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Andrew Chauzov

@andrewchauzov

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ML Engineer | NLP, LLM

Serbia

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What I'm looking for

Seeking opportunities to develop and deploy end-to-end ML solutions, with expertise in both predictive modeling and production systems.

I create high-impact DS/ML/NLP solutions that transform ideas into actionable, business-driving implementations. I’ve helped companies boost revenue, attract new clients, and expand their product lines by leveraging data science and machine learning techniques.

My passion for data modeling started during my Master's thesis and has evolved into nearly 5 years of data analytics experience in the marketing and power industries, where I’ve empowered companies to become more data-driven and make better decisions.

As an independent DS/ML consultant, I’ve successfully delivered projects across various domains, from startups to established enterprises, applying ML to solve real-world business challenges.

Currently, I’m focused on NLP and exploring the transformative potential of Generative AI.

LLM & GenAI: GPT, LlaMa, Claude, RAG (Langchain, LlamaIndex), Vector DBs (Qdrant), PEFT, LoRA
NLP & ML: BERT, USE, Transformers, Hugging Face, PyTorch, Keras, scikit-learn, LightGBM
MLOps & Cloud: AWS, GCP, Docker, Kubernetes, FastAPI, Airflow, CI/CD, MLFlow, Weights & Biases

Experience

Work history, roles, and key accomplishments

Current

Independent ML Consultant

Current

Independent Consulting Services

Nov 2023 - Dec 2024 (1 year 1 month)

Deliver advanced NLP/LLM solutions driving measurable business impact across industries.

- Achieved 90% query relevance for RAG-based recommendation engine using LlamaIndex/Qdrant.
- Showed 95% accuracy by implementing a content filtering system using a custom LLM model.
- Increased from 70% to 85% AI code detection accuracy via AST parsing and LoRA fine-tuning.

NLP Natural Language Processing (NLP)Natural Language Processing LLM Large Language Models RAG Architecture Generative AI

Data Scientist & ML Engineer

CRED

Nov 2020 - Oct 2023 (2 years 11 months)

Engineered AI initiatives driving revenue growth across product verticals.

- Generated 10x ROI by designing talent scoring models using advanced feature engineering.
- Reduced acquisition costs 25% through PL function matching system, achieving 10x speedup.
- Improved data quality 15% by implementing a ML enrichment pipeline for 450M+ records.

Machine Learning NLP Natural Language Processing (NLP)Natural Language Processing LLM Large Language Models Generative AI MLOps

Data Scientist

Independent Consulting Services

Jan 2017 - Jul 2022 (5 years 6 months)

Developed end-to-end machine learning solutions for startups and small businesses, driving cost savings, efficiency, and revenue growth.

Algorithms Neural Networks Predictive Analytics

Middle/Senior Data Analyst

Association 'Non-Profit Market Council'

Feb 2012 - Dec 2016 (4 years 10 months)

Engaged in data-driven initiatives for a power energy market regulator, achieving 2.5-10% revenue growth through data modeling and enrichment while leading team mentorship and stakeholder collaboration after promotion.

Data Analysis Project Management Stakeholder Management Mentoring Statistical Modeling

Junior Data Analyst

BrandScience

Jul 2011 - Feb 2012 (7 months)

Collaborated on data-centric strategies, developed econometric and predictive solutions, and automated data collection processes (boosting efficiency 3x), resulting in a 10% ROI improvement for a top-3 telecom company.

Data Analysis SQL Statistical Modeling