Thesis: A Comparative Malware Analysis of XWorm and Nanocore — Enhanced Detection
Strategies
Coursework: AI, Neural Networks, Data Science, Algorithms, System Design, Ethical
Hacking
EXPERIENCE
Software EngineerMay 2024 – Nov 2025
Periscope Labs Limited · Dhaka
Built agentic AI validation system for trade documents using RAG with multi-LLM
orchestration (OpenAI, Mistral AI) and Weaviate, reducing manual review by 70%.
Led loan-approval prediction platform — EDA, feature engineering, XGBoost/CatBoost
models improving F1 from ~0.51 to ~0.79 (AUC-ROC ~0.84); added SHAP explainability,
increasing daily processing from ~30 to ~200 applications.
Productionized log analytics & anomaly detection (Isolation Forest, Z-score/MAD) as
async FastAPI service; migrated to Parquet + Polars, reducing parse time from 15 min to
~4 min.
Security ResearcherOct 2023 – Present
Intigriti · HackerOne · Bugcrowd · Remote
Discovered critical SQL injection (marked Exceptional) in Ubisoft production systems;
reported auth bypass (CVE-2019-20933), XSS, and client-side desync vulnerabilities
across enterprise targets (Eurofins, DHL).
Hall of Fame: Eurofins. Advanced reconnaissance to uncover authorization flaws and
sensitive data exposure in production systems.
Backend EngineerMar 2025 – Nov 2025
PrimeStaff · Remote · Part-time
Built Django backend for multi-channel recruiting platform with candidate/lead
workflows, application stages, and admin panels. Implemented Celery + Selenium for
scheduled scraping; developed React dashboards for admin and user-facing interfaces.
Research Data EngineerAug 2021 – Oct 2022
R1 Research Institute · US, Dept. of Economics · Contract
Built ETL workflows to deduplicate and normalize multi-source hierarchical datasets,
reducing manual data cleaning by 80%.
Data EngineerJan 2020 – May 2024
Upwork · Remote · Freelance
Architected 3-tier data pipeline for environmental monitoring platform — 40+ years of
historical data, real-time updates, Power BI dashboard with AQI calculations and
time-series aggregations.
Engineered high-concurrency Python scrapers for Yahoo Finance, Amazon, and X (Twitter)
supporting financial sentiment analysis.
PROJECTS
Text2SQL Analytics System
PythonFastAPIPostgreSQLSQLAlchemyGemini
Production-ready NL→SQL platform with strict query sandboxing (SELECT-only, injection
blocking, 5s timeout), 69 automated tests (92% coverage), 20-query benchmark with 0.992
average accuracy.
Healthcare RAG Assistant
FastAPIFAISSSentence-TransformerGemini
Production REST API with RAG pipeline for multilingual medical Q&A (EN/JP). Fully
containerised, stateless beyond persisted FAISS index; 3-stage CI via GitHub Actions.
Temporal Jersey Number Recognition
PyTorchEfficientNet-B0BiLSTMMixed Precision
Lightweight BiLSTM model (5.1M params) achieving 92.12% accuracy across 8-frame
sequences — outperforms single-frame baseline by 43%, with 89% temporal stability.
