Khalid Rehan Email & Phone Number

Cairo, Egypt

As a Senior Observability Engineer, I am responsible for implementing, and maintaining the observability infrastructure to ensure optimal performance, availability, and reliability of critical systems. My role involves collaborating with development, operations, and security teams to establish best practices for monitoring, logging, and alerting across the organization's infrastructure.Key Responsibilities: Infrastructure Management: Manage and maintain observability platforms such as Cisco Appdynamics, Grafana, or SIEM tools, ensuring they are optimized for performance and scalability. Data Analysis and Visualization: Create and maintain dashboards and reports that provide real-time insights into system performance, resource utilization, and potential bottlenecks. Incident Response: Lead the troubleshooting and resolution of production issues by leveraging observability data to quickly identify and address root causes. Collaboration: Work closely with cross-functional teams to define observability requirements and ensure that applications and services are built with observability in mind. Automation: Automate the collection and analysis of metrics, logs, and traces to enable proactive monitoring and alerting. Continuous Improvement: Stay up to date with the latest observability technologies and practices, continuously improving observability strategies and implementations.

Riyadh, Riyadh, Saudi Arabia

Cisco AppDynamics Consultant EngineerAs a Cisco AppDynamics Consultant Engineer, I specialize in application performance management (APM) solutions, helping organizations optimize their IT operations and ensure seamless user experiences. My role involves:Deployment and Configuration: Leading the deployment, configuration, and maintenance of AppDynamics APM solutions across various platforms to ensure optimal performance and reliability.Monitoring and Troubleshooting: Conducting thorough monitoring and troubleshooting of applications to identify and resolve performance issues swiftly.Customer Engagement: Collaborating closely with clients to understand their requirements, provide technical support, and deliver tailored APM solutions.Performance Tuning: Implementing performance tuning strategies to enhance application performance, reliability, and scalability.Integration: Facilitating the integration of AppDynamics with other enterprise systems and tools to provide comprehensive monitoring and analytics.Training and Support: Providing training sessions and documentation to empower clients with the knowledge to effectively use AppDynamics tools.Reporting: Generating detailed reports on application performance metrics and providing insights to help clients make informed decisions.My expertise lies in ensuring that mission-critical applications run smoothly, delivering value through robust performance management and proactive issue resolution.

Cypress, Texas, United States

My role as an Information System Engineer revolved around core activities of monitoring, other teams' support, investigation, and troubleshooting. Work responsibilities and duties:  Installation and Configuration: Proficiently installed, configured, monitored, and troubleshooted various services, including Mail Service, Penetration Testing, DNS server, and VPN. This encompassed a comprehensive setup from scratch, spanning multiple platforms, and ensured seamless functionality as our user base and requirements expanded. Monitoring and Troubleshooting: Diligently conducted basic monitoring, troubleshooting, and repair activities across all aspects of servers, operating systems, and hardware components. This proactive approach ensured minimal disruptions and optimal performance. Routine Maintenance: Executed routine maintenance tasks within our server environment, guaranteeing its stability and reliability over time. Active Monitoring: Maintained active vigilance over all servers, swiftly identifying and addressing potential issues to preempt disruptions and ensure uninterrupted services.This simplified breakdown underscores my core responsibilities and achievements as an Information Systems Engineer. My role was marked by a dedication to ensuring system integrity, excellent system support, and proactive maintenance of our server infrastructure, all of which contributed to the seamless operation of critical IT services.

Cypress, Texas, United States

Information Sytems Engineer Probation:As an Information Systems Engineer during the probationary/training period, I was a part of a dedicated team responsible for designing, implementing, and maintaining our information systems infrastructure. My role was critical in ensuring the reliability, security, and optimal performance of our IT environment.Key Responsibilities:Collaborate with senior team members to learn and understand our IT systems, infrastructure, and processes.Assist in the setup, maintenance, and support of end-user computers, phones, and peripherals.Participate in troubleshooting efforts, investigating and resolving system issues.Learn to configure and optimize web servers such as Apache and Nginx.Gain proficiency in supporting WordPress-based websites, ensuring security and performance.Assist in the administration of MariaDB databases, including basic tasks like installation and configuration.Contribute to the implementation of monitoring solutions to proactively identify and address system issues.Work closely with the team to enhance system security by implementing best practices, security patches, and access controls.Create and maintain system documentation, following established procedures and guidelines.

Cairo, Egypt

CyberX is a Saudi company that specialized in "Arabic Cybersecurity Awareness".We believe that without developing cybersecurity knowledge, your company is still at risk of cyber attacks that are caused by human error.We - at CyberX - can support you through your journey to enhance the employees' Cybersecurity knowledge with our tools:• PhishX• LMSXResponsible for platform engagement.

Riyadh, Saudi Arabia

MVision Services (SA): mvsrvs.comAppDynamics Certified Implementer Professional [ADIP]- Implementing Appdynamics Controller, EUM, and Create basic dashboards to reflect the application health.Cybersecurity Threat Intelligence: (MISP, OpenCTI, TheHive, Cortex), and make the needed integration between them to get the most benefit side by side with the SIEM.

Riyadh, Saudia Arabia

Monitoring, End-user support, Investigating, and troubleshooting are the main activity. I have a great experience in Microsoft Platform and VMware including hands-on experience and expertise with Windows Server, Exchange Server, and server virtualization, responding to troubleshoot cases and other daily routines. Installing and maintaining operating system and system software for data center and end-user.Work responsibilities and duties: “Information Technology Infrastructure Engineer” Installs, configures, Monitors, and troubleshoots services of Domain Controller, Mail Service, Antivirus Manager, web filtering, DNS server, and proxy, all from scratch spanning several different platforms and maintain servers as our users and needs grow. Performs basic monitoring, troubleshooting and repair of all aspects of servers, operating systems and hardware. End-User Support for all services. Performs routine maintenance activities on our servers’ environment. Active monitoring of all servers.

Level 3 Support.Responsibilities:- Use a ConnectWise ticketing system to identify, document and complete proactive work for clients.- Interact with client machines via a Kaseya management system.- Identify unnecessary files, folders, applications and services on machines, uninstalling or removing them as needed to improve performance and free hard drive space- Proactively examine client machines and client networks to ensure all operating system and software updates are installed in accordance with automated software procedures- Complete other technical tickets as assigned by the Chicago office team, in a timely fashion, including calling clients as needed and processing messages received from our answering service.- Accurately logging information regarding work completed into a ConnectWise ticketing system and ODesk.- Assist with documenting technical policies and procedures for other technicians and for company service manuals.- Future opportunity to interact directly with Jexet customers by phone and email after hours.- Other tasks as directed by management.

Egypt, Giza

Monitoring, Investigating, and troubleshooting are the main activity. I have a great experience in the cloud/host based Windows Server environment including hands-on experience and expertise with Windows and Linux / Unix Server architecture, design, and server virtualization, responding to trouble shoot tickets and other daily routines. Installing and maintaining operating system and system software.Work responsibilities and duties: Install, Builds, upgrades, configures, provisions and installs servers from scratch spanning several different platforms and maintain servers as our customers grow. Performs basic monitoring, troubleshooting and repair of all aspects of servers, operating systems and hardware. Responds to customer impacting events. Upgrades and downgrades servers. Removes hardware from server environments. Monitors all Electrical, Mechanical and Emergency Generator systems and reports issues as appropriate as long as the Facility technician is away. Performs routine maintenance activities on customer server environments. Assists in the planning of server environments. Participate in analyzing and summarizing Data Center technology and critical services engineering agreements Collaborate with other teams to ensure technology solutions and business needs align Contribute to web site design and maintenance for Vendor Management team Support internal and external team communication plans, for instance coordinating status reporting across the team, planning team building activities, etc. Notify critical events to customers, MD's, service owners, Call Center, and (NOC) Network Operation center. Respond, action and resolve requests / faults logged both internally and externally, and escalation of problems and issues to the Operations Team. Report broken servers. Active monitoring of all servers. Work with Customer Operation Engineers in configuring customer requirements. Work closely with 3rd party service providers.

Egypt

Working as System/Network Admin for KTAIT.Work responsibilities and duties:• Deal with workstations’ and servers’ OS and working performance.• Working on Virtual environment using VMware.• Creating Domains using Microsoft Servers.• Add Unix-Like systems to a Microsoft AD.• Working on Microsoft Exchange Server.

Telecommuting

Windows System Administrator.Linux AdministratorVMware Server Administrator

Freelancer

Installing VMware Server ESXi..Installing Windows Server 2008 R2 x64 VM's..