Senior .NET Developer · 20+ Years

Hi, I'm John Loper

I build software that matters — enterprise systems, revenue-generating SaaS products, and tools that serve thousands of users daily.

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Portfolio

Featured Projects

Products I've built, shipped, and continue to maintain — each solving real problems for real users.

TorrentRover

● Live

Commercial torrent download manager and meta-search tool serving 10,000+ users for over a decade. Full-stack: desktop client, web server, payment processing.

C#WPFAvaloniaASP.NET CorePostgreSQLStripe

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AssetTrackr

● Live

Multi-tenant SaaS asset management platform with tenant isolation, role-based access control, and Stripe payment integration.

ASP.NET CoreEF CorePostgreSQLStripeDocker

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InfiniBoard

◐ Development

Full-featured Kanban project management system with drag-and-drop workflows, custom fields, and team collaboration.

ASP.NET CorePostgreSQLTailwind CSS

SageAcademy

◐ Development

AI-integrated K-12 homeschool curriculum platform with automated lesson planning and content generation.

C#.NETAI/LLMPostgreSQL

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Expertise

Core Technologies

C#VB.NETASP.NET CoreEntity FrameworkSQL ServerPostgreSQLDockerLinuxnginxGitREST APIsTypeScriptTailwind CSSAvalonia UIWPFAI/LLM

Ready to Build Something Great?

I'm open to full-time remote positions (W2 or 1099). Let's talk about how I can help your team ship quality software.

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