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Charles LybrandCL
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Charles Lybrand

@charleslybrand

Senior full-stack engineer building scalable, data-driven SaaS with C#/.NET and React.

United States
Message

What I'm looking for

I’m looking for a team where I can build scalable, data-driven SaaS end-to-end—shipping strong backend APIs and high-performance React/TypeScript UI, integrating cloud services, and improving reliability and speed in distributed production systems.

I’m a Senior Full-Stack Software Engineer with 7+ years of experience building production SaaS and enterprise web applications end-to-end. I focus on scalable services, performant user interfaces, and data-driven applications in distributed environments—shipping both backend APIs and frontend UI systems.

In my recent roles, I’ve delivered full-stack healthcare and SaaS features using C#, .NET, React, and SQL Server, including AI-powered search capabilities with Azure OpenAI and RAG pipelines. I also optimize performance across frontend rendering and backend services, and I work across UI/API layers to debug production issues and improve system stability.

Experience

Work history, roles, and key accomplishments

HE
Current

Senior Software Engineer

HealthCatalyst

Aug 2025 - Present (11 months)

Built full-stack healthcare analytics features using C#, .NET 8, React, and SQL Server, including backend APIs and reporting/analytics UI workflows. Implemented AI-powered search with Azure OpenAI and RAG pipelines and improved report generation time by 35% and end-to-end response time by 30%.

CI

Software Engineer

Cisco

Feb 2021 - May 2023 (2 years 3 months)

Developed full-stack enterprise features using C#, .NET Core, SQL Server, and Azure, building backend APIs and internal tool UI workflows. Improved API throughput by 25%, migrated services to Azure, and built CI/CD pipelines with Azure DevOps.

SC

Frontend Developer

SPS Commerce

Nov 2019 - Feb 2021 (1 year 3 months)

Built React and Vue.js frontend applications for retail and supply chain platforms, creating reusable UI components and design system elements. Improved UI responsiveness and page-load performance by 25% by integrating with REST APIs and optimizing rendering.

Education

Degrees, certifications, and relevant coursework

University of Texas at Austin logoUA

University of Texas at Austin

Bachelor of Science, Mathematical Sciences

2015 - 2018

Earned a Bachelor of Science in Mathematical Sciences from the University of Texas at Austin between 2015 and 2018.

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