Senior Full Stack .NET Developer
Na Ali'i Consulting & Sales, LLC., Charleston, SC, United States
Overview
Nakupuna Companies is seeking a highly experienced Senior Full Stack .NET Developer to design, develop, and modernize enterprise applications using the Microsoft technology stack. This is a hands-on development role requiring deep expertise in modern .NET technologies and front-end frameworks.
Responsibilities
The following reflects management’s definition of essential functions for this job but does not restrict the tasks that may be assigned.
Management may assign additional duties and responsibilities to this job at any time due to reasonable accommodation or other reasons.
Application Design & Development
Design, develop, and maintain enterprise applications using C#, ASP.NET, .NET Framework 4.x, and .NET 6/7/8/9/10+
Build and maintain RESTful APIs and backend services using .NET Web API
Develop modern responsive user interfaces using React
Integrate front-end applications with backend APIs and services
Design and implement scalable database solutions using Microsoft SQL Server
Participate in modernization efforts migrating legacy applications to modern .NET platforms
Requirements Analysis & Solution Design
Work directly with stakeholders, product owners, and analysts to understand functional and technical requirements
Translate business requirements into technical designs and implementation approaches
Produce technical documentation, architecture diagrams, and data flow representations
Provide level-of-effort estimates and development strategies
Participate in Agile planning, backlog grooming, and sprint activities
Software Quality & Automated Testing
Develop unit tests to validate business logic and application components
Implement automated testing using frameworks such as xUnit, NUnit, or MSTest
Write integration tests for APIs and service interactions
Develop front-end test coverage using tools such as Jest or React Testing Library
Ensure applications are designed with testability and maintainability in mind
Participate in code reviews and enforce engineering quality standards
Support application security testing efforts, including SAST and DAST scan remediation
Maintain appropriate test coverage for critical application functionality
Code Quality & Engineering Standards
Follow modern software engineering practices including clean architecture and design patterns
Conduct peer code reviews and approve pull requests
Ensure applications meet security, accessibility (Section 508), and performance standards
Troubleshoot and resolve complex technical issues
Recommend improvements to application architecture and system performance
Technical Leadership
Provide guidance and mentorship to other developers
Promote best practices in secure coding, testing, and maintainable software design
Assist with modernization and refactoring of legacy applications
Serve as a senior technical contributor within the development team
Qualifications
Skills/Qualifications:
The ideal candidate will have strong experience building scalable applications, designing APIs, and working directly with stakeholders to translate business requirements into well-engineered software solutions. This role requires a developer who can think architecturally while remaining hands-on with coding, testing, and implementation.
Experience with mobile application development or integration, including iOS, Android, or cross-platform frameworks (e.g., React Native, .NET MAUI) is strongly preferred.
Required Education and Experience:
Bachelor’s degree in Computer Science, Information Technology, or related field
8–12+ years of experience in software development
Preferred Qualifications:
Experience modernizing legacy applications to .NET 8+
Experience building scalable microservices or service-based architectures
Experience with Azure-hosted application services
Experience integrating with enterprise systems or messaging platforms
Experience performing application security code reviews
Physical Requirements:
The ideal candidate must at a minimum be able to meet the following physical requirements of the job
with or without a reasonable accommodation:
Ability to perform repetitive motions with the hands, wrists, and fingers
Ability to engage in and follow audible communications in emergency situations
Ability to sit for prolonged periods at a desk and working on a computer
Nakupuna Companies is seeking a highly experienced Senior Full Stack .NET Developer to design, develop, and modernize enterprise applications using the Microsoft technology stack. This is a hands-on development role requiring deep expertise in modern .NET technologies and front-end frameworks.
Responsibilities
The following reflects management’s definition of essential functions for this job but does not restrict the tasks that may be assigned.
Management may assign additional duties and responsibilities to this job at any time due to reasonable accommodation or other reasons.
Application Design & Development
Design, develop, and maintain enterprise applications using C#, ASP.NET, .NET Framework 4.x, and .NET 6/7/8/9/10+
Build and maintain RESTful APIs and backend services using .NET Web API
Develop modern responsive user interfaces using React
Integrate front-end applications with backend APIs and services
Design and implement scalable database solutions using Microsoft SQL Server
Participate in modernization efforts migrating legacy applications to modern .NET platforms
Requirements Analysis & Solution Design
Work directly with stakeholders, product owners, and analysts to understand functional and technical requirements
Translate business requirements into technical designs and implementation approaches
Produce technical documentation, architecture diagrams, and data flow representations
Provide level-of-effort estimates and development strategies
Participate in Agile planning, backlog grooming, and sprint activities
Software Quality & Automated Testing
Develop unit tests to validate business logic and application components
Implement automated testing using frameworks such as xUnit, NUnit, or MSTest
Write integration tests for APIs and service interactions
Develop front-end test coverage using tools such as Jest or React Testing Library
Ensure applications are designed with testability and maintainability in mind
Participate in code reviews and enforce engineering quality standards
Support application security testing efforts, including SAST and DAST scan remediation
Maintain appropriate test coverage for critical application functionality
Code Quality & Engineering Standards
Follow modern software engineering practices including clean architecture and design patterns
Conduct peer code reviews and approve pull requests
Ensure applications meet security, accessibility (Section 508), and performance standards
Troubleshoot and resolve complex technical issues
Recommend improvements to application architecture and system performance
Technical Leadership
Provide guidance and mentorship to other developers
Promote best practices in secure coding, testing, and maintainable software design
Assist with modernization and refactoring of legacy applications
Serve as a senior technical contributor within the development team
Qualifications
Skills/Qualifications:
The ideal candidate will have strong experience building scalable applications, designing APIs, and working directly with stakeholders to translate business requirements into well-engineered software solutions. This role requires a developer who can think architecturally while remaining hands-on with coding, testing, and implementation.
Experience with mobile application development or integration, including iOS, Android, or cross-platform frameworks (e.g., React Native, .NET MAUI) is strongly preferred.
Required Education and Experience:
Bachelor’s degree in Computer Science, Information Technology, or related field
8–12+ years of experience in software development
Preferred Qualifications:
Experience modernizing legacy applications to .NET 8+
Experience building scalable microservices or service-based architectures
Experience with Azure-hosted application services
Experience integrating with enterprise systems or messaging platforms
Experience performing application security code reviews
Physical Requirements:
The ideal candidate must at a minimum be able to meet the following physical requirements of the job
with or without a reasonable accommodation:
Ability to perform repetitive motions with the hands, wrists, and fingers
Ability to engage in and follow audible communications in emergency situations
Ability to sit for prolonged periods at a desk and working on a computer