Senior C#/.NET Engineer - FinServ, Azure DevOps, Hybrid

Green Key Resources; New York (NY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Green Key Resources is seeking a Senior C#/.NET Developer to join an application development team supporting business-critical applications in a regulated financial-services environment. The role is hands-on and focuses on building and modernizing enterprise applications, APIs, integrations, and services using C#, .NET, SQL Server, and Microsoft technologies.

The ideal candidate will bring strong software engineering experience, a solid understanding of CI/CD and Azure DevOps, and the ability to

Qualifications

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

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 development

API design

Mentoring

CI/CD understanding

Education

Bachelor's degree in computer science or engineering

Tools

Azure DevOps

SQL Server

Microsoft technologies

Job description

Green Key Resources is seeking a Senior C#/.NET Developer to join an application development team supporting business-critical applications in a regulated financial-services environment. The role is hands-on and focuses on building and modernizing enterprise applications, APIs, integrations, and services using C#, .NET, SQL Server, and Microsoft technologies.

The ideal candidate will bring strong software engineering experience, a solid understanding of CI/CD and Azure DevOps, and the ability to