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# Sr .Net Developer

- **Company:** Quantum Technologies
- **Location:** Alpharetta, GA, United States
- **Experience:** Expert
- **Salary:** $164,320
- **Contract:** Contract
- **Skills:** ASP.NET, .NET Framework, Application Integration Architecture, Application Performance Management, Batch Processing, C Sharp (Programming Language), Software Quality, Distributed Systems, Design of User Interfaces, JSON, MongoDB, Model View ViewModel, NoSQL, RabbitMQ, Resource Description Framework (RDF), Redis, Swagger, Reverse Engineering, Software Engineering, Extensible Markup Language (XML), Openapi, Data Logging, Enterprise Software Applications, Blazor, SOAPAPI, Data Analytics, Software Coding, Restful APIs, Legacy Systems
- **Published:** November 14, 2026
- **Apply:** https://www.dice.com/job-detail/a063495b-8b4c-4a6e-a940-e7657a1a7210

## About the Role

6+ years of professional software development experience.

 - Strong experience with .NET 6+, .NET 8, C#, and ASP.NET.
 - REST API and SOAP Web Services development.
 - Swagger / OpenAPI.
 - Blazor and MVVM / SPA frameworks.
 - Strong UI/UX development experience.
 - JSON, XML, and RDF data formats.
 - Relational and NoSQL databases.
 - MongoDB, Redis, and RabbitMQ.
 - Distributed applications and data-driven architectures.
 - Technical leadership and application integration.

## Description

We are seeking an experienced Senior .NET Developer to design and develop high-performance distributed applications within a large-scale logging and metrics ecosystem. The candidate will modernize legacy applications, integrate with mainframe and batch workflows, and build scalable solutions supporting compliance and core business operations., Design and develop a unified platform by consolidating multiple legacy systems.

 - Build and maintain high-performance distributed applications using .NET.
 - Develop REST and SOAP APIs and integrate enterprise systems.
 - Reverse-engineer legacy applications when source code is unavailable.
 - Collaborate with stakeholders to gather requirements and define technical solutions.
 - Lead solution architecture, technical design, and implementation.
 - Ensure coding standards, application performance, and code quality.
 - Analyze complex technical issues and recommend improvements.
 - Support backlog management, development planning, and on-call activities.
 - Integrate applications with mainframe and batch processing workflows.