Senior C#/.NET Developer

Green Key Resources; New York (NY); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Green Key Resources is seeking a Senior C#/.NET Developer in New York, hybrid work with remote opportunities. You will design, develop, and modernize enterprise applications using C#, .NET, and SQL Server, while leading technical initiatives and mentoring junior developers.

You will contribute to protected financial services workflows, enhance security and performance, and build robust CI/CD pipelines with Azure DevOps. Strong communication and collaboration with stakeholders are essential.

Qualifications

• 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.
• Strong communication skills and ability to work collaboratively with stakeholders.

Responsibilities

• 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.

Skills

C#

.NET Framework

Azure

SQL Server

CI/CD

Financial services

Mentoring

Communication

Education

Bachelor's degree in computer science, engineering, or related field

Tools

Azure DevOps

Git

Job 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.

Senior C#/.NET Developer Key Responsibilities & Duties

• 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.

Senior C#/.NET Developer Job Requirements

• 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.
• Strong communication skills and ability to work collaboratively with stakeholders.