At Wellhub, a corporate wellness platform that connects employees to the best partners for fitness, mindfulness, therapy, nutrition, and sleep, you have the opportunity to build a career in a high-growth tech company that places wellbeing at the foundation of its culture.
The Opportunity
We are hiring a Data Scientist to our GenAI team in Portugal. As a Data Scientist specializing in Generative AI, you will play a crucial role in evaluating, measuring, and assessing Agentic systems that have as main goal improving the wellbeing of all Wellhub users.
Metric Design & Analysis: Collaborate with product managers and engineering teams to define and measure metrics for user engagement, satisfaction, and chatbot effectiveness;
Data Preparation: Perform data cleansing, transformation, and quality analysis on product data;
Evaluation and Testing: Assist and design robust evaluation metrics to assess agentic AI performance, combining automated evaluation (LLM-as-judge), adversarial testing, human-in-the-loop evaluations, and custom behavioral metrics;
Prompt Engineering: Craft reusable templates and clear instructions to measure system behavior, optimizing for challenging edge cases;
LLM Observability: Design monitoring systems that track LLM behavior in production, capturing key metrics around information retrieval, hallucinations, and latency;
A/B testing: Design, run, and analyze A/B tests to optimize chatbot interactions and user engagement;
Dashboard Development: Create and maintain interactive dashboards using BI tools (e.g., Tableau, Power BI, Looker, Metabase) for real-time visualization of performance metrics and insights.
Main Requirements
WHO YOU ARE
Bachelor's degree in Computer Science, Data Science, Machine Learning, Statistics, or a related field;
Proficiency in Python for data handling and analysis;
Advanced NoSQL and SQL skills for querying large datasets;
Strong problem-solving abilities, with a focus on experimental design and data analysis;
Ability to work collaboratively in a team environment and communicate effectively across different departments;
Excellent verbal and written communication skills, with the ability to explain complex technical concepts to non-technical stakeholders;
Fluent in English.
Benefits & Perks
WHAT WE OFFER YOU
We're a wellness company that is committed to the health and well-being of our employees. Our benefits include:
WELLHUB: We believe in our mission and encourage our employees and their families to take care of their wellbeing too. Access digital fitness programs, and online wellness resources for meditation, nutrition, mental health support, and more.
FITNESS: Additional fitness subsidy to access onsite gyms and fitness studios.
FLEXIBLE WORK: At Wellhub, flexibility fosters a happier, healthier, and more productive work environment for everyone. As a Flexible First company, we offer two work model options: flexible hybrid and full remote.
FLEXIBLE SCHEDULE: We understand that together, Wellhubbers and their leaders can make the best decisions for their own individual scopes. This includes flexibility to adjust their working hours based on their personal schedule, time zone, and business needs.
PAID TIME OFF: Employees receive a minimum of 25 days paid holiday per year with an additional day for each year of tenure (up to 5) in addition to annual holidays (including an extra holiday on your birthday).
CAREER GROWTH: Outstanding opportunities for personal and career growth.