Open to opportunities

Ratko User

@ratkouser

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AI engineer specializing in LLM integrations, RAG systems, and production ML deployments.

Turkey

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What I'm looking for

I seek roles building production LLM/RAG systems and scalable ML pipelines, collaborating cross-functionally to deliver measurable business impact and mentor junior engineers.

I am an AI engineer with hands-on experience designing and deploying LLM-powered tools, RAG pipelines, and production ML systems across healthcare, legal, fintech, and SaaS domains. I combine ML fundamentals with practical engineering to build reliable, scalable solutions using LangChain, TensorFlow, Pinecone, and OpenAI APIs.

At MindLayer Solutions I delivered document Q&A systems, internal chatbots, and prompt orchestration workflows that cut research time and improved resolution speed, while leading client workshops to drive AI adoption. Previously, I trained and fine-tuned deep learning models for document classification, facial recognition, and object detection, improving baseline accuracies and optimizing training workflows.

I prioritize data-driven problem solving, cross-functional collaboration, and production readiness—implementing monitoring, efficient GPU usage, and CI/CD practices to ensure models deliver measurable business impact.

Experience

Work history, roles, and key accomplishments

AI Engineer

MindLayer Solutions

Jan 2024 - Nov 2025 (1 year 10 months)

Designed and deployed LLM-powered tools using OpenAI API, LangChain, and Pinecone, delivering a document Q&A system that reduced legal research time by 35% and saved ~$22,000 annually; built a RAG chatbot that improved issue resolution speed by 47%.

OpenAI API LLMs (LangChain Pinecone RAG Prompt Engineering GPT 4 Deployment

Machine Learning Engineer

NexaVision Analytics

Nov 2021 - Dec 2023 (2 years 1 month)

Trained and fine-tuned deep learning models (CNN, LSTM, Transformers) for document classification and detection, raising baseline accuracy from 72% to 89% and reducing training time by 40% through GPU optimizations.

TensorFlow Keras CNN Transformers & Model Tuning

AI Researcher

DeepMetric AI Solutions

Jan 2021 - Nov 2022 (1 year 10 months)

Contributed to NLP models for legal document classification and multilingual summarization, supported RAG pipeline design and LangChain prototypes, and assisted in model evaluation using TensorFlow and Hugging Face.

Python TensorFlow Hugging Face BERT RAG Lang Chain NLP

Education

Degrees, certifications, and relevant coursework

Istanbul Medipol University

Bachelor of Science, Computer Engineering

2016 - 2020

Completed a Bachelor of Science in Computer Engineering with coursework and projects in software development, algorithms, and applied machine learning.