Achhaya Pathak

Software Engineer  ·  Delhi, India

form PR-02  ·  things i have built

Projects

Every product that I've built, from tech demos to production systems — deep dives into problem, tech stack, and results.

JoinUp

Event discovery & social platform

no. PR-01
2025 - Present

A full-stack event marketplace for discovering, creating, and joining local events. Built with a microservices backend in TypeScript and a Next.js frontend. JoinUp provides a personalised feed of events to users based on their interests and preferences. For hosts, its an end-to-end booking management and verification solution.

  • Next.js
  • TypeScript
  • Python
  • PostgreSQL
  • Redis
  • Docker
  • AWS
In-Progress

Distributed Document Search

Production grade distributed search service

no. PR-02
2026

A working prototype of a distributed document search service demonstrating enterprise-grade architectural patterns including multi-tenancy, async processing, caching, and full-text search. The service is capable of searching a text among millions of files with a sub-200 ms speed.

  • TypeScript
  • Distributed Systems
  • Multi-tenancy
  • Elasticsearch
  • Kafka
  • Redis
  • AWS
Completed

Event Aggregation Engine

Event aggregation engine for event discovery platforms

no. PR-03
2026 - Present

An event aggregation engine for event discovery platforms. It aggregates events from various sources and returns them in a centralised location with a consistent format and structure using Agentic AI.

  • Python
  • Agentic AI
  • RabbitMQ
  • Firecrawl
  • Redis
  • VectorDB
In-Progress

Job Assist AI

AI tool for job applications

no. PR-04
2026 - Present

An AI tool to help with job applications. It takes your resume, crawls the internet for relevant jobs for you, extracts the most important details from job descriptions along with recruiter details, and helps you generate an ATS friendly version of your resume for each application.

  • TypeScript
  • Agentic AI
  • Automation
  • LLM
  • Next.js
In-Progress

Termtalk

Secure CLI Chat

no. PR-05
2024 - 2025

Engineered an open-source NPM package enabling secure, real-time communication between remote systems via the terminal using Node.js and Socket.io. Maintained high-level security through measures like local server hosting, encrypted message transmission, and automatic chat disposal upon server termination, ensuring utmost security.

  • Websockets
  • JavaScript
  • CLI
  • NPM
Completed

Research Publication - Blockchain

Optimal Payment Splitting in Bitcoin's Lightning Network

no. PR-06
2023

Studied the Blockchain trilemma and its resolution through the Lightning Network’s scalability solutions. Designed an efficient fee structure for the Lightning Network to prevent network saturation and ensure network liquidity. Developed a Dynamic Programming algorithm to minimize user expenditure on fees during payment transactions.

  • Bitcoin
  • Lightning Network
  • Smart Contracts
  • Blockchain
Completed