Network Security Engineer

Job description / Role

About the role
- Support and Operate Security Services and offers provided to a vast number of Customers worldwide to secure high quality levels and almost 100% service availability.
- Act as Second level of support and deliver different security services management aspects: incident, change, release, capacity, and vulnerability management.
- Resolve service incidents by troubleshooting & solving reported faults.
- Perform service changes by assessing risk and implementing reported change requests.
- Resolve service problems by performing root cause analysis and designing action plans for unknown errors reported through: Problem Management Dashboard, Monitoring Alarms, Proactive Trouble Tickets, Incidents, or authorized signed emails.
- Monitor & validate alarms coming from intrusion sensors and identify real and false alarms.
- Qualify and solve incidents by analysing application-level traffic, tracking and investigating intrusions through manual event correlation.
- Escalate technically major security events & incidents to security senior engineers to empower it with better technical skills and more investigation.
- Perform routine actions to help manage and optimize IPS security policies.
- Perform solution releases by authorizing & validating changes, upgrades, updates, patches and migrations as well as implementing it.
- Maintain Security Solutions Configuration Management up-to-date by adding/modifying CI as implied by incident, change, & release processes.
- Manage customers (internal and external) calls and provide them with regular as per each of the service support processes.
- Perform SIPs actions led by Senior Security Engineers and update the action plan of the SIP.
- Perform Technical & management escalation as implied by the escalation process to ensure security tasks are progressing toward resolution and/or completion.
- Mentor newcomers and security associate as well as SOC 1 and provide them with guidance and technical advice

Requirements

About you
- Very good understanding of networking (TCP/IP, routing OSPF, switching)
- Very good understanding of application & network security concepts & technologies
- Networking Experience - VPN technologies such as IPSec and VPN clients
- Network Security (SSL/TLS, VPNs, Firewall, IDS/IPS)
- Authentication systems such as LDAP, MS AD etc
- Knowledge of protocols such as HTTP, SMTP, FTP, DNS
- Experience with operating systems such as Linux, Unix and Free BSD
- Network troubleshooting experience - Familiarity with tools such as Ping, Traceroute, MTR, and Network Protocol Analyzers such as tcpdump, Wireshark
- Hands-on experience in evaluating specification, lab validating & testing.
- Hands-on experience in analyzing architecture and building proposals.
- Ability to write technical documentation for operations, sales & Marketing.
- Working knowledge routing, load balancing and resiliency.
- Working knowledge of Orange security solutions is a plus.
- Working knowledge in large scale enterprise end-point security.
- CCNA security or Security+ certified
- English fluency is mandatory & French fluency is an asset.


Educational background:
- B.Sc. degree in Computer Science, communications or electronics engineering
- ITIL V3
- CISSP is a plus

Professional Experience:
- At least 3 years of professional experience
- At least 2 years of Network/ Network security technical experience
- In depth experience on one of the following products:
- Proxies: Bluecoat mainly, and also Prisma Cloud and Zscaler.
- Firewalls: CheckPoint, Palo Alto & Fortinet mainly, but Cisco is also acceptable.
- Load Balancers: F5 BIGIP mainly
- Intrusion Detection & Prevention: MacAfee IPS mainly
- Remote Access Solutions: IPsec, VPN, AAA, CISCO security, PKI, RAS, RADUIS, TACACS
- Operating Systems: Unix/Solaris & Linux

department
Global Delivery & Operations

Orange Business manages and integrates the complexity of international communications, freeing our customers to focus on the strategic initiatives that drive their business. Our extensive experience and knowledge in global communication solutions, together with our understanding of multinational business and local support in 166 countries and territories, ensure that our customers receive a consistent, global solution wherever they do business.

About the Company

Orange is one of the world’s leading telecommunications operators with sales of 43.5 billion euros in 2022 and 136,000 employees worldwide at 31 December 2022, including 75,000 employees in France. The Group has a total customer base of 287 million customers worldwide at 31 December 2022, including 242 million mobile customers and 24 million fixed broadband customers. The Group is present in 26 countries. Orange is also a leading provider of global IT and telecommunication services to multinational companies under the brand Orange Business.