Custom applications
Internal tools, customer portals, SaaS products, and mobile apps built around the work your team actually does.
Web · Mobile · SaaS
Caleb Bertsch · Custom software developerFort Wayne, Indiana
Make the software fit the business.
I design and build custom web, mobile, and cloud software for businesses with problems that packaged software cannot solve.
Discuss a projectCapabilities
Custom software, without the handoffs.
You work directly with the person designing the system and writing the code.
System modernization
Move aging .NET and business-critical systems forward without losing the knowledge embedded in them.
.NET · Azure · Cloud
Practical AI
Use AI where it earns its keep: assist staff, connect company knowledge, and automate repetitive work.
Agents · Integrations · Automation
Technology focus
Microsoft technologies I work with.
A focused stack for business applications, cloud hosting, and practical AI.
Business Central AL development
Microsoft Dynamics 365 Business Central extensions and customizations written in AL.
C# and ASP.NET web applications
Custom business applications and APIs built with C#, ASP.NET Core, and the broader .NET platform.
Azure application hosting optimization
Application architecture and hosting changes that reduce Azure spend, focused on application workloads rather than server or network infrastructure.
Microsoft Agent Framework
AI agent workflows and software integrations built with Microsoft Agent Framework.
Experience
Built in the real world.
I’m Caleb Bertsch. For more than 14 years, I’ve designed and delivered software across web, mobile, SaaS, cloud, and AI-enabled systems.
At Action Micro Technologies, I delivered business applications, kiosks, mobile apps, and Microsoft Dynamics customizations. I also founded and built Time Clock Now, a SaaS platform acquired for $1.65M.
Co-Founder / CTO
BT Pro Solutions
Software Development Consultant
Action Micro Technologies
Senior Software Engineer
Sweetwater Sound
Contact
Tell me what needs to work better.
Send a short note about the problem, the current system, or the idea you want to test. I’ll reply personally.
caleb@bertsch.dev