Head of AI and ML (Fully Remote)

Xplor; United States; Remote; USD 180,000 - 260,000; Full time

Job summary

Xplor provides cloud-based technology solutions for small and medium-sized businesses, including payment processing. The company is unified by its purpose of helping people succeed.

The role leads enterprise eval methodology, builds scalable ML systems, and partners with product and BU teams to ship high-impact models in production. The ideal candidate has 12+ years in data science or ML, 4+ years leading teams, and a track record of deploying LLM/agentic systems with robust eval suites.

Qualifications

• 12+ years in data science or ML with 4+ years leading teams.
• Has shipped LLM or agentic systems to production with eval suites.
• Deep experimental design, causal inference, and strong statistics.

Responsibilities

• Set the enterprise eval methodology: golden-set design, sampling, labelling and inter-rater agreement, LLM-as-judge validation.
• Build and run churn, payment-recovery, and demand forecasting models, choosing the right tool per task.
• Build evidence behind model routing: accuracy, cost and latency per task.

Skills

Data science leadership

LLM deployment

Experimental design

Causal inference

Statistics

Job description

• Set the enterprise eval methodology: golden-set design, sampling, labelling and inter-rater agreement, LLM-as-judge validation.
• Build and run churn, payment-recovery, and demand forecasting models, choosing the right tool per task.
• Build evidence behind model routing: accuracy, cost and latency per task.

Qualifications:

• 12+ years in data science or machine learning with 4+ years leading teams.
• Has shipped LLM or agentic systems to production with eval suites.
• Deep experimental design, causal inference, and strong statistics.

Competencies and behaviors:

• Evidence first: brings a number with its error bar.
• Builder, not only researcher: measures success by what reaches customers.
• Pragmatic: picks simplest model that clears the bar; says no to research without BU sponsor.

Xplor

Xplor provides cloud-based technology solutions for small and medium-sized businesses, including payment processing. The company is unified by its purpose of helping people succeed.