Billy Linn — Software Engineer

I build software, automation, and AI tools that solve real problems.

For 15+ years I've worked across web development, cloud systems, IoT, and business operations — from Laravel applications and AWS serverless architectures to embedded devices, AI workflows, and developer tooling. I like taking messy operational problems and turning them into systems that just work.

Currently focused on

Where my work and curiosity overlap right now.

  • AI-assisted software development
  • Developer productivity tooling
  • Laravel & PHP applications
  • AWS serverless systems
  • IoT & automation platforms
  • Small business technology

Featured projects

A cross-section of the work — AI, SaaS, hardware, and the tools in between.

AI / LLM Integration

At Alchemer, architected a multi-provider AWS Bedrock proof-of-concept and built an LLM evaluation system on Langfuse — provider routing, prompt design, and scoring the quality of AI-generated survey output.

AWS Bedrock Python Langfuse LLM

DoorWiki — Property Management SaaS

Self-built, multi-tenant SaaS PWA for property management. Full AWS serverless stack — Lambda image processing, S3, RDS/Postgres — on Laravel with Stripe, Mailgun, and Google Places. Runs real operations.

Laravel AWS Serverless Postgres Stripe Multi-tenant

Smart Locker Platform

Cloud-connected IoT locker system for 24/7 laundry drop-off and pickup. ESP32 firmware in C/C++, MQTT over AWS IoT Core, Lambda event processing, and a custom-designed PCB.

ESP32 C/C++ AWS IoT Core Lambda MQTT

Developer Tools Suite

A growing collection of 60+ free, fast, browser-based developer and engineering tools — regex testers, encoders, converters, and calculators. Built and hosted at linncode.com/tools.

JavaScript Web Developer Tooling

What I enjoy working on

I enjoy solving messy operational problems where software, automation, and AI can create measurable improvements. I'm particularly drawn to developer productivity, process automation, and building tools that help teams move faster — and I like owning the hard parts end-to-end, from architecture down to the details that actually ship.

Get in touch

Always happy to talk shop, collaborate, or hear about an interesting problem.

billy@linncode.com