Programmer - Advanced .Net in Columbia SC Onsite

We are seeking a highly skilled Application Developer to support the modernization of a legacy Case Management System (CMS) into a scalable, maintainable, and modern .NET (C#) architecture. This role focuses on migrating business logic, data layers, and integrations from legacy systems into a service-oriented architecture using RESTful APIs.

Key Responsibilities

1. Legacy System Analysis & Reverse Engineering

• Analyze legacy system models, generated code, and database structures
• Identify and document business rules, data flows, and dependencies
• Translate legacy logic into scalable .NET-based solutions

2. Application Modernization

• Design and develop .NET (C#) applications to replace legacy components
• Refactor systems into layered architecture (API, Services, Data Access)
• Ensure compatibility during phased system migration

3. API Development & Integration

• Develop RESTful APIs for system integrations
• Enable secure integrations with internal and external systems
• Implement authentication/authorization (JWT, OAuth2, RBAC)
• Manage API governance, versioning, logging, and monitoring

4. Data Layer Transformation

• Modernize data access using Entity Framework, Dapper, and SQL Server
• Support multi-database environments and data warehouse integrations
• Ensure performance optimization, data integrity, and auditability

5. Development & DevOps Practices

• Utilize Git-based source control and CI/CD pipelines (Azure DevOps or similar)
• Establish coding standards, documentation, and testing strategies
• Support automated testing (unit and integration)

6. Migration Strategy

• Support phased modernization using patterns like Strangler Fig
• Enable parallel system operations and risk mitigation strategies
• Collaborate on prioritization of critical modules

7. Stakeholder Collaboration

• Work closely with business users, IT teams, and external partners
• Translate business requirements into technical solutions

8. Reporting & Analytics

• Develop and maintain Power BI reports using DAX
• Support applications integrated with data warehouse systems

Required Qualifications

• Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience)
• 3+ years of application development experience
• 3+ years of experience with SQL Server / T-SQL
• 3+ years of experience supporting legacy or enterprise systems
• Strong debugging and problem-solving skills

Preferred Qualifications

• Experience with legacy platforms such as CA Plex or similar model-driven environments
• Knowledge of generated languages (C++, Java, or .NET)
• Experience with REST API development and system integrations
• Familiarity with data warehousing and reporting environments
• Experience in government or judicial systems
• Understanding of case lifecycle management and transactional systems