Dotnet Developer

Rainbow Secure; India; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Rainbow Secure is seeking an experienced .NET Developer to design, build, and secure business applications. You will work across legacy and modern .NET technologies, including Blazor, ASPX Web Forms, WinForms, and VB.NET, ensuring secure coding practices and identity integrations.

You will collaborate with users and internal teams during US business hours, providing support, documentation, and training as needed.

Qualifications

• 4–8 years of professional software design and development experience.
• Bachelor's degree in computer science.
• Strong proficiency in C# and .NET.
• Hands-on experience with ASPX Web Forms.
• WinForms and VB.NET experience.
• Experience with Secure DevOps / DevSecOps.

Responsibilities

• Design, develop, maintain, and support applications using C#, .NET, Blazor, ASPX Web Forms, and WinForms.
• Develop Blazor Server-side and Client-side applications.
• Implement secure coding practices throughout the lifecycle.
• Work with Microsoft Graph and SCIM APIs for identity provisioning.
• Collaborate with users and internal teams during US business hours.
• Provide application support and troubleshooting.
• Participate in code reviews and performance optimization.

Skills

C#

.NET

Blazor

ASPX Web Forms

WinForms

VB.NET

Secure DevOps

GitHub

Active Directory

Microsoft Graph API

SCIM API

Encryption

Session management

Authentication

Authorization

Legacy applications

Education

Bachelor's degree in computer science

Tools

Visual Studio

Job description

We are looking for an experienced .NET Developer with 4-8 years of hands‑on experience in software design, development, application support, and secure application engineering. The ideal candidate should have strong expertise in the Microsoft .NET ecosystem and be comfortable working with both modern and legacy applications.

You will be responsible for developing, maintaining, securing, and supporting business applications while collaborating with users and internal teams during US working hours.

Key Responsibilities

• Design, develop, maintain, and support applications using C#, .NET, Blazor, ASPX Web Forms, and WinForms. Having technical expertise in Blazor is a must.
• Develop applications using both Blazor Server-side and Client-side technologies.
• Work with C# and VB.NET across new and existing applications.
• Implement secure software development practices throughout the application lifecycle.
• Apply encryption, secure session management, authentication, and authorization best practices.
• Develop and integrate APIs, including Microsoft Graph API.
• Work with SCIM APIs for identity and user provisioning integrations.
• Develop and maintain interfaces with Microsoft Active Directory.
• Support application deployments and contribute to Secure DevOps/DevSecOps practices.
• Use GitHub for source-code management, collaboration, and version control.
• Troubleshoot application issues and provide timely application support.
• Work directly with users to understand issues and provide technical assistance.
• Conduct user training and prepare technical/user documentation where required.
• Participate in code reviews, testing, debugging, and performance optimization.
• Maintain security, reliability, and scalability of applications.

Required Technical Skills

• 4–8 years of professional software design and development experience.
• Bachelor's degree in computer science
• Strong proficiency in C# and .NET.
• Hands-on experience with:
• ASPX Web Forms
• Windows Forms (WinForms)
• VB.NET
• Experience with Secure DevOps / DevSecOps practices.
• Strong understanding of:
• Encryption and data protection
• Session management
• Authentication and authorization
• Secure coding practices
• Experience with Microsoft Graph API.
• Knowledge of SCIM API and identity provisioning
• Experience with Active Directory interface programming.
• Good working knowledge of GitHub/Git-based development workflows.
• Strong troubleshooting and application-support skills.
• Excellent communication skills and ability to work directly with end users.

Good to Have

• Experience with Credentials Provider programming.
• Experience developing identity and access management integrations.
• Knowledge of enterprise cybersecurity and identity security.
• Experience supporting applications in production environments.
• Exposure to cloud-based application development and Microsoft technologies.

Candidate Profile

We are looking for someone who is:

• Strong in problem‑solving and software engineering fundamentals.
• Security‑conscious and comfortable working with sensitive application and identity data.
• Able to work independently and take ownership of application issues.
• Comfortable working with legacy as well as modern .NET technologies.
• Good at communicating technical concepts to both technical and non‑technical users.
• Comfortable working US business hours.
• Having Certifications

Employment Terms

• Quarterly performance reviews
• Full‑time position