Junior Network Administrator

Leidos is seeking a motivated Junior Network Administrator to support the installation configuration and day-to-day management of enterprise network infrastructure. This role is an excellent opportunity for an early-career network professional to gain hands-on experience with routing and switching platforms including Session Smart Router (SSR) / 128 Technology SD-WAN solutions in a structured and security-conscious environment. The ideal candidate demonstrates a solid foundation in networking fundamentals a willingness to learn vendor-specific technologies and the discipline to operate within DoD network standards.

Roles and Responsibilities

• Assist in the configuration deployment and ongoing management of routers switches and Session Smart Router (SSR) appliances across enterprise and edge network environments.
• Support the design and implementation of routing policies service policies and traffic steering configurations on SSR/128 Technology platforms under senior engineer guidance.
• Perform LAN switching administration including VLAN configuration spanning tree trunking and port security on Juniper EX Series and/or Cisco Catalyst platforms.
• Assist with the configuration and troubleshooting of routing protocols including OSPF and BGP (eBGP and iBGP) across enterprise WAN and data center environments.
• Monitor network health availability latency and throughput using network management tools; escalate anomalies and assist in root cause analysis.
• Support configuration and maintenance of firewall rules access control lists (ACLs) IPsec VPN tunnels and other network security controls.
• Execute software and firmware upgrades patch management and lifecycle maintenance activities for network devices in accordance with change management procedures.
• Maintain accurate and up-to-date network diagrams device inventories and standard operating procedures (SOPs).
• Coordinate with senior network engineers system administrators and security personnel to resolve network incidents and support planned infrastructure changes.
• Participate in on-call rotation and assist with troubleshooting during network outages or degraded service events.

BASIC REQUIREMENTS

• Security Clearance: Must have a DoD TS/SCI Clearance
• Certification: DoD 8570/8140-compliant certification at IAT Level II - CompTIA Security CE required at minimum.
• Networking Fundamentals: Demonstrated understanding of OSI model TCP/IP subnetting VLANs routing protocols (BGP OSPF static routing) and WAN technologies.
• Switching Experience: Practical experience with LAN switching concepts on Juniper EX Series or Cisco Catalyst platforms including VLANs STP and trunking.
• Education/Experience: Associates or Bachelors degree in Network Engineering Computer Science Information Technology or a related field or equivalent hands-on experience and certifications.
• Soft Skills: Strong analytical and troubleshooting mindset clear written and verbal communication and the ability to work effectively in a team environment under supervision.

PREFERRED QUALIFICATIONS

• Juniper/Cisco Certifications: Juniper Networks Certified Associate (JNCIA-Junos) or progress toward JNCIS-ENT; Juniper SSR-specific training or certification a strong plus or Cisco CCNA.
• BGP Experience: Familiarity with Border Gateway Protocol including eBGP and iBGP concepts peer configuration route policies and basic troubleshooting in a multi-site or service provider-adjacent environment.
• SSR / 128 Technology: Exposure to Juniper Session Smart Router (formerly 128 Technology) platforms including familiarity with session-based routing service and tenant models or WAN traffic steering concepts.
• LAN Switching Depth: Hands-on experience with advanced switching features such as RSTP/MSTP LACP/LAG Q-in-Q or Layer 3 switching on either Juniper EX Series or Cisco Catalyst hardware.
• Network Security: Working knowledge of IPsec VPN configuration zone-based firewall policies or experience with Juniper SRX Series security platforms.
• Scripting & Automation: Basic familiarity with network automation tools or scripting (Python Ansible or Junos) for configuration management or compliance checks.
• Additional Certifications: CompTIA Network or other vendor-neutral networking credentials demonstrating a broad networking foundation.

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

Pay Range:

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.