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Senior / Lead Research Scientist

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Inworld AI

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Location:
Serbia

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

A year ago, reliably working agentic systems barely existed. Nobody has a decade of experience here. So we're not screening for a resume template — we're looking for strong people from varied backgrounds who learn fast, thrive in ambiguity, and can show us what they've built, broken, and understood. We hand you unclear problems and expect you to make them clear. We value researchers who say "I don't know yet" — and then design the experiment that finds out. We treat evaluation as a first-class research product, not a box to check before launch. Impact comes before publications though we support sharing work that moves the field forward. Your work should be visible. Flat structure, fast iterations, minimal process theater.

Requirements:

  • Foundation models: training, new architectures, RL, reward modeling, scaling
  • Evaluation: benchmarks, eval loops, quality measurement, LLM-as-judge, failure analysis
  • Frontier topics: multimodal models, agents, tool use, test-time compute, world models
  • Published research at ICML, ICLR, NeurIPS, EMNLP, ACL, or AAAI
  • PhD in ML/NLP — or equivalent practical experience you can point to
  • Public work: non-trivial AI side projects, interdisciplinary experiments, open-source contributions
  • Full-stack research ownership: you frame the question, run the experiments, write the paper, ship the result
  • Professional fluency in English (written and spoken)

Additional Information:

Job Posted:
March 25, 2026

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