Senior Information Systems Security Engineer

We're looking for game changers. People who love what they do and who they do it for. Providing consulting services in operational support, intelligence collection, reporting, and data governance, R2C is a leader in delivering solutions for high priority national security concerns. Are you ready for a change?

R2C is seeking a Senior Information Systems Security Engineer to support a mid-size mission network infrastructure via the implementation and daily operation of network and system monitoring capabilities.

We welcome the most challenging problems facing our national security and apply intellect, talent, and innovation to reach feasible and valuable solutions to each challenge. That means we expect our employees to bring their “A game,” and you have the right to expect the same from the company that employs you. We want to hear your ideas. We want to hear your concerns. We want to make sure you have what you need to do the best you can on the job and grow in your career with us over time. Almost all companies say they have a culture of inclusiveness and that they value employee input, but R2C puts that statement to work every day. It’s time for a change. Come and experience a company that actually cares.


TOP SECRET/SCI with Polygraph


  • Perform detailed log analysis, network traffic monitoring, and vulnerability risk assessment

  • Conduct assessments of existing systems to identify vulnerabilities, and work with internal and external technical stakeholders to mitigate and eliminate risks

  • Assist the technical team (where possible) with network/system optimization and performance tuning


  • A Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or similar discipline

  • Two (2) additional years of related application/software programming experience in lieu of a Bachelor's degree

  • 10+ years' programming and software development experience

  • An active Top Secret/SCI with Polygraph clearance

  • Substantive experience installing, operating, and maintaining system and network monitoring tools (e.g. Splunk, WSUS, Snare, Wireshark, and Solarwinds, etc.)

  • Substantive experience with incident response, containment, and mitigation

  • Knowledge of common cyber-attack methods

  • Experience conducting detailed log analysis and system monitoring to understand system status, detect system breaches, and identify other system anomalies

  • Ability to perform vulnerability identification, risk analysis, and remediation

  • Ability to evaluate worldwide security events to assess system impact and/or risk (e.g. zero day exploits, hardware failures, and/or sponsored cyber-attacks)

Preferred Qualifications: 

  • Familiarity with Amazon Web Services (AWS) and other cloud architectures

  • Strong understanding of VPNs, VLANs, and TCP/IP

  • Experience with Linux operating systems

  • Experience OS hardening using tools such as CIS-CAT

  • Ability to work independently with minimal supervision

  • Experience with navigating an enterprise security accreditation process

1700 N Moore St. 

Suite 2110

Arlington, VA 22209

P: 703-535-5511 • F: 703-997-5515

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