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# C#/.NET Developer

- **Company:** Green Key Resources
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Algorithmic Trading, Component-Based Software Engineering, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Code Review, Continuous Integration, Database Queries, Monitoring of Systems, Microsoft Software, Microsoft SQL Server, Object-Oriented Software Development, Secure Coding, Software Engineering, Systems Integration, Enterprise Software Applications, Software Troubleshooting, Information Technology
- **Published:** October 13, 2026
- **Apply:** https://www.juju.com/job/2_163278314

## About the Role

This is a hands-on senior engineering role focused on building and modernizing enterprise applications, APIs, integrations, and services using C#, .NET, SQL Server, and Microsoft technologies.

The ideal candidate will have strong software engineering experience, a solid understanding of CI/CD and Azure DevOps, and experience troubleshooting production applications. Experience with financial services, capital markets, trading systems, or market data is a plus., * Bachelor's degree in computer science, engineering, or a related field.

 * Minimum of 5 years of professional software development experience; 10 years preferred.
 * Expertise in C#, .NET Framework, and modern .NET development.
 * Proficiency in SQL Server, including query development and performance troubleshooting.
 * Practical experience with Azure DevOps, CI/CD pipelines, and software change controls.
 * Knowledge of object-oriented design, secure coding, and automated testing.
 * Experience in financial services or capital markets preferred. xrbllit
 * Strong communication skills and ability to work collaboratively with stakeholders.

## Description

* As a Senior C#/.NET Developer, you will design, develop, and modernize enterprise applications and services using Microsoft technologies.
 * Collaborate with cross-functional teams to deliver robust solutions in a regulated financial-services environment.
 * Lead technical initiatives, including design reviews, code reviews, and mentoring junior developers.
 * Enhance application maintainability, testability, and performance while ensuring operational resilience.
 * Utilize Azure DevOps for CI/CD pipelines, automated testing, and deployment controls.
 * Investigate production issues, document root causes, and implement corrective actions.
 * Work in a hybrid environment with opportunities for remote collaboration.
 * Contribute to a dynamic team culture that values professional development and innovation., * Design and develop enterprise applications, services, APIs, and integration components using C#, .NET, and SQL Server.
 * Modernize application components to improve security, documentation, and operational resilience.
 * Build and enhance Azure DevOps repositories and CI/CD pipelines for efficient software delivery.
 * Support trading workflows involving market data, messaging, and enterprise interfaces.
 * Investigate and resolve production issues using logs, database queries, and monitoring tools.
 * Provide technical leadership through mentoring, knowledge sharing, and development standards.
 * Collaborate with stakeholders to deliver controlled solutions in a regulated environment.
 * Ensure compliance with industry standards and best practices in software development.