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Roland Klahitar

Cyber Security

Technical Skills

Open Source Intelligence Cryptography Password Cracking Log Analysis Network Traffic Analysis Forensics Scannning & Reconnaissance

Education

Cyber Security Fall 2023 – Current Associate of Science in Computer Science Summer 2018 – Summer 2022 Houston Community College Language and Culture Center (LCC) Fall 2016 – Spring 2018 University of Houston – Houston, TX Analyst Programmer October 2006 – August 2009 African Institute of Computer Science – Libreville, Gabon

Work Experience

Data Analyst @ IBM May 2011-March 2016 International Business Machines (IBM) – Ndjamena, Chad • Extract, transform and load Call Detail Record generated by nodes: Charging Control, Mobile Switching Center Server, Service Delivery Platform, Adjustment Server, Charging Data Record • Designed and implemented Data Warehouse, cubes, Dataflow, decisional and operating reports about revenue, minutes of use, data volume uploaded/downloaded, Value Added Service, recharges, new acquisition, reconnection and churns with Microsoft Analytic Services, Microsoft Integration Services, Microsoft Reporting Services, and IBM Cognos. • Analysis logs generated during the transformation and loading process and corrected errors. • Analyzed and explain any change (increasing or decreasing of measures) accurate in the trend of different reports • Elaborated with sales and marketing directions the new product business case

Skills

• Create and modify User Accounts and Group on Linux.
• Create a Repository and Manage Software Packages using APT, DNF, YUM, ZYPPER, DPKG, and RPM tools.
• Design, configure, and troubleshoot routes, VLAN, DHCP, and NTP running under Linux. 
• Configure SSH and VNC remote access.
• Configure Apache Web server supporting IP-based Virtual Host, Name-based Virtual Host, and SSL encryption.
• Configure a Postfix email and Dovecot IMAP servers.
• Configure NFS server, Samba server, and Squid proxy cache in Linux.
• Configure firewall using iptables, firewalld and firewall-cmd programs. 
• Create Containers using LXC/LXD.  
• Monitor Processes in Linux using ps, top, nice, renice, cron, and sleep commands.
• Manage Disk and Filesystem using LVM in Linux
• Proficient in Git for version Control.
• Proficient Auto Layout and Responsive Design in XCode to produce adaptative interfaces.
• Use Segues and Navigation for Multi-Screen Apps. 
• Proficient in Model View Control design pattern, JSON parsing, Core Data, Core Location, API Integration, Networking, SQLite, and UITableView.
• Programming Languages: Swift, SwiftUI, Shell script, Transact SQL, PL SQL, Python, PHP, JavaScript, HTML, CSS

Cyber Security

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