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Ehsanul Haque Siam

Ehsanul Haque Siam

An AI Engineer & Full-Stack Developer who likes building things.shipping research.

Published researcher · Certified Ethical Hacker · Dhaka, Bangladesh

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About Me

I bridge research and production. Software Engineer at Ledgercross, building across the stack: backend services, React Native and Flutter apps, AI features, and the CI/CD and cloud infrastructure that ship them. Published peer-reviewed research (a Taylor & Francis book chapter and an accepted IEEE QPAIN 2026 paper). Previously drove 1.5x client revenue shipping 4 production websites at BetaScript LLC and built 15+ web scrapers with Gemini-powered AI pipelines at BDTracks. Obsessed with turning complex problems into systems that scale.

  • Dhaka, BD → Worldwide

  • GitHub Activity2,073 contributions
    AugSepOctNovDecJanFebMarAprMayJunJulAugMWF
    Less
    More

  • Users Served

    50,000+

  • Client Revenue

    1.5x

  • Signal

  • Certified Ethical Hacker

    EC-Council CEH. Security research at Deepchain Labs across blockchain and quantum cryptography.

  • Scratch Me

    Scratched-off surprise sticker

  • Connect

    GitHubLinkedInEmailResume

  • Tools

    Machine LearningMachine LearningNLPNLPScikit-learnScikit-learnTensorFlowTensorFlowPyTorchPyTorchLLMs & BERTLLMs & BERTComputer VisionComputer VisionLangChainLangChainPineconePineconeReactReactTypeScriptTypeScriptTailwindCSSTailwindCSSFramer MotionFramer MotionTanStack StartTanStack StartJavaJavaPythonPythonC++C++KotlinKotlinC#C#JavaScriptJavaScriptSQLSQLMySQLMySQLSQLiteSQLiteJDBCJDBC
    Machine LearningMachine LearningNLPNLPScikit-learnScikit-learnTensorFlowTensorFlowPyTorchPyTorchLLMs & BERTLLMs & BERTComputer VisionComputer VisionLangChainLangChainPineconePineconeReactReactTypeScriptTypeScriptTailwindCSSTailwindCSSFramer MotionFramer MotionTanStack StartTanStack StartJavaJavaPythonPythonC++C++KotlinKotlinC#C#JavaScriptJavaScriptSQLSQLMySQLMySQLSQLiteSQLiteJDBCJDBC
    Machine LearningMachine LearningNLPNLPScikit-learnScikit-learnTensorFlowTensorFlowPyTorchPyTorchLLMs & BERTLLMs & BERTComputer VisionComputer VisionLangChainLangChainPineconePineconeReactReactTypeScriptTypeScriptTailwindCSSTailwindCSSFramer MotionFramer MotionTanStack StartTanStack StartJavaJavaPythonPythonC++C++KotlinKotlinC#C#JavaScriptJavaScriptSQLSQLMySQLMySQLSQLiteSQLiteJDBCJDBC
    Machine LearningMachine LearningNLPNLPScikit-learnScikit-learnTensorFlowTensorFlowPyTorchPyTorchLLMs & BERTLLMs & BERTComputer VisionComputer VisionLangChainLangChainPineconePineconeReactReactTypeScriptTypeScriptTailwindCSSTailwindCSSFramer MotionFramer MotionTanStack StartTanStack StartJavaJavaPythonPythonC++C++KotlinKotlinC#C#JavaScriptJavaScriptSQLSQLMySQLMySQLSQLiteSQLiteJDBCJDBC

Why Me

Research that ships

Peer-reviewed publications (Taylor & Francis, IEEE QPAIN 2026) alongside production systems. I read the papers and then build the pipeline.

Measured business impact

4 production sites drove 1.5x client revenue at BetaScript. An ordering platform I built serves 50,000+ customers at a 4.9-star rating.

Security mindset

Certified Ethical Hacker doing blockchain, cybersecurity and quantum cryptography R&D at Deepchain Labs. I build with threat models in mind.

End-to-end ownership

From 272 scraping spiders and Gemini fine-tuning to React frontends and Netlify deploys: design, build, measure, iterate, solo or leading a team.

50,000+
Users served
1.5x
Client revenue
3
Papers & talks
8+
Production apps

Experience

Software EngineerLedgercross

Jun 2026–Present

Full-stack + platform engineer at an early-stage software firm, owning work across the whole stack: backend services, React Native and Flutter apps, AI-powered features, and the CI/CD pipelines and cloud infrastructure that ship them. Startup-wide surface area with end-to-end ownership.

Backend
React Native
Flutter
CI/CD
Infrastructure
AI

Lead Researcher — NLP & LLMsArché Intelligence Lab

Jun 2026–Present

Leading NLP and LLM research at Arché (arche-lab.org), a student-led AI research group at AIUB. Driving work on large language models and natural language processing—including Bengali NLP—toward peer-reviewed publications alongside a distributed team of researchers across AIUB, BUET, BRAC, and RUET.

Research Assistant (Full-time, Remote)Deepchain Labs

Apr 2026–May 2026

Researching blockchain, cybersecurity, and quantum cryptography at Deepchain Labs (deepchainlabs.com), producing peer-review-ready papers, threat analyses, and technical documentation across multiple security domains.

Blockchain
Cybersecurity
Quantum Cryptography
Research

Solo Developer (Part-time, ~20 hrs/week)BetaScript LLC

Jan 2026–May 2026

Shipped 4 production React websites for this US-based digital agency, driving 1.5x client revenue growth measured by post-launch analytics and client billing. Full lifecycle ownership spanning design, React 19 + TanStack Start architecture, and Netlify deployment across restaurant, e-commerce, and agency platforms serving 50,000+ end users.

React 19
TypeScript
TanStack Start
Netlify

AI & Data Engineer (Part-time, ~15 hrs/week)BDTracks

Aug 2025–May 2026

Powering Bangladesh's commodity and accident tracking platform (bdtracks.com). Built 15+ web scrapers and fine-tuned Google Gemini 2.5 Flash/Pro via Vertex AI for automated data classification. Engineered production pipelines processing daily feeds from multiple national sources into structured datasets serving live dashboards.

Python
Web Scraping
Gemini
Vertex AI

AI Engineering InternUnies

Feb 2026–May 2026

Built production RAG pipelines for academic resource retrieval using Pinecone, ChromaDB, LangChain, and LlamaIndex. Engineered automated LLM evaluation pipelines and FastAPI backends powering curriculum-aligned tutoring systems. Benchmarked embedding quality across vector databases to optimize retrieval accuracy.

RAG
LangChain
Pinecone
FastAPI

Team Lead - Game DevelopmentAIUB

Oct 2024–Dec 2024

Led a team of 5 developers to ship a 2D platformer with 3 levels, a custom OpenGL rendering engine, SFML audio, and SQLite persistence, all within a 3-month deadline. Earned 4 GitHub forks and a YouTube demo.

C++
OpenGL
SFML
SQLite
Team Lead

Skills

Machine LearningMachine LearningScikit-learnScikit-learnPyTorchPyTorchComputer VisionComputer VisionPineconePineconeTypeScriptTypeScriptFramer MotionFramer MotionJavaJavaC++C++C#C#SQLSQLSQLiteSQLiteSQL ServerSQL ServerFastAPIFastAPIPostgreSQLPostgreSQLMVVM ArchitectureMVVM ArchitectureFirebaseFirebaseHilt/DaggerHilt/DaggerOpenGLOpenGLGame PhysicsGame PhysicsGLMGLMXPath/CSS SelectorsXPath/CSS SelectorsGitGitLinuxLinuxDockerDockerGoogle CloudGoogle Cloud
Machine LearningMachine LearningScikit-learnScikit-learnPyTorchPyTorchComputer VisionComputer VisionPineconePineconeTypeScriptTypeScriptFramer MotionFramer MotionJavaJavaC++C++C#C#SQLSQLSQLiteSQLiteSQL ServerSQL ServerFastAPIFastAPIPostgreSQLPostgreSQLMVVM ArchitectureMVVM ArchitectureFirebaseFirebaseHilt/DaggerHilt/DaggerOpenGLOpenGLGame PhysicsGame PhysicsGLMGLMXPath/CSS SelectorsXPath/CSS SelectorsGitGitLinuxLinuxDockerDockerGoogle CloudGoogle Cloud
Machine LearningMachine LearningScikit-learnScikit-learnPyTorchPyTorchComputer VisionComputer VisionPineconePineconeTypeScriptTypeScriptFramer MotionFramer MotionJavaJavaC++C++C#C#SQLSQLSQLiteSQLiteSQL ServerSQL ServerFastAPIFastAPIPostgreSQLPostgreSQLMVVM ArchitectureMVVM ArchitectureFirebaseFirebaseHilt/DaggerHilt/DaggerOpenGLOpenGLGame PhysicsGame PhysicsGLMGLMXPath/CSS SelectorsXPath/CSS SelectorsGitGitLinuxLinuxDockerDockerGoogle CloudGoogle Cloud
Machine LearningMachine LearningScikit-learnScikit-learnPyTorchPyTorchComputer VisionComputer VisionPineconePineconeTypeScriptTypeScriptFramer MotionFramer MotionJavaJavaC++C++C#C#SQLSQLSQLiteSQLiteSQL ServerSQL ServerFastAPIFastAPIPostgreSQLPostgreSQLMVVM ArchitectureMVVM ArchitectureFirebaseFirebaseHilt/DaggerHilt/DaggerOpenGLOpenGLGame PhysicsGame PhysicsGLMGLMXPath/CSS SelectorsXPath/CSS SelectorsGitGitLinuxLinuxDockerDockerGoogle CloudGoogle Cloud
NLPNLPTensorFlowTensorFlowLLMs & BERTLLMs & BERTLangChainLangChainReactReactTailwindCSSTailwindCSSTanStack StartTanStack StartPythonPythonKotlinKotlinJavaScriptJavaScriptMySQLMySQLJDBCJDBCREST APIsREST APIsDatabase DesignDatabase DesignAndroid SDKAndroid SDKRetrofitRetrofitRoom DatabaseRoom DatabaseRxJava3RxJava3SFMLSFMLCMakeCMakeScrapyScrapyData CleaningData CleaningGitHubGitHubNeovimNeovimJupyterJupyter
NLPNLPTensorFlowTensorFlowLLMs & BERTLLMs & BERTLangChainLangChainReactReactTailwindCSSTailwindCSSTanStack StartTanStack StartPythonPythonKotlinKotlinJavaScriptJavaScriptMySQLMySQLJDBCJDBCREST APIsREST APIsDatabase DesignDatabase DesignAndroid SDKAndroid SDKRetrofitRetrofitRoom DatabaseRoom DatabaseRxJava3RxJava3SFMLSFMLCMakeCMakeScrapyScrapyData CleaningData CleaningGitHubGitHubNeovimNeovimJupyterJupyter
NLPNLPTensorFlowTensorFlowLLMs & BERTLLMs & BERTLangChainLangChainReactReactTailwindCSSTailwindCSSTanStack StartTanStack StartPythonPythonKotlinKotlinJavaScriptJavaScriptMySQLMySQLJDBCJDBCREST APIsREST APIsDatabase DesignDatabase DesignAndroid SDKAndroid SDKRetrofitRetrofitRoom DatabaseRoom DatabaseRxJava3RxJava3SFMLSFMLCMakeCMakeScrapyScrapyData CleaningData CleaningGitHubGitHubNeovimNeovimJupyterJupyter
NLPNLPTensorFlowTensorFlowLLMs & BERTLLMs & BERTLangChainLangChainReactReactTailwindCSSTailwindCSSTanStack StartTanStack StartPythonPythonKotlinKotlinJavaScriptJavaScriptMySQLMySQLJDBCJDBCREST APIsREST APIsDatabase DesignDatabase DesignAndroid SDKAndroid SDKRetrofitRetrofitRoom DatabaseRoom DatabaseRxJava3RxJava3SFMLSFMLCMakeCMakeScrapyScrapyData CleaningData CleaningGitHubGitHubNeovimNeovimJupyterJupyter

AI & Machine Learning

Machine LearningNLPScikit-learnTensorFlowPyTorchLLMs & BERTComputer VisionLangChainPinecone

Web Development

ReactTypeScriptTailwindCSSFramer MotionTanStack Start

Programming Languages

JavaPythonC++KotlinC#JavaScriptSQL

Backend & Databases

MySQLSQLiteJDBCSQL ServerREST APIsFastAPIDatabase DesignPostgreSQL

Mobile Development

Android SDKMVVM ArchitectureRetrofitFirebaseRoom DatabaseHilt/DaggerRxJava3

Graphics & Game Dev

OpenGLSFMLGame PhysicsCMakeGLM

Web Scraping

ScrapyXPath/CSS SelectorsData Cleaning

Tools & Platforms

GitGitHubLinuxNeovimDockerJupyterGoogle Cloud

Projects

ScholarHub
12,000+ scholarships indexed daily

ScholarHub

Students waste 20+ hours searching fragmented scholarship sources before deadlines pass. Built a unified discovery platform that indexes 12,000+ opportunities daily from 272 automated spiders, reducing search time to minutes. Full-text search with multi-facet filtering, admin review dashboard, and dynamic SEO. React 19 + TanStack Start SSR + Convex + Python scraping pipeline.

ReactTypeScriptTailwindCSSTanStack StartConvexPythonWeb Scraping
LiveCode
TTT Autos
3D Spline vehicle showcases

TTT Autos

Dealership websites lack trust: generic templates with FOMO-driven tactics. Built a cinematic 'Velocity Noir' platform with interactive 3D vehicle showcases, transparent pricing, and a 17-page admin dashboard supporting cars, motorcycles, and bicycles. Polymorphic inventory with 7 indexed tables and 12+ filter facets. React 19 + TanStack Start + Drizzle ORM + Spline 3D.

ReactTypeScriptTailwindCSSFramer MotionTanStack StartDrizzle ORMSQLite
Live
KaajKormo
React 19 + Rust/Axum

KaajKormo

Job applications in Bangladesh are tedious and opaque. Reimagined the experience with Tinder-style swipe-to-apply, AI-powered CV parsing that calculates skill-match percentages, and employer Kanban boards for pipeline tracking. Full-stack: React 19 frontend + Rust/Axum backend + PostgreSQL 17.

ReactTypeScriptRustPostgreSQLTailwindCSSFramer Motion
Code
OfferLagbe
Real-time Convex subscriptions

OfferLagbe

Local deals platforms lack trust: anyone can post anything. Built a community-driven marketplace where user trust scores auto-moderate content (bad actors removed at <10% trust, verified badges at 5+ upvotes). Real-time map with clustering and heatmap visualization. React 19 + Convex real-time DB + MapLibre GL + PWA with offline support.

ReactTypeScriptTailwindCSSConvexMapLibrePWA
LiveCode
Aurum Gold
Lighthouse 90+ target

Aurum Gold

Gold buyers need real-time pricing they can trust. Built a premium e-commerce platform with live gold rate integration, editorial-grade product presentation, and Lighthouse 90+ performance. Cinematic animations create a luxury feel that matches the product. React 19 + TanStack Router + Zustand.

ReactTypeScriptTailwindCSSFramer MotionZustandE-commerce
LiveCode
Void Threads
SSR with Nitro 3

Void Threads

Most e-commerce sites leave money on the table with poor mobile UX. Built a conversion-optimized streetwear platform using sales psychology such as exit-intent recovery, urgency indicators, and trust signals, plus pixel-perfect responsive coverage from 320px to 1920px. SSR via Nitro 3 for instant page loads. React 19 + TanStack Start.

ReactTypeScriptTailwindCSSFramer MotionZustandE-commerce
LiveCode
Indian Claypit
50,000+ customers served

Indian Claypit

A restaurant needed to move from phone-only orders to a digital platform without losing the personal touch that earned their reputation. Built the full-stack solution: frontend ordering experience, backend order processing, event booking, and catering integration, now serving 50,000+ customers with a 4.9★ rating from 2,847 Google Reviews.

ReactTypeScriptTailwindCSSFramer MotionNode.jsE-commerce
Live
BetaScript
150+ clients served

BetaScript

A US-based digital agency needed a web presence that matched their premium positioning and 24-hour response promise. Designed and shipped an animated React site with service showcases, client testimonials, and conversion-optimized contact flows, now representing a BD-USA partnership serving 150+ clients with 100% satisfaction.

ReactTypeScriptTailwindCSSFramer Motion
Live
Student Management System
⭐ 17 Stars, 8 Forks

Student Management System

Reduced university data retrieval time from 50ms to 7ms, a 7x performance improvement validated by load testing with 45+ active users, by redesigning the database to 3NF normalization with Singleton connection pooling in Java. Earned 17 GitHub stars.

JavaMySQLJDBCDesign Patterns3NF
LiveCode
Spotify Sentiment Analysis
85-90% classification accuracy

Spotify Sentiment Analysis

Classified sentiment of 52,702 Spotify reviews with 85-90% accuracy benchmarked against precision/recall/F1 metrics by building a 17-task ML pipeline with TF-IDF vectorization and Multinomial Naive Bayes.

Pythonscikit-learnNLPTF-IDFNaive Bayes
Code
Mario's Multiverse Adventure
3 unique game levels

Mario's Multiverse Adventure

Led a team of 5 to ship a 2D platformer with 3 unique levels and a physics engine earning 4 GitHub forks and a YouTube demo by building a custom rendering engine with OpenGL, SFML audio, and SQLite high scores in C++.

C++OpenGLSFMLSQLiteCMake
LiveCode
BD News Scraper & Analytics
74+ news sources daily

BD News Scraper & Analytics

Automated daily scraping of 74+ Bangladeshi news sources with 82 spiders publishing a live Kaggle dataset updated daily via GitHub Actions by engineering a production pipeline with Scrapy, Playwright, ML-powered sentiment analysis, and Docker deployment.

PythonScrapyFastAPIDockerGitHub ActionsKagglescikit-learn
LiveCode
Hotel Management System
⭐ 15 Stars, 1 Fork

Hotel Management System

Built a hotel operations platform with Bkash/Nagad payment integration earning 15 GitHub stars across 171 commits and 4 releases by developing a modular Java Swing application with secure authentication and admin/user dashboards.

JavaSwingFile I/OOOP
Code
Android Development Journey
54+ structured lessons

Android Development Journey

Curated a comprehensive Android learning repository with 54+ structured lessons as measured by full coverage from beginner fundamentals to advanced patterns (MVVM, Hilt, Paging 3) by building hands-on projects with Retrofit, RxJava3, Room Database, and Firebase integration.

JavaAndroidMVVMRetrofitFirebase
Code
Pharmacy Management System
MIT License

Pharmacy Management System

Built a pharmacy operations platform streamlining medicine management and sales tracking as measured by integrated inventory control, user role management, and 2 contributors collaborating under MIT license by developing a C# .NET Windows Forms application with SQL Server and Guna UI framework.

C#.NETSQL ServerGuna UI
Code
See more on GitHub

Case Studies

How I take a problem apart: what was broken, what I built, and what measurably changed.

ScholarHub

ReactTypeScriptTailwindCSSTanStack StartConvexPython
LiveCode

Problem

Students seeking international scholarships face fragmented information scattered across hundreds of sources, making it nearly impossible to discover relevant opportunities before deadlines pass.

Approach

Built a unified scholarship discovery platform with 272 automated spiders scraping daily, intelligent deduplication, multi-facet search and filtering, and an admin dashboard for quality control, giving students a single place to find every scholarship they're eligible for.

01

Scraping Pipeline

Engineered 272 spiders across 7 scraping methods (HTML, API, RSS, JSON-LD, Scrapling, AJAX, Inertia.js) with wave-based scheduling, automatic deduplication, and source health monitoring.

02

Discovery Engine

Implemented full-text search with autocomplete, filtering by country, degree level, field of study, funding type, and prestige tier, plus nationality-aware recommendations.

03

Admin Dashboard

Built a review queue for pending scholarships, source trust manager for auto-publish vs manual review, collections manager, and tags manager with status-based stats.

04

SEO & Performance

Implemented dynamic OG image generation with Satori, XML sitemaps, JSON-LD structured data, country and degree landing pages, and SSR with TanStack Start on Netlify.

12,000+
Scholarships
272
Sources
7
Scraping Methods
5
Source Categories

Testimonials

Siam delivered 4 production websites ahead of schedule. His work directly drove a 1.5x increase in our client revenue. He doesn't just write code, he understands business impact.
Alex ThompsonFounder, BetaScript LLC
His RAG pipeline work was remarkably production-ready for an intern. He built evaluation frameworks that we're still using months later. A rare engineer who bridges ML research and shipping.
Dr. RahmanSupervisor, Unies
Siam delivered 4 production websites ahead of schedule. His work directly drove a 1.5x increase in our client revenue. He doesn't just write code, he understands business impact.
Alex ThompsonFounder, BetaScript LLC
His RAG pipeline work was remarkably production-ready for an intern. He built evaluation frameworks that we're still using months later. A rare engineer who bridges ML research and shipping.
Dr. RahmanSupervisor, Unies
Siam delivered 4 production websites ahead of schedule. His work directly drove a 1.5x increase in our client revenue. He doesn't just write code, he understands business impact.
Alex ThompsonFounder, BetaScript LLC
His RAG pipeline work was remarkably production-ready for an intern. He built evaluation frameworks that we're still using months later. A rare engineer who bridges ML research and shipping.
Dr. RahmanSupervisor, Unies
Siam delivered 4 production websites ahead of schedule. His work directly drove a 1.5x increase in our client revenue. He doesn't just write code, he understands business impact.
Alex ThompsonFounder, BetaScript LLC
His RAG pipeline work was remarkably production-ready for an intern. He built evaluation frameworks that we're still using months later. A rare engineer who bridges ML research and shipping.
Dr. RahmanSupervisor, Unies
Our online ordering platform went from zero to 50,000+ customers. The 4.9-star rating speaks for itself. Siam built something our customers genuinely love using.
Priya KapoorOwner, Indian Claypit
Publishing 3 peer-reviewed papers while leading a 5-person game dev team and maintaining Dean's List, Siam's ability to deliver across research and engineering is exceptional.
Prof. HasanFaculty Advisor, AIUB
Our online ordering platform went from zero to 50,000+ customers. The 4.9-star rating speaks for itself. Siam built something our customers genuinely love using.
Priya KapoorOwner, Indian Claypit
Publishing 3 peer-reviewed papers while leading a 5-person game dev team and maintaining Dean's List, Siam's ability to deliver across research and engineering is exceptional.
Prof. HasanFaculty Advisor, AIUB
Our online ordering platform went from zero to 50,000+ customers. The 4.9-star rating speaks for itself. Siam built something our customers genuinely love using.
Priya KapoorOwner, Indian Claypit
Publishing 3 peer-reviewed papers while leading a 5-person game dev team and maintaining Dean's List, Siam's ability to deliver across research and engineering is exceptional.
Prof. HasanFaculty Advisor, AIUB
Our online ordering platform went from zero to 50,000+ customers. The 4.9-star rating speaks for itself. Siam built something our customers genuinely love using.
Priya KapoorOwner, Indian Claypit
Publishing 3 peer-reviewed papers while leading a 5-person game dev team and maintaining Dean's List, Siam's ability to deliver across research and engineering is exceptional.
Prof. HasanFaculty Advisor, AIUB

Awards & Certifications

Dean's List Awards - 3x Academic Excellence

Award

Earned 3 Dean's List Awards for academic excellence with CGPA of 3.95, 3.89, and 3.75+ across consecutive semesters by maintaining top performance while building 15+ projects and publishing research.

AIUB CS FEST 2024 - 1st Runner Up

Award

Won 1st Runner-Up at AIUB CS FEST 2024 App Showcase competing against 20+ teams evaluated by industry judges by demonstrating innovative mobile development with polished UI/UX and presentation.

South Asian Climate Conference 2024

Certificate

Presented original climate research at an international conference demonstrating statistical findings on South Asian climate trends by conducting data collection, statistical modeling, and visualization of regional environmental data.

Certified Ethical Hacker - Team Matrix

Certificate

Certified Ethical Hacker through a 4-month, 29-module offensive security program passing 3 exams (theoretical, lab, viva) by performing penetration tests on live servers, exploiting OWASP Top 10 vulnerabilities, and completing CTF and bug bounty engagements.

Research

Decoding Research Trends: A Clustering Based Topic Modeling Framework

Accepted

IEEE QPAIN 20262026 | Accepted (IEEE Xplore, Scopus Indexed)

Proposed a clustering-based topic modeling framework for decoding research trends accepted with minor revision for IEEE Xplore and Scopus indexing by developing novel clustering algorithms applied to academic publication data.

Beyond NER: A Comparative Benchmark of Medical BERTS for Multi-Label Adverse Drug Reaction Classification

Published

International Conference on Intelligent Data Analysis and Applications (IDAA 2025)Dec 2025 | Book Chapter (Taylor & Francis)

Benchmarked domain-specific Medical BERT models for multi-label adverse drug reaction classification demonstrating improved performance over general BERT on the PsyTAR dataset by fine-tuning BioBERT and PubMedBERT architectures with multi-label classification heads.

Unfolding Emerging Issues in the Context of Changing Climatic Scenario

Presented

2nd South Asian Conference on ClimateSep 2024 | Statistical Analysis & Presentation

Presented statistical analysis of emerging climate issues to an international audience contributing to South Asian regional understanding of environmental trends by collecting, modeling, and visualizing climate data with statistical methods.

Education

B.Sc. in Computer Science and Engineering

American International University-Bangladesh (AIUB)2022 - 2026 (expected)

Pursuing
CGPA 3.90 / 4.003x Dean's ListPublished researcher

Higher Secondary Certificate (HSC), Science

Govt. Azizul Haque College, Bogura2019 - 2021

Completed

Secondary School Certificate (SSC), Science

Bogra Zilla School2011 - 2019

Completed

FAQ

Ehsanul Haque Siam is an AI Engineer and Full-Stack Developer based in Dhaka, Bangladesh. He is a Research Assistant at Deepchain Labs (blockchain, cybersecurity, and quantum cryptography R&D), a Solo Developer at BetaScript LLC where he shipped 4 production React websites driving 1.5x client revenue, and an AI & Data Engineer at BDTracks building web scrapers and Gemini-based data-classification pipelines. He has published peer-reviewed research (Taylor & Francis; IEEE QPAIN 2026, accepted), is a 3× Dean’s List awardee at AIUB, and is a Certified Ethical Hacker.

Writing

  • How I Built 272 Web Spiders for ScholarHub

    In press

    The architecture behind scraping 12,000+ scholarships daily from 272 sources using 7 different scraping methods, including Cloudflare bypass and auto-healing pipelines.

    DEV.to8 minPython, Web Scraping, Architecture

  • 7x Query Performance: Database Normalization in Practice

    In press

    How redesigning a student management database to 3NF with Singleton connection pooling dropped query latency from 50ms to 7ms.

    DEV.to6 minDatabase, Performance, Java

  • Building RAG Pipelines That Actually Work

    In press

    Lessons from production: choosing between Pinecone and ChromaDB, optimizing embedding quality, and building evaluation pipelines that catch retrieval failures.

    DEV.to10 minAI, RAG, LangChain

Contact

Currently a Software Engineer at Ledgercross, building across the stack. I take on select AI/ML and full-stack engagements. Direct lines below; replies within 24 hours (UTC+6).

Emailehsanul.siamdev@gmail.com
GitHub@EhsanulHaqueSiam
LinkedInin/EhsanulHaqueSiam
ResumeView or download PDF
Hiring?Send a pre-filled role brief
Interactive: move your cursorDhaka · UTC+6

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Ehsanul Haque Siam

AI Engineer and Full-Stack Developer, bridging published research and production systems from Dhaka to worldwide.

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