Grupo QuintoAndar | Staff Data Scientist

QuintoAndar; Brasil; Remote; BRL 180,000 - 360,000; Full time

Benefits offered by this job

Health insurance

Life insurance

Home office allowance

Profit sharing

Flexible work hours

Job summary

Grupo QuintoAndar, Latin America's largest real estate ecosystem, seeks a Senior Data Scientist to architect and productionize ML systems, with emphasis on ML/NLP and generative AI, in a remote-first Brazil setup. You will partner with product squads, design experiments, and deploy models that impact pricing, search, and customer experiences.

The role requires 3+ years applying data science, Python proficiency, and strong communication.

Qualifications

• 3+ years applying data science and building ML models.
• Experience with generative AI: agents, prompting, LLM routing/monitoring.
• Experience at fast-growing startups and collaboration across teams.
• Excellent written and verbal communication in English.

Responsibilities

• Architect, develop and deploy ML systems to production (chatbots, search).
• Design and run experiments to improve models.
• Analyze diverse data to enhance models and devise new approaches.
• Apply the scientific method to develop LLM-powered applications and evaluate prompts.
• Participate in Data Science chapters, guilds and reviews.

Skills

Machine learning concepts

Python

Deep learning

Technical leadership

English communication

Education

MSc in ML/Data Science/NLP

Tools

ML platforms

Job description

About Grupo QuintoAndar

We are Grupo QuintoAndar, the largest real estate ecosystem in Latin America. Guided by a shared purpose of helping people love where they live, we have a diversified portfolio of brands and solutions across different countries in Latin America, covering all phases of the housing journey. We also have a Technology Hub in Portugal. We develop technology and innovation to transform and enhance the overall living experience.

With the support of a world-class team of investors and advisors, including Kaszek, Qualcomm, General Atlantic, and SoftBank, Grupo QuintoAndar is currently valued at over USD 5.1 billion and continues to grow year over year.

Here, you will work with top professionals in the market, in an environment that breathes innovation, collaboration, and high performance. To learn more about our story, visit: https://grupoquintoandar.com/pt/ .

Location & Remote Work

Our technology team operates under a \"remote-first\" model, which means we work from home and can live anywhere in Brazil. We also offer the option of working from our São Paulo offices or partner coworking spaces, up to twice a week.

Hiring Process Stages

The stages of our hiring processes aim to assess your experiences and allow you to meet our teams and explore career opportunities. They are structured as follows:

• Application
• Interview with Recruiter
• Technical Interview with Data Products Team
• Offer

About the Area

In our Data Science team, you'll have the chance to work as a part of our product squads delivering features that enrich our product and a first class experience that we are known for. You'll work alongside brilliant minds, with different skills: Product Managers, Designers, UX Writers, Data Scientists, Machine Learning Engineers, Software Engineers, etc. Be prepared for the job of your life - hard challenges, high expectations, intelligent life at work, meaningful conversations, outstanding productivity.

Some of the specific problems we work in the Data Science team include search and recommendation systems; customer experience enhancement using ML such as in automatic routing of tickets; pricing, liquidity and credit models; building a platform that enables us to develop and deploy all those solutions.

Note: This is a senior position. We expect you to have at least 3+ years of experience applying data science and creating machine learning models. If you have the skills, but are starting your journey in Data Science, please apply to the Data Scientist job instead.

Responsibilities

• Architect, develop and deploy machine learning systems to production. The main use cases are related to chatbots and search.
• Design and execute experiments.
• Analyze a wide variety of data (structured and unstructured, observational and experimental) to improve current models or create new ones
• Apply the scientific method to develop LLM-powered applications, including testing different prompts, exploring and understanding LLM capabilities, evaluating agents and prompts, assessing AI application guardrails, and building PoCs to validate the feasibility of generative AI for product features.
• Participate actively in discussions and decisions regarding the whole Data Science chapter (Guilds, Design Reviews, Demos, etc.)

What we are looking for:

• People that are seeking to learn and deliver real impact through Data Science
• Expert knowledge of machine learning concepts: regression and classification, clustering, neural networks, feature selection, cross-validation, curse of dimensionality, bias-variance tradeoff, model explainability, etc.;
• Good understanding of the engineering challenges to deploy machine learning systems to production;
• Proficiency in Python;
• Some knowledge or experience with Deep Learning
• Experience with technical advice for other data scientists (technical leadership);
• Excellent written and verbal technical communication skills. We're looking for someone who loves Data Science & Machine Learning and is willing to share his/her knowledge with the other members of the Data Science Chapter;
• Good English skills (verbal and written) is mandatory.

You'll stand out if you:

• Have a MSc. (or Undergrad + intense experience) in machine learning, data science, information retrieval, ranking systems, recommender systems, natural language processing or other relevant fields.
• Have experience with applied generative AI: AI agents, prompt engineering, LLMs finetuning (lora, qlora, peft), LLM routing, LLM monitoring, LLM guardrails
• Have experience working at fast-growing startups.

Important

• Our hiring process starts with the application! If you truly want to be part of our team, please complete this step of the process. We analyze all candidates individually and provide feedback to all applicants.
• All communication will be conducted via email, so please stay tuned for our messages and release the domain @quintoandar.com.br to ensure our emails are not sent to spam.
• Profit sharing
• Health insurance
• Life insurance
• Childcare subsidy and Atypical Parenthood subsidy
• Home office allowance
• Employee assistance program (mental health, social, legal, and financial support)
• Extended parental leave
• Day off on birthday, Mother’s Day, and Father’s Day
• Benefits Club (discounts on everyday services)
• Discounts at educational institutions

Diversity & Inclusion at Grupo QuintoAndar

We value diversity and want everyone to feel welcome here, regardless of their age, gender identity, sexual orientation, race, color, ethnicity, origin, disability, religion, or any other characteristic. All our job openings are open to all individuals!

You’ll notice there are some diversity questions in the application form. For affirmative action roles, this information may be used to verify your alignment with the target audience for the opportunity. In such cases, it may be used for elimination purposes. For non-affirmative action roles, this data will be used anonymously, exclusively to monitor and improve our inclusion practices in the hiring process, and will have no impact on your application.

Privacy and Data Protection

The Grupo QuintoAndar operates in compliance with privacy and data protection laws, including, but not limited to, the Brazilian General Personal Data Protection Law (LGPD) (Law No. 13,709/2018), and ensures the security of your data. To learn more, please access our Privacy Notice for Candidates . For questions or to exercise your rights as a data subject, please contact us through our Service Channel .