.Net Technical Lead/ Architect (Hanoi)

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

Principal IT Architect

Ho Chi Minh - Viet Nam

Outsource

Create target architecture, architecture principles, and technical guardrails for systems, platforms, and integrations Translate strategic objectives into specific technical initiatives and prioritize based on business value and risk Assess new technologies, platforms, and tools including their benefits, risks, costs, and strategic fit Develop solutions adhering to modern architecture principles such as cloud-native, Zero Trust, and automation Develop integration and platform strategies with consistent interfaces, API usage, and system integration Organize complex requirements into technical work packages and document solution designs Lead teams through critical implementation phases and make sound technical decisions Review architectures, designs, and implementations for consistency, quality, and strategic alignment Identify technical risks and develop mitigation measures Ensure comprehensive, clear, and updated documentation of systems and solutions Take technical lead on major incidents and structural problems Provide support for local IT administration tasks as needed Mentor senior and mid-level engineers, supporting individual growth and technical expertise Share best practices and experiential knowledge in a structured manner Identify skill gaps and initiate appropriate development measures Actively introduce and model modern technologies and ways of working Identify automation opportunities and implement them through scripting, workflows, or platform solutions Evaluate and integrate AI-powered tools to enhance efficiency and decision quality Promote AI competence within the team Evaluate technical solutions from an economic perspective: TCO, ROI, scaling costs, vendor lock-in Develop structured option comparisons and decision materials for leadership Identify cost savings through tool consolidation, decommissioning unused services, and cloud optimization

Negotiation

(JTL) Cloud Architect

Ho Chi Minh - Viet Nam

Outsource

• Devops
• Azure

Defining and evolving the target architecture for Azure, including design, network, identity concepts, and Azure Landing Zones Implementing Adoption Framework and Well-Architected Framework Establishing IaC standards with Terraform, designing GitOps and CI/CD architectures, and enabling development teams through self-service platform approaches Integrating security-by-design and compliance requirements from the start, covering IAM, network segmentation, and secrets management, and supporting audits and security reviews together with InfoSec and Compliance Planning and accompanying migrations from on-premise or legacy systems into Azure, evaluating workloads for cloud-readiness, and applying cost-by-design principles to keep cloud spend transparent and efficient Reviewing and evaluating existing and new cloud concepts, contributing to architecture governance, creating and maintaining architecture documentation, and actively transferring knowledge to teams and stakeholders

Negotiation