prudentdev
@PrudentDev
Sergey Sagan
Architect • Senior Software Engineer • SaaS Founder • Problem Solver
About
Expert Software Development with 20+ years of experience across web development, mobile apps, cloud infrastructure, AI tools, and SaaS platforms. I build practical, high-performanc... Show more
Top Skills
C#
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ASP.NET
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SQL
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JavaScript
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JQuery
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TypeScript
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Angular
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CSS
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HTML
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Mobile
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Front End
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Back End
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Full Stack
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Crypto
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SAAS
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Much, much more...
Experience
work
Senior Software Engineer and Architect
PrudentDev, LLC/Sagan Marketing, LLC
Feb 2007 - PresentSoftware Architecture, Web Application Development (primarily C# MVC, API & Blazor, Angular 2+, cryptocurrency); Internet Marketing (SEO, Social Networking, Paid Ads, and more); Web Site Design (custom tailored and original).
Projects
Site Informant
Visit Project open_in_new May 2025 - PresentWebsite uptime monitoring with 1-minute checks, SSL expiration tracking, email alerts, and a public JSON API. The first site is free. Monitor up to 10 sites for $1 per month.
Language & Tools
C#, .NET Core, ASP.NET MVC, Blazor, Web API, Entity Framework, SQLite, SQL Server, Azure, Docker, Stripe, JavaScript, TypeScript, HTML/CSS, Bootstrap, MAUI, PICO-8, Git, CI/CD, Caddy, Linux, AI/LLM integrations.
Currently Exploring
Building lightweight SaaS tools, AI-powered workflows, autonomous agents, efficient real-time monitoring systems, and refining billing automation with Stripe. Also diving deeper into game development and creative coding.
Achievements
• Founder of Site Informant, a fast, affordable website uptime & SSL monitoring platform
• Built production-grade SaaS applications used daily by real businesses
• 20+ years of professional engineering experience across enterprise and startup environments
• Designed end-to-end systems across API, frontend, database, cloud deployment, and automation
• Created multiple tools used by clients for automation, analytics, and marketing
• Built production-grade SaaS applications used daily by real businesses
• 20+ years of professional engineering experience across enterprise and startup environments
• Designed end-to-end systems across API, frontend, database, cloud deployment, and automation
• Created multiple tools used by clients for automation, analytics, and marketing
Fun Fact
I enjoy building everything — from SaaS products to CNC projects to retro-style video games. If it combines creativity + tech, I’m in.
Random Dev Quote
Losers make excuses, winners just get it done.
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