Network Security Engineer

Infosys

Job Location:

Bucharest - Romania

Monthly Salary: Not Disclosed

Posted on: 3 days ago

Vacancies: 1 Vacancy

Job Summary

Role Summary

The Network Security Engineer is responsible for design deployment and operations of Telco-grade Virtual Firewalls (vFW) using Palo Alto technologies within Telco cloud (NFV/SDN) environments.

This role ensures secure traffic segmentation high availability and scalable firewall deployments supporting carrier-grade networks VNF architectures and multi-tenant Telco environments.

Key Responsibilities

1. Telco Virtual Firewall (Palo Alto) Operations

Deploy configure and manage Palo 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)
Perform log analysis traffic inspection and threat detection
Ensure policy enforcement across Telco network segments and trust zones

2. Telco Cloud / NFV Security Implementation

Deploy firewalls as Virtual 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)
Perform deep packet inspection (DPI) and traffic flow analysis
Secure north-south and east-west traffic flows in Telco networks

4. High Availability & Carrier-Grade Design

Implement HA (active-active / active-passive) setups for virtual firewalls
Support:
- Geo-redundant deployments
- Fault-tolerant designs aligned to Telco standards
Ensure no service impact from VNF/node/site failures

5. Monitoring Incident & Change Management

Monitor firewall health logs and alerts
Perform L2/L3 troubleshooting for high-severity incidents
Execute change incident and problem management (ITIL aligned)
Collaborate with NOC 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
Perform policy 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 in high 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 46 countries to navigate their digital transformation. With over three decades of experience in managing the systems and workings of global enterprises we expertly steer our clients through the many next of their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills expertise and ideas from our innovation ecosystem.
Visit to see how Infosys can help your enterprise navigate your next.

All aspects of employment at Infosys are based on merit competence and performance. We are committed to embracing diversity and creating an inclusive environment for all employees. Infosys is proud to be an equal opportunity employer

Required Experience:

Role SummaryThe Network Security Engineer is responsible for design deployment and operations of Telco-grade Virtual Firewalls (vFW) using Palo Alto technologies within Telco cloud (NFV/SDN) environments.This role ensures secure traffic segmentation high availability and scalable firewall deployment...