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Senior Network EngineerSi Tec Consulting • Springfield, Missouri, United States
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Senior Network Engineer

Si Tec Consulting
  • US
    Springfield, Missouri, United States
  • US
    Springfield, Missouri, United States
Apply Now

About

Network Engineer III Location:
Springfield, VA
Position Overview We are seeking an experienced
Network Engineer III
to support enterprise-scale
wide area (WAN), local area (LAN), and campus area (CAN)
networks operating across multiple security domains. This role focuses on
network engineering, new capability implementation, and ongoing operations and sustainment
of mission-critical infrastructure.
Key Responsibilities
Coordinate system maintenance, monitoring, and installation across multiple WAN/LAN environments spanning diverse platforms and technologies
Support research, design, and implementation of enterprise-wide network solutions to meet operational and mission objectives
Troubleshoot and resolve issues related to network media, devices, and components
Monitor and evaluate network health and performance using hardware and management tools
Develop and maintain a technical roadmap for network capabilities, operations, and emerging technologies
Assist in the development and execution of test plans and supporting documentation for network configuration changes prior to implementation
Perform network traffic analysis and bandwidth optimization to meet performance and availability targets
Evaluate and report on new and emerging networking and communications technologies
Recommend improvements and technology upgrades aligned with performance goals, standardization, and industry best practices
Ensure compliance with all applicable network security processes, procedures, and government policies
Represent operational and technical requirements during coordination with external organizations and stakeholders
Conduct site surveys for new installations and technology refresh efforts
Install, maintain, and troubleshoot satellite communications equipment
Develop and maintain network architecture and topology diagrams
Required Qualifications
Active TS/SCI security clearance
8+ years
of experience in network and transport technologies, tools, and methodologies
4+ years
supporting large-scale enterprise or global networks in fast-paced, complex environments
Working knowledge of
DoD Architecture Framework (DoDAF)
and related network architecture and planning guidance
Hands-on experience with
Juniper networking equipment
(MX, EX, SRX switches, routers, and firewalls)
Experience with
Type 1 cryptographic devices
(e.g., KG-175, KG-245 or equivalent)
Proficiency with network monitoring and analysis tools (e.g., network automation, analytics, IPAM, and performance management tools)
Experience with firewall and VPN technologies (IPSec/IKE, GRE, SRX platforms)
Experience supporting IP services across multiple classified and unclassified environments
IPv4/IPv6
VPN
Multicast
QoS
SDN
SNMP
VoIP / VTC
Strong understanding of routing and transport protocols and technologies, including:
OSPF, BGP
MPLS, RSVP/LDP
Layer 2/3 VPNs, VRFs
MTU considerations
Import/Export routing policies
IAT Level II certification
(per DoD 8570/8140 requirements)
Preferred Qualifications
Master's degree in computer science or a related technical discipline
Industry certifications such as:
Juniper (JNCIA / JNCIS / JNCIP)
Cisco (CCNA / CCNP / CCVP / CCDP or equivalent)
ITIL v3 Foundations
ISC² CISSP
CompTIA Security+
About SITEC SITEC is an employee- and customer-focused Information Technology and Professional Services firm specializing in the design, development, and delivery of state-of-the-art technology solutions. Our expertise spans cybersecurity, software engineering, and systems engineering in support of mission-critical government programs.
We provide full life-cycle support to our customers, including continuous operations for Software Support Activities and Software Production Facilities. At SITEC, our people are our greatest asset, and we are committed to fostering an environment where technical excellence, innovation, and professional growth thrive.
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  • Springfield, Missouri, United States

Languages

  • English
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