Senior Data Scientist | Generative AI Castelo Branco

Overview

Your wellbeing matters. Join a company that cares. Wellhub (formerly Gympass) is a corporate wellness platform that connects employees to fitness, mindfulness, therapy, nutrition, and sleep, all included in one subscription designed to cost less than each individual partner.

Founded in 2012 and headquartered in NYC, we have a growing global team in 11 countries. At Wellhub, you have the opportunity to build a career in a
- growth tech company that places wellbeing at the foundation of its culture, and contribute to making every company a wellness company.

The Opportunity

We are hiring a Senior Data Scientist in our Generative AI area in Portugal! This is a Remote – Portugal position, meaning you can work from anywhere within the country. Please note that this role is only open to candidates in Portugal.

Your Impact

• Multimodal Extraction: Apply
  -
  -
  - art tools (OCR,
  - language models, document understanding frameworks) to interpret diverse input types;
• Prompt Engineering: Develop and refine strategies for using LLMs to extract, summarize, and transform unstructured content into structured formats;
• Data Quality & Structuring: Clean, validate, and transform messy, unstructured data into
  - defined schemas ready for use in training or analytics pipelines;
• Content Filtering: Define standards and build systems for cleaning, validating, and filtering data to ensure accuracy, reduce bias, and align with ethical/safety guidelines;
• Human-in-the-Loop Feedback: Design feedback loops where experts validate or enrich data, improving LLM-based extraction reliability;
• Scalability & Optimization: Architect
  - efficient,
  - throughput data pipelines that are robust to noisy or incomplete sources;
• Research & Prototyping: Experiment with emerging tools and methods in the LLM + multimodal space, exploring new ways to enhance information coverage and extraction reliability;
• Collaboration: Partner with data engineers and other data scientists to integrate collected data into larger AI and analytics systems;
• Live the mission: Inspire and empower others by genuinely caring for your own wellbeing and your colleagues. Bring wellbeing to the forefront of work, and create a supportive environment where everyone feels comfortable taking care of themselves, taking time off, and finding
  - life balance.

Who You Are

• Master’s degree (or Ph
  D) in Computer Science, Data Science, Machine Learning, Statistics, or a related field;
• Proficiency in Python and experience with libraries for web scraping, OCR (e. g. , Tesseract, Easy
  OCR), and NLP (e. g. , Hugging
  Face Transformers);
• Deep understanding of LLM capabilities in multimodal and extraction contexts, including prompt engineering and
  - shot learning;
• Strong background in unstructured data processing: APIs, web scraping, HTML parsing, OCR, image/document analysis;
• Strong analytical
  - solving skills, with a track record of turning noisy data into
  - quality datasets for ML;
• Excellent communication and documentation skills, with the ability to influence across technical and product teams.

Preferred Qualifications

• Familiarity with
  - language models (e. g. , BLIP, Donut, or Layout
  LM) and multimodal pipelines;
• Hands-on experience in prompt engineering and
  - shot learning for data extraction tasks;
• Experience deploying or supporting data acquisition systems in production environments.

What We Offer You

• WELLHUB: Access digital fitness programs, and online wellness resources for meditation, nutrition, mental health support, and more. You will receive the Gold plan at no cost, and other premium plans will be significantly discounted.
• FITNESS: Additional fitness subsidy to access onsite gyms and fitness studios.
• FLEXIBLE WORK: Flexible First company with two work model options: flexible hybrid and full remote. We offer a home office stipend and a monthly flexible work allowance.
• FLEXIBLE SCHEDULE: Ability to adjust working hours based on personal schedule and business needs.
• PAID TIME OFF: Minimum of 25 days paid holiday per year with additional days per tenure (up to 5) plus holidays (including a birthday holiday).
• PARENTAL LEAVE: 100% paid parental leave to all new parents and extended maternity leave.
• CAREER GROWTH: Opportunities for personal and career growth and ongoing development.
• CULTURE: Supportive, global environment in a
  - growth tech company. More info on our careers page.

EEO & Voluntary Self Identification

We are committed to an inclusive workplace. Wellhub is an equal opportunity employer. We welcome diverse applicants and do not discriminate based on race, religion, color, sex, gender identity or expression, sexual orientation, age, disability, national origin, veteran status, or any other protected basis. The information collected as part of the voluntary
- identification survey is confidential and used to improve diversity and inclusion efforts. It is anonymous and will not affect your application.

Information collected as part of this survey is anonymous and used in aggregate to improve our diversity and inclusion efforts.