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I

Technology Lead

Infosys
🇷🇴 Romania
On-site
Staff / Principal
3 weeks ago
  • Network Security
  • NAT
  • OpenStack
  • Kubernetes
  • BGP
  • IPSec
  • Node.js
  • Change Management
  • ITIL
  • TCP/IP
  • Zero Trust
  • SSL
  • Python
  • Ansible
  • REST API
  • PCNSE
  • CCNP
  • CCIE
  • AI
  • Agile
3 weeks ago
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Job Description

Practice / Domain
Cyber Security – Telco Cloud & Network Security
Experience Range
5 – 12 Years
Support Model
24x7 Operations (Telco-grade SLA-driven environment) 
Role Summary
The Network Security Engineer is responsible fordesign, deployment, and operations of Telco-grade Virtual Firewalls (vFW) using Palo Alto technologies withinTelco cloud (NFV/SDN) environments.
This role ensuressecure traffic segmentation, high availability, and scalable firewall deployments supportingcarrier-grade networks, VNF architectures, and multi-tenant Telco environments.
 
Key Responsibilities
1. Telco Virtual Firewall (Palo Alto) Operations
  • Deploy, configure, and managePalo Alto Virtual Firewalls (VM-Series / CN-Series) in Telco cloud
  • Configure:
    • Security policies (App-ID, URL filtering, NAT, segmentation)
    • Threat prevention (IPS, Anti-malware, WildFire)
  • Performlog analysis, traffic inspection, and threat detection
  • Ensure policy enforcement acrossTelco network segments and trust zones
 
 
2. Telco Cloud / NFV Security Implementation
  • Deploy firewalls asVirtual Network Functions (VNFs) in Telco cloud environments
  • Integrate with:
    • NFV orchestrators / SDN controllers
    • Telco cloud platforms (OpenStack / Kubernetes)
  • Ensure:
    • Secure communication between VNFs
    • Controlled access using IP/Port/Application-level filtering
 
 
3. Traffic Engineering & Connectivity Security
  • Configure and manage:
    • Routing protocols (BGP, static routing)
    • VPNs (IPSec, site-to-site connectivity)
  • Performdeep packet inspection (DPI) and traffic flow analysis
  • Securenorth-south and east-west traffic flows in Telco networks
 
 
4. High Availability & Carrier-Grade Design
  • ImplementHA (active-active / active-passive) setups for virtual firewalls
  • Support:
    • Geo-redundant deployments
    • Fault-tolerant designs aligned to Telco standards
  • Ensureno service impact from VNF/node/site failures
 
 
5. Monitoring, Incident & Change Management
  • Monitor firewall health, logs, and alerts
  • PerformL2/L3 troubleshooting for high-severity incidents
  • Executechange, incident, and problem management (ITIL aligned)
  • Collaborate withNOC, SOC, and Telco operations teams
 
 
6. Governance, Compliance & Security Assurance
  • Ensure firewall configurations meet:
    • Telco security standards (ETSI / NFV guidelines)
    • Enterprise compliance requirements
  • Support audits with logs, reports, and evidence
  • Performpolicy optimization, cleanup, and compliance validation
 
 
Mandatory Skills
Core Technical Skills
  • Hands-on experience with:
    • Palo Alto Virtual Firewalls (VM-Series / CN-Series)
    • Panorama for centralized firewall management
  • Strong knowledge of:
    • NGFW features (App-ID, User-ID, Content-ID, IPS)
    • Firewall policy design and segmentation
 
 
Telco / Cloud Exposure
  • Experience in:
    • Telco cloud / NFV environments
    • Virtual firewall deployments at scale
  • Understanding of:
    • VNF lifecycle and orchestration
    • SDN-based network security
 
 
Networking Fundamentals
  • Strong understanding of:
    • TCP/IP, BGP, routing, NAT
    • Network segmentation and Zero Trust
  • Experience with:
    • VPNs (IPSec, SSL VPN)
    • Traffic analysis and debugging
 
 
Desired / Good-to-Have Skills
  • Experience with:
    • Multi-vendor Telco firewalls
    • Kubernetes / container security (CN-Series)
  • Automation:
    • Python / Ansible / REST APIs
  • Exposure to:
    • 5G / LTE network security
    • Cloud-native security controls
 
 
Certifications (Preferred)
  • Palo Alto:
    • PCNSE / PCNSA
  • Network / Telco:
    • CCNP / CCIE (Security or Service Provider)
  • Cloud / Telco:
    • NFV / Telco cloud certifications (optional)
 
 
Soft Skills
  • Strong troubleshooting and analytical skills
  • Ability to operate inhigh pressure, carrier-grade environments
  • Effective collaboration across global teams (NOC, SOC, Engineering)
  • Strong communication for client and stakeholder engagement
 
 
Key Outcomes / Success Metrics
  • High availability of Telco firewall services (carrier-grade SLAs)
  • Secure segmentation and traffic isolation across VNFs
  • Reduction in security incidents and faster RCA
  • Improved policy compliance and audit readiness

About Infosys 
Infosys is a global leader in next-generation digital services and consulting. We enable clients in 59 countries to navigate their digital transformation.
With over four decades of experience in managing the systems and workings of global enterprises, we expertly steer clients, in 59 countries, as they navigate their digital transformation powered by cloud and AI. We enable them with an AI-first core, empower the business with agile digital at scale and drive continuous improvement with always-on learning through the transfer of digital skills, expertise, and ideas from our innovation ecosystem. We are deeply committed to being a well-governed, environmentally sustainable organization where diverse talent thrives in an inclusive workplace.

 
  • Role Designation description: Technology Lead

Technology Lead · Infosys

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