Senior ML Research Engineer

  • Level: Senior
  • Type: B2B
  • English Level: Upper-Intermediate
  • Location: Poland, Romania, Bulgaria
  • Skills: AI/ML LLM Python

Responsibilities

  • Conduct cutting-edge research on agentic AI systems exploring new methods in reasoning, memory, planning, and multi-agent collaboration and translate findings into production-ready prototypes.
  • Design, fine-tune, and evaluate large language models and neural networks for modular agent behavior
  • Build robust ML pipelines (data ingestion, feature engineering, model training, serving, monitoring)
  • Implement evaluation frameworks, A/B testing, and performance metrics to quantify agent effectiveness
  • Ensure reproducibility, traceability, and compliance across ML lifecycle
  • Collaborate with backend engineers to define inference service SLAs and efficient real-time ML delivery
  • Mentor junior ML teammates and establish team-level best practices

Requirements

  • 5+ years as an ML Engineer or applied ML researcher with production model deployment experience
  • Strong Python skills, experience with ML frameworks (TensorFlow, PyTorch) and LLM tooling (HuggingFace)
  • Familiarity with data pipelines, SQL, cloud platforms (AWS)
  • Solid understanding of model evaluation, A/B testing, and ML performance metrics
  • Excellent collaboration skills with product, backend, and data teams

Nice to Haves

  • Prior work with conversational agents, retrieval-augmented generation, or multi-model orchestration
  • Experience with vector search stacks (e.g. Pinecone, FAISS)
  • Reinforcement Learning experience
  • Startup experience and ability to navigate ambiguity and shape technical direction

Why You Should Join

  • Competitive equity & pay – get in early and own what you build.
  • Work closely with experienced founders with a proven startup track record.
  • Move fast, ship fast – no corporate bureaucracy.
  • Shape the AI revolution in healthcare – massive market, untapped potential

    We’re moving fast and need a founding engineer who thrives in early-stage chaos and loves shipping quickly. If you want to own technical decisions, build 01, and shape the future of AI in healthcare, this is your role.

Yuliya Baranovska

Recruiter

    Got interested? Apply right now!


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