Dukenson Merisier
Welcome to Dukenson Merisier IT Services!
I am a cybersecurity professional with over 15 years of experience supporting Department of Defense environments, system security engineering efforts, risk management activities, and compliance initiatives across highly regulated environments.
My background includes Risk Management Framework (RMF), NIST 800-53 cont
Dukenson Merisier
Intro
Welcome to the official website of Dukenson Merisier.
I am a cybersecurity professional with over 15 years of experience supporting both Department of Defense environments and commercial organizations. My expertise spans Risk Management Framework (RMF), system security engineering, NIST compliance, vulnerability management, and endpoint security.
In addition to supporting mission-critical defense systems, I also provide practical cybersecurity and IT solutions for small businesses, helping them secure their networks, protect their data, and operate with confidence in today’s threat landscape.
My approach combines real-world security experience with hands-on technical execution — ensuring that systems are not only compliant, but also resilient, efficient, and aligned with operational needs.
Whether supporting complex government systems or small business environments, my focus remains the same: delivering reliable, effective, and mission-driven cybersecurity solutions.
what I do
What I Do
I provide cybersecurity and IT services designed to help organizations protect their systems, secure their data, and maintain reliable operations.
My services are tailored to both mission-critical environments and small to mid-sized businesses, combining enterprise-level security practices with practical, real-world solutions.
Cybersecurity & Risk Management
• Risk assessments and security evaluations
• Implementation of security best practices aligned with NIST standards
• Vulnerability identification and remediation support
• System hardening and security baseline enforcement
Endpoint Security & Protection
• Deployment and management of antivirus and endpoint detection solutions (EDR)
• Patch management and system updates
• Device security configuration and monitoring
• Protection against malware, ransomware, and unauthorized access
Network & System Security
• Secure network setup and configuration
• Firewall and access control implementation
• User account and permission management
• Secure system deployment and configuration
Compliance & Security Framework Support
• Support for NIST-based security controls (800-53 / 800-171)
• RMF support and documentation guidance
• Security documentation and compliance alignment
• Continuous monitoring and security posture improvement
Small Business IT Support
• IT system setup and configuration
• Troubleshooting and technical support
• Secure onboarding of users and devices
• Ongoing IT and security support for daily operations
My goal is to deliver solutions that are secure, practical, and aligned with your business needs — ensuring your systems are protected without slowing down your operations.
IT Services for Small Businesses
Network Setup and Maintenance
We specialize in setting up and maintaining networks for small businesses. Our team of experts ensures your network is secure, reliable, and always up-to-date.
Data Backup and Recovery
We provide data backup and recovery services to ensure your business critical data is always safe and secure. We use the latest technologies to backup your data and recover it quickly in case of any disaster.
Cloud Solutions
We offer a wide range of cloud solutions to help your business achieve productivity and efficiency. Our cloud services include cloud hosting, cloud storage, and cloud application development.
Core Areas of Expertise
Risk Management Framework (RMF)
• NIST SP 800-53 and NIST SP 800-171
• eMASS and authorization package support
• System Security Engineering
• Endpoint & Device Security
• STIG implementation and remediation
• Vulnerability management
• Incident response support
• DevSecOps and cloud security
• DoD cybersecurity compliance
Professional HIighlights
• Cybersecurity professional with 15+ years of experience
• Experience supporting defense and regulated environments
• Master’s degree in Cybersecurity
• CASP+ certified
• Air National Guard Cyber Defense Operations background
Our Approach
We take a personalized approach to each client's needs, working closely with them to understand their unique challenges and develop customized solutions.
PROFESSIONAL SUMMARY
Professional Summary
Dukenson Merisier is a cybersecurity engineer with over 15 years of experience supporting federal and defense environments.
His background includes RMF implementation, security control validation, compliance support, vulnerability management, and cybersecurity engineering across highly regulated systems.
He has contributed to authorization efforts, system hardening, continuous monitoring, and mission-critical cybersecurity initiatives aligned with national security objectives.
EXPERIENCE
Professional Experience
Air National Guard – Cyber Defense Operations Specialist (1D7X1D)
Supports cyber defense operations, system protection, and mission assurance activities within a military environment. Contributes to cybersecurity readiness, incident response support, and protection of critical systems aligned with national defense objectives.
Cybersecurity Engineer / ISSE – Oasis Systems
Led and supported RMF implementation, security control validation, ATO package development, and continuous monitoring for defense-related systems in a highly regulated environment.
ISSM – MIT Lincoln Laboratory
Supported cybersecurity oversight, risk analysis, compliance activities, and system security management aligned with mission requirements.
Systems Security Engineer – General Dynamics Mission Systems
Supported system security engineering, participated in design reviews, and implemented cybersecurity controls for DoD systems.
PROJECTS
Cybersecurity Projects
RMF Implementation Support
Supported system categorization, control selection, implementation, and authorization activities.
ATO Package Development
Contributed to SSPs, POA&Ms, and compliance documentation.
STIG and Vulnerability Remediation
Supported system hardening and vulnerability reduction through DISA STIGs and monitoring.
System Security Engineering
Participated in architecture reviews and cybersecurity planning.
DevSecOps Integration
Supported integration of security into development pipelines and operational environments.
OFFICIAL UPDATE (VERY IMPORTANT)
This page provides a factual and professional overview of publicly available information associated with the name Dukenson Merisier.
Public information should be understood in the context of the most current and accurate updates available through appropriate official channels.
Dukenson Merisier remains committed to professionalism, continued service, and contributions within cybersecurity and mission-focused environments.
This website exists to provide accurate and professional information regarding experience, qualifications, and cybersecurity expertise.
Contact Us
Email: dukenson27@gmail.com
Hello
This website uses cookies.
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.