Senior Network Engineer

Job Title: Senior Network Engineer - VolP/Service Provider (Juniper Focus) The position is on-site. Must reside in or near Richardson, Texas. We are seeking a highly skilled Senior Network Engineer with expertise in Voice over IP (VoIP) technology from a network perspective. This role involves designing, configuring, and troubleshooting Juniper-based network systems in a large-scale service provider environment, with a focus on ensuring Quality of Service (QoS) for critical applications. The engineer will collaborate with cross-functional teams on diverse projects and programs, leveraging advanced networking technologies to maintain exceptional service standards. The ideal candidate will have a robust understanding of network routing, packet flow, and hands-on experience with routers, switches, firewalls, and security platforms, primarily Juniper hardware. A strong focus on QoS implementation and optimization to ensure network performance is critical. Required Qualifications : 8-10 years of industry experience. At least 5 years of network design and operations experience. Preferred Qualifications : Bachelor’s degree in Engineering or related field. Certifications : Juniper (e.g., JNCIS-SP, JNCIP-SP, JNCIE-SP, IP Security) Cisco (e.g., CCNA, CCNP, CCIE) Skills & Experience : Strong technical expertise in configuring and troubleshooting routers, switches, firewalls, and network security products. Hands-on experience with Juniper SRX firewalls, Junos Space/Security Director, and QoS configurations for VoIP traffic. In-depth understanding of IP service provider network protocols, including QoS mechanisms (e.g., traffic shaping, queuing, and prioritization). Proficiency with troubleshooting tools like Gigamon, NetScout, and nGeniusOne. Experience with traffic generation tools (e.g., Ixia, Breaking Point). Familiarity with network automation tools and programming languages (e.g., Python or Perl) is a plus. Strong interpersonal and communication skills (oral and written). Experience working with large-scale Service Provider networks is desirable. Key Responsibilities : Provide technical support for routing, switching, and network security platforms. Design and implement QoS strategies to optimize VoIP performance and ensure seamless packet delivery. Develop and execute Methods of Procedure (MOP) for network changes, including decommissioning virtual servers and SBC configurations. Troubleshoot complex VoIP and network connectivity issues, such as: SVB VAPI connectivity problems. iLO IP address accessibility. Collaborate on Access Control List (ACL) updates, bandwidth adjustments, and QoS policies. Analyze and resolve network performance issues, including hardware/software bugs (e.g., memory leaks, BGP issues). Work on tasks requiring port assignments, bandwidth upgrades, and security configurations.