NETWORK ENGINEER IV

Description

Senior Network Engineer

Location: Onsite - Washington, DC Area

Clearance Requirements: Candidate must currently hold Public Trust (DOJ Preferred)

Employment Type: Contract - 26 weeks

Overview

A federal program supporting the U.S. Department of Justice (DOJ) Antitrust Division is seeking an experienced Senior Network Engineer to lead the design, configuration, monitoring, and optimization of a complex enterprise network infrastructure. This role requires deep expertise in advanced networking technologies, strong experience with monitoring and management platforms, and the ability to ensure secure, high-performance network operations in a mission-critical environment.

The ideal candidate is proactive, highly technical, and well-versed in tools such as Nagios, Cisco Prime, Cisco Identity Services Engine (ISE), and Splunk.

Key Responsibilities

• Lead the design, configuration, and maintenance of enterprise-level network environments to ensure reliability, scalability, and security.
• Configure and administer Cisco routers, switches, and firewalls in alignment with organizational requirements and industry best practices.
• Implement and support advanced network protocols including OSPF, BGP, VLANs, QoS, and IPSec.
• Utilize Nagios to monitor network device health, performance trends, and service availability.
• Develop proactive monitoring strategies to detect anomalies and reduce operational downtime.
• Troubleshoot network incidents and provide timely resolution to minimize service disruptions.
• Use Cisco Prime Infrastructure for network configuration, performance monitoring, and inventory management.
• Automate network provisioning, monitoring, and configuration tasks to enhance efficiency.
• Configure and manage Cisco ISE to enforce network access control policies across wired and wireless environments.
• Integrate Cisco ISE with other security tools to support centralized authentication, authorization, and accounting (AAA).
• Develop and refine Splunk dashboards, alerts, and reports for network performance, security events, and incident response.
• Maintain detailed documentation of network configurations, processes, troubleshooting guides, and incident resolutions.
• Identify opportunities for network optimization and implement solutions that improve performance and scalability.
• Automate routine tasks such as backups and performance checks using scripting tools.

Requirements

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Network Engineering, or related discipline (or equivalent experience/certifications).
• 5+ years of hands-on experience supporting large-scale enterprise networks.
• Strong expertise with Nagios for monitoring and performance analysis.
• Advanced experience using Cisco Prime for network management and automation.
• In-depth proficiency with Cisco ISE for access control and network security.
• Experience using Splunk for log management, analysis, and dashboard development.
• Advanced knowledge of networking protocols such as OSPF, BGP, MPLS, VLANs, QoS, and IPSec.
• Hands-on experience with Cisco routers, switches, and firewalls.
• Strong understanding of network security practices including ACLs, VPNs, IDS/IPS, and related technologies.
• Proficiency with scripting languages such as Python or Bash for automation.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Effective written and verbal communication skills.
• Ability to support and mentor junior network engineering staff.

Desirable Skills

• Experience with cloud networking and hybrid integrations involving AWS, Azure, or Google Cloud.
• Familiarity with SD-WAN technologies and network automation tools (e.g., Ansible, Terraform).
• Understanding of ITIL or other IT service management frameworks.

Certifications (Preferred)

• Cisco Certified Network Professional (CCNP) or higher.
• Cisco Certified Internetwork Expert (CCIE) highly desirable.
• Additional certifications such as Network+, security-focused certifications, or Splunk Certified Admin are a plus.

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