Systems Administrator, Incident Response and Cybersecurity analyst

EBRIMA MANJANG

Westerville, OH 475-***-**** ******.*******@**********.*** LinkedIn

PROFESSIONAL SUMMARY

Results-driven Cybersecurity and Networks professional with 4+ years of experience in Systems Administration, Network Security, and 6+ years in End-User Support. Proven expertise in infrastructure management, virtualization, threat detection, and incident response across enterprise and academic environments. Successfully led security deployments, automated IT support, and reduced operational costs through streamlined solutions. NSA Codebreaker Challenge 2023 participant, UPE Honor Society inductee, and Founder of GamCyber LLC. Actively seeking full-time roles in cybersecurity and IT infrastructure. CORE SKILLS

Cybersecurity Operations Threat Intelligence Pen-Testing Digital Forensics Reverse Engineering System Administration Windows/Linux/VMware Disaster Recovery Business Continuity Planning Network Defense Active Directory Azure AWS Incident Response SIEM Tools IT Support Virtualization (VMware, Hyper-V) WSUS Patch Management Microsoft 365 Cloud Security PowerShell Scripting SQL Servers Firewall/Router Configuration Backup & Restoration IT Policies Leadership Project Management Asset Management User Training Procurement

EDUCATION

University of New Haven, West Haven, CT

Master of Science in Cybersecurity and Networks — May 2024 University of The Gambia, KMC, The Gambia

Bachelor of Science in Information Systems — May 2018 PROFESSIONAL EXPERIENCE

GamCyber LLC, Columbus, OH

Founder & IT Service Provider — January 2025 – Present

• Delivered managed IT services for residential and small business clients, including end-to-end infrastructure upgrades, system hardening, endpoint protection, and compliance consulting.

• Designed and implemented scalable network and cybersecurity architectures, increasing client operational uptime by 30%.

• Deployed remote monitoring and management (RMM) tools for proactive system support and automated threat detection.

• Provided Tier 1–3 technical support, reducing recurring client issues by 45% through effective root cause resolution.

• Increased customer retention by 60% by tailoring IT solutions aligned with client goals and budgets. Safe Haven Security, Columbus, OH

Installation Technician — ADT Security Services Jul 2024 – Dec 2024

• Installed, tested, and configured smart home security systems including CCTV, smart locks, window/door sensors, smoke and CO2 detectors, and smart sirens.

• Conducted security risk assessments for 100+ households and provided clients with tailored recommendations for system improvements.

• Reduced repeat service calls by 30% through comprehensive user training on security device operations.

• Maintained compliance with safety standards and ADT protocols, ensuring consistent installation quality. University of New Haven, West Haven, CT

Student Support Technician Specialist — Jan 2023 – May 2024

• Designed and implemented an AI-powered chatbot on the Student Tech Support website to automate responses, reducing support load and improving response times.

• Installed, configured, and repaired student systems (Windows, macOS, Linux), ensuring devices were operational and optimized for academic use.

• Managed KACE Service Desk tickets, resolving technical issues related to system performance, account access, and hardware/software malfunctions.

• Provided Duo MFA setup, troubleshooting, and password reset services, ensuring secure student accounts and information.

• Conducted diagnostics and performance testing, recommending upgrades or adjustments to optimize devices for academic applications.

• Led IT onboarding sessions, trained students on system access and troubleshooting, and collaborated with IT staff to create resources, reducing follow-up inquiries and enhancing helpdesk efficiency. University of New Haven, West Haven, CT

Part time - Provost Scholar and Teaching Assistant — Aug 2023 – May 2024

• Collaborated with professors in curriculum planning, assignment grading, and delivery of lecture support materials.

• Delivered individualized and group tutoring in cybersecurity, networking, and systems administration, resulting in improved student comprehension and contributing to a 20% increase in average course pass rates.

Guaranty Trust Cooperation, Gambia Ltd, Banjul, The Gambia Systems Administrator — Oct 2018 – Jul 2022

• Administered 700+ systems (Windows Server, Red Hat, CentOS, Linux) and managed virtualization environments (VMware, ESXi, Hyper-V, Docker) for servers, jump-boxes, and 500+ endpoints.

• Led patch management using WSUS, conducted vulnerability assessments, and implemented fixes aligned with MITRE ATT&CK, CIS, NIST, ISO 27001, and DoD frameworks.

• Managed Active Directory, multi-site replication, user permissions, and deployed Untangle firewalls and Forescout NAC for endpoint security and compliance.

• Managed hybrid IT environments (on-prem and Azure), overseeing IIS, secure SMTP, FTP, and SFTP configurations.

• Configured DNS, DHCP, Cisco routers/switches, and implemented secure email and connectivity protocols for network reliability.

• Supported core banking systems, Swift Payment platform, and SQL/PLSQL/Oracle databases, ensuring data consistency, integrity, and high availability.

• Managed ProcessMaker for ticketing and automation, providing Tier 2/3 support using Dameware and RDP to 500+ staff. Led onboarding, hardware deployments, and issue resolution.

• Mentored two junior admins, handled IT budgeting, procurement, and vendor negotiations, reducing annual IT costs by 20%.

• Contributed to disaster recovery planning, backup strategies, and failover testing to ensure business resilience.

InsistGlobal, Banjul, The Gambia

Intern — Aug 2018 – Sept 2018

• Designed three user-friendly front-end applications.

• Supported application functionality testing and debugging. VOLUNTEER EXPERIENCE

Graduate Student Council, University of New Haven, West Haven, CT

• President (Jan 2024 – May 2024)

• Executive Vice President (Aug 2023 – Jan 2024)

• Led student governance initiatives, advocated for student welfare, and promoted mental health awareness.

• Served on multiple university committees focused on enhancing student life and educational outcomes. CERTIFICATIONS

CompTIA Security+ (In Progress), CompTIA Linux+ (In Progress), Azure Administrator Associate (Planned), AWS Certified Solutions Architect – Associate (Planned), CISSP (Planned), CCNA (Planned) TECHNICAL SKILLS

Cybersecurity & Systems: Ethical Hacking, Threat Hunting, Digital Forensics, Reverse Engineering, SIEM, Access Control, Anti-Virus & Malware Removal, Computer & Application Security, Network Defense Infrastructure & Cloud: Active Directory, Microsoft Azure, AWS, VMware (vSphere, ESXi, vSAN), Hyper-V, Microsoft 365, WSUS, System & Software Administration, Virtualization, Backup & Restoration, Disaster Recovery Networking: TCP/IP, VPN, DHCP, DNS, SMTP, SSL, Firewall/Router/Switch Configuration, Wireless Access Points, Network Monitoring

& Troubleshooting Tools & Languages: PowerShell, SQL Server, Elasticsearch, Oracle (VM), RDP, KACE, Group Policy Management Operations & Leadership: Project Management, IT Asset Management, Procurement, IT Policy Writing, User Training, Team Collaboration, Technical Support, Helpdesk Management.

Contact this candidate