> Markdown version of [/jobs/ext/4422273-network-engineer-iii](https://www.wearedevelopers.com/jobs/ext/4422273-network-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer III - **Company:** Crimson Limited - **Location:** Springfield, VA, United States - **Experience:** Experienced - **Salary:** $127,399.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Network Analysis, Internet Protocol Security (IP SEC), IPv4, Multi-protocol Systems, Python (Programming Language), Network Security, Network Troubleshooting, Multicasting, Network Configuration and Change Management, Network Architecture, Network Diagrams, Network Monitoring, NIPRNet, Open Shortest Path First (OSPF), HP OpenView, Ansible, Simple Network Management Protocols, Syslog, Systems Integration, Wide Area Networks, Network Routers, Authentication Authorization Accounting (Server Program), Identity Services Engine, Enterprise Software Applications, Cloud Platform System, Firewalls (Computer Science), Juniper, Open Network Automation Platform, Cisco - **Published:** October 11, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=44576ea8af464b93 ## About the Role Security Clearance: active TS/SCI 8+ years related technical experience in Network and Transport technologies, tools, and techniques 4+ years' experience with large-scale enterprise/global networks in a high paced diverse environment Understanding and experience with the DoD Architecture Framework and other key DoD network architecture and strategic planning instructions Experience with Juniper, switches, routers, and firewalls. (MX, EX, QFX, SRX devices) Cryptographic devices (KG-175G/F/X, KG-142) Experience with Network analysis tools (Network monitoring, AAA solutions, security analysis tools, etc…) Experience with supporting IP services to connect to NIPRNET, SIPRNET, JWICS, and other external environments Experience with switching/LAN/L2 technologies, OSPF, BGP, MPLS, RSVP/LDP L2/3VPNs, VRFs, IKE/IPSec, GRE tunnels, MTU/MSS, Import/Export policies, IPv4, IKE/IPSEC, Multicast, COS/QOS, SNMP, SYSLOG, AAA, etc… Experience with planning hardware for a new site installation or recap effort of existing equipment, planning projects, drafting network diagrams, drafting engineering configurations Experience with troubleshooting network environments and providing regular updates Certifications: IAT II , Desired Skills JNCIA, JNCIS, JNCIP, CISCO CCNP, CCVP, CCNA or CCDP (or equivalent) ITIL v3 Foundations ISC2 CISSP Experience with integrating multi-vendor cloud environments Experience with network automation via Python/PYEZ or Ansible Experience with Open-Text Network Automation, Network Node Manager, ScienceLogic SL1, Forward Networks, Cisco ISE, Aruba Clearpass, Juniper Route Director, Juniper Security Appliance, Riverbed, Infoblox & NetTerrain ## Description Focus will be on Network Engineering, new project requirements, and operation and sustainment of existing infrastructure. This position does require travel to local sites up to 15% and may require travel to further CONUS/OCONUS locations on a voluntary basis. Coordination of system maintenance, monitoring and installation of multiple WAN/LAN environments encompassing multiple specializations, platforms and technologies. Assist with research and implementation of enterprise system-wide network solutions/capabilities/enhancements to support customer business/mission goals and objectives. Troubleshoot and resolve network media and components. Evaluate and monitor health and performance of the network including hardware and management software. Develop and maintain a road map for capabilities, operations, and technologies. Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions for customer approval before implementation. Support network traffic analysis and bandwidth optimization efforts to ensure attainment of performance and availability objectives. Evaluate and report on new/emerging network/communication technologies to enhance capacity, performance and reliability of the network. Evaluate and recommend changes and/or technology upgrades to address performance, standardization and industry best practices Follows all Customer network security processes and procedures, ensures compliance with all Government policies. Represent customer requirements in technical exchanges with other government agencies. Perform site surveys to new installations and technology refresh. Installs, maintains and troubleshoots satellite communications equipment. Develop and maintain network architecture diagrams.