Senior Fullstack .NET ReactJS

October 29, 2025

Closed

up to 50 mils VND (NET)

Location

Vietnam

Occupation

Full-time

Experience level

Senior

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Job Summary

Công việc này dành cho các kỹ sư phần mềm cấp cao làm việc từ xa tại Việt Nam, hợp đồng 3-6 tháng, lương cạnh tranh lên đến 50 triệu VND NET với thuế TNCN được công ty chi trả. Bạn sẽ tập trung bảo trì, phát triển tính năng trên hệ thống CRM bằng .NET/C# và AWS, đồng thời luân phiên hỗ trợ hệ thống sau giờ làm, cuối tuần.

Ứng viên phù hợp cần có tối thiểu 5 năm kinh nghiệm .NET, thành thạo ASP.NET Web API, AWS Lambda, SQL, kỹ năng sử dụng Docker, Terraform, giao tiếp tiếng Anh tốt. Ưu tiên ứng viên chủ động, tư duy giải quyết vấn đề xuất sắc, thích ứng linh hoạt và sẵn sàng làm thêm giờ theo ca.

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Title: Senior Fullstack .NET ReactJS

Company: freeC - Job posting (Client's job)

Company description: freeC - Job posting (Client's job) · Vietnam (Remote)

Salary: up to 50 mils VND (NET) Contract 3-6 months

Job Description

Software Development (Approx. 80%):

Maintain and enhance existing features and functionalities within the client’s CRM system.

Design, develop, test, and deploy software solutions using the .NET/C# stack and AWS services.

Focus on delivering high-quality, efficient, and robust code to meet defined business requirements.

Participate in code reviews and contribute to the team's technical standards and best practices.

System Support & On-Call (Approx. 20%):

Actively participate in the team's rotation for after-hours and weekend support coverage to reduce the burden on the client's US-based team. This includes evening shifts (e.g., M-F 2 PM - 9 PM Eastern time / with some overlap with VN core hours) and weekend coverage (with overtime pay, rate to be confirmed).

Monitor the system and quickly troubleshoot and resolve urgent production issues and incidents.

Demonstrate high responsiveness and proactivity in addressing urgent client requests and technical challenges.

Occasionally join evening calls with the US client for coordination and issue resolution.

Collaboration & Communication:

Collaborate effectively with cross-functional and geographically dispersed teams.

Build and leverage relationships with client-side contacts to facilitate effective technical resolution and project execution.

Clearly communicate technical concepts and solutions, both written and verbally, in English.

Required Technical Skills

Candidates must be technically strong with exceptional problem-solving abilities across the full stack:

Core .NET: Strong proficiency in .NET (Web) development and C# (5+ years)

API Development: Expertise with ASP.NET Web API.

Cloud & Infrastructure (AWS): Hands-on experience with AWS Lambdas and a solid understanding of cloud-native development.

Databases: Proficiency in SQL, including experience with PostgreSQL and SQL Server.
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