Demo

Senior Full-Stack .NET Modernization Developer

Coventek Inc
Atlanta, GA Contractor
POSTED ON 9/25/2026
AVAILABLE BEFORE 11/23/2026

NOTE:

  • Send your resume to recruiting@coventek.com
  • Local to Atlanta, GA
  • Hybrid is required


Short Description:
Under general supervision, designs, codes, tests, modifies and debugs computer software.


Complete Description:

What This Role Actually Is 

  • DECAL's core licensing platform is a mission-critical application that supports childcare 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.

 

Work Location:

  • 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

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 
  • 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 
  • 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 

 

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 
  • 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 

 

 

Hourly Wage Estimation for Senior Full-Stack .NET Modernization Developer in Atlanta, GA
$50.00 to $63.00
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