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rabbilyasar/README.md

Rabbil Yasar Sajal

Software Engineer · Product Builder · Python

I build backend systems, developer tools, and AI-powered products that solve practical problems.

Portfolio · LinkedIn · Dev.to · Email


Building

EnvShield A developer tool for managing environment configuration as a version-controlled contract, with schema validation, secret scanning, and Git enforcement.

JossJobs An AI-powered job intelligence system that turns noisy job postings into structured, evidence-backed opportunities. The pipeline handles discovery, extraction, eligibility assessment, fit scoring, and ranking while minimizing unnecessary LLM usage.

KemonChilo A restaurant customer intelligence and service recovery platform. Customers provide feedback through QR/NFC, while restaurants get real-time alerts, AI-powered issue classification, operational insights, and structured service recovery workflows.

Agentic Engineering

I'm interested in using AI agents as engineering tools, not just chat interfaces.

I've been experimenting with:

  • Claude Code and agent-driven software development
  • Playwright-based browser automation and testing
  • MCP-based agent tooling
  • Agentic UI testing and verification
  • Benchmarking agent workflows and tool usage
  • Designing workflows that keep deterministic logic outside the LLM
  • Using AI where it provides leverage without turning the entire system into an LLM dependency

Engineering

I mostly work with:

Python Flask Django PostgreSQL Docker AWS Terraform Pytest Playwright

I'm particularly interested in:

  • Backend architecture and APIs
  • Developer tooling
  • AI-assisted software development
  • Agentic systems and automation
  • Testing and developer experience
  • Turning small ideas into production software

How I build

Solve the actual problem. Keep the system understandable. Automate what should be automated. Use AI where it provides leverage. Don't add complexity without a reason.


Building useful things, one problem at a time.

Pinned Loading

  1. envshield envshield Public

    Environment variables, as a version-controlled configuration contract.

    Python 9

  2. auction_site auction_site Public

    An auction site like ebay.

    Python

  3. shohanean/creativeinventory shohanean/creativeinventory Public

    A Dynamic Inventory System for Creative IT Institute

    HTML 1

  4. dexpense_tracker dexpense_tracker Public

    JavaScript

  5. movie-stuffs movie-stuffs Public

    An application to show movie details and play trailers with Vue, Laravel and TMDB Api integrated with Youtube API

    PHP

  6. creativeinventory_v2 creativeinventory_v2 Public

    version 2 of Creative Inventory, Version 1 on https://github.com/shohanean/creativeinventory

    HTML