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# C# Backend Developer

- **Company:** Lifeblood Health Foundation
- **Location:** Littleton, CO, United States
- **Experience:** Expert
- **Salary:** $105,000.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Software Suite, Unit Testing, C Sharp (Programming Language), Databases, Data Integrity, Software Debugging, Microsoft SQL Server, Performance Tuning, Systems Integration, Web Application Frameworks, Website Wireframe, ReactJS, Backend, Information Technology, Api Design, Restful APIs
- **Published:** September 13, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=322ef82df4dc9182

## About the Role

* Experience: 5+ years of active enterprise development experience using C# and .NET 6+.
 * API Design: Proven track record building and integrating secure, RESTful web APIs.
 * Database Mastery: Strong proficiency with Microsoft SQL Server performance tuning and schema design.
 * Testing: Solid dedication to unit testing and automated quality workflows.
 * Collaboration: Strong communication skills, accountability, and a collaborative team mindset.
 * Bonus Points: Experience with React or modern frontend frameworks is a major plus.
 * Education: Bachelor's degree in Computer Science, IT, or a related field preferred (or equivalent practical experience).

## Description

Lifeblood Technologies is seeking an experienced C# Backend Developer to join our small, agile engineering team. In this role, you will take ownership of the end-to-end development, architecture, and production support of our application suite. Your work will directly power our platform's mission: helping people take an educational, proactive approach to addressing their health issues by delivering reliable resources via a highly secure, seamless digital experience., * Feature Delivery: Translate product specifications and wireframes into clean, modern, and well-documented C# code.

 * API Architecture: Design, build, and maintain highly scalable, secure RESTful APIs.
 * Data Integrity: Manage and optimize Microsoft SQL Server databases to ensure peak data efficiency and security.
 * System Health: Diagnose, debug, and upgrade existing applications while ensuring robust unit test coverage.
 * Innovation: Stay current with evolving industry trends and integrate modern software engineering best practices.