Full Stack Software Engineer

banyansoftware; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

BanyanSoftware is seeking a skilled .NET engineer to build and maintain web applications for clinical and administrative teams. You’ll work across modern and legacy .NET systems, databases, and integrations, focusing on dependable software and useful improvements.

Collaborate with product, support, QA, and implementation teams to translate operational needs into robust software while ensuring security and data protection in healthcare contexts.

Qualifications

• Proven experience with C# and .NET in web apps.
• Strong SQL Server and T-SQL skills including stored procedures.
• HTML/CSS/JavaScript and common web patterns.
• Git, automated testing, debugging, and code reviews.
• Ability to understand and improve a business-critical codebase.
• Clear written and verbal communication.

Responsibilities

• Develop and maintain web applications using C#, .NET and SQL Server.
• Build APIs, services, background jobs, DB procedures, and responsive UIs.
• Investigate issues across app, DB, integrations, and deployment layers.
• Create automated unit and browser-based tests; participate in reviews.
• Modernize legacy .NET and Windows components while preserving reliability.
• Implement secure integrations and protect health information through proper coding.

Skills

C#

.NET

ASP.NET Core

ASP.NET MVC

SQL Server

T-SQL

HTML

CSS

JavaScript

Git

Automated testing

Code review

Tools

Dapper

Razor

jQuery

Bootstrap

Entity Framework Core

xUnit

NUnit

Playwright

Job description

Role overview

Build and maintain web applications used by clinical and administrative teams. The work spans modern and established .NET systems, databases, integrations, and patient-facing experiences, with an emphasis on making useful improvements while keeping business-critical software dependable. You’ll collaborate with product, support, quality, and implementation partners to turn operational needs into practical software.

Responsibilities

• Develop and maintain applications using C#, .NET, ASP.NET, JavaScript, and SQL Server.
• Build APIs, services, background jobs, database procedures, and responsive user interfaces.
• Investigate issues across application, database, integration, and deployment layers.
• Create automated unit and browser-based integration tests, and participate in reviews, design, and release validation.
• Modernize legacy .NET and Windows components while preserving compatibility and production reliability.
• Implement secure integrations and protect sensitive health information through appropriate coding and authorization practices.

Requirements

• Professional experience with C# and .NET, and experience building web applications with ASP.NET Core or ASP.NET MVC.
• Strong SQL Server and T-SQL skills, including stored procedures and query optimization.
• Working knowledge of HTML, CSS, JavaScript, and common web development patterns.
• Experience with Git, automated testing, debugging, and code review.
• Ability to understand and improve an established, business-critical codebase.
• Clear written and verbal communication skills.

Nice to have

• Experience with tools such as Dapper, Razor, jQuery, Bootstrap, Entity Framework Core, xUnit, NUnit, or Playwright.
• Familiarity with legacy .NET or Windows systems, CI/CD, background-job frameworks, or API documentation tools.
• Experience with healthcare software, sensitive health data, patient portals, billing, scheduling, clinical workflows, or multi-tenant systems.