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Data Scientist

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Onsite

Data Scientist

ARNIA

Data Scientist

Skills

Data ScienceRMachine LearningAI

2 months ago

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Important information


Location:

Bucharest, Romania

Work mode:

Onsite

Published on:

1 September 2026

What they need


You’ll work on complex evaluation challenges across vision, language, and reasoning, developing metrics, datasets, and experimental approaches that help assess the quality and capabilities of next-generation AI models. You will be part of a small international R&D team, contributing to the evaluation of advanced AI systems and exploring new approaches to measuring their performance.

Key Responsibilities

  • Design and validate robust evaluation metrics and ground-truth datasets for advanced AI systems
  • Assess model accuracy, false positives and false negatives, and overall evaluation quality
  • Refine metric normalization and scoring methodologies to ensure consistent and meaningful evaluation
  • Develop LLM-based evaluation approaches and methodologies for incorporating human feedback
  • Explore and define new evaluation dimensions, including complexity, prompt adherence, and other emerging measures of AI performance

Requirements

  • 5+ years of professional experience in Data Science, AI, Machine Learning, or a related field
  • Strong data science, analytical, and experimentation skills
  • Hands-on experience with AI/LLM evaluation and performance analysis
  • Experience designing evaluation metrics, scoring methodologies, and ground-truth datasets
  • Understanding of agentic AI workflows and multi-step AI systems
  • Experience with 3D, geometry, or rendering is considered a plus

Share this job:

relocation package

competitive compensation packages

performance bonuses

flexible working hours

job rotation

learning through Arnia Academy

attractive projects

trainings

international work experience

referral program

medical benefits

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