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in Vietnam

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Tatsuya Y.

Ho Chi Minh City, Vietnam

$30/hr
4.9
7 jobs

IT Infrastructure Manager with over 10 years of experience in IT system support and implementation. Summary: Experienced IT Infrastructure Specialist with a strong background in managing and implementing complex IT systems and projects. Adept at network design and configuration, server management, and technical support. Skilled in utilizing various technologies such as Cisco IOS, Windows Server, and Microsoft Azure to enhance network reliability and security. WordPress administrator. Committed to delivering efficient solutions that improve workflow and reduce workload. Technical Expertise: Operating Systems: Windows 7, 8, 10, Windows Server 2012R2, Windows 2016, 2019 Cisco IOS: CLI configuration, Cisco ASDM Other Technologies: Zscaler, Office 365, Hyper-V, ADCS, GPO, WDS, MDT, WSUS, Printing, Microsoft Azure, Microsoft Intune, SSL certificate, Nagios monitoring, Cisco Meraki network equipment, PowerShell, WordPress Accomplishments: - Designed and implemented a highly available corporate network with a backup router at HQ, saving on hardware costs - Reduced workload and improved security by 25 hours per quarter through the implementation of an automated patch management solution for servers - Coordinated and executed successful Japan branch office relocations with a fully wireless setup, including network design and configuration - Improved access availability by setting up a backup IPsec VPN into Azure Vnet for critical business applications - Reduced running costs by 80% by migrating existing IP-VPN to a new ISP's IP-VPN solution with a backup IPsec VPN - Provided a secure "Work From Home" solution by designing, planning and implementing a certificate-based authentication and LDAPS authentication in Cisco AnyConnect VPN - Established a new branch office, including network design, router configuration, and site-to-site VPN setup - Improved identity and access management by implementing Azure SSO, Conditional Access, - - Hybrid Azure AD join and MFA for business applications - Installed and maintained an OS imaging server infrastructure for over 500 Windows computers Experience: - Managed servers, company network, voice, and video conference systems for a 500-employee company, including APAC offices - Contributed to IT projects such as branch office relocation and new office opening as the point of contact for the Infrastructure team - Improved network stability and reliability by designing and configuring simple failover logic and QoS on Cisco and Meraki firewalls - Provided technical support - Created system documentation

  • Internet Protocol Security
  • Vulnerability Assessment
  • Microsoft Azure
  • Office 365
  • DNS
  • Network Security
  • Cisco WLC
  • Cisco ASA
  • Cisco Meraki
  • VPN
  • Windows Administration
  • Cisco Certified Network Associate
  • Microsoft Hyper-V Server
Hoang Nhan L.

Ho Chi Minh City, Vietnam

$25/hr
5.0
190 jobs

✅ As a CREST/Offensive Security (OSCP) Certified Penetration Tester and Cyber Security Consultant, I have deep knowledge of Security Assessment Methodology to identify vulnerabilities in Network, API, Web, and Mobile Applications. ✅ I have conducted Penetration Test, Vulnerability Assessment and delivered professional reports to companies in the world complying with: ► CREST standards ► Offensive Security (OSCP) standards ► OWASP Top 10 Vulnerability ► OWASP API Security Top 10 Vulnerability ► OWASP Mobile Security Top 10 Vulnerability ► Application Security Verification Standard 4.0 (ASVS 4.0) ► CWE Top 25 Most Dangerous Software Errors ► ISO 27001 Penetration Testing ► Payment Card Industry Data Security Standard (PCI DSS) ► General Data Protection Regulation (GDPR) ► Common Vulnerability Scoring System (CVSS) ► Open Source Security Testing Methodology Manual (OSSTMM) ✅ I have some cybersecurity certifications including: ► CREST Registered Penetration Tester (CRT) ► CREST Practitioner Security Analyst (CPSA) ► Offensive Security Certified Professional (OSCP) ✅ The deliverable will be a professional Penetration Testing/Vulnerability Assessment report which includes: ► Executive Summary ► Assessment Methodology ► Type of Tests ► Risk Level Classifications ► Result Summary ► Table of Findings ► Detailed Findings. Each finding listed within the report will contain CVSS score, Issue Description, Proof of Concept, Remediation, and Reference sections. ► Tool List (Acunetix, Nessus, BurpSuite Professional, Nmap, Netsparker, Metasploit Framework, OpenVAS, Mimikatz, SQLmap, Nikto, Zaproxy, Gobuster, etc.) ✅ Please contact me if you have any question. ✅ Thank you and have a good day!

  • Penetration Testing
  • Vulnerability Assessment
  • Web App Penetration Testing
  • Website Security
  • Security Testing
  • System Security
  • Information Security
  • Network Penetration Testing
  • Black Box Testing
  • OWASP
  • White Box Testing
  • Software Testing
  • Security Analysis
Thanh T.

Ho Chi Minh City, Vietnam

$25/hr
5.0
9 jobs

i am working as cyber security consultant in company in Vietnam , i have 9 years of experience in security solution architecture and penetration tester and network security and cloud infrastructure .

  • Penetration Testing
  • Software
  • Ethical Hacking
  • Server & Virtualization Software
  • VPN
  • Server Administration
  • Computer Engineering
  • Linux System Administration
  • Windows 11 Administration
  • Cloud Computing
  • Network Security
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