Builder Lab
Apps, tools, and websites built and shipped in public. Follow what's live at builder.sebastianhof.com.
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Sebastian Hof
Engineer. Builder.
Creator.
Senior cloud, data, and AI engineer available for client projects. I build and ship products in public, and share practical notes from real implementation work.
Freelance Practice
I join product teams as a senior engineer to architect and ship cloud, data, and AI systems. Project-based, outcome-focused, no fluff.
Open freelance.sebastianhof.comContent
Practical notes from real implementation work — cloud architecture, data engineering, and AI delivery. No theory, no vendor marketing.
Browse contentCurrently Building
What I'm Working On
Apps, tools, and websites I'm building in public. Follow along as I ship.
In Development
appsCooking Flow
A guided cooking companion that keeps recipes, timers, and steps in one focused flow.
Latest Content
Recent Articles
Practical notes from real implementation work
Nov 17, 2025
From Vibe Coding to Spec-Driven Development: Building Software That Scales
Why serious software development needs executable specifications and how modern tools make it practical.
AISoftware EngineeringDevelopment Tools
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Aug 8, 2025
Building Connected AI Agents with Amazon Bedrock AgentCore Gateway
Enhancing AI agents with external tool integration using Amazon Bedrock AgentCore Gateway.
AIAI AgentsAWS
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Jul 24, 2025
Bedrock AgentCore: The Easy Button for AI Agent Deployment on AWS
A fully managed service for deploying AI agents at scale on AWS.
AIAI AgentsAWS
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