Work Preference
Summary
Overview
Work History
Education
Skills
Certification
Languages
Timeline
Generic
Open To Work

Sinan Alathari

Potomac Falls,VA

Work Preference

Job Search Status

Open to work
Desired start date: Immediately

Desired Job Title

Information Assurance/Security Policy Engineer, Senior Technical SpecialistInformation System Security Officer (ISSO), LeadInformation System Security Officer (ISSO)Senior Information System Security Officer

Work Type

Full Time

Location Preference

On-SiteHybridRemote
Location: Potomac Falls, VA, USSterling, VA
Open to relocation: No

Salary Range

$185000/yr - $200000/yr

Important To Me

401k matchTeam Building / Company RetreatsPaid time offWork from home optionHealthcare benefitsPersonal development programsFlexible work hoursCompany CultureWork-life balanceCareer advancement

Summary

Achieved successful delivery of multiple Authority to Operate (ATO) processes for government enterprise systems through effective risk management framework application. Delivered comprehensive certification and accreditation using Xacta and JCAM, resulting in enhanced compliance. Authored key security documents that strengthened organizational security posture. Managed vulnerabilities and ensured STIGs compliance via Nessus, leading to improved risk mitigation. Analyzed log alerts with Splunk, contributing to proactive security measures. Earned recognition from Peraton for outstanding contributions to security initiatives.

Overview

9
9
years of professional experience
1
1
Certification

Work History

Information Assurance/Security Policy Engineer, Senior Technical Specialist

Peraton
Washington, DC
08.2018 - 02.2026
  • Identified, isolated, and resolved complex cybersecurity issues across EOUSA OCIO, ensuring operational continuity.
  • Managed security/privacy operations for Enterprise Voice Services, Cisco Webex Cloud, WLAN, and VPN III systems, maintaining full lifecycle compliance.
  • Led a weekly security status meetings with System Owners, Engineers, and Project Managers to provide updates on the current security posture of assigned systems.
  • Secured ATOs for EVS systems by aligning controls in JCAM to system categorization.
  • Conducted vulnerability scans via Tenable Nessus and monitored logs with Splunk dashboards, uncovering critical findings that were remediated to reduce risk exposure.
  • Created/maintained/completed +200 POA&Ms in JCAM-tracked weaknesses, coordinated engineering remediation, and closed VPR findings.
  • Collaborated with the Trellix ePO team to deploy vulnerability notices and security bulletins using Tenable Security Center and ePO policies, ensuring timely remediation of identified risks across the organization.
  • Trained and onboarded ISSO team members on RMF processes and XACTA Continuum, and produced weekly security status reports for DOJ/AD leadership, which improved visibility of compliance posture and accelerated decision-making.

Information System Security Officer (ISSO), Lead

CACI
Washington, DC
05.2017 - 08.2018
  • Led ISSO team supporting DHS/FPS/ITD, creating onboarding processes with tools, docs, and training.
  • Responded to ISSO queries on XACTA, POA&Ms, FISMA scorecards, C&A, Nessus scans, and ISVMs.
  • Supported major FPS applications through C&A phases towards ATO and continuous monitoring.
  • Coordinated with system owners, PMs, and tech teams on patching, CRs, scans, and security docs.
  • Acknowledged ISVM alerts and partnered with patching team for compliance; provided daily status reports to FPS ISSM.
  • Presented XACTA documentation and scan-update procedures, using JCAM/IACS and Tenable Security Center, to the FPS director, which secured approval to move forward with the ATO and continuous-monitoring plan.

Information System Security Officer (ISSO)

Vencore
Washington, DC
10.2016 - 05.2017
  • Updated SSPs, CPs, IRPs, POA&Ms, and artifacts in IACS; secured system ATO in less than six months.
  • Maintained ISVM alerts for compliance, collected and shared Nessus vulnerability scans, and coordinated remediation that closed identified findings, improving the system's security posture.
  • Delivered weekly system status reports to FPS ISSM and stakeholders.

Education

Master of Science - Information Technology

Virginia Polytechnic Institute and State University
Falls Church, VA
01-2012

Bachelor of Science - Computer Engineering

Baghdad University
Baghdad, Iraq
01-1996

Skills

Executed risk management framework (RMF) processes to enhance organizational security posture

Assisted teams in understanding NIST SP 800-series guidelines Supported compliance efforts by providing relevant documentation Helped maintain security standards through regular updates and training

Assisted teams in completing projects on schedule and within budget constraints Supported project coordination efforts to enhance team collaboration Contributed to the development of project documentation and reports

Assisted in maintaining compliance with FISMA regulations Supported teams in implementing security controls and risk management strategies Contributed to documentation and reporting processes for audits

Monitored ongoing processes to identify areas for improvement Assisted teams in maintaining compliance with established standards Supported continuous evaluation of operational effectiveness

Assisted teams in completing projects on schedule and within budget Supported project coordination efforts to enhance team collaboration Contributed to problem-solving initiatives to improve project outcomes

Assisted teams in managing project timelines and deliverables Supported project coordination efforts to meet objectives Contributed to maintaining project documentation and communication

Assisted teams in managing project tasks to meet deadlines and objectives Supported project coordination efforts to ensure smooth workflow Contributed to team discussions to enhance project outcomes

Managed Tenable Security Center operations, ensuring optimal performance and security compliance

Assisted teams in utilizing Splunk for data analysis and visualization Supported troubleshooting efforts by analyzing logs and identifying patterns Contributed to documentation of processes and best practices for Splunk usage

Assisted teams in utilizing Trellix EPO for project management tasks Supported project tracking and documentation processes Contributed to maintaining project timelines and deliverables

Assisted in managing software deployment and updates using SCCM\nSupported troubleshooting efforts for system issues related to SCCM\nCollaborated with team members to maintain system integrity and performance

Assisted teams in tracking project progress using Jira Supported project management efforts by organizing tasks and timelines Facilitated communication among team members to enhance collaboration

Assisted teams in managing AWS resources to support project needs Contributed to the deployment of cloud solutions to enhance operational efficiency Provided technical support for AWS services to ensure smooth project execution

Implemented virtualization solutions using VMware to enhance system efficiency

Assisted in maintaining backup systems for data recovery Supported team members in executing backup protocols Contributed to the organization of backup files for easy access

Assisted teams in navigating FedRAMP compliance processes Supported documentation efforts for security assessments Aided in maintaining compliance with federal standards

Assisted teams in completing projects on schedule and within budget Supported project coordination efforts to enhance team collaboration Contributed to problem-solving initiatives to improve project outcomes

Assisted teams in completing projects on schedule and within budget Supported project coordination efforts to enhance team collaboration Contributed to problem-solving initiatives to improve project outcomes

Assisted teams in completing projects on schedule and within budget Supported project coordination efforts to enhance team collaboration Contributed to problem-solving initiatives to improve project outcomes

Executed comprehensive analysis of pias to enhance operational efficiency

Assisted teams in achieving project goals by providing support and resources Collaborated with colleagues to streamline processes and improve efficiency Contributed to project documentation and reporting to enhance communication

Executed strategic analysis and reporting for SAR initiatives

Assisted teams in developing standard operating procedures to enhance workflow efficiency Supported project coordination to meet deadlines and objectives Contributed to documentation efforts for process improvements

Led change management initiatives to enhance organizational efficiency

Executed vulnerability management processes to enhance organizational security posture

Executed incident response protocols to mitigate security threats

Assisted in patching software to enhance system performance and security Collaborated with team members to troubleshoot and resolve issues Supported users by providing guidance on software updates and maintenance procedures

Assisted in maintaining accurate logs for project activities Supported team members in tracking progress and identifying issues Contributed to the organization of documentation for easy access

Certification

  • AWS Certified Security - Specialty
  • AWS Certified Cloud Practitioner (CLF-C01)
  • Cybersecurity: Technology, Application and Policy (MIT)
  • CompTIA Secure Infrastructure Specialist (CSIS)
  • CompTIA IT Operations Specialist (CIOS)

Languages

Arabic
Native or Bilingual

Timeline

Information Assurance/Security Policy Engineer, Senior Technical Specialist

Peraton
08.2018 - 02.2026

Information System Security Officer (ISSO), Lead

CACI
05.2017 - 08.2018

Information System Security Officer (ISSO)

Vencore
10.2016 - 05.2017

Master of Science - Information Technology

Virginia Polytechnic Institute and State University

Bachelor of Science - Computer Engineering

Baghdad University