Senior Fullstack Engineer (.NET & Salesforce)

12026-05-20

What You'll Do

Develop and maintain scalable, high-performance web applications using .NET technologies (C#, .NET Core/.NET Framework) across backend services and fullstack systems.
Design and build robust APIs, microservices, and enterprise integrations to support business and product requirements.
Collaborate closely with cross-functional teams, stakeholders, and global clients to deliver technical solutions with high quality and scalability.
Participate in architecture discussions, technical design, code reviews, and continuous improvement initiatives.
Contribute to frontend development and system enhancements using modern web technologies and frameworks.
Support and enhance eCommerce-related features and integrations, including working with Salesforce Commerce Cloud (SFCC) platforms when needed.
Integrate systems with external services such as payment gateways, ERP, CRM, OMS, and third-party platforms via REST/SOAP APIs.
Optimize application performance, security, maintainability, and user experience.
Apply software engineering best practices including clean code, testing, CI/CD, and Agile/Scrum methodologies.
Investigate technical issues, propose practical solutions, and actively contribute throughout the development lifecycle.
Continuously learn new technologies and contribute ideas to improve engineering standards and product quality.

5+ years of experience in software development with strong hands-on experience in fullstack/backend development using .NET technologies.
Strong proficiency in C#, .NET Core/.NET Framework, ASP.NET, Web APIs, and backend architecture design.
Experience building scalable enterprise applications, APIs, and system integrations.
Good understanding of Object-Oriented Programming (OOP), design patterns, SOLID principles, and clean architecture.
Experience working with Microservices, RESTful APIs, and distributed systems.
Familiarity with frontend technologies such as JavaScript, HTML5, CSS3, and modern frontend frameworks (React, Angular, Vue, etc.).
Experience working with relational databases such as SQL Server/MySQL and understanding of database optimization concepts.
Familiarity with cloud environments, CI/CD pipelines, Git, and modern development workflows.
Experience with eCommerce platforms or Salesforce Commerce Cloud (SFCC/Demandware).
Strong problem-solving and analytical skills with the ability to work independently and handle complex technical challenges.
Good English communication skills for meetings and cross-team collaboration.
Proactive, collaborative, and eager to continuously learn and grow in a dynamic engineering environment.

Attractive and competitive performance-based compensation package.
Full gross salary during probation.
Generous 13-month salary and dedication bonus.
Comprehensive healthcare insurance package and annual health check-ups.
Flexible check-in time before 10:00 AM on weekdays.
12 annual leave days, 5 sick leave days, 11 public holidays as required by Vietnamese Labor Law, plus one extra day off for Christmas.
Opportunity to work on global projects, collaborate with international teams.
Daily breakfast, Happy hours gatherings to connect with colleagues.
Active sport clubs such as badminton, running, football, music clubs.
Teambuilding activities, annual company trips, and year end party.
Continuous learning opportunities through technical & soft skills training, English classes, and internal communities.
Financial assistance for important life events, including marriage, childbirth, and bereavement, ensuring support at every stage of life.