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Senior AI Researcher

Millennium

$160,000 - $250,000
Aug 30, 2025
New York, NY, US
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Transform the latest breakthroughs in large language models (LLMs), retrieval-augmented generation (RAG), and agentic AI into high-impact product capabilities.

Requirements

  • Proven track record of shipping products or features that leverage LLMs, generative AI, or other large-scale machine-learning models.
  • Expert-level Python programming skills and hands-on experience with modern ML frameworks.
  • Practical experience with cloud environments (AWS, GCP, or Azure) and big-data technologies (e.g., Spark, Elasticsearch, vector databases).
  • Solid foundations in algorithms, data structures, optimization, and statistical learning.
  • Familiarity with MLOps tooling (MLflow, Airflow, SageMaker) and best-in-class CI/CD pipelines.
  • Experience leading cross-functional teams or initiatives that brought research prototypes to production at scale.
  • Domain expertise in reinforcement learning-from-human-feedback (RLHF), prompt engineering, or vector search.

Responsibilities

  • Translate recent advances in LLMs, RAG pipelines, and agentic frameworks into production-ready solutions that solve real business problems.
  • Design, prototype, and validate AI/ML models; run controlled experiments; and iterate quickly toward deployable systems.
  • Own the product lifecycle for AI initiatives: define requirements, scope MVPs, set timelines, and align deliverables with strategic objectives.
  • Guide and mentor junior data scientists and engineers in experimental design, model selection, and rigorous evaluation.
  • Collaborate with data engineering to build and maintain robust real-time and batch data pipelines that power AI workloads.
  • Establish best practices for model evaluation, testing, monitoring, and MLOps (CI/CD, automated retraining, observability).
  • Conduct structured literature reviews and competitive analyses to keep the team current on emerging techniques and tools.

Other

  • Bachelor’s degree in Computer Science or a related field is required
  • Ph.D. in Computer Science, Machine Learning, Artificial Intelligence, or a closely related field is preferred
  • 5+ years of post-graduate, industry or applied-research experience developing and deploying AI/ML solutions.
  • Exceptional written and verbal communication skills, with the ability to influence stakeholders across disciplines.
  • Communicate technical concepts and research findings to both technical and non-technical audiences, converting insights into actionable product roadmaps.