Senior/ Lead Mobile Security

Senior Backend Engineer (Shop 6.0)

Ho Chi Minh - Viet Nam

Outsource

Design and develop the backend services for the core areas of Shop 6.0 (catalog, orders, payments, ERP Cloud integration) Define API boundaries and ensure consistent, scalable communication between services Own reliable data synchronization between the ERP Cloud and the platform, including error handling and recovery mechanisms Optimize systems for performance and scalability (caching, asynchronous processing, read/write optimization) Establish observability standards (logging, monitoring, alerting) across all backend services Conduct code reviews, promote best practices, and support less experienced team members

Negotiation

Senior Tech Lead (Shop 6.0)

Ho Chi Minh - Viet Nam

Outsource

Take on overall technical and organizational responsibility for delivering Shop 6.0 across frontend, backend, and infrastructure Plan delivery scope, milestones, and releases, and coordinate the work of parallel workstreams (frontend, backend, DevOps, QA) Make and facilitate key architectural decisions together with the senior engineers, particularly around microservices, APIs, and cloud-native implementation on Azure Identify and manage risks related to integration (especially the ERP Cloud connection), scalability, and technical dependencies Serve as the central point of contact for stakeholders on scope, prioritization, and timelines Ensure code quality through reviews, mentoring, and clear standards, including a pull request process with mandatory checks and senior/lead review Ensure transparency on progress, risks, and decisions towards the team and management

Negotiation

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