Senior .NET Developer

Sunshine Enterprise USA

Senior .NET Developer developing and supporting mission-critical applications for enterprise solutions. Collaborating with teams and integrating system technologies in a hybrid work environment.

Posted 7/19/2026contractColumbia • South Carolina • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in developing and maintaining enterprise-level .NET applications, with a strong focus on C# and integration with Oracle and SQL Server databases. Proven ability to troubleshoot complex application issues and collaborate effectively with stakeholders.

Highest-signal resume keywords

Enterprise Application DevelopmentC# ProgrammingOracle Database IntegrationSQL Server IntegrationMicrosoft Software Development Tools

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Enterprise Application DevelopmentC# ProgrammingOracle Database IntegrationSQL Server IntegrationUnit TestingIntegration TestingTroubleshootingDebuggingProblem-SolvingTechnical Documentation

Soft Skills

Excellent Verbal CommunicationExcellent Written Communication

Tools & Technologies

.NET FrameworkMicrosoft Software Development Ecosystem

Industry Keywords

State Government ExperienceMission-Critical ApplicationsApplication MaintenanceCode ReviewsDevelopment Best Practices

Tech Stack

Tools & technologies

.NETOracleSQL

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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

Benefits

Comp & perks

Health insurance
401(k) matching
Paid time off
Professional development opportunities
Flexible work arrangements