I build practical software, automation, and AI-powered tools designed to solve real-world problems.

I have 10+ years of experience in application support, IT operations, incident management, troubleshooting, and business-critical technology environments across financial services, telecommunications, healthcare, and IT services.

My current goal is to combine that operational experience with software development, Python automation, Applied AI, mobile applications, and defensive cybersecurity.

Mi MerKado is an offline-first mobile application designed to organize shopping lists, track purchases, register prices and stores, and preserve a useful history of household expenses.

The idea was born from a real everyday problem: replacing disposable paper shopping lists with a practical mobile tool capable of supporting the entire shopping process.

• Create and manage shopping lists.
• Add products, quantities, prices, and stores.
• Mark products while shopping.
• Automatically calculate the total amount spent.
• Preserve a history of completed purchases.
• Review what was purchased, where, when, and at what price.
• Store information locally on the device.
• Work without requiring a permanent internet connection.
• Clean mobile-first interface.
• Fluid animations and micro-interactions.

• React Native
• Expo
• TypeScript
• Zustand
• React Native Reanimated
• AsyncStorage
• Expo Router
• Git and GitHub

• Built from a real personal need.
• Offline-first architecture.
• Local state and data persistence.
• Reusable UI components.
• Shopping history and expense tracking.
• Progressive development from concept to functional MVP.
• Focus on usability, simplicity, and practical value.

Status: Functional MVP available on GitHub.

View Repository

Privacy-focused local voice dictation application for Windows 10 and Windows 11.

It captures microphone audio in memory, transcribes it locally using whisper.cpp, and inserts the resulting text into the active application without relying on cloud services.

• Fully local and offline transcription.
• No cloud processing or dictation history.
• Configurable keyboard shortcuts.
• Automatic language detection.
• Support for multiple languages.
• Different Whisper model profiles.
• Automatic insertion or editable review.
• Portable Windows edition and installer.
• Privacy-focused architecture.

• Rust
• Tauri
• TypeScript
• Vite
• whisper.cpp
• PowerShell
• Windows WebView2

Status: Functional Windows distribution completed and manually validated.

View Repository

Lightweight desktop screen annotation tool designed to draw, highlight, and create notes over any Windows application.

• Transparent screen overlay.
• Freehand drawing.
• Color and line-width controls.
• Adjustable eraser.
• Undo and redo.
• Multi-monitor support.
• Interaction mode for accessing background applications.
• Portable Windows distribution.

Status: Functional version completed. Repository documentation in progress.

• Systems Engineer with 10+ years of experience in technology.
• Strong background in Application Support L2/L3 and IT Operations.
• Experience supporting Java and .NET enterprise applications.
• Skilled in SQL-based troubleshooting with Oracle, SQL Server, and MySQL.
• Experienced in Linux and Windows environments.
• Background in incident management, root cause analysis, functional testing, deployments, and technical documentation.
• Currently building practical software, mobile applications, automation, and AI-assisted solutions.
• Native Spanish speaker with intermediate technical English.
• Based in Colombia and open to remote and international opportunities.

• Python programming and automation.
• Building practical mobile and desktop applications.
• Object-Oriented Programming.
• REST API consumption and system integration.
• AI-assisted software development with Claude Code, GitHub Copilot, and other AI tools.
• Applied AI and LLM-powered solutions.
• Privacy-focused local AI applications.
• Defensive cybersecurity and Blue Team fundamentals.
• Building a professional portfolio based on functional projects.

• Python
• Java
• JavaScript
• TypeScript
• React Native
• Expo
• Node.js fundamentals
• PHP
• HTML5
• CSS
• Object-Oriented Programming
• REST and SOAP APIs

• Oracle Database
• Microsoft SQL Server
• MySQL
• SQL
• Supabase fundamentals
• DBeaver

• Application Support L2/L3
• Incident and Request Management
• Root Cause Analysis
• Functional Testing
• Technical Documentation
• SLA Management
• Production Support
• Platform Monitoring
• Deployment Support
• Business Continuity

• Linux
• Windows
• AWS fundamentals
• Microsoft Azure fundamentals
• Google Cloud Platform fundamentals
• VMware
• VirtualBox
• WebLogic Middleware

• Git
• GitHub
• Postman
• Jira
• ServiceNow
• Service Manager
• PuTTY
• WinSCP
• MobaXterm
• Visual Studio Code

• Claude
• Claude Code
• ChatGPT
• Microsoft Copilot
• GitHub Copilot
• Gemini
• Generative AI
• Prompt engineering fundamentals
• AI-assisted development
• Python automation

• Defensive cybersecurity
• Networking fundamentals
• Nmap
• Wireshark
• Blue Team fundamentals
• SOC fundamentals
• Security awareness
• Incident analysis

• Python: Guía para ser un Pythonista — Completed
• Claude Code 101 — Anthropic — Completed
• Claude 101 — Anthropic — Completed
• Introduction to Generative AI — Google — Completed
• Introduction to Cybersecurity — Cisco — Completed

My Python training covered:

• Python syntax and core concepts.
• Data types and collections.
• Control flow.
• Functions.
• Modules and packages.
• Object-Oriented Programming.
• Error and exception handling.
• File reading and writing.
• Virtual environments and dependency management.

My main differentiator is the combination of:

• Real-world experience supporting business-critical applications.
• Structured troubleshooting and incident analysis.
• Understanding of technical and operational business needs.
• Software development and automation skills.
• Experience taking products from an idea to a functional MVP.
• Continuous learning in AI and cybersecurity.
• Clear technical documentation and communication.

I do not approach software only from the code perspective.

I also consider usability, supportability, monitoring, data persistence, incident handling, documentation, security, business continuity, and the real problem the solution is expected to solve.

• LinkedIn: linkedin.com/in/hernan-daniel-briceno
• GitHub: github.com/Hebrondev
• Portfolio: Coming soon

Building practical technology solutions through software, automation, AI, and continuous learning.