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Currently, ManTech is seeking a motivated, career and customer-oriented Network Engineer, Mid-level to join our team in Annapolis Junction, MD.

Responsibilities include, but are not limited to:

• Analyze Network access trends and resolve bandwidth management issues for mission critical systems.

• Implement, troubleshoot, monitor, and maintain all aspects LAN/WAN/VPN/ networks for high availability of parallel development, testing and production environments.

• Review SNMP alerts, use protocol-line analyzers (sniffers) and conduct log forensics to determine root cause analysis and resolution of complex issues.

• Collaborate with Software and Database Developers, Windows and Linux Server Administrators and Security personnel to analyze Systems Development Life Cycle (SDLC) requirements, troubleshoot anomalies and determine appropriate firewall configuration implementation.

• Draft and submit recommended change request proposals necessary for timely mitigation of POA&Ms and CVE findings.

• Maintain system compliance with DHS\FISMA IT Security and Information Assurance objectives concerning privacy of passenger screening information.

• Installs new releases and system upgrades, evaluates, and installs patches, and resolves network related problems.

• Perform system backups and recovery.

• Maintains data files and monitors system configuration to ensure network integrity.

• Has knowledge of commonly used concepts, practices, and procedures within a particular field.

• Experienced in executing sound judgment to plan and accomplish goals.

• Perform a variety of tasks and work under general supervision.

• A certain degree of creativity and latitude is required. Typically reports to a project leader or manager.

Basic Qualifications:

• Experience in network troubleshooting and network management tools.

• Knowledge of networking concepts including VLANs, Switch ports, LAN, WAN, and VPN.

• Experience managing, monitoring, and troubleshooting an enterprise network on Cisco hardware.

• Minimum 2 years of experience analyzing, implementing, and troubleshooting firewall rules on Cisco devices.

• The ideal candidate will have the ability to work on individual tasks, as well as team-oriented tasks, to prioritize competing priorities, work under a cross-matrix management structure, required to be on-call and respond in a timely manner, should be a quick learner, must be able to adapt to quickly evolving technology and priority changes and have a desire to work closely with other members of the IT/development team.

• Candidate should be a proactive self-starter with exceptional follow up skills.

Preferred Qualifications:

• Knowledge of Network Automation

• Routing experience to include static routes, EIGRP and route redistribution.

• Switching experience to include understanding of virtual port-channels (vPC aka MEC), spanning tree, first hop redundancy protocols, and security best practices.

• Experience with firewall concepts and configurations to include creating/modifying access control lists, network/port address translation, and virtual private networks.

• Experience with load balancing concepts and configurations to include layer4/layer7, SSL offloading, and health monitoring.

• Monitoring of all network components via SolarWinds.

• A bachelor’s degree or equivalent in Computer Science, Information Systems, Engineering, Business, or other related scientific or technical discipline with 5 or more years related professional experience.

• Education can be substituted for 9 years of experience and should have attained associate or professional level certifications from Cisco, Juniper, or other vendors.

• Specific hardware:

• Cisco DNA Center

• Cisco 4100 Firepower

• Catalyst 9000

• Cisco Firepower Management Center

• Switching: Cisco 4500-E/4500R+E/3850/3750X/3560X

• Firewalls: Cisco ASA 5555X/5545X/5525X+FirePOWER

• Load balancers: F5 LTM, KEMP VLM

Clearance Requirements:

• Active DOD Secret clearance and ability to obtain agency suitability clearance

Physical Requirements:

• Must be able to remain stationary up to 75% of the time in an office environment.

• Must be able to traverse between one work location to another to accomplish work duties.

• Must be able to operate IT equipment such as a computer, copier, fax machine, etc.

• Must be able to communicate effectively with management and co-workers to exchange information accurately.

• Must be able to read, review and effectively respond to electronic as well as verbal communications.

• This position supports an IT operations environment. Candidates may need to support work on nights and weekends and may be included in an on-call rotation for after-hours support.

• Currently, the contract work location requirement is to work in the office at the customer’s site once weekly at a minimum. This is subject to change.