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Dennis K.

AI & Machine Learning Engineer · Senior

United States · Rate on request

Professional Overview

I specialize in AI data training, data annotation, quality assurance, and Large Language Model (LLM) evaluation. My experience includes reviewing AI-generated responses for accuracy, relevance, instruction-following, clarity, and consistency; applying annotation guidelines; identifying errors; and maintaining high-quality standards across data projects. I am skilled at evaluating model outputs, following structured rubrics, documenting findings, and supporting quality control through careful review and calibration. I also have familiarity with SQL, data modeling, experimentation, and data science documentation. I learn new tools quickly, work independently in remote environments, and bring strong analytical thinking, attention to detail, and a commitment to producing reliable, well-structured data that improves AI system performance.

Areas of Expertise

AI & Machine Learning Engineers

Design, train, and ship production ML models — from data pipelines to model inference at scale. Covers supervised learning, neural networks, LLM integration, and model optimisation.

NLP & Prompt Engineering

Build natural language processing systems, fine-tune large language models, and craft reliable production prompts for AI-powered products.

Open to

Freelance Full-time Part-time Contract

AI Expertise

AI & Machine Learning Engineers NLP & Prompt Engineering AI Training & Data Annotation AI Safety & Governance

Skills

Python SQL Computer Vision Reinforcement Learning Prompt Engineering

Experience Level

Senior

Current location

United States

Time Zone

Los Angeles UTC-8

Primary Work Language

English

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