Hi, I'm Marnel.
About
I am Mhar Nhel Valentin, a 25-year-old web developer and data science enthusiast currently pursuing a Master of Science in Data Science. I hold a Bachelor of Science in Information Technology and have extensive experience building full-stack web applications. My skill set spans modern web technologies, backend APIs, and data analysis — including forecasting and exploratory analysis using Python with Jupyter and R with RStudio. I also practice AI-assisted development using tools like Claude Code, Cursor, and Codex — leveraging AI to ship faster and smarter.
Experience
Stack
React+React Native+Next.js+JavaScript+Typescript+Node.js+FastAPI+Python+Jupyter+R+RStudio+Data Analysis+Forecasting+PostgreSQL+MySQL+MongoDB+Firebase+Appwrite+Docker+NGINX+Apache+PHP+Redux+Zustand+Tanstack Query+Claude Code+Cursor+Codex+Figma+Photoshop+MS Office Suite
Selected Work
A handful of things I've shipped — full-stack web apps, platforms, and a couple experiments. Click any card to learn more.
Trainings & Certifications
After graduating, I joined training programs to deepen my software engineering and cloud computing fundamentals.
- B
Basic Software Engineering
Remote (Cast LMS)
Learned the basics of software engineering and development. - I
Intermediate Software Engineering
Remote (DICT Cast LMS)
Enhanced understanding of software engineering principles and practices, focusing on intermediate-level concepts. - A
Advanced Software Engineering
Remote (DICT Cast LMS)
Mastered advanced software engineering techniques and methodologies, preparing for complex project challenges. - B
Basic level of Cloud Computing
Remote (DICT Cast LMS)
Acquired foundational knowledge in cloud computing, including cloud service models, deployment strategies, and essential cloud technologies.
Contact
Have an idea?
Let's build it.
Want to chat? Shoot me a DM on Twitter or send an email. I'll respond whenever I can — I ignore all soliciting.




