Senior Backend Developer - Cybersecurity

Viettel Cyber Security (VCS) is a leading cybersecurity company specializing in the research, development, and deployment of advanced security products and solutions for large enterprises worldwide.

VCS is the Champion of Pwn2Own 2023 & 2024, with proven top-tier offensive and defensive capabilities, having discovered 400+ zero-day vulnerabilities across major platforms such as Microsoft, Oracle, and Jenkins.

Our products and services have received multiple prestigious international cybersecurity awards, reinforcing VCS’s strong position in Asia and the global market.

1.Responsibilities

– Research and develop software products in the field of Cybersecurity (implementing monitoring and attack detection; managing IS for organizations/enterprises)

– Work with the software development team to receive, analyze, and create new designs/architectures aimed at scale and performance

– Implement performance-oriented architectural optimizations for large systems

– Research and apply new technologies in product development (microservices, cloud-native, CI/CD)

– Work according to the Agile-Scrum model

– Opportunity to participate in solving new and complex problems such as: Scalable, High-performance, Real-time Processing…

2.Qualifications

– At least 3 years of Backend development experience

– Deep knowledge of Golang, Python, NodeJS, Java, C#, or other equivalent BE languages

– Knowledge of OOP, Microservices, Design Patterns, and system design

– Experience in system optimization or participation in large-scale projects with a significant user base. Familiarity with Database technologies (SQL, NoSQL), Redis, Message Queues (Kafka, RabbitMQ), and DevOps tools (Docker, Docker Compose, K8s)

– Ability to write clean & maintainable code, focusing on performance, reusability, and understandability with unit tests

– Clear orientation, willingness to learn new things, and passion for the product

– Good logical thinking and problem-solving skills, quick to grasp new technologies

– Basic understanding of the customers being served

– Bachelor’s degree in: Information Security; Information Technology, Computer Science, Mathematics-Informatics…

• Bonus Points

– Knowledge and experience in secure programming. Knowledge of network and network protocols

– Proficient in using tools for CI/CD deployment

– Experience solving one of the following problems, including but not limited to: performance optimization, large system design, big data processing, algorithms, scaling, complex technical issues

– Understanding of database indexing mechanisms, experience solving analysis and query optimization problems

– Collaboration skills, ability to work cross-functionally to achieve the best common results

3. Benefits & perks

– Competitive annual compensation with annual salary review

– Opportunities to work with domestic and international clients on complex, large-scale cybersecurity challenges

– Comprehensive health & personal accident insurance (up to 600 million VND/year) and annual health check-up

– Full sponsorship for international professional certifications (50% support for re-attempts) plus certification bonuses

– Company-wide Udemy eLearning access for continuous learning

– Regular technical seminars and knowledge-sharing sessions with leading local and global experts

– Grade A office at Landmark 72, featuring gym and recreational facilities

– Daily 30-minute Happy Hour for relaxation

– 15 days of paid leave per year (12 statutory + 3 company holidays)

– Team-building activities, company events, and employee celebrations

Address: Landmark 72 building, Pham Hung Street, Hanoi

Working time: 9 A.M. - 6:30 P.M.