Senior Principal AI Researcher - Domain Model Innovator

Articul8 AI; Dublin (CA); On-site; USD 180,000 - 280,000; Full time

Job summary

Articul8 AI is seeking a Principal Research Scientist to define how we build, evaluate, and scale domain-specific models as a durable source of competitive advantage. You will lead research across the full model development lifecycle, from data strategy to post-training and evaluation.

You will architect agentic research infrastructure and guide researchers, balancing technical vision with practical deployment, while mentoring teams and shaping platform strategy.

Qualifications

• PhD or MSc in Computer Science, ML, NLP, or related field.
• 10+ years in AI/ML research with production impact; 4+ years with LLM-based systems.
• Deep hands-on experience across the full model development lifecycle: pretraining, fine-tuning, post-training, production evaluation.
• Experience training/adapting models on large GPU clusters with distributed frameworks (DeepSpeed, Megatron-LM).
• Proficient in Python and PyTorch; capable of writing and reviewing code.
• Strategic leadership shaping organizational research direction and investments.

Responsibilities

• Set company-level technical direction for domain-specific model strategy and evaluation standards.
• Architect agentic model development paradigm and research infrastructure for deep researcher productivity.
• Lead research on model adaptation, data curation, post-training methods, and training dynamics with parallel experiments.
• Shape model strategy across domains using agent-driven market analysis and customer value signals.
• Define evaluation strategy with robust benchmarks and real-time investment decisions.
• Coordinate cross-cutting research tracks to multiply organizational capability.
• Influence platform-level decisions on lifecycle, portfolio, and release criteria.
• Mentor senior researchers and shape hiring; maintain high-impact research output.

Skills

Python

PyTorch

Deep learning

Experiment design

Education

PhD or MSc in Computer Science, ML, NLP, or related field

Tools

DeepSpeed

Megatron-LM

PyTorch

Job description

Articul8 AI is seeking a Principal Research Scientist to define how we build, evaluate, and scale domain-specific models as a durable source of competitive advantage. You will lead research across the full model development lifecycle, from data strategy to post-training and evaluation.

You will architect agentic research infrastructure and guide researchers, balancing technical vision with practical deployment, while mentoring teams and shaping platform strategy.