Andrés Geyer

About

I am a Computer Engineer with 7+ years of experience transforming complex requirements into secure, end-to-end digital solutions. My unique value lies in the intersection of hardware and software: I don't just build mobile apps (Flutter) or robust APIs (Node.js); I understand the entire lifecycle from the physical microcontroller to the cloud. **Master's in Cybersecurity graduate**, specialized in building resilient architectures and performing offensive/defensive security assessments to ensure every line of code is functional, secure, and audit-ready.

Software Engineer & Cyber Specialist

Experience: 7+ Years
Specialty: Full Stack & Security
Education: B.S. CompEng + MSc Cybersecurity

Location: Caracas & Global Remote
Email: hola@andresgeyer.dev
Status: Available for Middle/Senior Roles

Skills

• Flutter (Expert): Cross-platform, GetX, WebSockets.

• Native Android: Java & Kotlin (Android Studio).

• React & React Native: Web and Mobile development.

• Web Core: HTML5, CSS3, JavaScript (ES6+), PWA.

• Node.js: Express, Microservices, WebSockets, WebRTC.

• Architecture: Microservices, REST APIs, SSR.

• Backend Languages: Python (AI/Data), Java (Spring Boot), Ruby on Rails.

• Databases: PostgreSQL & MySQL (Relational), MongoDB (No-SQL).

• Data Science: DataWarehouse, Data Mining, AI Solutions.

• DevOps: Git, Docker, Linux Server Admin & Hardening.

• Microcontrollers: ESP32/8266, PIC (C++/Assembler), ATMega.

• Hardware Design: KiCAD, Sprint Layout, PCB Design.

• Offensive Security: Pentesting (Kali/Parrot), Digital Forensics.

• Defensive Security: Data Encryption, Server Hardening, Cloud Security.

Resume

Below is an overview of my core education, advanced training, and professional journey as an engineer. You can also download my full Resume in Spanish or in English.

Education

Master's in Cybersecurity

2025 - 2026

CEUPE (European Graduate Center). Madrid, Spain.

Specialized in Pentesting, Cloud Security, and Digital Forensics. Focus on protecting critical infrastructure and ensuring data integrity.

B.S. in Computer Engineering

2014 - 2018

Andrés Bello Catholic University (UCAB). Caracas, Venezuela.

Additional Education

Diploma in Artificial Intelligence

2025

EGCI Management School

React Native Bootcamp

2018

Hezion Studios

Digital Forensics Course

2017

Lazarus IT Research Center

Professional Experience

Full Stack Engineer & Security Consultant

2022 - Present

Freelance / Independent Consultant

Designed and deployed native cross-platform mobile apps (Android/iOS) using Flutter, optimizing performance and UX/UI.
Engineered secure RESTful APIs with Node.js and Python, integrating Deep Learning services for advanced data analysis.
Developed custom hardware solutions using ESP32/PIC microcontrollers, connecting physical devices with cloud infrastructure (Trackify).
Conducted penetration testing (Pentesting) and digital forensic analysis to ensure the integrity and security of mission-critical client data.

Mid-Senior Full Stack Developer

2019 - 2022

MGS Consultores. Caracas, Venezuela.

Led the development and maintenance of web platforms using Vue.js and Node.js, significantly improving system responsiveness.
Managed Linux servers and advanced NGINX configurations, ensuring high availability for critical web services like Telemedi.
Designed and optimized relational databases in PostgreSQL, restructuring them to handle massive data loads efficiently.

Developer Analyst

2018 - 2019

Ubii Pagos. Caracas, Venezuela.

Contributed to the development of Fintech payment solutions (VApp), focusing on secure transaction processing and mobile wallet integration.
Collaborated in the implementation of layered security protocols for native Android financial applications.

Portfolio

A curated selection of my key technological projects. Several are successfully in production, while others are in advanced stages of their lifecycle. Together, they demonstrate that innovation thrives on complex challenges.