L1 Technical Support Engineer Security Job in Juniper Networks

At Juniper

We believe the network is the greatest vehicle for knowledge, understanding, and human advancement. Delivering an experience-first, AI-Native Network pivots on the creativity and commitment of our people a consistent and dedicated practice we call the Juniper Way.

Summary

This position is part of the L1 Technical Assistance Center (TAC), supporting Juniper s SRX Firewall customers worldwide.

About the Role

This role offers a unique opportunity to address a wide range of challenging technical issues for global customers, stay ahead in the rapidly evolving security industry, and continuously develop new skills. You will be part of a collaborative, supportive team, working on diverse tasks that ensure each day is engaging and dynamic.

Key Responsibilities

• Work in a highly dynamic Technical Assistance Center (TAC) environment with a strong focus on customer satisfaction.
• Quickly diagnose and resolve customer issues to deliver a remarkable customer experience.
• Serve as a customer advocate, ensuring timely problem resolution while understanding the network environment and business impact.
• Take full ownership of problem resolution, reproduction, and escalation when necessary.
• Collaborate within a team-oriented environment, demonstrating flexibility to work on weekends/holidays as required.
• Continuously learn and adapt to emerging technologies.

Mandatory Skills

• VPN Expertise: Strong knowledge of VPN design, implementation, troubleshooting, and encryption algorithms (e.g., DES, 3DES, MD5, SHA, PKI).
• Core Networking Knowledge: Thorough understanding of the TCP/IP protocol suite, OSI model, and ability to apply this knowledge to network troubleshooting.
• Security and Firewall Experience: Proven knowledge of network security, access and perimeter control, vulnerability management, and intrusion detection. Familiarity with SYN flood, replay attacks, and related mitigation techniques.
• Data Network Experience: Proficiency in LAN/WAN hardware, physical layer infrastructure, data transmission facilities, and interconnecting devices.
• Troubleshooting Tools: Expertise in using utilities such as lookup, traceroute, ping, netstat, and packet analysis tools like Wireshark and tcpdump.
• Routing Protocols: Deep understanding of OSPF, BGP, RIP, IPSEC VPN, xDSL, and multicast technologies.
• Layer 2 Technologies: Strong knowledge of VLANs, VLAN tagging (802.1q), LACP, VLAN trunking, and STP (802.1D and other implementations).

Requirements

• B.E. in Electronics Engineering or Computer Science with 1 3 years of experience in supporting, designing, or implementing IP networks.
• Hands-on experience in troubleshooting, implementation, and support of large-scale IP networks.

Preferred Skills

• Application Layer Protocols: Working knowledge of FTP, DNS, SNMP, HTTP/HTTPS, LDAP, RADIUS, SMTP, and user authentication mechanisms.
• Security Products: Experience in providing support for security products such as firewalls, IPS/IDS, and Unified Threat Management (UTM) systems (e.g., URL filtering, antivirus, anti-spam).
• Operating Systems: Understanding and troubleshooting Windows, Unix, and macOS environments, including related technologies like NIS, NFS, Sun-RPC, and MS-RPC in security-enabled settings.

Preferred Certifications

JNCIA-JUNOS, JNCIS-Security, JNCIA-FWV, JNCIS-FWV, CCNA, CCNP or equivalent certifications are a strong plus.

Join us and be part of the Juniper Way, where we encourage you to:

• Be Bold
• Build Trust
• Deliver Excellence

Juniper Networks is an equal-opportunity employer, committed to fostering diversity and inclusivity. We do not discriminate based on race, religion, color, gender, sexual orientation, age, disability, or veteran status. Reasonable accommodation will be provided throughout the hiring process for individuals with disabilities.