OT Communications Architect/Lead Engineer

Job#: 3055369
Job Description:
OT Communications Architect/Lead Engineer
Location: San Antonio, Texas (Onsite)
Role Overview
This position supports the OT Infrastructure and Operations teams with responsibility for the design, reliability, and evolution of OT network services. This role requires expertise in large-scale network architecture, focusing on availability, security, and operational stability. The individual will serve as the senior technical lead and subject matter expert for the OT Communications domain, setting design standards and leading solution development. The role requires both strategic design and hands-on execution in an environment where uptime and safety are critical.
Key Responsibilities

• Develop High-Level Designs (HLD) and Low-Level Designs (LLD) for enterprise and OT network environments.
• Design large-scale network topologies across WAN, datacenter, cloud, and hybrid environments.
• Lead design of advanced routing, failover, and resiliency strategies aligned to uptime and safety requirements.
• Deploy and configure routers, switches, firewalls, load balancers, and related network services.
• Lead hands-on execution of enterprise and OT network builds, upgrades, and remediation efforts.
• Monitor network performance, latency, and throughput across critical OT and enterprise environments.
• Implement network segmentation, VPNs, and secure access architectures aligned to OT cybersecurity requirements.
• Develop and maintain runbooks, SOPs, and support documentation for network services.

Required Qualifications
Experience: 7+ years of enterprise network engineering experience, including design, implementation, and support of large-scale environments. Strong experience designing enterprise WAN and datacenter networks, including highly available and resilient architectures.
Technical Skills: Deep expertise in core networking fundamentals, including TCP/IP, OSI model, and routing protocols (BGP, OSPF). Experience with network automation, including scripting (Python, PowerShell, or similar) and exposure to automation frameworks. Experience with SD-WAN or modern WAN architectures.
Abilities: Proven ability to design, build, and support large-scale, production-critical network environments. Advanced troubleshooting and root cause analysis skills, including the ability to diagnose complex, multi-domain issues. Ability to translate high-level designs into implementable solutions and guide others in execution.
Preferred Qualifications

• CCNP (minimum), CCIE strongly preferred.
• Experience with SD-WAN platforms and modern WAN architectures.
• Familiarity with Infrastructure-as-Code (IaC) tools and practices (e.g., Ansible, Terraform).
• Exposure to cellular and wireless networking technologies, including LTE/5G and eSIM-based connectivity.
• Understanding of cloud networking concepts (Azure or similar), including hybrid connectivity patterns.
• Exposure to OT or industrial networking environments (SCADA, control systems, etc.).

Compensation & Benefits
A comprehensive benefits package is available to eligible employees.
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
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