Job Description
mandatory
SN Required Information Details
1 Role OT Network Engineer
2 Required Technical Skill Set  Firewall, ACL, VPN, DMZ
configuration
 Network segmentation: VLAN, VPN,
MPLS
 Secure WAN, remote access governance
 Experience with Cisco/Fortinet/OEM
firewalls
3 No of Requirements 1
4 Desired Experience Range 5-8 Years
5 Location of Requirement XXXX
Desired Competencies (Technical/Behavioral Competency)
Must-
Have  Strong hands‑on experience in firewall policy design and review
 Ability to create and validate ACL rules aligned with security architecture
baselines.
 Working knowledge of network segmentation models including VLAN, VPN,
DMZ.
 Experience designing secure WAN/MPLS/VPN connectivity for OT/IT‑OT
networks.
 Deep understanding of OT network topologies and SCADA/EMS/DMS
communication flows.
 Ability to evaluate network configuration changes against approved baseline
designs.
 Competence in implementing and validating DMZ and interzone communication
controls.
 Strong troubleshooting across L2/L3 switches, routers,



and firewall appliances.
 Knowledge of encryption and secure communication protocols (IPsec, TLS, IEC
62351).
 Proficient in IT–OT network segmentation, the Purdue Enterprise Reference
Architecture, and key architectural concepts such as zones and conduits and DMZ
implementation.
 Hands-on experience with OT network layers, including access, distribution, and
core layers.
 Proven ability to collaborate with crossfunctional teams to integrate OT networks
with existing IT infrastructures.
 Experience supporting SIEM onboarding by enabling log forwarding on network
JD Ver 1.0
devices.
 Familiarity with secure remote access, vendor access governance, and
jump‑server concepts.
 Ability to review and harden network configurations to meet IEC 62443
guidelines.
 Experience coordinating network security activities with OEMs & customer
 Robust documentation and reporting skills for firewall baselines and change
records.


📌 OT network engineer- SKF (India)
🏢 TCS_India
📍 India