Sr. .NET Full stack

ZealHire Inc.; Atlanta, Northern (GA, KY); Hybrid; USD 120,000 - 170,000; Full time

Job summary

ZealHire Inc. seeks a senior .NET engineer to lead modernization of a statewide platform, moving from legacy ASP.NET to .NET 8+, with modern APIs, Azure cloud services, and a React-based UI.

You will own architectural decisions, design scalable solutions, and drive delivery from concept to production with accountability in a hybrid Atlanta environment.

Qualifications

• 8+ years of professional .NET development experience with C#, ASP.NET MVC, Web API
• Designed and maintained RESTful APIs used by external systems
• Experience migrating legacy ASP.NET apps to modern .NET (6/7/8)
• Production SQL Server experience including stored procedures, T-SQL tuning, and migrations
• 5+ years delivering software in Agile environments using ADO or GitHub

Responsibilities

• Lead modernization of mission-critical licensing and eligibility applications
• Design and implement scalable, secure, and maintainable solutions to reduce technical debt
• Build and evolve API-first integrations and cloud-native services on Azure
• Own the SQL Server platform including data architecture, performance tuning, and migrations
• Implement CI/CD pipelines using Azure DevOps for automated testing and deployment
• Guide architecture reviews, code reviews, and documentation across the team
• Develop React-based UI components as part of the modernization roadmap
• Integrate third-party services and internal APIs with clean documentation
• Provide production support and root-cause analysis when issues arise
• Participate in architecture reviews and sprint ceremonies

Skills

API design

Agile

Leadership

Architecture

SQL tuning

Education

Bachelor's degree in CS/IT or related field

Equivalent work experience

Tools

Azure App Services

Azure Functions

Azure DevOps

GitHub

SSRS

Power BI

React

SQL Server

Job description

Hybrid: Tuesday–Thursday on-site at, Atlanta

Interview Mode: Potential for in-person therefore must be physically in in Atlanta

Must have prior state client experience. It can be for any state

What This Role Actually Is

We are in the middle of amajor modernization effort, moving from a legacy ASP.NET architecture to .NET 8+, modern APIs,Azure cloud services, and a React-based user experience.This is not a maintenance or production support role.This position is for a senior engineer who wants to lead modernization efforts, solve complex

technical problems, and help shape the future architecture of a statewide platform. You will play a

key role in technical design decisions, application architecture, cloud integration, and delivery.

Our team is intentionally lean. That means ownership matters. You will be expected to take a solution

from concept to production, including design, development, testing, deployment, documentation,

and operational support. Success in this role requires initiative, accountability, and the ability to work

independently.

If you're looking for a highly structured environment where work is narrowly defined and tasks are

handed to you step-by-step, this is probably not the right fit. If you enjoy building, leading, and

owning outcomes, you'll thrive here. .

What You Will Do:

Application Modernization (Core of this Role)

• Champion the modernization of mission-critical licensing and eligibility applications,
• Design and implement scalable, secure, and maintainable application solutions that reduce
• technical debt and improve long-term supportability.
• Build and evolve API-first integrations and services that enable future platform capabilities.
• Develop cloud-native solutions using Azure App Services, Azure Functions, and related Azure
• technologies.
• Own the SQL Server platform, including data architecture, performance tuning, data
• migration, and platform modernization.
• Implement and maintain CI/CD pipelines using Azure DevOps to automate testing,
• deployment, and release management.
• Drive engineering excellence through code reviews, automation, documentation, and
• adherence to modern development practices.

Frontend & Integration

• Build and maintain React-based UI components as part of the modernization roadmap
• Demonstrate a strong understanding of web application rendering patterns, including client
• side rendering (CSR), server-side rendering (SSR), component-based architectures, and
• modern frontend frameworks.
• Integrate third-party services and internal APIs; document every integration cleanly
• Implement and maintain reporting using SSRS and Power BI
• Participate in AI integration initiatives — Azure Agentic AI services, Copilot tooling, and chatbot
• integrations where applicable

Quality, Documentation & Support

• Write code that your teammates can read and maintain six months from now
• Provide production support and own root-cause analysis when things break
• Maintain application documentation, deployment runbooks, and user-facing guides
• Participate in architecture reviews, code reviews, and sprint ceremonies

Required Qualifications

EXPERIENCE

• 8+ years of professional .NET development experience — C#, ASP.NET MVC, Web API
• You have designed and maintained RESTful APIs that external systems depend on
• Demonstrated, hands-on experience migrating legacy ASP.NET applications to modern .NET (6,
• 7, 8 or 10) — not just exposure
• Production SQL Server experience: stored procedures, T-SQL tuning, schema migrations, data
• cleanup
• 5+ years delivering software in Agile (Scrum or Kanban) environments using ADO or GitHub

Education

• Bachelor's degree in Computer Science, Information Technology, or a related field — or
• equivalent work experience that demonstrates the same depth

$000,000 – $000,000 Salary range is not shown on the candidate portal