Intern-Middle .NET Developer

BLUE OC TECH – RECRUITMENT

Job Title: .NET Developer (Intern/Fresher – Junior/Middle)

About the Role

Blue OC Tech is looking for passionate .NET Developers to join our team and work on international projects with US clients. Depending on your experience level, you will participate in developing and maintaining desktop applications, web systems, cloud-based services, and plugin-driven solutions using modern Microsoft technologies.

You will collaborate closely with software engineers, product teams, and international stakeholders to build scalable, high-quality products and continuously improve your technical skills.

Responsibilities

Intern / Fresher

• Participate in software development projects under the guidance of senior team members.
• Develop and maintain features using C# and .NET technologies.
• Assist in bug fixing, testing, and system maintenance.
• Contribute ideas and improvements to projects.
• Learn and follow Agile/Scrum development processes.
• Collaborate with team members to deliver assigned tasks on schedule.

Junior / Middle

• Design, develop, and maintain Windows desktop applications, web applications, APIs, and plugin-based systems.
• Build scalable, maintainable, and high-performance software solutions.
• Participate in system design, code reviews, and technical discussions.
• Work closely with product managers, QA engineers, DevOps engineers, and international clients.
• Troubleshoot production issues and optimize system performance.
• Contribute to long-term product development and technical improvements.

Requirements:

Intern / Fresher Level

• Bachelor’s degree (or final-year student) in Computer Science, Software Engineering, or related fields.
• Good understanding of C#, .NET, OOP concepts, and software development fundamentals.
• Strong analytical thinking and problem-solving skills.
• Knowledge of SQL and relational databases (SQL Server, MySQL, PostgreSQL).
• Basic understanding of cloud platforms such as AWS, Azure, or GCP.
• Familiarity with Agile/Scrum methodologies.
• Good English reading skills; communication ability is a plus.
• Strong willingness to learn and grow.

Junior / Middle Level

• 2–5 years of professional software development experience.
• Strong proficiency in C#, .NET Framework, and .NET Core.
• Solid understanding of OOP, SOLID principles, and software design patterns.
• Experience developing Windows desktop applications (WPF, WinForms, Windows Applications).
• Experience with ASP.NET MVC, Web API, and RESTful services.
• Experience working with SQL Server and database design.
• Familiarity with IIS configuration and deployment.
• Experience with AWS or Azure cloud environments.
• Experience with clean architecture, maintainable codebases, and software best practices.
• Experience with plugin-based/extensible architectures is a strong advantage.
• Knowledge of 3D visualization, geometry, or graphics-related technologies is a plus.
• Good English communication skills for working with international clients.

Nice to Have

• Experience with CI/CD pipelines.
• Docker and container technologies.
• Cloud-native architecture.
• Microservices experience.
• Knowledge of DevOps practices.
• Experience working directly with overseas clients.

Benefits

• Attractive salary and performance-based bonuses.
• Full benefits according to Vietnam Labor Law (Social Insurance, Health Insurance, etc.).
• International, professional, and dynamic working environment.
• Opportunity to work with global clients and experts.
• Training and career development opportunities.
• Annual company trips and team-building activities.
• Paid annual leave and public holidays.
• Potential onsite opportunities with international clients.

Working Location

• 12th Floor, Technopark Tower, Vinhomes Ocean Park, Gia Lam, Hanoi
• 7th Floor, HL Tower, 82 Duy Tan, Cau Giay, Hanoi