Information Technology Specialist Ii
Resume:
ANDRE DUFFUS
Stafford, VA *****
*******@*****.***
www.linkedin.com/in/andre-duffus-84a7471354
Clearance: Top-Secret / SCI US Citizen
PROFESSIONAL SUMMARY
Accomplished Linux Administrator with over ten years of experience in system administration and customer support of servers and workstations in both unclassified and classified network environments. Proven ability to analyze, design, and implement system software modifications to enhance performance and correct errors. Skilled in planning new hardware acquisitions, developing operating policies, and providing technical support to scientists and engineers. Demonstrated expertise in application installation, license management, software tracking/distribution, and backup/recovery of system configurations and user data files. Committed to ensuring compliance with federal IT policies and maintaining a high level of security.
SKILLS
●Linux System Administration: Extensive experience in managing Linux servers and workstations, including installation, configuration, and maintenance. Skilled in optimizing system performance and reliability.
●Technical Problem Solving: Strong analytical abilities in diagnosing and resolving technical issues, ensuring minimal disruption to operations.
●System Performance Optimization: Expertise in analyzing, designing, and implementing system modifications to enhance performance and correct errors.
●User Support: Proficient in providing support for application installation, license management, software tracking/distribution, and backup/recovery of system configurations and user data files.
●Hardware Management: Experienced with HP and Dell systems, including hardware configuration and troubleshooting.
●Security and Compliance: In-depth knowledge of DoD 8570 Information Assurance Workforce (IAWF) criteria, and compliance with FISMA and NIST guidelines.
●Scripting and Automation: Skilled in scripting languages such as Bash and Python for automating administrative tasks.
●Collaboration and Communication: Effective in working closely with scientists, engineers, and cross-functional teams to address technical challenges and develop solutions.
WORK EXPERIENCE
Linux system Administrator
Dominion System 2022 - Present
●Managed Linux servers for small businesses, ensuring high availability and security.
●Automated routine server tasks using Ansible, improving efficiency and reducing manual errors.
●Contributed to open-source projects on GitHub, staying engaged with the Linux community and up-to-date with the latest developments.
●Applied scripting skills (Bash, Python) to streamline server management tasks and improve system performance.
●Building complex Automated CI/CD pipeline using multiple interconnected tools.
●I have configured continuous monitoring using NewRelic, Prometheus and Grafana.
●I have installed and configured a web/application Server (JBoss/Wildfly. Nginx. Apache and Tomcat.
●Automating infrastructure provisioning and configuration using Terraform and ansible with Dynamic Inventory.
System Administrator Ellsworth Air Force Base (Contractor), UIC Government Services, LLC
Oct 2021 – Dec 2022
●Provided technical problem solving and in-depth consulting for system operations, ensuring optimal performance and reliability.
●Worked as part of a team responsible for administration and management of servers, end-user workstations, and potentially clustered systems in both unclassified and classified network environments.
●Analyzed, designed, and implemented system modifications to improve performance, correct errors, or fulfill specific needs.
●Participated in planning new hardware acquisitions, developing operating policies, interacting with vendors, educating customers, and communicating and collaborating with other projects within the organization.
●Worked closely with scientists and engineers to help them use workstations and servers to solve their computationally intensive problems.
●Supported individual user workstations and associated software, including application installation, license management, software tracking/distribution, and backup/recovery of system configurations and user data files.
●Assisted users in applying for accounts and approving user access.
●Implemented robust security measures, including authentication mechanisms, encryption protocols, and access controls.
●Developed and maintained comprehensive documentation for system configurations, procedures, and troubleshooting guides.
●Ensured compliance with federal IT policies and regulations, including FISMA and NIST guidelines.
Administrator Specialist US Army
Nov 2011 – Sep 2021
●Managed configuration and operation of Linux-based IT systems, ensuring optimal functionality and performance.
●Provided technical support and troubleshooting for servers, workstations, routers, switches, and printers.
●Developed and implemented disaster recovery plans and backup strategies.
●Conducted vulnerability assessments and penetration tests to identify and mitigate security risks.
●Managed cyber and network sensor activity to detect and respond to security incidents.
●Ensured compliance with regulatory requirements and industry best practices.
●Conducted training sessions and provided mentorship to junior IT staff.
●Assisted in the development and implementation of IT policies and procedures.
CERTIFICATIONS & EDUCATION
●CompTIA Security+ (Security Plus), JUL 2022, Exp. JUL 2025
●Cybersecurity Professional Penetration Tester Program, Divergence Academy, Addison, TX, 2022
●Master of Science (M.S.) in Data Management Systems, University of Maryland, 2021
●Bachelor of Science (B.S.) in Information Systems, Monroe College, New Rochelle, NY, 2006
HONORS & AWARDS
●Army Commendation Medal
●Army Achievement Medal (4th Award)
●Army Good Conduct Medal (3rd Award)
REFERENCES
Available upon request.
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