Principal Network Engineer (L3/L4)

Responsibilities

• Design and develop scalable, secure, and high-performance network architectures (LAN, WAN, WLAN, SD-WAN, VPN, Firewalls & Cloud Networking).

• Manage firewalls, routers, switches, load balancers, and wireless infrastructure.

• Perform network modelling, analysis, and planning.

• Troubleshoot and resolve high-level network and performance issues for Managed Services Customers.

• Provide network advisory services to Oreta managed services customers.

• Maintain a strong understanding of the Oreta Network portfolio to support in the planning and delivery of services including patch management, escalations and continuous improvement.

• Complete any required training and where applicable associated certifications

• Maintaining high customer satisfaction.

• Monitor the ticket queues/project cutovers and review technical correctness, driving and implementing the same as per target timelines.

• Use operational and diagnostic procedures to resolve escalated tickers in unique and complex client environments • Evaluate new technologies and make recommendations for improvements or upgrades.

• Working on the Network automation and optimization.

• Develop and maintain network documentation, diagrams, and SOPs.

• Collaborate with security, infrastructure, and application teams.

• Ensure compliance with security policies and best practices.

• Mentor junior network engineers and provide technical leadership. 

Essential Criteria •

10+ years relevant industry experience

• Minimum of 5+ years of hands-on experience in designing, implementing, and maintaining enterprise-level network infrastructure.

• Certifications such as CCNP, PCNSA, NSE 5 / NSE 6 or equivalent are highly desirable.

• Proven experience with Cisco, Fortinet, Palo Alto or other major network hardware vendors.

• Ability to resolve complex network issues across LAN, WAN, and cloud environments.

• Strong knowledge of routing and switching protocols (BGP, OSPF, EIGRP, STP, VLANs).

• Proficiency in firewall technologies and VPNs (e.g., Palo Alto, Fortinet).

• Experience with SD-WAN, ZTNA, and network segmentation.

• Experience with network monitoring and diagnostic tools (e.g., SolarWinds, Wireshark, LogicMonitor).

• Solid understanding of IP addressing, subnetting, and DNS/DHCP.

• Strong analytical and troubleshooting skills, especially in high-pressure or outage scenarios.

• Strong documentation skills for network diagrams, configurations, and procedures.

• Willingness to participate in an on-call rotation and occasional after-hours maintenance windows.