Network Security Engineer

Position Title: Network Security Engineer

Location: Richmond, VA (Hybrid – 4 days onsite per week)
Clearance Requirements: None
Position Status: Contract (Long-Term, Potential for Extension)
Pay Rate: $57/- on W2 Per hour

Our government client in Richmond, VA is seeking an experienced and proactive Network Security Engineer to enhance and maintain the security posture of its enterprise IT infrastructure. This hands-on role is vital to safeguarding systems through continuous monitoring, incident response, and the implementation of cybersecurity best practices.

The ideal candidate brings strong technical expertise across network and endpoint security, a working understanding of Zero Trust architecture
, and proven experience using tools such as Qualys, Splunk, Cisco Secure Access, DUO, Thousand Eyes, and Cloudflare
. You’ll collaborate with IT teams to ensure network integrity, manage security incidents, and help drive continuous improvement in cyber resilience.

This position offers an excellent opportunity to work in a mission-driven, collaborative environment that protects critical infrastructure and supports secure digital operations.

• Incident Response & Monitoring

  • Detect, analyze, and respond to security incidents across networks, endpoints, and cloud environments.

  • Investigate alerts using Splunk, Solar Winds, Cisco Secure Endpoint
    , and Secure Network Analytics
    .

  • Log and manage incidents using Service Now and Jira
    .

• Identity & Access Management (IAM)

  • Administer and maintain IAM systems, role-based access controls, and MFA tools (
    DUO, Microsoft Authenticator
    ).

  • Manage Active Directory and Azure AD user provisioning.

  • Support Network Access Control (NAC) enforcement and policy configuration.

• Vulnerability & Threat Management

  • Conduct regular vulnerability assessments using Qualys
    .

  • Collaborate with internal teams to remediate vulnerabilities and strengthen defenses.

• Network & Cloud Security

  • Monitor and analyze network protocols (
    TCP/IP, DNS, HTTP/S) for threats.

  • Support cloud security initiatives using Cloudflare and Cisco Secure Access Suite
    .

  • Configure and maintain Cisco Thousand Eyes for network visibility and performance optimization.

• Documentation & Collaboration

  • Maintain accurate documentation of incidents, investigations, and remediation actions.

  • Contribute to security awareness and cross-functional security initiatives.

• 3+ years of experience in cybersecurity or IT operations
  .

• Strong knowledge of IAM principles, MFA implementation
  , and endpoint protection.

• Hands-on experience with Qualys, DUO, Solar Winds, Splunk, Cloudflare, and EDR solutions
  .

• Familiarity with Cisco Secure Access, Umbrella, Any Connect, Thousand Eyes
  , and Secure Network Analytics
  .

• Working knowledge of Active Directory
  , Azure AD (Entra), and ticketing systems (
  Service Now, Jira
  ).

• Solid understanding of network protocols and traffic analysis
  .

• Certification: CompTIA Security+ or equivalent required.

• 5+ years of experience in cybersecurity or network operations.

• Bachelor’s degree in Cybersecurity, Information Technology
  , or a related discipline.

• Experience with
  cloud platforms (Azure, AWS, GCP) and their native security tools.

• Familiarity with Microsoft Sentinel, Entra , Defender for Identity
  , and Zero Trust frameworks
  .

• Experience with NAC platforms such as Cisco ISE or Aruba Clear Pass
  .

• Advanced certifications preferred:

  • CISSP, CISM, CEH

  • Microsoft SC-200 / SC-300

  • Cisco Cyber Ops Associate

  • GIAC Security Essentials (GSEC)

At Seneca Resources
, we are more than just a staffing and consulting firm — we are a trusted career partner. With offices across the U.S. and clients spanning Fortune 500 companies to government agencies, we connect talented professionals with opportunities that drive both personal and professional growth.

Our consultants enjoy competitive pay
, comprehensive benefits
, and dedicated career support
. We invest in your success, celebrate your achievements, and help you make an impact through meaningful work with leading organizations nationwide.

Seneca Resources is proud to be an Equal Opportunity Employer
, committed to fostering an inclusive environment where all qualified applicants are encouraged to apply.