Headline

Software Engineer who builds AI systems that actually answer questions | Python, FastAPI, RAG, LLMs

About

I build applied AI systems — from retrieval-augmented generation pipelines to production-facing tools — and I like shipping things people actually use. Most recently, I designed and built Meridian, an enterprise knowledge assistant using hybrid BM25 + semantic search (FastAPI, ChromaDB, sentence-transformers, Groq's Llama 3.3-70B) to cut manual document lookup time in a RAG-based Q&A workflow. I followed that by building an AI-powered invoice-PO matching and validation tool (FastAPI, React, Groq API, SQLite, Airtable, JWT auth) that automated a manual reconciliation process end-to-end, complete with a full submission package — architecture docs, demo video, and slides. I'm a published researcher in secure wireless communications for defense applications, and I served as Research Head and Mentor at the Association for Cyber Security — directing research strategy and mentoring interns through the ACS Dev+Sec 2.0 program — alongside serving as President of the ISTE Student Chapter at TOCE. I'm an Information Science Engineering graduate (2026) actively looking for AI/ML and GenAI engineering roles where I can keep building systems end-to-end. 📫 Open to connecting — reach me at rounakbanerjee0204@gmail.com or check my work on https://github.com/BookishThumb.

Location

Bengaluru

AI stack

antigravity

claude

glama

grok

hermes agent

manus

Work experience

Android App Development using Generative AI at MindMatrixEd, Feb 2026 - May 2026 · 4 mos, Bengaluru, Karnataka, India, Built Namma Santhe Ledger, an offline-first Android app for rural Karnataka market vendors, by implementing MVVM architecture with Kotlin, Jetpack Compose, Room, and StateFlow, resulting in reliable operation in low-connectivity environments and an "Excellent" internship performance rating. Engineered data integrity safeguards using SHA-256 hashing and KSP-based code generation, resulting in a tamper-resistant offline transaction ledger for non-technical end users.

Software Intern at Edunet Foundation, Nov 2024 - Dec 2024 · 2 mos, Remote, Built an image classification platform by integrating MobileNetV2 (1,000-category ImageNet classification) and a custom-trained CIFAR-10 deep learning model behind a Streamlit web interface, resulting in real-time predictions with confidence scores through a live model-comparison demo. Completed the AICTE-certified "AI: Transformative Learning" program, a Microsoft & SAP-backed CSR initiative delivered through Edunet Foundation's TechSaksham track, resulting in a verified AICTE credential.

Research head and Mentor at Association For Cyber Security, Jul 2024 - Jul 2025 · 1 yr 1 mo, Remote, Directed research strategy for the Association for Cyber Security as Research Head by setting the research agenda and building industry-academic collaborations, resulting in a published research paper on secure wireless communications for defense applications. Mentored interns through the ACS Dev+Sec 2.0 cybersecurity training program by guiding their technical development, resulting in a formal Letter of Appreciation for contributions to the cohort's professional growth.

Software Engineer at InterCast Audio LLC, Jul 2023 - Aug 2023 · 2 mos, Washington, United States, Contributed to software engineering projects at a US-based audio technology company by applying research, analysis, and technical documentation skills, resulting in a formal experience certification from the CEO for professionalism and technical contribution.

Education

Bachelor of Engineering, Information science and Engineering, The oxford college of engineering

Public links

github: https://github.com/BookishThumb

leetcode: https://leetcode.com/bookish

rounakfolio-6ua6ja3t.manus.space: https://rounakfolio-6ua6ja3t.manus.space/