Full Stack Developer (.NET React)

Senior Software Engineer (Backend + Network)

Ho Chi Minh - Viet Nam

Product

• Backend
• Network

Continuously monitor and analyze new VPN providers, proxy services, and anonymization tools. Conduct investigations on IP allocation patterns, hosting provider behaviors, and network infrastructure changes. Develop and maintain comprehensive databases of known VPN/proxy IP ranges and behavioral signatures. Research emerging threats such as residential proxies, mobile proxies, and distributed proxy networks. Monitor darkweb marketplaces and security forums for emerging proxy/VPN trends. Perform deep packet analysis and network traffic pattern recognition. Develop and maintain the system using PHP, Python, and/or Go. Optimize VPN/Proxy detection algorithms. Design scalable infrastructure to handle millions of IP lookups per day. Implement monitoring and alerting systems for detection accuracy and system performance. Analyze production incidents related to false positives/negatives in threat detection. Collaborate with DevOps team on deployment of detection rule updates and model improvements. Investigate customer-reported bypass attempts and develop rapid response solutions. Provide technical expertise during customer security consultations. Support sales engineering team with technical demonstrations and proof-of-concepts. Document threat analysis findings and detection methodologies for internal and customer use. Maintain relationships with cybersecurity vendors, threat intelligence providers, and ISPs. Monitor industry threat reports, security advisories, and academic research. Participate in cybersecurity conferences and forums to stay current with the threat landscape. Contribute to open-source security tools and research when appropriate.

Negotiation

Team Lead Engineering (Crew team)

Ho Chi Minh - Viet Nam

Product - Booking Platform

• .NET
• ReactJS
• Azure

Negotiation

Team Lead Engineering (.NET, Azure)

Ho Chi Minh - Viet Nam

Product - Booking Platform

• .NET
• Azure
• Frontend

Manage a team of engineers responsible for the development and maintenance of software products. Communicate with Product Owners and stakeholders to ensure technical input in product planning and development. Work with relevant teams to ensure the best technical solutions for products, especially regarding cloud architecture. Support team members in achieving high performance and excellence in engineering. Train engineers in best practices for software development, including Infrastructure as Code, automated testing, and continuous integration/deployment. Coach engineers in utilizing AI tools for accelerated software delivery. Collaborate with other teams on technical concepts and practices. Engage in the entire development process, from design to launch, providing support and feedback as needed.

Negotiation