Flash

Data Science Specialist

Flash

full-time

Posted on:

Location Type: Remote

Location: Brazil

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Tech Stack

PythonSQL

About the role

  • Design and implement AI features in strategic products.
  • Build LLM-based solutions for use cases such as customer support, triage, recommendation, information generation/extraction, and workflow automation.
  • Develop and orchestrate multi-agent architectures for complex tasks.
  • Contribute hands-on to experimentation, architectural decisions, and the design of ML and AI solutions for the People BU's products.
  • Create AI services and production pipelines (APIs, observability, logging, performance monitoring).
  • Define and maintain quality metrics, conduct experimentation (A/B or controlled tests), and drive continuous improvement.
  • Help ensure security, privacy, and compliance in the use of sensitive data, including best practices for anonymization and governance.
  • Document technical decisions, trade-offs, and patterns to help scale AI adoption across the People BU.

Requirements

  • Degree in Computer Science, Statistics, Mathematics, Engineering, Physics, or a related field.
  • Strong experience as a Data Scientist / AI Specialist (minimum 5 years) with production deliveries.
  • Practical, hands-on experience applying LLMs to product use cases.
  • Proficiency with data tools and platforms (e.g., Databricks, Python, SQL, Metabase).
  • Experience building LLM-based solutions (RAG, fine-tuning) and developing multi-agent architectures, with quality measured by Evals and clear metrics.
  • Experience orchestrating agentic workflows with LLMs using frameworks such as LangGraph.
  • Solid foundation in applied Machine Learning (classical models, metrics, validation, experimentation, and monitoring/drift) to complement production LLM solutions.
Benefits
  • Flash Card (the beloved pink card!) with flexible benefits: meal and grocery allowances, mobility, healthcare, education, culture, and wellness.
  • Health insurance.
  • Life insurance.
  • Extended maternity and paternity leave, plus childcare assistance.
  • Day off on your birthday 🎂
  • Hybrid and flexible work model + home office allowance + in-office experiences.
  • Exclusive partner discounts through the Flash app.
  • TotalPass.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
AI features designLLM-based solutionsmulti-agent architecturesmachine learningdata analysisA/B testingperformance monitoringanonymizationgovernancequality metrics
Soft Skills
collaborationcommunicationproblem-solvingcritical thinkingdocumentation