Senior Data Scientist

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🕒 July 25

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Sólides

WebsiteLinkedInAll Job Openings

501 - 1000 employees

💼 Consulting

🏥 Healthcare

📣 Marketing

Consulting • Healthcare • Marketing

Sólides is a Brazilian HR technology company that runs Escola de Pessoas, a large online learning platform focused on human resources, leadership and people management. It offers free and paid courses, certifications, and expert-led training in areas like talent attraction, development, retention, payroll/departmental personnel, and behavioral management. The platform combines technology and educational content to support HR professionals and organizations in upskilling teams and improving people management practices.

📋 Description

• Lead the end-to-end data science project lifecycle, from understanding the business problem to deploying and monitoring models in production • Develop and refine Machine Learning models (supervised and unsupervised) applied to recruitment, selection, retention, and engagement • Perform complex exploratory analyses to uncover patterns and hidden opportunities in user behavior • Work closely with Product and Engineering teams to integrate data solutions directly into the platform • Ensure model quality and governance, focusing on bias mitigation and explainability (XAI) • Mentor junior team members, promoting best practices in coding, experimentation, and scientific rigor • Communicate technical findings clearly and strategically to stakeholders across the company

🎯 Requirements

• Proven experience in senior-level Data Science projects, preferably in product-oriented (SaaS) environments • Advanced proficiency in Python and its main libraries (Pandas, NumPy, Scikit-learn, XGBoost/LightGBM) • Advanced SQL skills for handling large datasets and extracting insights • Deep knowledge of applied statistics, hypothesis testing, and predictive modeling • Experience with cloud environments (AWS or GCP) and version control tools (Git) • Strong analytical skills and the ability to translate business problems into data-driven solutions • Experience with Natural Language Processing (NLP) and LLMs (Generative AI) is a plus • Experience with recommender systems is a plus • Familiarity with MLOps practices (MLflow, Kubeflow, or similar) is a plus • Prior experience in HR Tech or People Analytics is a plus • Master's or Ph.D. in quantitative fields (Statistics, Mathematics, Computer Science, Engineering) is a plus

🏖️ Benefits

• Meal allowance / food voucher of R$45.00 per business day (Sólides Benefits Card) • Transportation voucher or fuel allowance • Unimed health plan with co-payment, no monthly fee • OdontoPrev dental plan, fixed monthly fee of R$21.91 • Therapy: partnership with Psicologia Viva — 3 free sessions per month • Online courses ranging from culinary to postgraduate programs (Qualifica) • Access to all courses from the Escola de Pessoas • Home office allowance of R$60.00 (Sólides Benefits Card) • English course (English Pass) • Perks (on-site manicure, healthy snacks, and more) • Birthday day off • Totalpass • Childcare assistance for parents with children up to 3 years and 11 months • Assistance for dependents with special needs (also extended to parents) • Ânima ecosystem agreement (discounts on undergraduate and postgraduate courses within the group's institutions) • Partnerships with OnHappy and SESC • Super flexible dress code