$ hello_world — I'm

Istiak Islam

I build full-stack products and end-to-end data pipelines — from React apps with AI features to ML models served over FastAPI.

01 · about

I'm a computer science graduate from BRAC University based in Dhaka, working at the intersection of software engineering and data. I like shipping things end to end — the React frontend, the API behind it, and the data pipeline underneath.

On the software side, I've built and deployed three products running live in production — a finance app with an AI layer, an Islamic productivity platform, and a watchlist tracker — all on free-tier infrastructure that I architected to stay fast and reliable.

On the data side, my undergraduate thesis built a Bayesian adaptive rating system for e-commerce, and I'm currently completing the government-backed ITS 507 Data Science certificate at BRAC University — admitted through a competitive national exam — covering advanced ML, big data, and MLOps. My capstone took a Kaggle-scale NLP regression problem from raw data to a served FastAPI model.

0

products live in production

0

public repositories

0+

AI features shipped

0K

records in largest dataset

02 · featured work

app · 2025

FinTrack

live

Open-source personal finance app with expense tracking, lent/debt ledger, and investment portfolio — plus 10 AI-powered features running on Groq.

10

AI features

RLS

row-level security

React 19TypeScriptSupabaseTanStackGroq AIFramer Motion
read case study
pipeline · 2026

Mercari Price Suggestion

End-to-end ML pipeline that predicts fair listing prices from title, description, category, and brand — NLP feature engineering, LightGBM, FastAPI serving.

0.465

RMSLE

25.5%

over baseline

$10.44

MAE

PythonLightGBMNLPFastAPIPandasScikit-learn
read case study
app · 2025

Ihsan

live

Full-stack Islamic productivity app — zikr, salat, fasting and Quran habit tracking with streaks, goals, and timezone-aware analytics.

4

ibadah trackers

0ms

config for timezones

ReactExpressMongoDBFirebase AuthZustandReact Query
read case study
app · 2026

CineTrack

live

Movie & series watchlist with instant guest mode, Google sign-in with real-time Firestore sync, and TMDB poster auto-fetch.

ReactTypeScriptFirestoreTMDB APIFramer Motion

← swipe →

03 · data & machine learning

From raw data to served models

EXTRACTraw dataTRANSFORMfeaturesMODELtrain + tuneSERVEFastAPI

Mercari Price Suggestion

End-to-end ML pipeline that predicts fair listing prices from title, description, category, and brand — NLP feature engineering, LightGBM, FastAPI serving.

0.465

RMSLE

25.5%

over baseline

$10.44

MAE

PythonLightGBMNLPFastAPI
read case study

Adaptive Rating System

Undergraduate thesis: Bayesian-average product ratings with exponential time decay and AI sentiment extraction — shipped as a Chrome extension for real e-commerce pages.

1yr

research project

HCI

domain

Bayesian statisticsSentiment analysisEDAChrome Extension
read case study

Brain Stroke Classification

Classified 43,400 clinical records under heavy class imbalance — SMOTE resampling, 4 classifiers compared with 10-fold cross-validation.

96.79%

best accuracy

43.4K

records

PythonScikit-learnSMOTERandom Forest

04 · toolbox

PythonSQLTypeScriptReactNext.jsNode.jsPandasScikit-learnLightGBMFastAPIPythonSQLTypeScriptReactNext.jsNode.jsPandasScikit-learnLightGBMFastAPI
PostgreSQLMongoDBSupabaseFirebaseDockerAirflowApache SparkGitLinuxTailwind CSSPostgreSQLMongoDBSupabaseFirebaseDockerAirflowApache SparkGitLinuxTailwind CSS

Languages

PythonSQLTypeScriptJavaScriptBash

Web & Backend

ReactNext.jsNode.jsExpressTailwind CSSTanStack QueryZustandFirebaseREST APIs

Data & ML

PandasNumPyScikit-learnLightGBMXGBoostSeabornPlotlyHypothesis testingBayesian reasoningTime series (ARIMA, Prophet)NLP

Data Engineering & Ops

PostgreSQLMongoDBMySQLFastAPIApache SparkAirflowDockerGitLinuxCI/CD

05 · journey

2026 — present

Certificate on Data Science (ITS 507)

BRAC University · Govt. of Bangladesh ICT Initiative · ADB co-funded

  • Admitted via competitive national written exam and interview
  • Advanced ML (XGBoost, LightGBM), Bayesian statistics, time series (ARIMA, Prophet)
  • Big data (Hadoop, Spark) and MLOps (Airflow, Docker, Kubernetes, cloud)
  • Capstone: Mercari price suggestion — end-to-end ML pipeline

2021 — 2025

BSc in Computer Science

BRAC University, Dhaka

  • Thesis: Bayesian adaptive rating system for e-commerce with AI sentiment analysis — commended by supervisor for statistical rigour
  • imaGen Ventures Youth Challenge 2024 national finalist (UNICEF & JAAGO)
  • 6 credits from Bard College at Simon's Rock (international exchange)
  • Executive member, BRACU Robotics Club

2019 — present

Co-founder & Executive Volunteer

ARUN — non-profit community organisation

  • 5+ years leading disaster relief fundraising and donation campaigns

2018 — 2020

Higher Secondary Certificate

Notre Dame College, Mymensingh

  • Science stream

06 · open source

github.com/isttiiak

07 · contact

I'm currently open to software engineering and data engineering roles — full-time, contract, or interesting collaborations. My inbox is always open.