Network Engineer III

1 day ago

Manassas, Virginia, United States Epsilon Full time
Job Summary:

Epsilon is seeking a highly skilled Network Engineer III to join our team. As a key member of our network engineering team, you will be responsible for designing, implementing, and optimizing network infrastructure for large-scale data centers.

Key Responsibilities:

Design and implement network infrastructure for data centers, ensuring high availability and security.

Collaborate with cross-functional teams to ensure secure, efficient, and scalable network solutions.

Assist in the deployment of new data center build-outs, working closely with engineering teams on planning and execution.

Troubleshoot, monitor, and optimize network performance, particularly in CISCO environments.

Ensure network operations adhere to federal security standards and regulatory compliance.

Provide technical support and guidance to junior engineers, assisting with complex troubleshooting and design issues.

Collaborate with project management teams to meet deadlines and project objectives.

Maintain up-to-date network documentation, including designs, configurations, and procedures.

Participate in the evaluation and selection of networking hardware, software, and tools.

Communicate effectively with stakeholders and technical teams to support project goals.

Provide technical leadership and mentorship to other team members and ensure best practices are followed.

Requirements:

5+ years of experience in network engineering, with hands-on experience in configuring and managing CISCO environments, including routers, switches (Nexus, Catalyst), and firewalls (Cisco ASA, Firepower).

Expertise in routing and switching protocols, including OSPF, BGP, EIGRP, and HSRP, as well as advanced switching technologies such as VLANs, VTP, STP, and EtherChannel.

Proven experience with network security technologies, including IPSec VPNs, SSL VPNs, NAT, access control lists (ACLs), and integration with firewalls and intrusion prevention systems (IPS).

Advanced troubleshooting and problem-solving skills using tools like Wireshark, Cisco DNA Assurance, and SolarWinds for diagnosing complex issues in multi-layered network environments.

Extensive experience with data center networking, including new build-outs, migrations, and upgrades, with a focus on redundancy, high availability, and disaster recovery solutions.

Proficiency with network monitoring and optimization tools, such as Cisco Prime, SolarWinds, NetFlow, and SNMP-based systems for performance tuning and proactive network management.

In-depth knowledge of enterprise network design, including architecture, segmentation, load balancing, and the integration of multi-vendor solutions in CISCO-dominant environments.

Experience with network automation and scripting tools, such as Python, Ansible, or Cisco DNA Center, to streamline configurations, updates, and network operations.

Strong communication and collaboration skills, with the ability to work effectively across teams and manage stakeholder expectations in complex projects.

Additional Requirements:

Must have an active Top Secret with SCI eligibility.

Will be subject to a federal background investigation.

Must be able to travel regularly, both domestically and internationally, international travel will require a current US Passport.

Physical Demands and Working Conditions:

Prolonged periods of computer desk work.

Dexterity of hands and fingers to operate a computer keyboard and other computer components.

Speaking and hearing are sufficient to converse and understand conversations, both in-person, telephone, and virtual meetings.

The cognitive skills needed to complete tasks, including abilities such as learning, remembering, focusing, categorizing, and integrating information for decision-making, problem-solving, and comprehending.

Ability to learn new tasks, remember processes, maintain focus, complete tasks independently, make timely decisions in the context of a workflow, and the ability to communicate with managers and co-workers.

Mental aptitude to respond appropriately in high-pressure situations or deadline-driven environments.

Maintain a professional emotional response when working with others.

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