Senior Full-Stack C# Engineer | FinTech & Cloud

Madison-Davis, LLC; New York (NY); On-site; USD 120,000 - 170,000; Full time

Job summary

Madison-Davis, LLC is seeking a Senior Developer II – Full Stack C# to join a technology team delivering modern enterprise applications and digital solutions for wealth management and client-facing platforms.

The role focuses on building scalable full-stack solutions, integrating with internal/third-party systems, and leveraging cloud-ready data platforms. 6+ years of C#/.NET experience, SQL Server, and collaboration with business stakeholders are essential.

Qualifications

• 6+ years of experience developing enterprise applications using C#, ASP.NET, .NET Core, and SQL Server.
• Strong SQL development, data modeling, and database optimization experience.
• Experience working with Snowflake or modern cloud-based data platforms.
• Experience building REST APIs and SOAP services using JSON and XML.
• Experience using Azure DevOps, Git, and CI/CD pipelines.
• Experience working within Agile development environments.
• Background supporting financial services or other highly regulated industries.
• Strong communication skills and the ability to collaborate with both technical and business stakeholders.
• Experience using AI-assisted development tools such as GitHub Copilot or similar is a plus.
• Ability to work independently while mentoring junior engineers.

Responsibilities

• Design, develop, and maintain enterprise applications using C# and .NET technologies.
• Build scalable full-stack solutions supporting internal and client-facing business platforms.
• Develop and optimize SQL queries, stored procedures, and database solutions across enterprise data environments.
• Design and implement REST and SOAP API integrations with internal and third-party systems.
• Partner with business stakeholders to gather requirements and translate them into technical solutions.
• Participate in architecture discussions, code reviews, and technical design sessions.
• Support the full software development lifecycle, including development, testing, deployment, and production support.
• Troubleshoot production issues while improving application performance, scalability, and reliability.
• Contribute to application modernization, automation, and cloud migration initiatives.
• Mentor junior developers and promote engineering best practices.

Skills

C#

ASP.NET

NET Core

SQL Server

REST APIs

SOAP services

Azure DevOps

Git

CI/CD

Agile

Communication

Mentoring

AI-assisted tools

Independent work

Tools

Snowflake

Cloud platforms

Kubernetes

OpenShift

Job description

Madison-Davis, LLC is seeking a Senior Developer II – Full Stack C# to join a technology team delivering modern enterprise applications and digital solutions for wealth management and client-facing platforms.

The role focuses on building scalable full-stack solutions, integrating with internal/third-party systems, and leveraging cloud-ready data platforms. 6+ years of C#/.NET experience, SQL Server, and collaboration with business stakeholders are essential.