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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer - **Company:** Purple Drive Technologies LLC - **Location:** Carrollton, TX, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ASP.NET, .NET Framework, PHP (Programming Language), Agile Methodology, Amazon Web Services, Apache HTTP Server, Application Performance Management, Unit Testing, Microsoft Azure, LAMP (Software Bundle), Behavior-Driven Development, C Sharp (Programming Language), Mobile Application Development, Code Review, Databases, Continuous Delivery, Continuous Integration, Relational Databases, Database Design, Software Design Patterns, Linux, DevOps, Github, Identity and Access Management, JSON, PostgreSQL, Microsoft SQL Server, MySQL, Model View Controller (MVC), Nunit, OAuth, Object-Oriented Software Development, Open Source Technology, Scrum Methodology, Systems Development Life Cycle, Query Optimization, Ruby on Rails, Ruby, Standard Sql, Secure Coding, Software Deployment, SQL Databases, Web Applications, Web Services, Extensible Markup Language (XML), Enterprise Software Applications, Test-Driven Development (TDD), .NET Core, Spring Cloud, Rspec, Software Security, Backend, Git, Customer Identity Access Management, Integration Tests, Solid Principles, Kubernetes, Deployment Automation, Api Design, Restful APIs, Code Restructuring, Docker, Jenkins, Microservices - **Published:** July 28, 2026 - **Apply:** https://www.dice.com/job-detail/36c90fbc-008b-4f9b-8589-5e4405e06866 ## About the Role We are seeking an experienced Senior Application Developer (.NET / Ruby on Rails) to design, develop, and support enterprise-grade web applications and microservices. The ideal candidate will have strong expertise in .NET Core, C#, Ruby on Rails, REST APIs, Microservices, Azure/AWS, PostgreSQL, SQL Server, DevOps, Docker, Kubernetes, and Agile development. Experience in the Financial Services or Mortgage domain is highly preferred., * .NET Core / .NET 6+ * C# * Ruby on Rails * Ruby * ASP.NET Core * MVC Architecture * Object-Oriented Programming (OOP) * Design Patterns * Refactoring * SOLID Principles Backend Development * RESTful APIs * Microservices Architecture * Web Services * API Development * API Security * JSON/XML Testing & Development Practices * Test-Driven Development (TDD) * Behavior-Driven Development (BDD) * RSpec * NUnit * Unit Testing * Integration Testing * Code Reviews Databases * PostgreSQL * SQL Server * MySQL * Relational Databases * SQL * Data Modeling * Query Optimization Cloud & DevOps * Microsoft Azure * AWS * Docker * Kubernetes * CI/CD Pipelines * Azure DevOps * Jenkins * Git * GitHub * Deployment Automation Security * OAuth 2.0 * IAM (Identity & Access Management) * CIAM * Secure Coding Practices * Authentication & Authorization Open Source & Operating Systems * Linux * Open Source Technologies * LAMP Stack * Apache * PHP (Basic Knowledge) Methodologies * Agile * Scrum * SDLC * Continuous Integration * Continuous Delivery, * Technical Leadership * Problem Solving * Stakeholder Communication * Mentoring * Team Collaboration * Production Support, * Experience in Financial Services, Mortgage, or Mortgage-Backed Securities (MBS) * Experience with Azure or AWS cloud-native application development * Familiarity with container orchestration using Kubernetes * Experience working in enterprise-scale Agile environments * Strong understanding of secure software development practices CONTRACTOR, FULL_TIME, PART_TIME ## Description * Design, develop, and maintain enterprise applications using .NET Core, C#, and Ruby on Rails * Develop scalable REST APIs and microservices for cloud-native applications * Apply BDD/TDD methodologies using RSpec and NUnit to ensure high-quality software delivery * Build, test, and deploy applications through automated CI/CD pipelines * Prepare and support production deployments while ensuring application stability * Troubleshoot and resolve production issues, providing timely support for live applications * Optimize SQL queries, database design, and application performance across PostgreSQL, SQL Server, and MySQL * Implement secure authentication and authorization using OAuth2, IAM, and CIAM standards * Collaborate with architects, product owners, QA teams, and business stakeholders throughout the SDLC * Mentor junior developers, conduct code reviews, and promote engineering best practices * Participate in Agile ceremonies including sprint planning, stand-ups, retrospectives, and backlog refinement * Contribute to technical documentation, solution design, and continuous process improvement ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)