Senior Machine Learning Engineer

Senior Machine Learning Engineer – LLMs

$250,000 - $320,000

Remote role or Hybrid NYC - San Francisco

Botify Tech has partnered with one of the top AI companies globally, currently looking to hire a Principal AI Engineer with a strong background in LLMs.

This business is one of the very few building LLMs from scratch, not just fine-tuning existing models. In just over five years, they have built multiple AI products that are now generating millions in revenue and are making a significant impact across the AI ecosystem.

What You’ll Be Working On

• Designing, training, and optimizing transformer-based LLMs from scratch
• Applying model compression and optimization techniques to reduce latency and cost in production
• Deploying and operating ML models at scale (batch & real-time)
• Defining and leading evaluation strategies for Agentic AI and RAG systems, translating business workflows into measurable success metrics
• Monitoring production KPIs such as latency, cost, reliability, and performance
• Collaborating closely with analytics teams and stakeholders to productionise ML models end-to-end
• Contributing to and improving ML infrastructure across the full model lifecycle
• Participating in code reviews to maintain high standards of code quality and consistency

Required Experience

• 3–4+ years of commercial experience delivering ML projects end-to-end
• Deep understanding of transformer architectures, training pipelines, and experimentation
• Hands-on experience deploying ML systems in production environments
• Proven experience with LLM training, optimization, or compression
• Strong engineering mindset with the ability to balance research and production constraints

This is a rare opportunity to work on real LLM engineering, not hype-driven projects.

For more information:

Email me directly at
pinto@botifytech.com