Network Security

• Job description for Network Security at Viettel Cyber Security
• Job Description

Operate and monitor infrastructure for Information Security (IS) solutions provided to MASS/SME clients (e.g., WAF, Anti-DDoS). This includes ensuring service stability and security, and handling a full range of infrastructure-related incidents from basic to advanced.

Optimize and upgrade the architectural design of IS solution infrastructure (WAF, Anti-DDoS, etc.) to ensure stability and scalability, meeting the business needs of MASS/SME clients.

Handle DDoS and web attacks, ensuring compliance with client SLAs. This involves analyzing logs and utilizing Anti-DDoS and WAF solutions to defend against attacks.

• Participate in IS incident response drills for clients, specifically those related to web and DDoS attacks.
• Tune and update rules for IS solutions serving MASS/SME clients (e.g., WAF and Anti-DDoS).
• Research technologies and the latest optimization/defense techniques to improve and update solutions.

Continuously update knowledge on new network security and web attack techniques, then develop defense strategies and optimize solutions accordingly.

• Requirements
• 2.1 Qualifications
• Bachelor’s degree or higher in Computer Science, Information Technology, Mathematics-Informatics, or related fields
• English proficiency equivalent to TOEIC 650 or higher

2.2 Requirements/Competencies

• 3+ years of experience in network or network security.
• Knowledge of Linux servers, web servers, and virtualization systems like VMware ESXi, vCenter, or similar.
• Knowledge of monitoring tools such as Grafana, TICK, Prometheus, or equivalent.
• Basic understanding of Cloud Computing, Docker, and Containers.
• Fundamental understanding of common web security risks based on the OWASP Top 10.

In-depth knowledge of DDoS attack types, from Layer 3, Layer 4 to Layer 7. You should regularly research and update new attack techniques to propose solutions that ensure client service availability.

• Understand the concepts and methods for analyzing and monitoring network-level alerts and threats.
• Strong teamwork skills and ability to work well under pressure.
• Good information-gathering skills.

Excellent troubleshooting skills for network and network security issues, including the ability to analyze and handle vulnerabilities in a company’s network system.

• Benefits & perks
• Competitive annual total income package
• Opportunity to work with diverse domestic and international clients
• Annual salary review in March
• MIC health and personal accident insurance (coverage up to 600 million VND/year)
• Annual health check-up
• Awards recognizing performance and timely outstanding contributions

100% sponsorship for in-depth international professional certification based on position (in case of unsuccessful attempt, don’t worry, VCS will support 50% of the exam fee), special bonuses for employees achieving international professional certifications

Continuous investment in the latest and most up-to-date learning materials in the field of Information Security from leading global vendors and institutes

100% of employees are provided with an Udemy eLearning account – learn anytime, anywhere

Free participation in professional knowledge sharing programs and seminars from leading domestic and international speakers 12 days of annual leave according to Labor Law and 3 days of company vacation, traditional holiday on 22/12

Personal birthday celebrations: Gifts and birthday cake from the Company

Participation in company events: Quarterly team building activities, monthly birthday celebrations, Year End Party, vacations, International Women’s Day (March 8th), Vietnamese Women’s Day (October 20th) (female employees recieve ½ day off), Viettel Group birthday on June 1st, etc

Time & Location

Working in a Grade A office – Landmark 72 building (Nam Tu Liem, Ha Noi) with a green space complex and a private area for gym and entertainment (billiards, PES, café, reading, Pingpong)

30-minute relaxation daily with Happy hours (4:00 PM – 4:30 PM)