Alejandro Dos Santos Fernandez
Summary
Dynamic and versatile bilingual full-stack and firmware developer with a Bachelor’s degree in Automatic Engineering. Skilled in C/C++, Python, and JavaScript, with extensive experience developing embedded systems using PIC microcontrollers, ESP32, and Arduino. Strong background in designing and maintaining scalable backend and frontend applications with Vue.js, NestJS, and Express, as well as managing databases like PostgreSQL and MongoDB. Proficient in leveraging AI tools such as ChatGPT and GitHub Copilot to improve coding efficiency, debugging accuracy, and documentation. Committed to delivering innovative, reliable, and high-performance solutions.
Overview
2026
2026
years of professional experience
Work History
Freelance Web & Firmware Developer
Self-Employed
2023 - Current
- Built websites and landing pages with WordPress/Elementor, including bilingual features.
- Developed ESP32/Arduino firmware (GPS dashboards, Bit simulation engine).
- Integrated IoT projects for solar power monitoring (Victron MPPT).
- Collaborated with clients on technical consulting and digital tools.
- Leveraged AI tools (ChatGPT, GitHub Copilot, Notion AI) to accelerate coding, debugging, and documentation.
Water Restoration & HVAC Technician
Blackhill Restoration
01.2023 - 08.2025
- Performed water damage restoration including extraction, drying, and structural cleanup to ensure safe and efficient recovery.
- Conducted HVAC system maintenance and basic repairs, improving system efficiency and air quality.
- Operated professional tools and monitoring equipment to ensure compliance with safety and industry standards.
- Collaborated with restoration teams to complete projects on time while maintaining client satisfaction.
Developer
Science Park
01.2021 - 01.2022
- Designed and implemented a VueJS web application to manage agricultural machinery, users, and field reports.
- Collaborated with a cross-functional team to optimize data visualization and reporting tools, improving decision-making for end users.
Lead Development Specialist
CENPALAB
01.2019 - 01.2022
- Led the development and maintenance of applications using C/C++, Qt, VueJS, and NodeJS for national-scale precision agriculture projects.
- Designed solutions for real-time data monitoring and analysis, increasing operational efficiency.
- Supervised junior developers and coordinated code reviews, testing, and deployment processes.
Education
Bachelor of Science - Automatic Engineering
José Antonio Echeverría Higher Polytechnic Institute (CUJAE)
Habana, Cuba06-2019
Skills
- Languages: C/C, Javascript, Python
- Frameworks & Platforms: VueJS, Quasar, Qt, NestJS, Express
- Database: PostGreSQL, MongoDB, MySQL (basic)
- Infrastructure & Tools: Docker (basic), Railway, PlatformIO, Arduino
- Versions Control: Git, GitHub
- Operating Systems: Windows, Linux
- AI Tools: ChatGPT, GitHub Copilot, Notion AI
Language Proficiency
Spanish
Native or Bilingual
English
Professional Working
Timeline
Water Restoration & HVAC Technician
Blackhill Restoration
01.2023 - 08.2025
Developer
Science Park
01.2021 - 01.2022
Lead Development Specialist
CENPALAB
01.2019 - 01.2022
Freelance Web & Firmware Developer
Self-Employed
2023 - Current
Bachelor of Science - Automatic Engineering
José Antonio Echeverría Higher Polytechnic Institute (CUJAE)