HackerRank

Staff AI Scientist

HackerRank

full-time

Posted on:

Location Type: Hybrid

Location: BangaloreIndia

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About the role

  • Design, prepare, and curate high-quality evaluation datasets with defensible methodology.
  • Define criteria for dataset construction, ensuring statistical rigor, reproducibility, and fairness.
  • Develop new metrics and evaluation frameworks to measure model performance in nuanced ways.
  • Evaluate LLMs and other pre-trained models using carefully chosen datasets and metrics.
  • Build scalable pipelines for training, fine-tuning, and benchmarking models.
  • Contribute to projects involving fine-tuning, retrieval-augmented generation (RAG), and other adaptation methods.
  • Partner with product and engineering to align scientific rigor with business outcomes.
  • Define evaluation standards and ML lifecycle practices that raise the bar across the company.
  • Mentor scientists and engineers, guiding best practices in experimentation, statistics, and ML development.

Requirements

  • Master’s degree (PhD preferred) in Computer Science, Statistics, Machine Learning, or a related quantitative field.
  • Strong background in mathematical and statistical foundations of machine learning (probability, linear algebra, optimization, experimental design).
  • Demonstrated experience in end-to-end ML lifecycle: dataset preparation, model training, evaluation, deployment, and monitoring.
  • Proven expertise in evaluation dataset design and metric creation, not just using existing benchmarks but knowing when and how to improve them.
  • Experience with LLM evaluation, fine-tuning, and RAG, with the engineering skills to build production-ready pipelines.
  • Track record of strategic impact at a staff or principal level setting evaluation and research standards across teams.
Benefits
  • Equal opportunity employer
  • Affirmative action employer

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
machine learningstatistical rigordataset preparationmodel trainingmodel evaluationmodel deploymentfine-tuningretrieval-augmented generationevaluation metricsexperimental design
Soft skills
mentoringcollaborationstrategic impactguiding best practicescommunication
Certifications
Master’s degreePhD