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Nicholas Matthew

@nicholasmatthew

Message

AI/ML engineer building production NLP, speech, and LLM RAG systems with FastAPI on AWS.

United States

Message

What I'm looking for

I’m aiming to build and deploy NLP, speech, and LLM RAG systems end-to-end—modeling, FastAPI backends, and MLOps—so they run reliably in production on AWS.

I’ve spent the last several years engineering and launching NLP models for text analysis and sentiment classification, plus speech recognition improvements using Whisper and Wav2Vec2. At Paklogics, I also built Retrieval-Augmented Generation (RAG) pipelines to improve search relevance, and I shipped scalable FastAPI backends that handle 1M+ queries per month.

Before that, at Pixolat LLC, I developed and fine-tuned custom LLMs for chatbot applications, created AI automation tools that cut data extraction time, and operationalized multi-modal AI for more efficient data retrieval. I also reduced latency across AI pipelines with vector search and modern NLP tooling.

Alongside my work, I’ve built projects like an AI exam preparation platform with adaptive testing, a GPT-4-powered conversational AI system using Pinecone-based RAG and Flask APIs, and a real-time crime detection model using 3DCNNs. I like taking complex models all the way into systems that teams can actually use.

Experience

Work history, roles, and key accomplishments

Current

Senior AI/ML Engineer

Current

Paklogics

Apr 2022 - Present (4 years 4 months)

Engineered and launched NLP models for text analysis and sentiment classification, improving accuracy by 30%. Architected RAG pipelines and scalable AI-driven backend solutions using FastAPI and vector databases.

NLP Speech Processing Computer Vision fastAPI AWS Lambda Docker Kubernetes RAG Vector Databases Whisper TTS OpenAI Hugging Face

AI/ML Engineer

Pixolat LLC

Feb 2019 - Feb 2022 (3 years)

Developed and fine-tuned custom LLMs for chatbot applications, increasing user engagement by 40%. Integrated vision models for 3D image reconstruction and operationalized multi-modal AI solutions.

LLM NLP Computer Vision 3D Reconstruction OpenCV Vector Search Risk Assessment

Python Engineer

Ojiiz

Nov 2016 - Dec 2018 (2 years 1 month)

Created scalable Django web applications, ensuring 99% client satisfaction. Streamlined ETL pipelines and tuned database queries for improved efficiency.

Django HTML CSS JavaScript ETL MySQL MongoDB