Samson Tesfamichael
Cybersecurity Researcher

📍 Remote

Provided end-to-end technical support for business clients, managing hosting environments, resolving account issues, and ensuring smooth website operations.

• ▸Established and configured user accounts, DNS settings, SSL certificates, and email services for new clients
• ▸Resolved password and login issues, troubleshoot access problems, and guided clients through technical setup steps
• ▸Managed Linux-based hosting environment including DNS management, SSL/TLS configuration, and email services
• ▸Performed server-side optimization including PHP tuning and database query optimization for improved page load speeds
• ▸Implemented security hardening measures: firewall rules, file permissions, and automated malware scanning
• ▸Documented troubleshooting procedures and maintained support reports for recurring issues
• ▸Prioritized and managed multiple client tickets while meeting SLA response times

📍 Mekelle, Tigray, Ethiopia

Established a self-hosted cybersecurity home lab to continue practical learning while seeking full-time opportunities.

• ▸Design and simulate secure network architectures using OpenBTS (2G/3G), srsRAN (4G/5G), and Open5GS
• ▸Conduct vulnerability testing, risk analysis, and system hardening aligned with ISO 27001 and NIST frameworks
• ▸Develop Python scripts to automate security monitoring, log analysis, and penetration-testing tasks
• ▸Use Splunk (SIEM), Snort (IDS/IPS), and Suricata for continuous monitoring and threat correlation

📍 Mekelle, Tigray, Ethiopia

Provided technical support and security solutions for internal teams and clients, resolving software and hardware issues while implementing secure systems.

• ▸Conducted vulnerability assessments, risk identification, risk analysis, and risk mitigation
• ▸Supported end-users with hardware and software troubleshooting, resolving issues with desktops, laptops, and network peripherals
• ▸Established user accounts with proper access controls and assisted with password reset procedures
• ▸Maintained procedures and reports documenting technical issues and resolutions for the organization
• ▸Analyzed system logs and records to identify underlying trends and potential issues
• ▸Strengthened both the company's network security and the security of the software we developed

📍 Mekelle, Tigray, Ethiopia

Engineered secure database workflows and implemented advanced security measures for the Database Activities and Data Processing departments at Tesfay Mehari.

• ▸Engineered secure database workflows for storage, retrieval, and processing to ensure resilience and efficiency
• ▸Implemented advanced encryption protocols and role-based access controls to safeguard sensitive data assets
• ▸Conducted comprehensive vulnerability assessments of database systems and delivered actionable mitigation strategies
• ▸Established continuous monitoring mechanisms to guarantee data integrity, reliability, and compliance with standards
• ▸Successfully integrated security measures into core database operations and collaborated with technical teams

📍 Mekelle, Tigray, Ethiopia

Designed and deployed a multi‑node Proxmox Virtual Environment (PVE) lab to simulate enterprise‑grade virtualization, clustering, storage, and high‑availability operations.

• ▸Built a production-like 3-node Proxmox cluster with Ceph distributed storage and implemented HA failover mechanisms
• ▸Configured advanced networking including Linux bridges, static IPs, and VLAN segmentation for isolated traffic
• ▸Managed full VM lifecycle for Linux (Ubuntu, CentOS) and Windows using cloud-init for automated provisioning
• ▸Implemented backup and disaster recovery workflows using Proxmox Backup Server (PBS) with scheduled snapshots
• ▸Produced comprehensive High-Level (HLD) and Low-Level (LLD) design documentation

📍 Remote

Collaborated closely with the CEO as a Security Engineer at Kaldas Technologies, focusing on vulnerability scanning, exploitation, and security testing to improve the organization's security posture.

• ▸Conducted vulnerability scanning, exploitation, and security testing of systems
• ▸Provided clear, actionable recommendations that improved the security posture of the organization
• ▸Demonstrated strong technical knowledge and a solid understanding of cybersecurity principles
• ▸Recognized for precise and careful work, dedication, and a positive attitude towards continuous learning

📍 Mekelle, Tigray, Ethiopia

Provided technical support for Luna HealthCare System software used in Aman Hospital, troubleshooting issues and training end-users.

• ▸Maintained and upgraded Luna HealthCare System software used in Aman Hospital
• ▸Troubleshot and resolved software and hardware issues reported by hospital staff
• ▸Walked end-users through steps to help them resolve technical problems with the healthcare system
• ▸Established user accounts for hospital staff and assisted with password/login problems
• ▸Automated backup and performance-monitoring routines using Python scripting
• ▸Implemented server-side optimisations and database improvements for system stability
• ▸Ensured secure API communication using Node.js, Express.js, and MongoDB
• ▸Maintained support documentation and procedures for the entire IT team

📍 Mekelle, Tigray, Ethiopia

Provided technical support for internal teams and clients, resolving access issues and developing support documentation.

• ▸Designed and developed RESTful APIs and back-end modules for web applications
• ▸Established user accounts, managed access controls, and resolved login/authentication issues
• ▸Implemented user authentication, access control, and data encryption features
• ▸Assisted colleagues with technical issues and walked them through resolution steps
• ▸Assisted in automating system testing and debugging processes using Python scripts
• ▸Maintained technical documentation and support procedures
• ▸Collaborated with frontend team to integrate secure backend services

📍 Mekelle, Tigray, Ethiopia

Provided IT support and consultancy for clients in telecom and software development sectors, resolving technical issues and implementing solutions.

• ▸Resolved client technical problems related to network connectivity, software deployment, and hardware configuration
• ▸Developed automation scripts in Python for vulnerability scanning and compliance reporting
• ▸Conducted penetration testing, risk assessments, and mitigation planning based on international standards
• ▸Supported small businesses in adopting secure software deployment practices
• ▸Documented technical support procedures and maintained issue resolution reports
• ▸Analyzed system logs and records to identify trends and prevent recurring issues
• ▸Assisted clients with account setup, password recovery, and access management
• ▸Advised clients on ISO 27001, NIST, and PCI DSS compliance frameworks