Principal Fullstack (.NET/JS) Software Engineer

Requirements

• Proficient daily use of AI coding tools (Copilot, Cursor, Claude Code) across the full SDLC
• Able to decompose complex tasks, provide effective context, and apply chain-of-thought and multi-step prompting workflows
• Experience with agentic workflows and AI-driven development frameworks
• Hands-on experience integrating AI tools with other systems via MCP (Model Context Protocol) or equivalent
• Awareness of emerging AI tools and willingness to evaluate and adopt new capabilities
• Perks You'll Enjoy
• Working in one of the Best Places to Work in Vietnam
• Building large-scale & global software products
• Working & growing with Passionate & Talented Team
• Diverse careers opportunities with Software Services, Software Product Development, IT Solutions & Consulting
• Attractive Salary and Benefits
• Performance appraisals every year and performance bonus
• Onsite opportunities: short-term and long-term assignments in North American (U.S, Canada), Europe, Asia.
• Flexible working time
• Various training on hot-trend technologies, best practices and soft skills
• Premium healthcare insurance for you and your loved ones
• Company trip, big annual year-end party every year, team building, etc.
• Fitness & sport activities: football, tennis, table-tennis, badminton, yoga, swimming...
• Joining community development activities: 1% Pledge, charity every quarter, blood donation, public seminars, career orientation talks,...
• Free in-house entertainment facilities (foosball, ping pong, gym...), coffee, and snack (instant noodles, cookies, candies...)
• And much more, join us and let yourself explore other fantastic things!

Benefits

Additional Information

Perform hands-on coding and code review as other peer developers as needed Understand the requirements of the customer or business and utilize this knowledge to develop applications that are consistent with this; Design, develop, review, implement, maintain and manage continuous integration, build management and deployment scripts, systems, and any code as required; Participate in Agile/Scrum activities: daily standup, demo session, retrospective, estimate, and planning, etc Provide mentoring/training for junior members if any Perform other tasks assigned by the Line Manager. General requirements: Likely having 7+ years of experience depending on how fast of your learning and developing technical capability Ability to obtain a deep knowledge of the project technologies and work independently with minimum guidance Ability to self-learn and adapt to new technologies quickly At least intermediate level of English level Technical requirements: Strong proficiency with backend C#, ASP.NET Web Forms, .NET 4.7 and the .NET framework. Hand-on experience with front-end technologies including JavaScript , HTML5, and CSS3. Experience with RESTful API design and integration. Familiarity with relational databases like SQL Server, and experience with ORM frameworks such as Entity Framework. Good knowledge or experience of using IoC container Strong experience with object-oriented (OO) designs and design patterns Familiar with DevOps techniques (CI/CD pipelines, Infrastructure as Code (IaC) tools, containerization and orchestration, etc.) Experience in microservices and cloud environments (Azure/AWS/GCP) Performs effectively & independently in software implementation activities (designing, coding, verification, unit testing, integration testing, and debugging...)

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