Onfly

Senior Data Analyst

Onfly

full-time

Posted on:

Location Type: Hybrid

Location: Belo Horizonte • Brazil

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Job Level

Senior

Tech Stack

PandasPySparkPythonSQL

About the role

  • As a Senior Data Analyst in the Professional Services team, you will play a strategic and technical leadership role.
  • Your focus will be developing complex, customized dashboards for high-impact clients, working on data optimization, advanced modeling, and defining visual and technical quality standards across the entire data chapter.

Requirements

  • Work with large datasets, perform complex queries, and have a deep understanding of relational and non-relational databases.
  • Optimize queries and perform data transformations in the Silver and Gold layers.
  • Proficient in tools such as Pandas (Python) or similar libraries in other languages, with advanced skills in SQL, R, and PySpark.
  • Strong experience in modeling, predictive analytics, and advanced statistical analyses (including descriptive statistics, inference, regression, and multivariate analysis), as well as in applying technical and fundamental analytical studies.
  • Serve as the team's reference for implementing, evolving, updating, and documenting quality standards, clean-code best practices, and dashboards.
  • Implement Information Design, defining a design system and standardizing wireframes to ensure scalability.
  • Be proficient in selecting the best visual representations for different audiences and creating advanced interactive visual insights in Power BI.
  • Deeply understand Onfly's operations and its entire sales funnel, product metrics, growth, marketing, and market, and develop hypothesis validations.
  • Master agile methods, project documentation organization, and version control.
  • Fluent English.
Benefits
  • Hybrid work model (2 days per week on-site and the rest remote)
  • Flexible working hours
  • Meal allowance on a flexible card: R$40 (no 6% payroll deduction)
  • Transportation allowance on a flexible card (no 6% payroll deduction)
  • Unimed health plan with no copay and no monthly fee for the employee (company-covered)
  • Dental plan (employee monthly contribution)
  • Pharmacy discounts
  • No dress code
  • Online psychotherapy benefit (Vittude)
  • Gym benefits (Gympass)
  • 90% scholarship for language courses
  • Discounts on undergraduate and graduate programs (UNA and UNIBH)
  • Funeral assistance (Grupo Zelo)
  • Extended maternity/paternity leave
  • R$200 voucher for Onhappy (exclusive platform for discounted travel anywhere in Brazil)
  • Life insurance
Applicant Tracking System Keywords

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

Hard Skills & Tools
data analysisdata optimizationadvanced modelingcomplex queriesrelational databasesnon-relational databasesSQLRPySparkpredictive analytics
Soft Skills
strategic leadershiptechnical leadershipcommunicationteam collaborationproblem-solvingdocumentationquality standards implementationdesign system definitionaudience-focused visualizationhypothesis validation