Coding Portfolio

Kalenda is a smart WhatsApp-based assistant

powered by OpenAI's LLM and Google

Calendar API integration, to help busy

individuals and families manage their

schedules effortlessly. It uses natural language

understanding to make event tracking

as easy as sending a message.

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• Add events simply by texting things like:  

     "Mary’s ballet recital Saturday 3PM

      at Kemang Village"

• Forward a photo or screenshot of an

      event invitation — Kalenda will extract

      event info automatically

• Don’t feel like typing? Send a voice note — Kalenda transcribes and schedules it for you

• Kalenda is able to fetch and summarize your existing calendar events and find your availability based on your current calendar slots

• Use Kalenda’s shared calendar to try things out without needing to connect your own

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Try it out: 

• ​wa.me/12342616270 or 

• https://kalenda.id/

Instant is a chatbot powered by a Large Language Model (LLM) using a Retrieval-Augmented Generation (RAG) approach to provide fast and contextual answers to questions about immigration procedures in Indonesia, including visas, residence permits, and general regulations based on publicly available information in Indonesia immigration official website

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• Available on WhatsApp & Web

• Multilingual (mainly Bahasa Indonesia and English, but it can also serve several other languages)

• Retains contextual memory but only within one session (so we can ask follow-up questions), and

• Implements feedback loop: saves user feedbacks along with the last question being asked and the bot's answer (no user identifications) to be used in the future for fine tuning.

• Only scoped around Indonesian immigration topics (Indonesian passport, affidavit, work permit or PR in Indonesia, Indonesian visa, KITAS)

• Does not include foreign affairs like US student visa, foreign work permit, Schengen visa, etc.

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Try it out: 

• ​wa.me/12344234277 or 

• https://tinyurl.com/instantbot

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An image classifier using an Artificial Neural Network (ANN) with CNN layers, to recognize the type of recyclable materials (e.g., plastic, glass, metal) from photos.

Utilizing CNN Computer Vision with Tensorflow, trained a model using pre-trained MobileNetV2. The goal is to assist users and machines in identifying the correct category to dispose recyclables.

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Dataset Source: Garbage Classification, Kaggle​​

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Try it out: https://tinyurl.com/recyclecnn

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A feature to approve money disbursements through multiple layers of user approvals. This feature allows users to:

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• Modify approval layers configuration

• Add or remove users as 1st or 2nd layer approver

• Allow users with correct approval credentials to approve disbursement

• Allow users to receive notification of disbursement approvals

A mobile app with receipt recognition & financial chart analytics. Track your personal finance, set monthly spending target, and earn badges.

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• View, add, edit, and delete daily spending / income records

• View periodic income & expense summary, broken down by category

• See month-on-month charts & analytics

• Set monthly target

• Scan receipts

• Earn achievement badges

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A mobile-responsive web-app containing list of limited classical musics and its song preview. Uses Spotify API to fetch playlist data

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• See top 20 classical music playlists from Spotify & filter by playlist name

• Add to favourites (not stored in database)

• See playlist details & listen to playlist song clips

• Browse albums by top composers

A review / community web app for founders to add review for potential investors.

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• View and add new review

• As a founder, request to register new investor

• Receive confirmation if investor has been approved by admin

• View translated reviews from over 5 different languages

• Comment on reviews​

A simple mobile single-player sudoku game.

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Backend API from suGOku (https://github.com/bertoort/sugoku)

A simple solo ping-pong game. Playable in Desktop only.

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• Solo Pong is a solo ping-pong game in which player competes with time.

• Player needs to keep the ball in the game area as long as the timer still runs. If player succeed to keep the ball within the game area throughout the alloted time, player wins. If the ball runs outside of the game area before the time is up, player loses

A web app with complete CMS / Dashboard display format, to manage movie database with quick login/register, view, add, edit, and delete features

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• Quick Login / Register with Google Account

• View, add, edit, and delete movie database based on user permission

A web-app built with microservice concept, to manage list of entertainment/films, with basic view, add, edit, and delete features.