Head of Technical Services

Lead Penetration Tester

Ho Chi Minh, Ha Noi - Viet Nam

Outsource

• Security

Conduct authorized penetration testing for various digital platforms, including web applications, mobile applications, APIs, infrastructure, and cloud environments. Identify and document security vulnerabilities, validate and exploit when necessary, covering areas such as authentication, authorization, session management, input validation, encryption, access control, and business logic issues. Perform security assessments according to industry standards (e.g. OWASP Top 10, OWASP API Security Top 10, OWASP Mobile Security Testing Guide) and relevant security practices. Analyze application flows, user journeys, transaction processes, access controls, and data handling mechanisms to uncover potential security risks. Conduct vulnerability assessment and manual verification to reduce false positives, confirming actual exploitability in authorized environments. Retest to validate remediation effectiveness and ensure vulnerabilities are properly resolved. Support security testing activities within the software development life cycle (SDLC), including security requirement review, threat analysis, test planning, and release security validation. Stay updated with emerging cyber threats, attack techniques, security risks, and security testing best practices. Lead the planning, scoping, and execution of penetration testing activities across assigned projects. Define the penetration testing approach, test strategy, testing scope, priorities, timelines, and required evidence based on project and client requirements. Guide and mentor penetration testers or security engineers in testing methodology, vulnerability validation, reporting quality, and remediation discussions. Review vulnerability findings, risk ratings, evidence, and remediation recommendations to ensure accuracy, consistency, and practical value. Serve as the main technical point of contact for penetration testing activities, working with client stakeholders, security teams, development teams, DevOps, infrastructure teams, and compliance teams. Facilitate vulnerability walkthroughs, risk clarification sessions, remediation discussions, and retesting alignment with relevant stakeholders. Support estimation, planning, status tracking, issue escalation, and delivery reporting for security testing activities. Contribute to improving security testing processes, reporting templates, testing checklists, knowledge sharing, and reusable testing practices. Support regulatory, audit, and compliance requirements by providing security testing evidence, reports, remediation status, and technical clarification when needed.

Negotiation

Solution Designer (Merchant Services)

Ho Chi Minh - Viet Nam

Product

• Java
• NodeJS

Evaluate business requirements and COM systems to develop high-quality solutions that integrate technical sophistication, security, scalability, and business value. Produce comprehensive design materials, architectural charts, and technical documentation for implementation teams. Utilize systems thinking and design thinking approaches to assess the impact on the COM ecosystem. Execute proof-of-concept projects as needed to validate architectural decisions and mitigate implementation risks. Effectively communicate intricate technical concepts and design choices to a wide range of stakeholders, including technology heads, engineering managers, product owners, tech leads, testing teams, and technology executives. Act as a reliable advisor capable of bridging the gap between business and technical spheres. Advocate for platform-focused principles by creating adaptable and reusable solutions that promote consistency and effectiveness throughout the organization. Offer strategic insight to Technology Leadership on architectural direction, technical debt, and platform development.

Negotiation

Featured Job

Software Engineer (Node.js) - Platform Security

Ho Chi Minh - Viet Nam

Product

• NodeJS

Create system architectures and coding standards for cloud-native solutions. Write high-quality Node.js code, enhance system security and reliability, and solve complex software integration problems. Develop platform security controls for web applications, APIs, and cloud services, covering authentication, authorization, session management, secrets management, encryption, and audit logging. Identify and address security risks through threat modeling, secure code reviews, automated security testing, dependency scanning, and investigation of security-related issues. Manage the testing, deployment, and documentation of integrated systems. Guide junior engineers, collaborate with cross-functional teams, and ensure solutions align with business needs and international standards. Actively participate in Agile software development phases, including creating user stories and sprint planning. Collaborate with multinational organizations, and be flexible to occasionally adapt to US and EU time zones.

Negotiation