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Imri Technology & Engineering Solutions

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Network Engineer - Cisco & Zero Trust Architecture

IMRI Technology & Engineering Solutions

Ashburn, VA • On-site

Full-time

Medical, Life, Retirement, PTO

Posted 9 days ago

Job description

POSITION: Network Engineer - Cisco & Zero Trust Architecture
CLEARANCE REQUIREMENT: Must be eligible to obtain a Public Trust Tier 2 clearance or hold an active DoD security clearance
POSITION OVERVIEW: IMRI is seeking a skilled and mission-driven Network Engineer to support a secure, enterprise-scale Cisco networking environment within a federal setting. This role is responsible for designing, implementing, and maintaining resilient network architectures aligned with Zero Trust principles and federal cybersecurity standards. The ideal candidate brings hands-on expertise in network engineering, security, and operations, along with a strong understanding of compliance frameworks and secure infrastructure design. This position offers the opportunity to contribute to high-impact initiatives that enhance security, reliability, and operational excellence for our federal customers.
KEY RESPONSIBILITIES:
Network Engineering & Operations
  • Design, implement, and support enterprise network infrastructure across core, distribution, access, and edge layers
  • Ensure high availability, scalability, and performance of Cisco-based network environments
  • Troubleshoot complex issues and conduct root cause analysis for network incidents and outages

Network Security & Compliance
  • Implement and maintain network security controls aligned with NIST SP 800-53 and Zero Trust Architecture (NIST SP 800-207)
  • Enforce Zero Trust principles, including network segmentation, micro-segmentation, and continuous verification
  • Perform system hardening and maintain secure configurations in alignment with Cisco and industry best practices
  • Support vulnerability management, including patching, firmware updates, and remediation efforts

Infrastructure & Network Services
  • Configure, manage, and troubleshoot routing, switching, and network services (VLANs, DNS, DHCP, VPNs)
  • Implement and maintain 802.1X network access control to secure endpoint connectivity
  • Secure network perimeters through firewall management, ingress/egress filtering, and multi-factor authentication

Monitoring & Incident Response
  • Monitor network performance, availability, and security events using enterprise tools
  • Integrate network components with centralized logging and SIEM platforms
  • Support incident response efforts, including traffic analysis, containment actions, and forensic data collection

Access Control & Zero Trust Implementation
  • Design and enforce least-privilege, identity-based access controls across all network layers
  • Develop and maintain segmentation strategies to protect sensitive systems and prevent lateral movement

Change Management & Documentation
  • Support formal change management processes, including security impact analysis and approvals
  • Maintain accurate network diagrams, configurations, and asset inventories
  • Develop and update Standard Operating Procedures (SOPs) to support audit readiness and operational continuity

Collaboration & Support
  • Serve as a technical escalation point for complex service desk requests
  • Collaborate with cybersecurity, cloud, and Microsoft engineering teams to deliver integrated solutions
  • Provide technical guidance to improve network performance and security posture

REQUIRED QUALIFICATIONS:
  • Proven experience with Cisco networking technologies in enterprise environments
  • Strong expertise in routing, switching, and core networking protocols
  • Experience implementing Zero Trust architecture and segmentation strategies
  • Knowledge of NIST SP 800-53 and NIST SP 800-207 frameworks
  • Hands-on experience with firewalls, VPNs, 802.1X, and network access controls
  • Experience with network monitoring, logging, and SIEM integration
  • Demonstrated ability to perform vulnerability remediation and system hardening
  • Strong troubleshooting and analytical skills, including root cause analysis
  • Experience working within structured change management and documentation practices

PREFERRED QUALIFICATIONS:
  • Experience supporting federal government or regulated environments
  • Familiarity with Cisco Secure Configuration Guides and security hardening practices
  • Experience with NIST Risk Management Framework (RMF) processes
  • Knowledge of automated patching and firmware lifecycle management

IMRI offers top-tier benefits that include: medical coverage through nationally recognized carriers, ancillary coverages, paid vacation and sick leave in compliance with all state and local laws, 401(k) with company match, company paid life insurance and LTD, and several additional voluntary coverages.
Pay will be commensurate with the experience, skills, and qualifications that the candidate brings to the position.
Equal Employment Opportunity Statement
IMRI is an Equal Employment Opportunity employer. IMRI prohibits unlawful discrimination and harassment and provides equal employment opportunity to all applicants and employees consistent with applicable federal, state, and local laws. Employment decisions are based on qualifications, merit, business needs, and other lawful job-related factors without regard to race, color, religion, sex, national origin, age, disability, protected veteran status, genetic information, or any other characteristic protected by law. As a federal contractor, IMRI complies with Section 503 of the Rehabilitation Act and VEVRAA and takes affirmative action with respect to qualified individuals with disabilities and protected veterans as required by law.

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