Teguh Dwi Sumarno

Experience

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  Telkomsel

  Aug 2016 - Nov 2016

  Student Internship

  1. Responsible for improving, maintaining, and supporting all telecommunications services.2. Analyzing and resolve hardware problems for mobile devices.3. Monitored and analyzed system performance, such as network traffic, security, and capacity.

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  PT. INFOMEDIA NUSANTARA

  Dec 2017 - Nov 2021

  Technical Support Engineer - Telkomsel's Project

  1. Quality Assurance and Process Improvement: Reviewed Standard Operating Procedures (SOPs) and implementation processes to ensure accuracy, timely order fulfillment, and adherence to deadlines.2. Technical Support and Troubleshooting: Provided user support by diagnosing and resolving network and device issues using network monitoring tools.3. Requirements Gathering and Analysis: Collaborated with users, administrators, and engineers to identify and document business and technical requirements for system modifications and enhancements.4. Performance Monitoring and Reporting: Monitored and analyzed system performance metrics, such as network traffic, security, and capacity. Prepared detailed reports on system activity and performance.5. Incident Management and Documentation: Documented user support activities, including system problems, corrective actions, resolution status, and completed equipment installations.6. Project Management and Reporting: Reported weekly to the Network Services Leader on project updates, outstanding service issues, and overall project status. Show less

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  CNN Indonesia

  Nov 2021 - Jan 2023

  Information Technology Infrastructure and Security

  1. System Administration: Responsible for the setup, configuration, and maintenance of desktop, laptop, and server systems (Windows and Linux) to ensure optimal performance and security.2. Network Management: Managed and configured network infrastructure, including TCP/IP, DNS, Firewall, DHCP, VPN, and wireless networks (UniFi and Cisco) to provide reliable and secure connectivity.3. Technical Support: Provided timely technical support for users, troubleshooting hardware and software issues, and resolving network connectivity problems.4. Security: Implemented and enforced security policies using McAfee ePolicy Orchestrator to protect sensitive data and mitigate threats.5. Documentation: Developed and maintained comprehensive technical documentation and procedural manuals for knowledge sharing and future reference.6. Automation and Efficiency: Utilized tools like Clonezilla to streamline system deployment and maintenance processes, improving efficiency and reducing downtime. Show less

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  PT. Sigma Cipta Caraka (Telkomsigma)

  Feb 2023 - now

  Cyber Security Analyst

  1. Proactive Threat Detection and Response: Leveraging advanced security tools and techniques to proactively identify and respond to potential threats, such as malware, phishing attacks, and ransomware.2. In-depth Security Incident Investigations: Conducting thorough investigations into security incidents, analyzing logs, and implementing effective incident response plans to minimize damage and prevent future occurrences.3. Vulnerability Management : Conducting regular vulnerability assessments to identify and mitigate security weaknesses, ensuring the organization's security posture remains robust.4. Security Policy and Compliance: Developing, implementing, and maintaining comprehensive security policies and procedures to ensure compliance with industry standards like ISO 27001 and regulatory requirements.5. Security Awareness and Training: Promoting a strong security culture by conducting regular security awareness training sessions for clients, emphasizing best practices and emerging threats.6. Security Engineer: Tuning and Optimizing IBM QRadar to enhance detection accuracy and reduce false positives. Show less