Siam Hossain
Software Engineer — Full-Stack · AI / ML
Backend-leaning full-stack engineer. I design and ship retail systems — POS, inventory, payments — and integrate AI into real workflows. 2+ years building software; client work since 2025.
Things I’ve built.
Real systems in production: a pharmacy POS, a Telegram-driven notice bot, an AI resume assistant. Plus learning projects and a few front-end experiments.
Pharmacy POS & inventory
AI resume builder
AIUB Notice Bot
Telegram → scrape → classify → notify. 2 live cycles a minute.
Email Trucker
MegaBazar
ShoeVista
WordPress sites
Static sites
Learning log
Open-source & public repos.
A grab-bag of the better public work on my GitHub — full-stack apps, AI experiments, DevOps tools and small utilities. Tap any card to open the repo.
CV_Management
MEAN Stack Boilerplate
Gridwise LLM Energy Optimizer
Sleep Loop
Site Sentinel
ParcelFlow API
Amaze PMS
Unlimited Storage
Image → PDF Converter
ERP Primary School
AIUB Notice Board
Data Structure
Two years, one turning point.
Freelance Software Engineer — Backend & Full-Stack
Client work: integrations, dashboards, small e-commerce builds. I design, ship, and hand off.
Independent & Open-Source Projects
Pharmacy POS, Telegram notice pipelines, learning projects, public repos. Self-directed sprint cadence.
B.Sc. CSE · AIUB · 2026
Coursework in distributed systems, ML, and software engineering. Capstone on retail system design.
- Meta Front-End Developer
- Google Generative AI Fundamentals
- HackerRank Problem Solving & SQL
Stack, by evidence.
Chips with a count open an anchored popover listing the projects that use them.
Languages
Frontend
Backend
Database
DevOps
AI & automation
WordPress
Tools
Practice
Where the edges get blunt.
| Platform | Solved | Source |
|---|---|---|
| LeetCode | 303 | cached |
| Codeforces | 318 | cached |
| HackerRank | 63 | cached |
| Codolio | 2000+ | total |
Three tools, three jobs.
Claude Code for plan-then-build sessions. Cursor for inline edits across files. GitHub Copilot for completions in unknown repos.
Transformers from scratch
Following Karpathy & 3Blue1Brown; rebuilding attention in NumPy.
LLM evaluation
Held-out evals for a retrieval-augmented summariser.
RAG patterns
Chunking, hybrid retrieval, reranking. Notes from the resume builder.
Prompt regressions
Snapshot tests for prompts in CI.
Vector databases
pgvector basics.
Production guardrails
Timeouts, schemas, retries — what I've learned shipping.
A bit about me.
I taught myself to code at 14 by rebuilding a small point-of-sale I saw at a family pharmacy. Ten years later I've built three more for actual pharmacies, integrated AI into a real workflow, and shipped a Telegram bot that 200+ students rely on for class notices.
I'm looking for full-time roles where I can keep doing this: close to the data, close to the user, building things people actually use.
Let’s talk.
siam.cse.aiub@gmail.com