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Wallet icon Coin icon Rate 6 400 € - 8 000 € / month info
Timer icon Form of cooperation Full-time / 40% Remote
Briefcase icon Sector Telco
Location icon Location Bratislava

info The reward is calculated upon delivery of 20 MD per month (1MD=8h)

Project duration 10 months with the possibility of extension
Period of cooperation 01.12.2025 - 30.09.2026
Start date 01.12.2025 asap, or by agreement
Technology
  • Python
  • GCP Google Cloud Platform
  • LLM Large Language Model
  • PyTorch
  • NLP Natural Language Processing
  • Hugging Face Transformers
  • LangChain
Languages
  • English flag English - active, B2/C1/C2
  • Slovak or Czech flag Slovak or Czech - native

Project description

  • Collaboration on the use of LLM and NLP technologies for processing data from call centers and chats, as well as for building pipelines for search, summarization, classification and automated messages
  • Responsibility for the architecture design, fine-tuning of models and their deployment into a production environment in collaboration with the internal team of data scientists
  • Tasks and responsibilities:
    • Design, fine-tuning and deployment of LLM solutions (retrieval-augmented generation, summarization, question answering, NER, prompt engineering)
    • Creating pipelines for data processing (data preprocessing, embedding, vector indexing, LLM inference)
    • Processing text data from call transcripts and chat logs (speech-to-text cleaning, segmentation, sentiment analysis, intent detection)
    • Implementation of tools for automated reporting and summarization
    • Model optimization in terms of latency, cost and accuracy
    • Preparation and deployment of models and APIs into a production environment
    • Close cooperation with the Data Science and ML Engineering team at Orange Slovakia
       
  • Collaboration possible in hybrid REMOTE + ON-SITE mode, with ON-SITE [Bratislava] 3 days a week, or as agreed on the project / REMOTE
  • Final reward depends on the candidate's experience

Project requirements

  • min. 2–3 years of experience with the design and implementation of NLP/LLM solutions
  • Excellent knowledge of Python
  • Knowledge of:
    • tools for vector search (FAISS, Chroma, Pinecone, Elasticsearch)
    • principles of model optimization (performance, cost, accuracy)
  • Experience with:
    • libraries Hugging Face Transformers, LangChain, PyTorch or TensorFlow
    • working with unstructured text data (chats, ASR transcripts, noisy data)
  • Experience with:
    • knowledge of MLOps – model serving, monitoring, CI/CD for ML
    • experience with GCP or other cloud environments
    • experience in the Telekom sector
    • overview of LLM evaluation and RAG pipeline optimization
       
  • Very good organizational and communication skills
  • Analytical and conceptual thinking
  • Team player
  • Ability to learn quickly
  • leadership
     
  • Tech stack
    • Python, LangChain, Hugging Face Transformers,
    • PyTorch / TensorFlow
    • Vector DB (FAISS, Chroma, Pinecone)
    • Prompt Engineering, RAG, LLM APIs, Speech-to-Text
    • Sentiment/Intent Analysis
    • MLOps, GCP
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