I am Rafli A., an Information Technology and Systems Education student at the Indonesia University of Education with an interest in full-stack web development, data analytics, and evidence-based digital product development.

My work focuses on building maintainable web systems, translating data into practical insights, and designing applications that are both technically reliable and useful for real-world learning or operational contexts. I approach software development as an iterative process: define the problem, build a measurable solution, evaluate the result, and refine the system.

Current orientation: software engineering, data processing, analytical dashboards, and research-informed web applications.

Fundamentals & Programming Languages

Web Engineering

Data Processing & Analytics

Development Infrastructure

Full-Stack Web Development

• Frontend: React, optional Next.js, Tailwind CSS, React Hook Form
• Data fetching: TanStack Query
• Backend: Node.js, Express, NestJS, or Next.js API routes
• Database and ORM: PostgreSQL with Prisma
• Validation and authentication: Zod, NextAuth, or Passport
• Deployment: Vercel, Railway, and container-based workflows

Data Analytics

• Notebook-based exploration: Jupyter, Python, pandas, Polars
• Lightweight analytics storage: SQLAlchemy, DuckDB, PostgreSQL
• Visualization: Plotly Express, Seaborn, Chart.js
• Dashboarding: Streamlit
• Exploratory analysis: profiling, descriptive statistics, and interpretable reporting

• Clarity: technical decisions should be explainable, documented, and reproducible.
• Reliability: applications should be tested, maintainable, and resilient to common failure cases.
• Measurement: development progress is strengthened by data, feedback, and observable outcomes.
• Learning: every project is an opportunity to improve both implementation quality and conceptual understanding.

"The only way to learn a new programming language is by writing programs in it."
Dennis Ritchie