Senior Developer II – Full Stack C#, Private Wealth Technology

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

A leading financial services organization is seeking a Senior Developer II – Full Stack C# to join a technology team responsible for delivering modern applications and digital solutions that support wealth management professionals and client-facing platforms.

This role is ideal for an experienced engineer who enjoys building enterprise applications, developing system integrations, working with complex financial data, and partnering directly with business stakeholders to deliver high-quality software.

What You'll Tackle:

• 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.

What You Bring:

• 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.

Nice to Have:

• Kubernetes or OpenShift.
• Domain-Driven Design (DDD).
• Event-driven architecture.
• Salesforce integrations.
• Excel VBA or Macros.
• Cloud modernization and platform engineering experience.