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September 3, 2026
Senior Machine Learning Engineer
Senior • Remote
22,000 - 30,000 PLN/yr
Warsaw, Poland
Apply now
What makes this role stand out
- Work at the intersection of cutting-edge AI research and real-world delivery, helping turn GenAI capabilities into production-ready products and business value.
- Build ML/LLM pipelines; integrate, evaluate, and optimize models and agents.
- Apply deep learning, NLP, or CV expertise in hands-on GenAI and LLM work.
- Use techniques such as fine-tuning, prompting, quantization, and LoRA to adapt models for production.
Why it’s worth it
- Work with LLMs, agentic frameworks, MCP-based integrations, RAG, inference optimization, and fine-tuning.
- Build production models and agents that reach real users, rather than only proofs of concept.
- Collaborate with Data Scientists, Software Engineers, and MLOps specialists to deliver end-to-end AI solutions.
Project examples
- Train multimodal LLMs with molecular embeddings as a chemical modality.
- Build AI voicebots that double conversion rates.
- Deliver applied research and performance-optimization projects, including multi-hydrophone underwater sound recognition.
- Build AI systems and training pipelines for drug discovery, AI security, and intelligent agentic platforms.
The ideal candidate
- Has 5+ years of ML engineering experience and experience working with models in production environments.
- Has strong software engineering fundamentals for designing clean architectures and cloud-native solutions in the Python ecosystem.
- Brings hands-on expertise with Large Language Models (LLMs) and Generative AI, including RAG systems, agentic workflows, model integration, and inference optimization for latency, cost, and scalability.
- Has experience designing and implementing AI agents and orchestrating multi-step LLM systems with LangChain, LlamaIndex, DSPy, and MCP-compatible ecosystems.
- Can design and implement end-to-end ML/LLM pipelines, from data preparation and fine-tuning to production-grade APIs and agent-based applications.
- Has solid foundations in machine learning frameworks and deep learning libraries, including PyTorch, scikit-learn, TensorFlow, and Hugging Face.
- Has experience with at least one public cloud platform—AWS, GCP, or Azure—and its AI/ML services.
- Knows how to deploy and monitor models and AI systems, including model CI/CD, logging, observability, and quality monitoring.
- Communicates clearly and collaborates effectively with technical and business/client teams.
Nice to have
- GenAI evaluation and observability experience with LangSmith, Ragas, Phoenix, or Braintrust.
- Vector database and retrieval-system experience with Pinecone, FAISS, Weaviate, or Qdrant.
- Ability to analyze scientific papers and combine insights with original ideas.
- Prompt-engineering experience and experience building simple AI user interfaces with Streamlit or Gradio.
- Experience using AI coding assistants such as Claude Code, Codex, Cursor, or Windsurf, including awareness of their limitations, risks, and best practices.
We offer
Impactful AI projects
- Tackle industry-grade challenges, from LLMs for drug discovery to GenAI on edge devices, AI voicebots, and open-source initiatives.
- Collaborate directly with AI ecosystem partners for early access to tools, production testing, and applied know-how.
- Contribute to open-source initiatives such as ragbits.
Growth & Knowledge Sharing
- Join AI specialists who share expertise through Tech Talks, workshops, and internal training.
- Present work at conferences, run experiments, and stay current with emerging technology.
- Choose a career path and receive development support.
Flexibility & Culture
- Work fully remote, from offices, or from coworking spaces.
- Flexible working hours.
- Burnout-prevention culture and support for work-life balance.
- Onboarding with a buddy from day one.
- High-end equipment, including laptops, dual monitors, and professional peripherals.
- Access to an AI development suite including ChatGPT, Claude, Gemini Advanced, GitHub Copilot, Cursor AI IDE, Claude Code, NotebookLM, and emerging AI tools.
- Agile teams, fast decision-making, and space to experiment.
Basic Benefits
- Private medical care and a Multisport card.
- Company library, onsite English lessons, and a dedicated training budget.
- Free team lunches, fresh fruit, and snacks.
- Team-building activities and holiday celebrations.
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