https://github.com/zadanfai/zadanfai.github.io

Portfolio
https://github.com/zadanfai/zadanfai.github.io

Last synced: 6 months ago
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Portfolio

• Host: GitHub
• URL: https://github.com/zadanfai/zadanfai.github.io
• Owner: zadanfai
• Created: 2025-01-08T15:00:55.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-08-20T16:15:57.000Z (11 months ago)
• Last Synced: 2025-09-15T17:48:18.926Z (11 months ago)
• Homepage: https://zadanfai.github.io/
• Size: 1.64 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
 About Me


Hello Everyone! I am Zadan Fairuz Mahitala, an Informatics student with a strong foundation in data analysis, machine learning, and web development. I am dedicated to transforming complex datasets into impactful solutions using Python, TensorFlow, and advanced machine learning techniques.  

My academic and professional journey reflects a commitment to excellence and a passion for harnessing technology to solve real-world problems. From leading multidisciplinary projects to achieving certifications in cutting-edge technologies, I am driven to create innovative solutions that make a difference.  

Find my resume [here](https://drive.google.com/file/d/1jZQaveX0-NmQ--bp7Y-rX8daVzTN4hIe/view?usp=sharing)!

 Education


| Degree | Institution | GPA | Relevant Coursework |

| ------ | ----------- | --- | ------------------- |

| B.Sc. in Informatics | Universitas Singaperbangsa Karawang | 3.90/4.00 | Data Structure & Algorithm, Statistic, Artificial Intelligence, Data Mining, Business Intelligence, Big Data Analysis, Machine Learning, Deep Learning, Digital Image Processing, Embedded Intelligent Systems |

 My Professional Journey


**Machine Learning Cohort**  

| *Bangkit Academy led by Google, Tokopedia, Gojek, & Traveloka (Remote, Indonesia)* | September 2024 – January 2025

- Successfully passed the MSIB Bangkit 4636 cohort selection from over 45,000 applicants, with an acceptance rate of 10%.  

- Completed various Coursera Machine Learning courses, including CNN, NLP, Transfer Learning, and Time Series, achieving 100% progress.  

- Participated in all program activities with just one leave permission and earned 12 certifications within the designated timeframe.  

- Cleaned and prepared the Resume Dataset using CV parsers to enhance data accessibility and reproducibility.  

- Designed and trained two Neural Network models utilizing a pre-trained BERT model.  

**Data Analyst Student**

| *RevoU* | August 2022 – December 2024  

- Participated in MSIB 2023 - Kampus Merdeka program by the Ministry of Education, focusing on Data Analytics and Software Engineering.  

- *Software Engineering Courses:* Mastered advanced HTML, CSS, and JavaScript; AJAX & Restful API; animations; transitions; and full-stack integration.  

- *Data Analytics Courses:* Specialized in understanding business problems, EDA, SQL, Python for data analytics, BigQuery, and data visualization.  

- Enhanced professional growth through structured career development sessions.

 Work Experience Highlights 


- 🤝 **Cross-functional Collaborator:** Played a pivotal role in multidisciplinary teams, leveraging technical and analytical skills to bridge communication gaps between data scientists, engineers, and stakeholders for cohesive project execution.

- 💡 **Balanced Decision-Maker:** Known for balancing speed and quality in decision-making, particularly during high-pressure scenarios, ensuring timely delivery of data-driven solutions without compromising accuracy.

- 🌟 **User-Centric Innovator:** Spearheaded enhancements in user interfaces and functionality for machine learning models and analytics tools, resulting in a 25% increase in user engagement and streamlined workflows.

- 🔍 **Data-Driven Strategist:** Conducted in-depth analyses and delivered actionable insights through compelling dashboards and reports, enabling stakeholders to make informed business decisions aligned with organizational goals.

- 🧠 **Problem-Solving Pioneer:** Tackled data challenges by designing automated data pipelines and implementing optimized machine learning algorithms, reducing processing time by 40% and improving model reliability.

 Projects 


**FindUp: Bridging Tech Talent and Startups**  

  

  A capstone project developed as part of Bangkit Academy 2024. This mobile platform connects tech talents with startup founders, addressing challenges in collaboration and team dynamics.

  

    

  

  - Integrated TensorFlow, Keras, and a BERT-based model for enhanced talent matching.  

  - Achieved 89% accuracy in resume analysis and recommendation systems using NLP techniques.

_Challenge:_

Build a platform to connect tech talent with startup founders by automating CV analysis, scoring, and role matching, addressing inefficiencies in recruitment and enabling personalized recommendations.

_Action:_

- Designed a BERT-based regression model to score CVs (0–100) based on skills, certifications, degrees, and work experience, combining embeddings with dense layers for accurate predictions.

- Implemented an automated CV parsing pipeline to convert PDFs into structured JSON data for seamless model input.

- Built an unsupervised text similarity model to align candidates with startup roles such as Data Scientist or Product Manager.

- Collaborated with backend engineers to integrate models into the app, ensuring real-time inference using TensorFlow.js and preprocessing with Google Cloud Functions.

- Optimized data pipelines and trained models on scalable cloud infrastructure for reliability and performance.

_Result:_

- Reduced recruitment time by streamlining candidate prioritization and role matching, enabling startup founders to focus on top talent.

- Enhanced the platform’s personalization features, improving user engagement and satisfaction.

- Contributed to scaling Indonesia’s startup ecosystem by enabling AI-driven hiring solutions aligned with national digital transformation goals.

_Technologies:_

1. NLP Models: Pre-trained BERT, TensorFlow

2. Data Processing: JSON structuring, tf.data API

3. Cloud Services: Google Cloud Run, Pub/Sub, Cloud Functions, Vertex AI, JWT

4. Mobile Stack: Retrofit, Datastore, Gson, JUnit & Espresso, Fragment, Logging, Navigation, CircleImageViewglide,Lifecycle and ViewModel

Documentation: [Github Repo](https://github.com/Timnas-Bangkit)

**Real-Time Sign Language Detection**



    



_Challenge:_  

Develop a system that utilizes digital image processing and machine learning to recognize and interpret sign language gestures in real-time, aiding individuals with hearing impairments in inclusive communication.  

_Action:_  

- Utilized **TensorFlow Object Detection API** to create a real-time sign language detection model.  

- Collected 15 images for each of 5 sign language gestures: "hello," "yes," "no," "thank you," and "I love you."  

- Implemented a 6-step process:  

  1. Captured real-time images using a webcam and labeled gestures.  

  2. Converted datasets into TFRecord format for training and testing.  

  3. Applied transfer learning with a pre-trained **SSD MobileNet V2 FPNLite** model for fine-tuning.  

  4. Configured a model pipeline and trained it over 10,000 steps to enhance accuracy.  

  5. Restored the model checkpoint for real-time inference.  

  6. Developed functionality for real-time gesture detection via webcam.  

_Result:_  

- Achieved a high accuracy rate in detecting and interpreting sign language gestures.  

- Enhanced accessibility for individuals with hearing impairments by providing a scalable and inclusive communication tool.  

- Identified areas for future improvements, such as adapting to variations in sign language and improving model accuracy, to further support accessibility in technology.  

**Customer Cancellation Analysis for Resort Hotels**  

  

  Provided actionable insights to reduce cancellation rates and optimize revenue strategies for hotels.

_Challenge:_ Analyze and reduce hotel booking cancellation rates from 13–29% to 10% within a year while addressing revenue decline caused by customer cancellations.

_Action:_ 

- Data Cleaning: Processed raw datasets by handling null values, correcting data types, addressing outliers, and removing logical errors using Python.

- Exploratory Data Analysis (EDA): Performed linear regression and data analysis with Python and Google Sheets to understand trends and patterns.

- Visualization: Built insightful dashboards using Looker Studio to highlight trends in booking cancellations, ADR (average daily rate), and system performance.

- Root Cause Identification: Conducted an issue tree analysis to pinpoint factors contributing to cancellations, such as system delays, deposit policies, and lack of service updates.

- Recommendations & Policies: Suggested key improvements, including deposit requirements, improved system response times, and better customer communication.

_Result:_

- Identified high cancellation rates for bookings without deposits (49.29% for Resort Hotels and 49.14% for City Hotels in 2017).

- Proposed implementing deposit policies to lower cancellation rates.

- Provided strategies to optimize revenue by reducing lead times, increasing staff, and upgrading systems to improve service quality.

- Highlighted actionable insights for improving ADR competitiveness and minimizing cancellation impact.

_Additional Insights & Recommendations:_

- City Hotels can attract more customers by lowering prices by at least 9.4% and enhancing service quality.

- Resort Hotels should focus on promoting leisure travel to capitalize on their lower cancellation rates.

- Sending booking reminders and offering rescheduling options can reduce cancellations and enhance customer retention.

Google Colab Link: [Data Cleaning](https://colab.research.google.com/drive/1DD26w6VQpkK8pldMgbO3-JZbH2Yj2yzB?usp=sharing#scrollTo=eVPXcXPGA_c_)

 Skills & Certificates 


**Technical Skills**: Python, TensorFlow, SQL, Google Data Studio, NLP, Computer Vision, Data Analysis, Full-Stack Web Development.  

**Soft Skills**: Problem-solving, quick learning, attention to detail, team leadership.

**Certificates I Gain**: [here](https://drive.google.com/drive/folders/1BmpXp1669jzlLzwVwxZaSL4ECG_Qrldg?usp=sharing)

 🔗 Connect with me