Apurbalal Singha

PENTA is a "Music Adventure Game" in which the game progresses through music playback. You can discover the PENTA STONE by listening to music and growing your own headphones. At Penta, I developed their mobile and web apps.

Soon after graduating in India, I moved to Japan to work as a software developer. While in Japan, I noticed that websites or services did not provide good information about dietary-specific restaurants and their menu items.

Even if we search for vegan or vegetarian restaurants using the existing websites in the market, it's still very difficult to find detailed menu information. None of these websites lets us search restaurants by food name or description. Thus, the only option is to go through the restaurant's official website or call each restaurant directly. This is important because, in Japan, many menu items are said to be vegetarian, yet they often contain animal fat.

All these problems led me to the idea of Pawllet. This platform provides detailed menu information of dietary-specific restaurants, and users can search restaurants by food name, description, location, etc.

An Android and iOS mobile app that provides users with a platform to share their knowledge and help each other learn something new daily. The app has various use cases, including:

• Preparation questions, theories, or tips to help students prepare for the joint entrance examination
• Popular interview questions to help users learn and prepare for interviews
• Science facts, general knowledge, and more

Developed an Android game in Unity. This is a 2D action-paced game developed in Unity 2D. The sprites are created in Figma and animated in Unity Sprite Animation. The game got more than 10,000+ downloads on Play Store.

Developed infinite 3D runner game in Unity. The character and environment are designed using Blender and Adobe Photoshop. The environment is randomly generated, creating a unique gaming experience. Developed this game in the India Hacks HackerEarth and received 13th position all over India.

Developed an iOS app that lets users scan their point cards and save them in the app. The users can redeem the points just by showing the app without the hassle of carrying physical point cards.

MVC architecture: developed the app using the MVC architecture pattern.

Firebase: used Firebase for authentication and storing user and point card data.

An infinite running android game where the player has to tap the phone screen to clear the obstacles. The player also need to collect coins on the go and they can buy characters, change weather and unlock new levels using the collected coins.

Created using Unity 3D, Photoshop, and Blender.

• Developed incentive service on the Mercari website, which is used to give coupons to users for promotions.
• Created an offer to Liker and made an offer for sellers and buyers to increase sales.
• Developed a return flow through which buyers could return their items.
• Improved Mercari website build speed by five times and improved deployment.
• Migrated the codebase from Flow to TypeScript language to meet industry standards.
• Moved the chat service from a PHP codebase to a modern web tech stack codebase. Added more features such as offers and system admin messages.
• Managed sprint planning, grooming, and retrospective meetings as a scrum master. Helped the team to achieve good team velocity and complete more tasks.

• Developed a web marketplace to buy NFT headphones by connecting with a crypto wallet.
• Developed a React Native app that tracks songs played in the background in iOS and Android and gives users awards in the form of Penta Stones.
• Wrote native modules to share background music information between native code and React.
• Set up Google Cloud Platform and Sentry to track errors and their cause.

• Migrated chat service from React Native to the native codebase, currently used by millions of buyers and sellers monthly,
• Developed a user tracking feature in the app to track user interactions.
• Tracked and fixed bugs in the Android app and used Jira to report and track issues.