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hash1khn/README.md

Hey, I'm Hashir 👋

Backend-focused Full-Stack Engineer · AI Engineering

CS Graduate · 2+ Years Experience · Startup / CTO Experience





👋 About Me

I'm a Computer Science graduate and backend-focused full-stack developer with 2+ years of hands-on experience building and shipping web and mobile products.

I've worked in startup environments where I've been involved beyond development — from backend architecture and technical decisions to product development, deployment, and production systems.

My primary focus is backend development with TypeScript, Node.js, NestJS, PostgreSQL, and Redis, while also working across frontend, mobile, cloud infrastructure, and APIs.

I'm currently going deeper into AI engineering, building practical applications around LLMs, RAG, tool calling, structured outputs, and AI agents.


What I Do

Backend Engineering

  • REST APIs
  • Backend architecture
  • Authentication & authorization
  • RBAC / access control
  • Real-time systems
  • PostgreSQL & Redis
  • API integrations
  • Caching
  • Production deployments

AI Engineering

  • LLM-powered applications
  • RAG pipelines
  • Embeddings
  • Vector search
  • Hybrid search
  • Tool calling
  • Structured outputs
  • AI agents
  • AI-powered workflows

Tech Stack

Backend

TypeScript · JavaScript · Node.js · NestJS · Express · Python · Prisma


Frontend & Mobile

React · Next.js · React Native · Expo · Tailwind CSS · Flutter


Databases

PostgreSQL · MongoDB · MySQL · Redis · Supabase


Cloud & DevOps

AWS · DigitalOcean · Docker · Railway · Vercel · Git · GitHub


AI / LLM

LLMs · RAG · Embeddings · Vector Search · Hybrid Search · Tool Calling · Structured Outputs · AI Agents · Prompt Engineering


Currently Learning

AI Engineering
│
├── LLMs
├── RAG
├── Embeddings
├── Vector Databases
├── Hybrid Search
├── Tool Calling
├── Structured Outputs
└── AI Agents

Backend / Systems
│
├── System Design
├── Distributed Systems
├── Caching
├── PostgreSQL Internals
├── Redis
└── Observability

How I Learn

I prefer learning by building:

Learn → Build → Get Stuck → Understand → Rebuild → Explain

I use AI as a learning partner for explaining concepts, brainstorming, debugging, challenging assumptions, and speeding up development — while still reviewing, testing, and understanding the implementation myself.


GitHub Stats



Experience

I've worked across different types of products and engineering environments, including:

  • Corporate transportation & mobility
  • SaaS platforms
  • Marketplace applications
  • Mobile applications
  • AI-powered applications
  • Backend APIs & integrations
  • Automation & data processing

My startup experience has also involved working across architecture, product decisions, development, deployment, and production systems — rather than focusing only on individual features.


What I'm Interested In

Backend Engineering · AI Engineering · Developer Tools · Startups · System Design · Distributed Systems · LLM Applications · AI Agents · Scalable APIs · Real-world Products


Let's Connect


Building. Learning. Shipping.

Pinned Loading

  1. solar-webapp solar-webapp Public

    Web app for a solar company

    Python 1 1

  2. automative-commerce-app automative-commerce-app Public

    TypeScript 1

  3. Online-tuition-platform Online-tuition-platform Public

    Forked from ramen2003/Online-tuition-platform

    JavaScript 2

  4. parthub parthub Public

    Part Hub is a web application designed to automate the scraping and management of car parts data from multiple sources.

    Python 1

  5. reddit-sentiment-analysis reddit-sentiment-analysis Public

    Reddit Sentiment Analysis performs sentiment analysis on Reddit comments using natural language processing techniques and machine learning models.

    Jupyter Notebook 3 1

  6. path-navigation-system path-navigation-system Public

    simple path navigation system based on karachi map

    Python 3 2