Senior Full-Stack .NET Modernization Developer

Hi,

We are having immediate requirement on below mentioned JD;

Job Title:

Senior Full-Stack .NET Modernization Developer

Work Location: Atlanta, GA
Candidate Requirement:
Local Atlanta, GA candidates only
Work Mode:
Hybrid
Work Auth:
Any Visa accepted (No H1 and No Fake Profile)
Experience

Required:


10+ years

We are seeking a highly experienced Senior .NET Developer / Application Modernization Engineer to support the modernization of a mission-critical statewide licensing and eligibility platform.

The ideal candidate will have strong hands-on experience modernizing legacy ASP.NET applications to modern .NET 6/7/8/10 , building secure and scalable REST APIs , developing React components , working with Azure cloud services , and managing complex SQL Server environments.

This is not a pure maintenance role. The selected candidate will be expected to take ownership of solutions from design and development through testing, deployment, documentation, and production support .

• Bachelor's degree in Computer Science, Information Technology, or a related field

• Equivalent professional experience may be considered

• 10+ years of overall professional software development experience

• Strong hands-on experience with:

  • C#

  • ASP.NET MVC

  • ASP.NET Web API / REST APIs

• Proven experience modernizing production applications from legacy ASP.NET to .NET 6, 7, 8, or 10

• Must have completed real-world application modernization initiatives, not only proof-of-concept work

• 5+ years of Agile delivery experience using Scrum or Kanban

• Experience with
  Azure Dev Ops or Git Hub

• Strong production troubleshooting and root-cause analysis experience

• Lead modernization of legacy enterprise applications to modern .NET 8+ / .NET 10

• Design scalable, secure, maintainable application architectures

• Reduce technical debt and improve platform maintainability

• Participate in application architecture and technical design decisions

• Strong understanding of modern .NET application patterns and best practices

• Design, build, and maintain RESTful APIs

• Experience supporting APIs consumed by external systems

• Strong understanding of API contracts, integration patterns, error handling, versioning, and documentation

• Experience building API-first enterprise applications

• Minimum 3 years of React experience

• Must have experience building and enhancing React components within an existing enterprise application

• Strong understanding of:

  • Component-based architecture

  • Client-side rendering (CSR)

  • Server-side rendering (SSR)

  • Modern frontend development patterns

Strong hands-on experience with:

• Azure App Services

• Azure Function Apps

• Application configuration management

• Cloud deployments

• Azure-based application integration

• Deployment and release pipelines

• Azure Dev Ops CI/CD

Strong production experience with:

• SQL Server

• T-SQL

• Stored procedures

• Query and performance tuning

• Schema changes and migrations

• Data cleanup

• Data migration

• Database troubleshooting

• Data architecture

• Develop and maintain CI/CD pipelines using Azure Dev Ops

• Automate builds, testing, releases, and deployments

• Support configuration and environment management

• Experience with Git-based development workflows

• Strong code review, release management, and deployment practices

Minimum 3 years of experience with one or both of the following:

• Power BI

• SSRS

• Experience integrating third-party services and internal enterprise APIs

• Strong API and middleware integration background

• Experience with middleware platforms such as:

  • Boomi

  • Mule Soft

Preferred experience with:

• Azure Agentic AI services

• Azure AI integrations

• Microsoft Copilot-related tooling

• Chatbot integrations

• AI-driven features integrated into production applications

Preferred experience with:

• ADA / WCAG 2.1 AA accessibility standards

• Government, healthcare, or public-sector applications

• Compliance and auditability requirements

• PII data

• Data security and privacy controls

Minimum 3 years of experience in one or more of the following environments is preferred:

• Government

• State or public-sector systems

• Healthcare

• Highly regulated enterprise applications

• Modernize legacy ASP.NET applications to modern .NET and Azure-based architectures

• Design scalable and secure enterprise application solutions

• Develop cloud-native applications using Azure services

• Build and…