A resilient email delivery backend system built as part of the PearlThoughts internship challenge.

Node.js background job processing system with BullMQ, Redis, PostgreSQL, retries, delayed jobs, worker-based async processing, and CI

Next In Line: A zero-manual-intervention hiring pipeline that replaces spreadsheets with a deterministic, capacity-bounded queue system. Built with the PERN stack.A self-healing hiring pipeline featuring atomic capacity enforcement, deterministic queue ordering, and automated inactivity decay via PostgreSQL row-level locking.

A Discord bot to manage respawn queues for Tibia players.

A scalable Node.js server for merging multiple images into a single image. Built to handle image processing tasks that are difficult to execute in AWS Lambda due to memory, time, and binary dependency constraints. Features a queue system for handling concurrent requests, watermark support, and flexible output options (Buffer or Base64).

A feature-rich, customizable Discord music bot built with Node.js and discord.js. Supports YouTube, Spotify, and more, with advanced queue and playback controls, admin features, and easy configuration. Uses Lavalink with advanced plugins for high-quality audio streaming.

⚡ High-performance queue system built with Bun runtime, Drizzle ORM, and PostgreSQL - handles cinema schedules, lottery data, LINE bot integration with automated conflict resolution and duplicate management

Scalable Todo API with background queue processing and race condition prevention

Production-grade benchmark comparing PostgreSQL scheduler patterns: 845ms → 3ms using partial indexes, advisory locks, and SKIP LOCKED. 500k URL simulation with real production patterns.

Async backend system for transforming compliance policies into structured checklists with AI, retry logic, and failure safe design