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I am an experienced Lead Machine Learning Engineer specializing in NLP and LLM-driven systems. My journey has taken me from research and prototyping to production and long-term maintenance, where I've made significant impacts through automation and scalability. I enjoy mentoring fellow engineers and leading projects that deliver measurable business outcomes.…

Peter Marinov

Data Scientist, AI Engineer, Project Manager, +3

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I am an experienced Lead Machine Learning Engineer specializing in NLP and LLM-driven systems. My journey has taken me from research and prototyping to production and long-term maintenance, where I've made significant impacts through automation and scalability. I enjoy mentoring fellow engineers and leading projects that deliver measurable business outcomes.…

Available to hire

I am an experienced Lead Machine Learning Engineer specializing in NLP and LLM-driven systems. My journey has taken me from research and prototyping to production and long-term maintenance, where I’ve made significant impacts through automation and scalability. I enjoy mentoring fellow engineers and leading projects that deliver measurable business outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Machine Learning Engineer at Zimmer Biomet

January 1, 2025 - Present

Co-designed and co-implemented an Azure-based complaints handling application to automate back-office tasks, achieving recall of over 80% on most tasks. Built rigorous data models with Pydantic, integrated with a SQL database for historical retrieval, and established an automated release pipeline with unit, integration, and validation tests. Implemented Docker-based containerization and production monitoring via Application Insights; authored infrastructure as code using Pulumi.

Senior Data Scientist at Aviva

January 1, 2025 - January 1, 2025

Optimised entity extraction from PDFs through data cleaning, preprocessing, embeddings model fine-tuning and model selection, boosting recall/precision and processing speed. Prototyped a vision-based text extraction tool using Llama3.2 vision with Ollama hosting and evaluated embedding models such as ColBERT and SPLADE. Improved an email classifier with RoBERTa, increasing F1-score by 40% and routing emails to relevant departments.

Lead Data Scientist at Measmerize

January 1, 2023 - January 1, 2023

Led R&D for Measmerize, developing a bespoke digital garment fitting service. Designed features from questionnaire answers and a dataset of measurements; iterated for model selection and optimized for business metrics. Conducted online A/B testing for model selection. Achieved sub-400ms response times with model hosting on AWS Lambda and AWS API Gateway; model monitoring via AWS CloudWatch. Supervised a Data Analyst.

Senior Data Scientist at Aviva

January 1, 2023 - January 1, 2025

Intelligent PDF extraction: optimized entity extraction from PDFs through data cleaning, embeddings model finetuning and model selection (BERT, T5, HuggingFace, Finetuning PEFT). Prototyped a vision-based text extraction tool using Llama3.2 and Ollama. Evaluated embedding models such as ColBERT and SPLADE. Email classifier: improved a rule-based classifier with LoRA/PEFT and fine-tuned a ROBERTa-based model to route emails with a 40% F1-score improvement.

Lead Data Scientist at Measmerize

January 1, 2020 - January 1, 2023

Led the development and R&D for a bespoke digital garment fitting service; reduced online return rates for tool users by 40%. Designed features from questionnaire answers and measurement data; iterated for model selection, feature crafting and business metric optimization; conducted online A/B testing; achieved sub-400ms response time with hosting on AWS Lambda and AWS API Gateway; model monitoring via AWS CloudWatch; supervised a Data Analyst.

Machine Learning Engineer at Fundamentals

January 1, 2022 - December 31, 2022

Developed a TensorFlow-based fault detection model for the UK power network, enhancing model performance with real-world data.