Charles Lybrand
@charleslybrand
Senior full-stack engineer building scalable, data-driven SaaS with C#/.NET and React.
What I'm looking for
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
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%.
Senior Software Engineer
WorkWave
May 2023 - Jul 2025 (2 years 2 months)
Delivered full-stack features for a SaaS field-service platform using C#, ASP.NET Core, React, and SQL Server. Implemented Redis caching and backend optimizations that improved API performance by 35% and enhanced UX to increase feature adoption by 20%.
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.
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.
Frontend Developer
Applied Systems
Jun 2018 - Oct 2019 (1 year 4 months)
Built AngularJS-based enterprise web applications for insurance and business management workflows, including forms, dashboards, and data-driven UI components. Improved cross-browser compatibility and UI responsiveness, reducing frontend defect rates by 20%, and integrated APIs with backend teams in Agile sprints.
Education
Degrees, certifications, and relevant coursework
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.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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