requires coordinating with cybersecurity and OT teams to ensure secure segmentation between IT and OT environments.

You will develop detailed topology diagrams, IP addressing strategies, and a robust migration plan for site connectivity and data center links, while ensuring high availability and resiliency.

Qualifications

• Essential skills include enterprise network architecture, LAN/WAN design, routing and switching, TCP/IP, DNS/DHCP, VLANs and segmentation, BGP/OSPF, firewall design, WAN/SD-WAN, network security, high availability, wireless networking, IP addressing, data center connectivity, and site migration planning.

Responsibilities

• Conduct detailed assessment of current network infrastructure.
• Review routers, switches, firewalls, WAN connectivity, wireless infrastructure, circuits, racks, patch panels, and cabling.
• Document current-state topology and identify gaps, risks, dependencies, and obsolete infra.
• Design target-state architecture to integrate the plant into the enterprise environment.
• Develop HLD/LLD, topology diagrams, connectivity requirements, IP strategy, segmentation, redundancy, and resiliency.
• Define redundant connectivity and high-availability requirements for critical services.
• Coordinate OT/IT integration with cybersecurity teams for secure segmentation.
• Plan and execute migration and cutover activities with minimal downtime.
• Coordinate with field-services during implementation.
• Document network equipment and configuration requirements.

Skills

Network architecture

LAN/WAN design

Routing & Switching

TCP/IP

DNS/DHCP

VLANs & segmentation

BGP/OSPF

Firewall design

WAN/SD-WAN

Network security

High availability

Wireless networking

IP addressing

Data center connectivity

Site migration planning

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

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.