Senior .NET Developer - Enterprise Apps (Hybrid, SC)

Sunshine Enterprise USA LLC; Columbia (SC); Hybrid; USD 120,000 - 150,000; Part time

Job summary

Sunshine Enterprise USA LLC in Columbia, SC seeks a Senior .NET Developer to design, build, and maintain enterprise‑class applications. The role focuses on .NET/C#, Oracle and SQL Server integrations, and collaborating with business users and vendors to deliver reliable software solutions.

The candidate will work in a hybrid setup with 3 days in the office and 2 remote, and must have 10+ years of experience in the field.

Qualifications

• 6+ years of experience developing enterprise applications with .NET and C#.
• 4+ years supporting complex enterprise-class applications.
• 4+ years integrating with Oracle and SQL Server databases.
• 4+ years using Microsoft development tools; State Government experience.
• Strong troubleshooting, debugging, and problem-solving skills.
• Excellent verbal and written communication skills.

Responsibilities

• Design, develop, enhance, and maintain enterprise‑level .NET applications.
• Develop and support mission‑critical business applications using C# and .NET.
• Build and maintain integrations with Oracle and SQL Server databases.
• Develop solutions within Microsoft's software development ecosystem.
• Analyze, troubleshoot, debug, and resolve complex issues.
• Perform unit testing, integration testing, and production support.
• Collaborate with stakeholders to gather requirements and validate them.
• Coordinate with vendors and internal teams on specs and test plans.
• Participate in code reviews and uphold best practices.
• Maintain documentation and provide project status updates.
• Support deployments, upgrades, and ongoing maintenance.

Skills

C#

NET

Troubleshooting

Communication

Debugging

State Government experience

Microsoft Tools

Enterprise Apps

Education

Bachelor's Degree in Computer Science/IT

Tools

Visual Studio 2022

Visual COBOL

Oracle

SQL Server

Microsoft development tools

System integrations

Job description

Sunshine Enterprise USA LLC in Columbia, SC seeks a Senior .NET Developer to design, build, and maintain enterprise‑class applications. The role focuses on .NET/C#, Oracle and SQL Server integrations, and collaborating with business users and vendors to deliver reliable software solutions.

The candidate will work in a hybrid setup with 3 days in the office and 2 remote, and must have 10+ years of experience in the field.