Hello there! I'm Dean Hans!

I am an AI Engineer and Computer Science graduate specializing in Intelligent Systems. I have spent 1 year and 5 months building AI products at egeroo.ai, part of KPSG Group and Anabatic Technologies.

I enjoy turning ideas into production-ready Generative AI systems, from LLM chatbots and RAG to agents, document intelligence, multimodal workflows, and backend integrations. Along the way, my work helped reduce AI operating costs by about 85% and chatbot response latency by about 50%.

Outside of work, I like building AI projects around problems and ideas I care about. These include Dio, a mini-GPT poetry model, Narrative Nest, and Monelytics, alongside work in computer vision, speech recognition, neural networks, and AI fine-tuning.

I also published a 2025 ICCSCI paper, graduated with a final GPA of 3.90/4.00 and Magna Cum Laude honors, and took part in leadership and mentorship at BINUS. I am always happy to talk about technology, data, or AI, so feel free to reach out or ask Dio on your bottom right corner.

Education

Bachelor of Computer Science

Bina Nusantara University • 2022 - 2026

Final GPA: 3.90/4.00•Magna Cum Laude

Experience

AI Engineer

Professional

egeroo.ai (Part of KPSG & Anabatic Technologies) • Feb 2026 - Present

Performed detailed analysis of existing GenAI-based chatbot and sentence-understanding chatbot architectures; improved debugging and testing workflows by building an evaluation mode flow.
Built automated request testing and created chart-based analysis, including distribution charts, to evaluate AI workflow latency and agentic behavior for clearer reporting and product decisions.
Achieved 85% faster sentence-understanding chatbot response latency by redesigning similarity search from sequential filtered lookups into a batched similarity-search architecture.
Maintained response latency despite an about 823% parameter increase, or 9.23x larger model, through local vector storage experimentation, architecture adjustments, and quantization exploration.
Improved cross-provider LLM implementation to preserve the benefits of model’s native SDKs while maintaining flexible model configuration
Enhancing the software to maintain observability and reliability of the system.

AI Engineer Intern

Professional

egeroo.ai (Part of KPSG & Anabatic Technologies) • Feb 2025 - Jan 2026

Contributed on majority of every Generative AI usage within company and product.
Reduced AI chatbot operating cost by about 85% and response latency by about 50% versus the prior product iteration through experimentation, architecture design, and optimization within the first 1.5 months of internship period.
Designed and built 4 Generative AI chatbot architectures: RAG Q&A, order-taking assistant, product recommender, and customized multimodal LLM agents for image, PDF, audio, and text input.
Built 4 product features based on Generative AI: Human Agent helper, HR Helper (not as decision maker), value extractor, and helper for sentence based analysis chatbot.
Expanded RAG capability, flexibility, and reliability with LLM multi-provider implementation including local provider such as vLLM, query improvement, two-stage retrieval, analyze LangChain flows and rebuilt from ground up to integrate well with current project, local vector database, vector indexing, language-aware pre-retrieval optimization, and support for webpages, flyers, tables, and complex documents.
Maintained and optimized pipeline by prompt engineering, testing, building observability system, and retry system.

Scholarship Student Mentor

Leadership & Organizational

SASC Binus University • Mar 2024 - Jan 2025

Provided guidance and support to mentees to increase & maintain their academic performance
Conducted regular mentoring sessions to track progress and address challenges
Communicate with supervisor on mentoring progress and challenges
Improved mentee's academic GPA from 1.8 to 2.2
Mentee awarded with Best Mentee 2023/2024 Even Period

Mentor

Leadership & Organizational

HIMTI Leadership Training 2024 • Mar 2024

Guided aspiring activists in Design and Documentation Division
Reviewed and provided constructive feedback on design projects

Co-Coordinator Design and Documentation

Leadership & Organizational

HIMTI BINUS TECHNO ARCADE 2023 • Apr 2023 - Oct 2023

Managed division tasks and coordinated with team members
Created promotional videos and after-movie content for events
Facilitated communication between division members and coordinators