Backend & Cloud Engineer Β· Java Β· Spring Boot Β· AWS
Building AI voice, automation, and cloud systems in production. Doing applied ML research on the side.
I build backend systems for voice, automation, and cloud infrastructure. For the past three-plus years at VoiceCradle I've designed and shipped the systems behind an AI-powered customer communication platform: Amazon Connect IVR call flows, Amazon Lex and LLM-backed chatbot layers, Lambda and DynamoDB services, and the real-time dashboards the team uses to run it.
Before that, at USAHomeBid, I worked on API performance and database optimization for a real-estate platform, using query optimization and caching to significantly cut page load times.
I'm most interested in event-driven architecture, distributed systems, and running AI in production. My stack is Java/Spring Boot on AWS, plus Python and Docker. On the research side, I work on transfer learning for medical image classification.
- π Currently: AI voice & IVR automation on Amazon Connect Β· cloud-native backend systems
- βοΈ AWS Certified: Solutions Architect β Associate, Cloud Practitioner
- π Research interests: transfer learning, medical image classification, data leakage in ML evaluation, speech processing
- π³ DevOps: Docker, Nginx, Linux, CI/CD, observability (OpenSearch / ELK)
- π Education: B.Sc. in Computer Science & Engineering, BUBT (expected Dec 2026)
- AWS Certified Solutions Architect β Associate (SAA-C03), Aug 2026 Β· Verify on Credly
- AWS Certified Cloud Practitioner (CLF-C02), Jul 2026 Β· Verify on Credly
- Odoo 19 Certified Functional Β· View certificate
- Analyzing Regional Variations in Bangla Speech: A Voice Classification using MFCCs International Conference on Artificial Intelligence for Sustainable Engineering and Innovation (ICAISEI), 2026 Β· ResearchGate District-level Bangla voice classification (Dhaka vs. Chittagong) from MFCC features, comparing classical ML models.
| Project | Description | Stack |
|---|---|---|
| Personal Finance Tracker | Finance tracking API with JWT auth, email OTP verification, and Flyway migrations, plus an Android client | Spring Boot PostgreSQL Docker |
| url-shortener | Bit.ly-style URL shortener with custom slugs, click tracking, and redirection | Java Spring Boot PostgreSQL |
| OLK-Stack | OpenSearch, Logstash & Kibana observability stack, containerized | Docker OpenSearch Logstash |
| Spring-Data-Specification | Dynamic query building with Spring Data JPA Specifications | Java Spring Boot JPA |
| Pustok-Online-book-shop | Android app for buying and reading books, with a separate admin panel | Java Android |



