Data Analyst | Cybersecurity Enthusiast | Software Developer
I’m passionate about turning data into insights, building web & mobile solutions, and exploring the future of cybersecurity and AI security.
- Data Analysis & Visualization – SQL, Python (Pandas), Excel (VBA), Power BI, Tableau
- Web & Mobile Development – HTML, CSS, JavaScript, Jekyll, GitHub Pages, Android (Java)
- Cybersecurity & Security Practices – Ethical Hacking (Cisco), Linux CLI, cryptography, secure authentication
- Automation & APIs – Firebase Realtime Database (JSON), REST APIs, GitHub Actions
- Data Analysis Portfolio – SQL queries, dashboards, and business insights with Power BI & Tableau
- Android Apps
- Event Organizer: secure QR authentication with hashed data + Firebase Realtime DB (JSON)
- Restaurant Service App: orders and authentication with Firebase
- Portfolio Website – Built with Jekyll + GitHub Pages → manuelnajera.github.io
- Excel VBA Automation – Macros to optimize workflows and automate reporting
- Languages: Python, SQL, Java, JavaScript, HTML, CSS
- Frontend Development: Vanilla JS, jQuery, responsive design (The Odin Project)
- Data Tools: Excel (VBA), Power BI, Tableau, Pandas, matplotlib
- Databases: MySQL, PostgreSQL, Firebase (Realtime DB – JSON)
- Security & APIs: Cryptography (hashing, secure QR codes), REST APIs, Firebase Authentication
- Dev & Collaboration Tools: Git, GitHub, GitHub Actions, Jekyll, Markdown, Slack, Trello, Jira
- OS: macOS (expert), Windows (expert), Linux (advanced)
- Google Data Analytics Professional Certificate – Coursera (In Progress)
- Cisco Ethical Hacker Certification – Cisco Networking Academy (In Progress)
- The Odin Project (Frontend completed, backend path in progress: Node.js).
Long-term focus: Ethical Hacking, AI Security, and Secure Software Development.
- Portfolio: manuelnajera.github.io
- LinkedIn: www.linkedin.com/in/manuel-a-najera
Always open to collaboration and building secure, data-driven solutions.