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AI Engineer — LLM / VLM

Remote · Poland Full-time

Role Overview

We are looking for an AI Engineer specializing in Large Language Models (LLMs) and Vision-Language Models (VLMs) to design, develop, and deploy production-grade AI solutions. The ideal candidate should have strong experience with LLM/VLM architectures, prompt engineering, RAG, fine-tuning, multimodal AI, and model serving.

Key Responsibilities

  • Develop and deploy AI applications using LLMs and VLMs.
  • Build RAG pipelines involving document ingestion, chunking, embeddings, retrieval, reranking, and generation.
  • Work with models such as GPT, Claude, Gemini, Llama, Mistral, Qwen, and multimodal/VLM models.
  • Develop multimodal solutions involving text, images, PDFs, charts, tables, and documents.
  • Perform prompt engineering, supervised fine-tuning, LoRA/QLoRA, and model evaluation.
  • Build AI agents and tool-calling workflows where appropriate.
  • Optimize inference for latency, throughput, memory, and cost.
  • Develop APIs and production services using Python, FastAPI, Docker, and cloud platforms.
  • Implement evaluation frameworks to measure accuracy, hallucination, relevance, latency, and safety.
  • Collaborate with ML engineers, software engineers, and product teams to take prototypes into production.

Required Skills

  • Strong Python programming and software-engineering fundamentals.
  • Hands-on experience with LLMs and/or VLMs.
  • Strong understanding of Transformers, attention mechanisms, tokenization, embeddings, and inference.
  • Experience with PyTorch and Hugging Face Transformers.
  • Experience building RAG systems and vector-search solutions.
  • Knowledge of prompt engineering and LLM evaluation.
  • Experience with APIs, REST services, Git, Docker, and CI/CD.
  • Familiarity with vector databases such as FAISS, Milvus, Pinecone, Weaviate, or pgvector.
  • Understanding of cloud AI infrastructure, preferably AWS/Azure/GCP.

VLM / Computer Vision Skills

  • Experience with multimodal models such as Qwen-VL, LLaVA, Gemini, GPT vision models, or similar.
  • Understanding of image preprocessing and document/image understanding.
  • Experience with OCR, document intelligence, image classification, object detection, or visual question answering is a plus.
  • Ability to build pipelines combining vision + language + retrieval.

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