Full Stack .NET Developer (Chicago)

Resource 1 is seeking a Full Stack .NET Developer to join our client's software engineering team responsible for developing, enhancing, and modernizing enterprise applications within the financial services, compliance, and risk management sectors.

This position is approximately 70% backend development and 30% frontend development, with a primary focus on designing and building business logic, RESTful APIs, and database-driven applications using Microsoft's technology stack. The ideal candidate will possess strong expertise in C#, .NET, SQL Server, and React.js, along with the ability to quickly become a productive contributor in a collaborative Agile environment with minimal supervision.

Primary Responsibilities

• Design, develop, test, and maintain enterprise software applications using C#, .NET, SQL Server, and React.js.
• Develop and support RESTful APIs, backend services, and business logic components.
• Build and maintain responsive user interfaces using React.js.
• Write and optimize SQL queries to support application functionality and performance.
• Collaborate with architects, product owners, QA, DevOps, and fellow developers to deliver high-quality software solutions.
• Participate in code reviews and contribute to engineering best practices.
• Troubleshoot and resolve application, performance, scalability, and production support issues.
• Support ongoing modernization efforts, including migration from AngularJS to React.js and adoption of microservices-based architectures.
• Contribute to secure software development practices and remediation of identified vulnerabilities.
• Participate in Agile/Scrum ceremonies, including sprint planning, standups, retrospectives, and backlog refinement.
• Utilize AI-assisted development tools where appropriate to improve productivity and code quality.

Required Qualifications

• 5-7 years of professional software development experience.
• 5+ years of hands-on experience with: C#, .NET / ASP.NET, SQL Server, and RESTful API development.
• Experience developing front-end applications using React.js.
• Strong experience developing business logic, backend services, and data-driven applications.
• Experience building and supporting enterprise applications.
• Strong SQL skills, including query development, optimization, and troubleshooting.
• Experience working across the full software development lifecycle.
• Understanding of object-oriented programming principles and software design best practices.
• Strong analytical, problem-solving, and troubleshooting skills.
• Excellent communication and collaboration skills.
• Ability to work independently and deliver high-quality code with minimal oversight.

Preferred Qualifications

• Experience with Microsoft Azure.
• Experience developing cloud-native applications and microservices.
• Experience with Azure DevOps and CI/CD pipelines.
• Experience with Docker and containerized deployments.
• Knowledge of secure software development practices and application security principles.
• Experience modernizing legacy applications and migrating from AngularJS to React.js.
• Experience with GitHub Copilot, Microsoft Copilot, or other AI-assisted development tools.
• Familiarity with Kubernetes and Terraform.
• Experience working within financial services, compliance, governance, risk management, or other regulated industries.

Technology Environment

• Backend: C#, .NET, ASP.NET, SQL Server, REST APIs
• Frontend: React.js, JavaScript, HTML, CSS
• Cloud: Microsoft Azure
• DevOps: Azure DevOps, CI/CD
• Architecture: Microservices, Cloud-Native Applications
• Methodology: Agile/Scrum (2-Week Sprints)