Portfolio

Nabiel Alfallah Herdiana

Data Analyst | Business Operations | Marketing Insights

Transforming data into actionable insights that drive business growth and strategic decision-making.

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10+ Projects
3+ Years Experience
19+ Tools Mastered
01

Introduction

I am a Statistics undergraduate with a strong interest in transforming data into clear, meaningful, and actionable insights.

My academic background has equipped me with solid foundations in statistical analysis, data modeling, and quantitative reasoning, while my hands-on experiences have strengthened my ability to communicate insights through effective visualizations and storytelling.

I enjoy working at the intersection of data, design, and decision-making, where analytical rigor meets clarity, creativity, and impact.

Education

Universitas Padjadjaran

Bachelor's Degree in Statistics

2023 – Present

3.83 / 4.00 GPA
Nabiel Alfallah Herdiana
02

Skills & Tools

Data & Analytics

PythonPython
RR
MySQLMySQL
TensorFlowTensorFlow
Data StudioData Studio
TableauTableau
ExcelExcel
SPSSSPSS
MinitabMinitab
Google SheetsGoogle Sheets
MariaDBMariaDB
phpMyAdminphpMyAdmin

Web Development

HTML5HTML5
CSS3CSS3
JavaScriptJavaScript
PHPPHP
StreamlitStreamlit
CloudflareCloudflare

Design & Media

FigmaFigma
CanvaCanva
PhotoshopPhotoshop
After EffectsAfter Effects
Premiere ProPremiere Pro
FL StudioFL Studio
CapCutCapCut
WordWord
Google DocsGoogle Docs
PowerPointPowerPoint

Other Tools

GitGit
GitHubGitHub
VS CodeVS Code
AntigravityGoogle Antigravity
Google ColabGoogle Colab
JupyterJupyter
03

Experience

Professional Experience

Climate Data Analyst Intern

Indonesian Agency for Meteorology, Climatology, and Geophysics (BMKG) Aug 2026 – Present
  • Analyzed historical and projected rainfall characteristics in West Java using multi-model NEX-GDDP-CMIP6 climate projections under SSP2-4.5 and SSP5-8.5 scenarios.
  • Processed and analyzed daily gridded climate data using Python and Google Earth Engine, including rainfall, SST, and climate indices.
  • Developed climate indicators for dry-season and extreme-rainfall analysis, including wet days, extreme rainfall thresholds, and seasonal characteristics.
  • Derived and validated daily Niño3.4 and Dipole Mode Index (DMI) from NOAA OISST data against reference climate indices for use in daily rainfall modeling.

Corporate Social Responsibility Intern

PT Astra International Tbk Mei 2026 – Jul 2026
  • Managed and validated DSA and assisted-school databases through metadata checking, duplicate correction, regional validation, and province/island-level summaries for CSR monitoring.
  • Built Excel/PPT dashboards, trackers, and reporting materials for DSA operations, including monitoring 1500++ DSA, mapping program pillars, and preparing education/MSME/regional data slices.
  • Coordinated with DSA facilitators, local champions, vendors, and internal teams to collect program data, documentation, invoices, product information, and logistics requirements.
  • Supported CSR events and MSME market access initiatives, including SMK BISA finalization, teacher bootcamp/ToT preparation, and MASA Singapore exhibition product listing and shipment coordination.

Founder & Digital Marketer

Nabiel Store Aug 2018 – Present
  • Founded and independently managed an online digital top-up business, processing 2,500+ transactions and generating IDR 100 million in total turnover within the first three years.
  • Built strong customer trust across platforms, achieving a 5.0/5.0 rating on Itemku with 390+ five-star reviews and a 4.9/5.0 rating on Shopee with 2,200+ reviews.
  • Managed end-to-end sales operations, converting 1,000+ leads through structured pipeline management, targeted customer service, and digital marketing.

Econometrics Laboratory Assistant

Statistics Unpad Aug 2025 – Dec 2025
  • Mentored 67 undergraduate students in econometric modeling, regression analysis, statistical computation, and interpretation using R and Advanced Excel.
  • Provided weekly one-on-one consultations and practical guidance, achieving an 85% student satisfaction rate.

Data Visualization

Dr. Hasan Sadikin General Hospital (RSHS) Bandung Jun 2024 – Jan 2026
  • Transformed survey reports from 500+ respondents into an 80-page executive-level infographic booklet for top hospital management.
  • Redesigned 15+ analytical charts into more compelling visual formats to support data-driven decision-making.
  • Produced visual reports that consistently achieved 80%–85% stakeholder satisfaction across multiple survey batches.

Statistical Agent

Pojok Statistik BPS-Statistics Indonesia Mei 2025 – Oktober 2025
  • Conducted SPSS analysis (normality tests, Pearson & Spearman correlations, and Canonical Correspondence Analysis) on ecological datasets involving 56+ insect species and environmental variables.
  • Designed 1 educational infographic “Makan Bersisa, Bumi Menderita” on household food waste and environmental impact.
  • Co-authored 1 peer-reviewed journal article using multiple linear regression on per capita expenditure in West Java 2024.

UI/UX Web Designer

Department of Statistics Unpad Oct 2024 – Dec 2024
  • Redesigned and optimized the UI/UX of an institutional website to improve usability, information hierarchy, and user experience.
  • Created 15+ wireframes and interactive prototypes aligned with stakeholder needs and institutional branding.
  • Delivered a final design system with an estimated 95% stakeholder satisfaction rate.

Organizational & Professional Development Experience

Data Scientist Cohort Coding Camp 2026

Powered by DBS Foundation Feb 2026 – Jul 2026
  • Participated in a selective 900+ hour national tech training program focused on Python, SQL, and foundational machine learning.
  • Built practical data science portfolios in predictive modeling and dataset analysis.

Director of Graphic Design

Jatinangor Research Center 2026 Feb 2026 – Present
  • Led the creative team of 6 associates in producing research documentation materials and promotional assets.
  • Ensured alignment with institutional branding to strengthen digital presence.

Head of Design & Documentation

Statistics Day 2025 Jan 2025 – Dec 2025
  • Led a cross-functional team of 8 members to execute visual strategy and digital campaigns for a national-scale academic event.
  • Oversaw the production of 160+ visual assets, reaching 2.6 million digital impressions.

Media Information

BEM Kema Unpad 2024 Mar 2024 – Jul 2025
  • Documented 10+ official organizational events through photography and video production.
  • Created an official company profile for BEM Kema Unpad 2024.
04

Projects

01

Database-Driven Website

Full-stack web application with a properly normalized relational database (up to 3NF). Features complete CRUD operations, ERD design, and efficient table relationships built from scratch.

SQLPHPMySQLERD
View Project →
02

E-Commerce Sales Dashboard

Interactive analytics dashboard revealing monthly sales trends, order patterns, and revenue insights. Implemented RFM segmentation to identify VIP customers and churn risks for targeted marketing strategies.

StreamlitRFM AnalysisPythonPandas
View on GitHub →
03

HIV Surveillance Dashboard

Comprehensive public health surveillance tool for West Java (2019–2023). Interactive maps, trend charts, and KPI cards to monitor HIV incidence rates, mortality, case fatality rates, and identify high-risk regions.

R ShinyGISPublic HealthLeaflet
View on RPubs →
04

Pneumonia Dashboard DKI Jakarta

Epidemiology analytics platform tracking Pneumonia cases across DKI Jakarta (2017–2024). Spatio-temporal analysis with interactive visualizations to identify outbreak patterns and high-risk areas.

R ShinyEpidemiologyData Vizggplot2
View on RPubs →
05

Cat Breed Classification

Deep learning image classifier that identifies cat breeds using EfficientNetV2-S with transfer learning. End-to-end ML pipeline from data preprocessing to model deployment with high accuracy results.

Deep LearningTensorFlowPythonCNN
View on GitHub →
06

SDG Data Mining Analysis

Machine learning analysis on global child mortality and immunization data (SDG 2023). Applied K-Means clustering, PCA dimensionality reduction, and SVM classification achieving 88% accuracy with geospatial insights.

Machine LearningPCAK-MeansSVM
Open in Colab →
07

Infographics Design

Data storytelling through compelling visual design. Created infographic booklets for hospital surveys, transforming complex satisfaction metrics into digestible insights for stakeholders.

InfographicsCanvaData Storytelling
08

UI/UX Website Redesign

Complete UI/UX overhaul of the Department of Statistics website. Designed wireframes, interactive prototypes, and a cohesive design system to improve user experience and visual consistency.

UI/UXFigmaPrototypingDesign System
09

VoiceScribe AI

Real-time voice transcription tool powered by Deepgram's Nova-3 model with automatic speaker diarization. Features stealth mode for interviews, supports Indonesian & English, and saves timestamped transcripts. Perfect for interview practice and meeting notes.

PythonDeepgram APISpeech-to-TextAI
View on GitHub →
10

MyChat — Chat Wrapped

Transform your WhatsApp chat exports into beautiful "Spotify Wrapped" style analytics. 100% client-side processing ensures complete privacy — your data never leaves your browser. Discover who texts the most, emoji patterns, and conversation insights.

JavaScriptPrivacy-FirstData VizAnalytics
Try Live Demo → View on GitHub →
05

Publications

Academic Publications

Nonparametric Statistical Methods in Analyzing the Impact of COVID-19 on Poverty Levels in Indonesia

Published in Jurnal Lebesgue →

Penerapan Regresi Logistik Multinomial pada Pemodelan Pemilihan Layanan Kesehatan Berdasarkan Faktor Sosioekonomi dan Demografi di Indonesia

Published in BIAStatistics Journal of Statistics Theory and Aplication →

Music & Creative

Rearrangement of Mars Himasta and Hymne Statistika

Listen on Drive →

Kejar Mimpi — Official Soundtrack for Statistics Day 2025

Stream Now →

The Art of Life

Full Album →
06

Contact

Let's connect and create something amazing together.

Phone 0821-2964-4120
Email nabielah41@gmail.com
LinkedIn Nabiel Alfallah Herdiana
GitHub nabielherdiana
Instagram @nabielherdiana
WhatsApp Chat with me