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Daniela Petruzalek

Daniela Petruzalek

Technologist, gamer and cat lover

Hello and welcome! I’m Daniela Petruzalek.

I’m a Developer Relations Engineer at Google, where I focus on Go, Data, and the exciting world of AI Agents. This blog is my space to share what I’m learning, from best practices in backend engineering to experiments with “vibe coding.”

Expect technical deep dives, career reflections, and the occasional post about cats and coffee. You can find out more about my professional background on the About page.

Disclaimer: The views expressed here are my own and do not necessarily represent those of my employer.

My Year in Review: 2025

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Career & Personal Reflection Year-in-Review Google Career Vibe-Coding

Reflecting on a transformative 2025: from joining Google and mastering vibe coding to building my own AI tools and finding a new rhythm in life and engineering.

Recent

Taming Vibe Coding: The Engineer's Guide
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Workflow & Best Practices Vibe-Coding Ai Mcp Gemini-Cli Jules
Get the speed of AI without the mess. Apply engineering basics to keep your code structured, safe, and built to last.
How to Build an Offline Agent with ADK, Ollama and SQLite
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AI & Development Ai Python Tutorial Rag Gemini Adk
Learn how to make your AI agent completely offline. We walk through swapping the cloud model for a local Qwen 2.5 via Ollama, and building a local RAG knowledge base using SQLite and sqlite-rag to query Osquery schemas and packs.
Beyond the Dev-UI: How to Build an Interface for an ADK agent
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AI & Development Genai Tutorial Adk Gemini Python Fastapi Frontend Agent
Elevate your Google ADK agent with a custom, retro-style interface. This step-by-step guide shows you how to replace the standard Dev-UI using FastAPI and vanilla JavaScript, adding personality with a real-time streaming, AI-generated avatar.
Celebrating Six Months at Google!
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Career & Personal Google Milestone Community Devrel Mental-Health
Celebrating my first six months at Google! Reflecting on a whirlwind of 15 events across 5 countries, diving deep into the AI ecosystem, and achieving a major personal health milestone along the way.
How to Create a Diagnostic Agent With Agent Development Kit
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AI & Development Adk Gemini Vertex-Ai Python Rag Tutorial
This article is a guide to creating a diagnostic agent with the Agent Development Kit (ADK). It covers the development process and explains how to use Vertex AI RAG to improve the agent’s response quality.
Hello, MCP World!
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AI & Development Mcp Gemini Golang Keynote
Based on my keynote at Gophercon UK 2025, this article is an introduction to the Model Context Protocol (MCP), exploring its core concepts, architecture, and the building blocks — Tools, Prompts, and Resources — used to create AI-enabled applications with Go.
A Model for Perceived Time
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Career & Personal Psychology Time-Perception Mental-Models
An exploration into why time seems to speed up as we age, using a simple mathematical model to uncover a surprising truth about our perception of life.
Introducing Speedgrapher: An MCP Server for Vibe Writing
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Workflow & Best Practices Golang Gemini-Cli Mcp Ai Vibe-Coding
The story of Speedgrapher, a custom MCP server for ‘vibe writing.’ It details the journey of turning a personal collection of prompts into a portable, AI-powered toolkit to automate and structure the creative process.
How to Build an MCP Server with Gemini CLI and Go
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AI & Development Golang Gemini-Cli Mcp Ai Codelab Tutorial
A step-by-step guide on how I built GoDoctor, an AI-powered Go development assistant, using the Model Context Protocol (MCP) and the Gemini CLI.