Manager Data Scientist (AI)

TL;DR

Manager Data Scientist (AI): Shaping the ML and experimentation strategy for an engagement system, including ML models and AI agents that produce dynamic, personalized nudges. Focus on designing, building, and evaluating systems that operate at scale, and leading data scientists.

Location: Remote (Brazil). This role is only open to candidates in Brazil.

Company

hirify.global is revolutionizing workplace wellness, connecting employees worldwide to fitness, mindfulness, therapy, nutrition, and sleep partners through a single subscription.

What you will do

• Design and develop ML models for outreach personalization, including contextual bandits, reinforcement learning, and classification models.
• Design and develop AI agents that generate dynamic, personalized nudge content and conversational interventions.
• Design and analyze large-scale A/B tests and experimentation frameworks.
• Collaborate on the design of data pipelines and event schemas that feed the product.
• Define and implement robust monitoring frameworks for product engagement, retention, opt-outs, and intervention fatigue.
• Lead, mentor, and grow the data scientists of the team, setting technical direction and fostering collaboration.

Requirements

• BSc., Master’s or PhD degree in Computer Science, Data Science, Machine Learning, Statistics, or a related field.
• At least 8 years of professional experience in Data Science, Machine Learning, or Applied AI roles.
• At least 3 years of experience in people management, leading and developing data science teams.
• Strong proficiency in Python and experience with ML frameworks (e.g., Vowpal Wabbit, PyTorch, or similar).
• Strong foundation in experimentation, A/B testing, and large-scale experimentation design and analysis.
• Experience working with Generative AI systems in production environments.
• English: B2 required.

Nice to have

• Experience applying ML techniques such as contextual bandits, reinforcement learning, and classification models in production systems.
• Familiarity with real-time or near-real-time decisioning systems for personalization.
• Experience designing data pipelines or collaborating closely with data engineering teams.
• Background in consumer products or digital health.

Culture & Benefits

• Free hirify.global Gold+ membership with access to onsite gyms and studios, digital fitness programs, and online wellness resources; includes up to three family members.
• Wellz emotional wellbeing program offering personalized journeys and 52 individual therapy sessions per year.
• Health, dental, and life insurance.
• Flexible First company with hybrid and remote options, including home office reimbursement.
• Flexible schedule allowing employees to define schedules aligning with time zones, team needs, and personal routines.
• Paid time off, including vacations after 6 months, additional days based on tenure, and an extra birthday holiday.
• 100% paid parental leave for all new parents, with extended leave for parents giving birth and a ramp-back period.
• Access to world-class platforms, interactive sessions, and a personalized development roadmap for career growth.