Senior Full-Stack .NET Modernization Developer

Apollo Technology Solutions LLC

Atlanta, GA
30+ days ago

Highlights

Job Description: DECAL's core licensing platform is a mission-critical application that supports child care licensing, provider management, and program eligibility across the State of Georgia. Develop cloud-native solutions using Azure App Services, Azure Functions, and related Azure.

Numbers & Facts

Location

Atlanta, GA

Description

Title: Senior Full-Stack .NET Modernization Developer
Location: Atlanta, GA(Hybrid)
Duration: 8+ Months
Interview type: Either Web Cam or In Person

Note:

Must be physically located in Georgia
Hybrid: Tuesday Thursday on-site at DECAL headquarters, Atlanta (subject to manager

discretion)

Mandatory in-person: All Hands, Enterprise Applications meetings, DECAL All Staff, and

designated on-site milestones

Job Description:

DECAL's core licensing platform is a mission-critical application that supports child care licensing,
provider management, and program eligibility across the State of Georgia. We are in the middle of a
major 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 DECAL's mission-critical licensing and eligibility applications,
transitioning legacy solutions to modern .NET and Azure-based architectures.
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

WHAT HANDS-ON MEANS HERE

You have modernized a real application not a proof of concept from legacy ASP.NET

to .NET 6/7/8/10
You have designed and maintained RESTful APIs that external systems depend on
You have debugged production issues independently, without a team lead walking you through it

Preferred Qualifications
These will make you effective faster. They are not dealbreakers, but they distinguish competitive
candidates.

React experience specifically building components within an existing application, not greenfield
Exposer to .NET 10
Power BI or SSRS reporting development
Experience with government, healthcare, or public-sector systems you understand

compliance, auditability, and data sensitivity
Familiarity with ADA/WCAG 2.1 AA accessibility standards
Exposure to Azure Agentic AI services or integration of AI-driven features in production
applications
Experience with middleware platforms such as Boomi or MuleSoft
Background working with PII data and the security protocols that protect it

Education

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

equivalent work experience that demonstrates the same depth

What We Value Beyond the Technical

This team works on systems that affect real families in Georgia. We move fast because the mission requires it, but we do not cut corners on security, accessibility, or data integrity.
Ownership: You finish what you start and you tell people early when something is at risk
Directness: You surface problems with a proposed fix, not just a flag
Clarity under pressure: You can explain a technical constraint to a non-technical stakeholder
without condescending or drowning them in jargon
Adaptability: Government systems change scope. Requirements shift. You adjust without drama

Required Qualifications
EXPERIENCE

8+ years of professional .NET development experience C#, ASP.NET MVC, Web API
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
Azure hands-on: App Services, Function Apps, deployment pipelines, configuration management
5+ years delivering software in Agile (Scrum or Kanban) environments using ADO or GitHub

Senior Full-Stack .NET Modernization Developer

Apollo Technology Solutions LLC

Highlights

Numbers & Facts

Description

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