Mayank Gajwe

Data Engineer • Software Developer • Music Producer

I'm a data engineer and software developer based in Mumbai, with a focus on building scalable systems that bridge data, automation, and clean design. I enjoy working at the intersection of technology and creativity — whether it's optimizing pipelines or designing intuitive digital experiences.

Outside of work, I explore music production and creative coding as a way to experiment with structure, rhythm, and interaction. I'm also actively studying Japanese (JLPT N4) to expand my global communication and collaboration skills.

Projects Music

Projects

Re:Playlist

RePlaylist is a data engineering project that archives public Spotify playlists over time. It captures playlist snapshots daily and stores them in a local PostgreSQL database, enabling historical analysis of track additions, removals, and trends.

Fetches metadata from public Spotify playlists using the Spotify API.
Transforms and stores data with timestamped snapshots.
Airflow DAG automates daily ingestion.
Modular ETL design with clear separation of fetch, transform, and load steps.
Scalable PostgreSQL schema for efficient time-series playlist tracking.

Nian - Discord Chat Bot

Nian is a versatile, self-hostable AI chatbot built for Discord servers. It supports fun, utility, and media commands, integrating APIs for Spotify, cryptocurrency, anime, and more. Designed with modularity in mind, Nian is lightweight, easy to deploy, and extendable for custom community use.

AI-Driven Commands – Supports fun responses based on locally trained GPT-J 2020 version.
Media & Info Tools – Fetches data from Spotify, MyAnimeList, Crypto APIs, and more.
Image Upload & URL Tools – Upload to Imgur, shorten links, or get avatars instantly.
NSFW & Safe Modes – Commands grouped by usage category, customizable by server.
Modular Command System – Easy to extend with new features via simple .js files.

HomeLab Automation

This project documents my hands-on implementation and experimentation with a self-hosted media and cloud infrastructure on Ubuntu Server 24.04 LTS. It integrates Docker and Kubernetes to orchestrate open-source services for media management, DNS privacy, and personal cloud storage — built and tested in my own home environment.