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Dr. Mirza KlimentaDM

Dr. Mirza Klimenta

Senior Data Scientist, Machine Learning, AI

€720/day
München, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Dr. Mirza

I am a Senior Data Scientist / ML Engineer / GenAI Engineer with a PhD in Computer Science and many years of experience in the development, scaling, and productive operation of machine learning and AI systems. My focus is on classic machine learning, deep learning, LLMs, Retrieval-Augmented Generation (RAG, including Graph-RAG), Agentic AI, Recommender Systems, and Knowledge Graphs.

I have implemented end-to-end ML pipelines – from data preparation (ETL/ELT, Spark, Hadoop), feature engineering, model training and evaluation, to deployment, monitoring, and optimization. My projects include a recommender system in production (ARD Audiothek), fraud and anomaly detection, pricing engines, graph-based prediction models, and LLM-powered assistant systems for enterprise applications.

Technologically, I primarily work with Python (PyTorch, TensorFlow/Keras, scikit-learn, XGBoost/LightGBM), Graph Neural Networks (PyTorch Geometric), vector databases (Milvus, Pinecone), and streaming technologies (Kafka). In the GenAI environment, I have practical experience with prompt engineering, RAG architectures, LoRA/PEFT, LLM evaluation, retrieval optimization, and multi-agent systems (LangChain, LangGraph, LlamaIndex, dspy).

I have extensive cloud experience:
AWS (SageMaker, Bedrock, Lambda, ECS, Redshift, Personalize),
GCP (BigQuery, Vertex AI, Recommender Systems, Agent Development Kit),
as well as Azure Databricks for distributed data processing. Containerization and operation are handled with Docker and Kubernetes, among others.

I combine strong analytical skills with an engineering mindset, work confidently in agile teams, and reliably bring complex AI systems from idea to production.
  • German

    Fluent

  • English

    Fluent

  • Bosnian

    Native or bilingual

  • Serbian

    Native or bilingual

  • Croatian

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Confidential
    Senior AI Engineer - RAG, Agents
    September 2025 - March 2026 (6 months)
    Objective: Creation of a multi-agentic system that helps a media house in their daily business. The first project was creating a RAG system via Google Filestore, ingesting data from more than 80 websites (belonging to this media house) - this system was then queried by the end uses, who would ask various questions about the new content (series, shows, movies, books). Another project was developed with Google Agent Development Kit (ADK), and was a multi-agentic system communicating with RAG, on top of which I build an analysis layer, reporting about the recent job posts suitable for the media house. I was responsible for the design and end-to-end development,
    including deployment at GCP.
    RAG Python AI Agents Agentic AI LLM
  • Confidential
    Senior AI Engineer - Deep Research, Knowledge Graph
    November 2024 - June 2025 (7 months)
    Objective: To create a multi-agentic system, supported by a Knowledge Graph, that automates the process of drafting a research paper. The system used multiple experts(OpenAI models) that ”collaborated” during the process of document drafting. The whole process was supported by a Knowledge Graph out of which we extracted useful information. Technologies used for this framework: LangChain, LangGraph, Smolagents, LlamaIndex, dspy. The project involved the use of Terraform and GitHub Actions (CI/CD Pipeline), via AWS. The initial application was deployed as a Streamlit app. I was responsible for the AI Engineering part, Knowledge Graph creation, and also deployment in AWS. This was a GenAI Engineer role, also involving Prompt Evaluation and Retrieval Optimization (Langfuse).
    RAG LLM AI Agents Langchain LangGraph
  • Confidential
    Senior Data Scientist - Computer Vision, Object Detection
    February 2024 - February 2025 (1 year)
    Objective: given a spectral image that depicts the value of the sensors’s readings,
    classify the signals and identify novelties (anomalies).
    Approach: Given that there was not sufficient labeled data, I had to rely on self-
    supervised machine learning paradigms. To satisfy the customer’s request for fast
    processing, I utilized one of the YOLO architectures. The system was developed
    with the mmyolo framework.
    Machine Learning Data Science Computer Vision

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Education

  • Doctor of Philosophy - PhD, Computer Science
    University of Konstanz
    2012
    Doctor of Philosophy - PhD, Computer Science

Skill set

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