Life at Viettel Cyber Security
RedTeam
Skills
3 months ago
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Important information
Contract type:
Permanent
Location:
Hanoi, Vietnam
Work mode:
Onsite
Published on:
7 August 2026
What they need
POSTED AT 19/04/2025 18:21:57
RedTeam
Department
Trung tâm Dịch vụ An Toàn Thông Tin
Location
Hanoi
Employment type
Full-time
Work experience
Experienced, Senior
End date
Application until 31/12/2026
Security
Overview Viettel Cyber Security One Member Limited Liability Company (VCS) focuses on the implementation, research, and in-depth development of information security products and solutions, while also providing cybersecurity (CS) products and services to large domestic and international organizations and enterprises.
Some Notable Achievements Of VCS
- The Champion of Pwn2Own 2023 & 2024. Previously, VCS consistently ranked in the Top Five positions at Pwn2Own Tokyo 2020, Vancouver 2021, and Toronto 2022.
- In addition to Pwn2Own, VCS has consistently made its mark and topped numerous prestigious cybersecurity attack rankings and competitions worldwide, including those held by Microsoft, Bugcrowd, Google, Oracle, and others.
- VCS has exploited over 400 Zero-day security vulnerabilities on major platforms and systems of Microsoft, Oracle, Jenkins, and others.
- Received 11 awards at the Cybersecurity Excellence Awards 2023, surpassing more than 800 nominations from leading global cybersecurity solution providers.
- Global InfoSec Awards 2023 (Cyber Defense Magazine)
- IT World Awards 2023: https://globeeawards.com/technology/winners/
- Viettel Cyber Security excelled in achieving the Gold award in the Best Cyber Security Company in Asia category for 2023.
- 07 Gold awards for products: Network Security Monitoring Solution (VCS-CyM), Abnormal Behavior Analysis Solution (VCS-KIAN), Network Security Orchestration, Automation and Response Solution (VCS-CyCir), Endpoint Anomaly Detection Solution (VCS-aJiant), Secure Remote Working Solution for Enterprises (VCS M-Suite); Cyber Threat Intelligence Solution (VCS-Threat Intelligence); Network Security Vulnerability Management and Control Solution (VCS-V2S).
- 03 Gold award for services: Managed Security Services (MSS), Penetration Testing Service (Pentest), IoT Security Assessment Service.
About the Department: The VCS Information Security Service Center is a unit providing end-to-end next-generation information security services from the system to the application layer, such as: In-depth Research, Infrastructure Audit; IoT Audit; Red Team; Pentest… This department gathers outstanding individuals who have been recognized in global security expert rankings. The unit is currently seeking a Red Team Specialist.
Responsibilities
- Job Description:
– Conduct security assessments of large, complex, or multi-platform applications
– Develop security guidelines by understanding platforms, technologies, and available documentation from manufacturers
– Provide cybersecurity training (awareness, programming, secure configuration) to customers
– Handle cybersecurity incidents
– Analyze 1-day vulnerabilities and write exploitation payloads
– Research 0-day vulnerabilities, new exploitation techniques, and new technologies, and present findings through company seminars, blogs, and cybersecurity community activities
– Participate in internal or external drills and the Group’s CTFs
Qualifications
- Educational Background:
– Bachelor’s degree in: Information Security; Information Technology, Computer Science, Mathematics-Informatics…
– English proficiency equivalent to TOEIC 650 or higher
- Requirements/Competencies:
– 2-7 years of cybersecurity experience
– Development of highly rated and widely used global security tools, techniques, vulnerabilities, books, and research materials
– Knowledge of secure web application programming
– Thorough understanding of application vulnerabilities and their exploitation techniques
– Knowledge of Crawlers and Fuzzing, with the ability to find 0-day application vulnerabilities
– Knowledge of bypass techniques and anti-bypass methods
– Ability to deeply exploit large systems and perform lateral movement across multiple systems
– World-class outstanding professional achievements
– In-depth understanding of IT in areas such as: programming languages, operating systems, protocols, networking, and encryption algorithms
- Softskill
– Good communication and presentation skills
– Analytical and problem-solving mindset
– Good teamwork skills
– Work and time management skills
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
- Working in a Grade A office – Landmark 72 building 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)
- Sports activities: Football, Billiards, Poker, PES clubs, etc
- 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
APPLICATION FORM
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Agree to Personal Data Protection Policy In accordance with the provisions of the Law on Protection of Personal Data No. 91/2025/QH15 dated June 26, 2025, by checking the boxes below, the Candidate confirms that they have read, understood, and agree to allow Viettel Cyber Security One Member Limited Liability Company (VCS) to process their personal data for each specific purpose stated below. If the Candidate does not agree, we regret that we cannot process the application. The Candidate may withdraw their consent at any time through Customer Service channels, including the hotline +84 382 360 360 or email [email protected].
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