Senior Network Architect (Operations Technology)

Job Description

Roles & Responsibilities :

Role Focus

Defines enterprise-wide OT network strategy and reference architectures for BESS platforms. Acts as the final technical authority for OT networking, cybersecurity integration, and standardization across regions and projects.

Key Responsibilities

. Own global OT network architecture for BESS platforms

. Define reference architectures, standards, and design frameworks

. Architect secure OT/IT integration models aligned to IEC 62443

. Lead Zero Trust adoption for OT environments (ZPA/ZIA, Cisco ZTA)

. Drive architecture for multi-site, multi-region deployments

. Define resiliency, redundancy, and failover strategies

. Review and approve all OT network designs and deviations

. Lead architecture reviews with Product, Cybersecurity, and Compliance

. Influence vendor selection, technology standards, and long-term roadmaps

. Mentor Senior Architects and Engineers

. Represent OT network architecture in customer, regulator, and executive discussions

Qualifications

Qualification: BTech/MTech in CS

Experience: 10-12yrs

Technical Depth

. Expert-level knowledge of:

. Industrial OT network architecture

. Firewall and Zero Trust design for OT

. BGP, OSPF, VRF, advanced segmentation

. Strong experience with:

. Cisco ASA / FTD / FMC / ISE at scale

. Secure OT-to-cloud connectivity (AWS)

. Deep understanding of:

. IEC 62443, NIST, and critical infrastructure security models

Decision Authority

. Final authority on:

. OT network standards

. Security architecture

. Design exceptions and risk acceptance

Certifications (Strongly Preferred)

. CCIE (Enterprise or Security)

. IEC 62443 Lead Implementer / OT Security certifications