Senior .NET Developer – Contract – Columbia, SC

SUNSHINE ENTERPRISE USA LLC; New York (NY); Hybrid; USD 90,000 - 120,000; Part time

Job summary

Sunshine Enterprise USA LLC is seeking a Senior .NET Developer to design, develop, and maintain enterprise web applications using the Microsoft stack. The role emphasizes RESTful APIs, scalable N-tier architectures, and collaboration across design, development, testing, deployment, and production support.

You will build Angular-based front-ends, optimize SQL Server databases, and contribute to code quality, documentation, and best practices while mentoring junior developers in a fast-paced

Qualifications

• 8 years of software development experience.
• 7 years of experience designing and developing medium to large-scale applications using .NET technologies.
• 5 years of experience developing data-driven applications using SQL Server.
• 5 years of experience building secure, scalable web applications using N-tier architecture.
• 2 years of experience developing applications using Angular.

Responsibilities

• Design, develop, and maintain enterprise web applications using the Microsoft .NET technology stack.
• Build RESTful Web APIs and scalable N-tier applications.
• Develop user interfaces using Angular, jQuery, and responsive web design techniques.
• Design and optimize SQL Server databases, queries, stored procedures, and reports.
• Participate in system design, coding, unit testing, integration testing, deployment, and production support.
• Debug and resolve application defects and performance issues.
• Collaborate with technical leads, business analysts, QA teams, and stakeholders throughout the SDLC.
• Maintain source code, build processes, and deployment pipelines.
• Document technical designs, application components, and implementation decisions.
• Mentor junior developers and contribute to technical best practices.

Skills

C#

ASP.NET

ASP.NET Core

SQL Server

Angular

REST APIs

Entity Framework

IIS

Web API

SDLC

Education

Bachelor's degree in Computer Science or related field

Tools

Visual Studio

Team Foundation Server (TFS)

jQuery

Job description

Senior .NET Developer Location: Columbia, SC hybrid (3 days onsite per week) - subject to change to fully onsite with little to no notice

Interview Process: 2 rounds, 1st round will be via Teams, the 2nd round will be In-Person. Candidates should expect to be onsite with very little notice for the 2nd round interview.

Duration: 12 MonthsEmployment Type: ContractExperience Required: 08 Years

Candidate location: Candidate MUST be a SC resident or willing to relocate to SC prior to starting the role at their own expense.

Project Scope:

We are seeking an experienced Senior .NET Developer to design, develop, and maintain enterprise web applications supporting mission-critical business systems. The ideal candidate will have strong expertise in Microsoft technologies, modern web development frameworks, SQL Server, and full software development lifecycle (SDLC) practices.

The role involves developing scalable, secure, and high-performance applications while collaborating with cross-functional teams throughout design, development, testing, deployment, and production support.

Key Responsibilities:

• Design, develop, and maintain enterprise web applications using the Microsoft .NET technology stack.
• Build RESTful Web APIs and scalable N-tier applications.
• Develop user interfaces using Angular, jQuery, and responsive web design techniques.
• Design and optimize SQL Server databases, queries, stored procedures, and reports.
• Participate in system design, coding, unit testing, integration testing, deployment, and production support.
• Debug and resolve application defects and performance issues.
• Collaborate with technical leads, business analysts, QA teams, and stakeholders throughout the SDLC.
• Maintain source code, build processes, and deployment pipelines.
• Document technical designs, application components, and implementation decisions.
• Mentor junior developers and contribute to technical best practices.

Required Skills & Experience:

• 8 years of overall software development experience.
• 7 years of experience designing and developing medium to large-scale applications using .NET technologies.
• 5 years of experience developing data-driven applications using SQL Server.
• 5 years of experience building secure, scalable web applications using N-tier architecture.
• 2 years of experience developing applications using Angular.

Strong experience with:

• C#
• ASP.NET / ASP.NET MVC
• .NET / .NET Core
• ASP.NET Core Web API / REST APIs
• Entity Framework
• Microsoft SQL Server
• jQuery
• IIS
• Responsive Web Design

Experience with software development lifecycle (SDLC), unit testing, integration testing, and deployment.

Strong analytical, troubleshooting, and communication skills.

Preferred Skills:

• Experience developing Economic Services or Eligibility systems (SNAP/TANF).
• Experience working in Agile development environments.
• Microsoft development certifications.
• Experience mentoring development teams.

Education

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience.

Preferred Certifications

• Microsoft Development Certifications are preferred.

Technical Environment

• Microsoft Visual Studio, C#, ASP.NET / ASP.NET MVC, .NET / .NET Core, ASP.NET Core Web API / Minimal API, Microsoft SQL Server, IIS, Team Foundation Server (TFS), Entity Framework, Angular / PrimeNG, AngularJS, jQuery, SSRS, WCF