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Sr. Information Systems Security Specialist - Top Secret clearance required

Paradyme
Clarksburg, United Statesfull_timeVerifiedPosted 5 Aug 2025

About the role

Overview

Paradyme, a CATHEXIS Company is a rapidly growing government technology leader that puts service first, for its customers, its team and the communities it supports. We harness DevSecOps and Agile development processes to deliver exceptional results for digital transformations. Based in Tysons Corner, VA, our award-winning culture sets it apart through its team’s deep commitment to service and collaboration with its customers, each other and the community. Learn more at PARADYME.

 

We are hring for a Senior Information Security Specialist for a position supporting a federal law enforcement agency.  This posiiton requiers an Active Top Secret security clearance to be considered.

Responsibilities

Position Summary:

We are seeking a highly qualified and experienced Senior Information Security Specialist with 10+ years of experience that will support the establishment, implementation, and maintenance of a life-cycle security model that develops, maintains, and dispositions of the customer. The Senior Specialist will assess information systems to ensure that the management, operational, personnel, and technical controls are functioning effectively during all phases of the system lifecycle. The Senior Specialist will focus on  Identifying and evaluating technical and operational security risks, threats, weaknesses, and vulnerabilities associated with information systems; Information system compliance with government standards and industry best practices, including NIST, OWASP, Common Criteria, DISA and SANS Institute, The Senior Specialist will take an important role in collaborating and providing security management, practices and federal policy expertise in the Agile development environments. The Senior Specialist be a leader responsible for coordinating with the contract team security personnel, especially the ISSO  and also to the numerous system owners to ensure their products are operated and maintained in accordance with government policies and practices.

 

Key Responsibilities:

  • Lead or serve as Senior Subject Matter Expert (SME) within SAFe-aligned project environments
  • Empower, guide security teams to perform at peak operational levels as Team Lead
  • Ensure system and data protection are mission-critical, business aligned
  • Collaborate with stakeholders to evaluate and mitigate technical and operational cybersecurity risks
  • Apply 800-53 controls to assess, improve, and document system security posture
  • Validate controls throughout the system lifecycle, supporting ISSOs where needed
  • Support selection and implementation of controls and industry best practices
  • Lead FISMA compliance efforts, take part in contingency planning /incident response exercises, real event remediation and reporting
  • Safeguard IT assets from malware and unauthorized activities via prevention and detection protocols
  • Review change requests, utilize change management tools to assess impact
  • Oversee documentation, POA&Ms, and continuous improvement of IA posture with cross-functional teams
  • Monitor system activity and audit logs using tools such as Splunk to detect and respond to anomalies
  • Utilize intrusion detection tools to validate integrity and critical file configurations
  • Conduct assessments, execute vulnerability remediation through periodic scans
  • Manage and troubleshoot system access controls and permissions across diverse user groups
  • Ensure privileged user access is managed and mandatory training is completed
  • Install and maintain timely updates of critical patches and security hotfixes
  • Demonstrate working knowledge of SSPs, including updating user guides and governance artifacts
  • If assigned, serve as Registration Authority (RA) for designated platforms to manage digital credentials
  • Promote cybersecurity awareness by leading or participating in training activities

Technical Experience or Knowledge

  • Minimum of 10+ years of security experience as an Senior Information Security Specialist equivalent position
  • Previous hands-on technical experience in networking, system administration and development; and utilizing Splunk for audit log review and system alerting.
  • Demonstrate experience with the following tools:
    • JCAM (Joint Cybersecurity Authorization Management)
    • Telos Xacta
    • GitLab
    • Atlassian JIRA and Confluence
    • Microsoft SharePoint
    • BigFix
    • Tenable Security Center
  • In addition, the ISSS should be capable of providing targeted input on key documentation efforts such as:
    • Interconnection Security Agreements (ISAs)
    • Security Assessment Reports (SARs) provided on an as-needed basis to support system author

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Company

Paradyme

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