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Aptonet · 3 weeks ago

Network Engineer IV

DC-Baltimore Area

Contract

Onsite

Senior Level, Lead/Staff

8+ years exp

Aptonet is seeking a Senior Network Engineer to provide advanced network engineering support for a large U.S. Department of Justice Antitrust Division program. This role involves supporting the full system engineering lifecycle across complex enterprise environments, including planning, design, implementation, monitoring, optimization, and troubleshooting.

Enterprise SoftwareInformation TechnologyStaffing AgencyTraining

Growth Opportunities

No H1B

Security Clearance Required

U.S. Citizen Only

Hiring Manager

Mariana Ham

Responsibilities

Provide end-to-end network engineering support across the full system engineering lifecycle, including requirements analysis, design, development, integration, testing, and implementation

Lead the design, configuration, maintenance, and optimization of complex enterprise network environments to ensure performance, scalability, reliability, and security

Configure and manage Cisco routers, switches, and firewalls in accordance with best practices and organizational requirements

Implement and support advanced network protocols and technologies, including OSPF, BGP, MPLS, VLANs, QoS, and IPSec

Monitor network health, availability, and performance using Nagios , including proactive alerting and issue detection

Respond to network incidents, troubleshoot complex issues, and deliver timely resolutions to minimize downtime and operational impact

Manage network configuration, inventory, and performance using Cisco Prime Infrastructure , including automation and optimization of network provisioning

Configure, manage, and troubleshoot Cisco Identity Services Engine (ISE) to enforce wired and wireless access control policies

Integrate Cisco ISE with network security tools to support centralized AAA (authentication, authorization, and accounting)

Develop and maintain Splunk dashboards and alerts for network performance, incidents, and security events

Identify network optimization opportunities and implement improvements to enhance performance and scalability

Automate routine network management tasks such as configuration backups and monitoring to improve operational efficiency

Maintain accurate documentation for network configurations, procedures, troubleshooting steps, and incident resolutions

Provide guidance and technical leadership to other personnel as required and interact regularly with senior management and customer stakeholders

Qualification

Network engineeringCisco routersSwitchesCisco Identity Services EngineNetwork protocolsNetwork monitoring (Nagios)Cisco Prime InfrastructureSplunkNetwork security best practicesScripting (Python/Bash)Analytical skillsCloud integrationSD-WAN familiarityNetwork automation toolsITIL knowledgeIndustry certificationsCommunication skillsIndependent work

Required

Hands-on experience designing and supporting large, complex enterprise network environments

Strong experience with Nagios for network monitoring, alerting, and performance analysis

Expertise with Cisco Prime Infrastructure for network management, configuration, and automation

In-depth knowledge and hands-on experience with Cisco Identity Services Engine (ISE) for access control and network security

Proficiency using Splunk for network log management, analysis, and custom dashboards

Advanced knowledge of networking protocols and technologies, including OSPF, BGP, MPLS, VLANs, QoS, and IPSec

Extensive experience with Cisco routers, switches, and firewalls

Strong understanding of network security best practices, including ACLs, VPNs, and IDS/IPS

Proficiency with scripting languages such as Python and/or Bash for network automation

Strong analytical and troubleshooting skills for resolving complex network issues

Excellent written and verbal communication skills for collaboration with technical teams, management, and customers

Ability to work independently under consultative direction and manage complex assignments

Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field (relevant certifications and experience may be considered)

8+ years of experience performing complex network engineering assignments aligned to the scope of this role

U.S. Citizenship required

Public Trust clearance required; candidates with an active DOJ Public Trust are strongly preferred, though candidates without clearance may be considered (clearance processing can take up to 16 weeks and includes personal disclosure and soft credit check)

Willingness to work onsite in Washington, DC, five days per week

Credit check required