SPAN Enterprises is hiring .NET Developers to build scalable, cloud-native web applications and RESTful APIs in Rock Hill, SC.

Design, develop, and maintain scalable applications with .NET Core and ASP.NET Core
Create secure, high-performance REST APIs
Produce clean, maintainable, reusable code using SOLID principles
Design efficient database schemas and optimize SQL queries
Work with both relational and NoSQL databases
Write comprehensive unit tests with xUnit or NUnit
Participate in code reviews and follow engineering best practices
Troubleshoot production issues and optimize application performance
Collaborate with Product, QA, DevOps, and Engineering teams
Contribute to CI/CD pipelines and deployment activities
Join architecture discussions and technical design reviews

3–6 years of experience building scalable web applications and RESTful APIs
C#
.NET Core / ASP.NET Core
ASP.NET Web API
RESTful API development
Dependency Injection
Entity Framework Core
LINQ
Basics of Authentication & Authorization (JWT/OAuth)
HTML5 and CSS3
JavaScript (ES6+)
Experience with one or more:
- Microsoft SQL Server
- PostgreSQL
- MongoDB
Knowledge of query and database topics, including:
- Query optimization
- Stored Procedures
- Indexing
- Transactions
- Database normalization
Object-Oriented Programming (OOP)
SOLID and Clean Code practices
N-Tier Architecture
Design patterns such as Repository, Factory, Strategy, etc.
Exception Handling & Logging
Unit Testing with xUnit/NUnit
Debugging and Performance Optimization
Git and Git branching strategies
Pull Requests and participation in code reviews

Location: Rock Hill, SC (onsite)

Compensation: USD 75,000 - 110,000 per year

Experience: 3+ years (3–6 years preferred)

Software Engineer / Senior Software Engineer – Dot NET

Job Description