Portfolio

Nabiel Alfallah Herdiana

Data Analyst | Business Development | 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 final-year Statistics undergraduate at Universitas Padjadjaran (GPA 3.79/4.00) 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

3.79 / 4.00 GPA
Nabiel Alfallah Herdiana
02

Skills & Tools

Data & Analytics

PythonPython
RR
MySQLMySQL
TensorFlowTensorFlow
Power BIPower BI
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

Founder & Digital Marketer

Nabiel Store Aug 2018 – Present
  • Founded and managed an online digital top-up business that achieved IDR 100 million in total turnover within the first three years through targeted outreach and consistent customer engagement.
  • Built strong customer trust across multiple platforms, achieving a perfect 5.0/5.0 rating on Itemku (390+ reviews) and 4.9/5.0 on Shopee (2,200+ reviews).
  • Handled full end-to-end operations including lead generation, sales pipeline management, order processing, customer service, and digital marketing.
  • Developed structured customer tracking systems to support repeat sales and business growth.

Laboratory Assistant — Econometrics

Universitas Padjadjaran Aug 2025 – Dec 2025
  • Mentored and assisted 67 undergraduate students in econometric modeling, statistical computation, regression analysis, and result interpretation using R and advanced Excel.
  • Provided one-on-one consultations and structured lab guidance, achieving approximately 85% student satisfaction rate.
  • Supported practical sessions focused on diagnostic testing and clear interpretation of statistical outputs.

Data Visualization & Infographics Team

RSHS Satisfaction Surveys Jun 2024 – Jan 2026
  • Transformed preliminary analytical reports and basic graphs into a comprehensive, executive-level infographic booklet tailored for top hospital management.
  • Collaborated under the guidance of a supervising professor to accurately visualize large-scale survey data regarding hospital service quality and satisfaction levels.
  • Enhanced data storytelling by redesigning simple charts into compelling visual layouts, enabling decision-makers to easily identify key operational improvement priorities.
  • Delivered high-quality visual reports that consistently achieved stakeholder satisfaction scores of 80%–85% across multiple survey batches.

Statistical Agent

Badan Pusat Statistik (BPS) Apr 2024 – Nov 2025
  • Conducted rigorous national-level data collection and analysis for demographic and economic datasets.
  • Provided statistical consultation to academic researchers and external clients on data processing, methodology selection, and result interpretation.
  • Designed and delivered training materials to improve statistical literacy for non-technical audiences.

UI/UX Web Designer

Department of Statistics Oct 2024 – Dec 2024
  • Redesigned and optimized the department website's UI/UX to improve usability, information hierarchy, and overall user experience.
  • Created wireframes, interactive prototypes, and design systems aligned with stakeholder needs and institutional branding.
  • Delivered final prototypes that received an estimated 95% stakeholder satisfaction rating based on direct feedback.

Professional Development Experience

Data Scientist

Coding Camp 2026 Powered by DBS Foundation Feb 2026 – Present
  • Participated in a highly selective, 900+ hour national tech training program focused on Data Science, earning industry-standard Dicoding competency certificates.
  • Completed structured modules on Python programming, SQL, foundational Machine Learning, data analysis, visualization, and real-world projects.
  • Developed soft skills including personal branding, financial literacy, and business English enhancing overall professional readiness.

Organizational Experience

Director of Graphic Design

Jatinangor Research Center 2026 Feb 2026 – Present
  • Direct visual strategy and creative production for research documentation, promotional materials, and digital assets.
  • Ensure all designs align with institutional branding and support the center's digital presence.

Head of PDD Division

Statistics Day 2025 Jan 2025 – Dec 2025
  • Led visual strategy and digital campaign execution for national-scale academic events.
  • Managed a team of 8 members and produced 160+ visual assets, generating 2.6 million digital impressions across platforms.
  • Oversaw content planning, design, and documentation workflows from concept to final delivery.

Media Information

BE Himasta FMIPA Unpad 2025 Jan 2025 – Dec 2025
  • Handled photo, video documentation, and content production for organizational activities.
  • Developed official company profiles and visual materials for cross-department communication and institutional branding.

External Relations

Forum Ukhuwah Studi Islam 2025 Jan 2025 – Dec 2025
  • Spearheaded external outreach initiatives, organizing comparative study programs to facilitate knowledge exchange.
  • Coordinated community-focused social service events (bakti sosial) and facilitated stakeholder engagement forums.

Education, Technology & Innovation Team

MIPA Mengabdi 2025 Jul 2025 – Aug 2025
  • Performed needs analysis using Training Needs Analysis principles in local communities.
  • Designed and delivered tailored educational programs for students from PAUD to SMA level.

Media Information

BEM Kema Unpad 2024 Mar 2024 – Jul 2025
  • Documented 100% of official BEM activities through professional photography and video production.
  • Created the official Company Profile of BEM Kema Unpad 2024.

Operational Team

ASEAN Youth Initiative Conference (AYIC) 2024 Jul 2024 – Oct 2024
  • Managed technical coordination and livestream operations using OBS for large-scale virtual sessions.
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 →
11

RAM Cleaner

A portable and lightweight Windows memory optimizer built with C++ to free up system resources and enhance performance.

C++WindowsMemory Optimizer
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 →

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

Certifications

Professional Training & Certifications

  • Data Science & Analytics Core: Machine Learning, Data Visualization, SQL, Python (Dicoding, 2025-2026)
  • Product & Project Management: Agile, Scrum, Product Management Fundamentals (IBM & UMD, 2026)
  • Digital Marketing: Digital Marketing Analytics: Tools and Techniques (USM, 2026)
  • Leadership & Communication: Exercising Leadership, Rhetoric (HarvardX, 2025)
  • Business Intelligence: Data Visualization with Excel, Cognos, and Power BI (IBM & Davidson College, 2025)
  • Cloud Computing: AWS Certifications (Amazon Web Services, 2023)

Awards & Achievements

  • Favorite Work Award - Poster Infographic Competition PAKUAN (2025)
07

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