Romulo Oliveira Siqueira, Marketing Expert in São José dos Campos - State of São Paulo, Brazil
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Romulo Oliveira Siqueira

Verified Expert  in Marketing

Marketing Expert

São José dos Campos - State of São Paulo, Brazil

Toptal member since December 4, 2024

Expertise
Marketing AnalyticsGoogle AdsGrowth MarketingCustomer Success
Bio

Romulo is an experienced professional with a strong background in data analysis and business strategy. Throughout his career, he has spearheaded strategic projects that have driven improvements in marketing funnels, cost reduction, and operational optimization. As a specialist in machine learning and artificial intelligence, Romulo has collaborated with multidisciplinary teams to develop predictive models and create innovative products.

Project Highlights

Customer Churn Prediction
Designed a predictive model to identify clients at risk of churn in a financial services business, enabling the implementation of proactive retention strategies.

Expertise

  • BigQuery
  • Data Science
  • Google Ads
  • Google SEO
  • Google Sheets
  • Growth Marketing
  • Python
  • SQL

Work Experience

Business Analyst

2022 - 2024
Toptal
  • Collaborated with senior leadership across various teams, including paid media, SEO, and product, to deliver strategic insights that drive revenue growth.
  • Delivered data-driven analysis and actionable business recommendations that informed strategic decisions on cost optimization, marketing performance, and market research.
  • Built dashboards for business meetings, enabling teams to track performance metrics and identify opportunities for improvement.

Business Intelligence Manager

2019 - 2022
Parafuzo
  • Spearheaded the planning, development, and management of organizational reporting, analytics, and business strategy initiatives.
  • Managed a business intelligence team to support cross-functional departments by extracting, analyzing, and visualizing data-driven insights.
  • Streamlined and expanded commercial partnerships to drive growth and enhance strategic collaborations.

Project History

Customer Churn Prediction

https://www.kaggle.com/code/romulosiqueira/finance-customer-churn-prediction

Designed a predictive model to identify clients at risk of churn in a financial services business, enabling the implementation of proactive retention strategies.

This project leveraged various machine learning models to establish a strategic framework for identifying clients requiring targeted actions to enhance engagement and reduce churn. The highly adaptable analysis offers valuable insights for a broad spectrum of subscription-based businesses.

Customer Segmentation and Product Suggestion Framework

https://www.kaggle.com/code/romulosiqueira/e-commerce-market-basket-k-mean-gemini-api

Developed a versatile tool designed to drive substantial sales growth for any type of online store.

I leveraged techniques, including market basket analysis, customer segmentation, and generative AI for marketing, to uncover hidden patterns and drive commercial growth. This tool empowers businesses to create personalized promotions, cross-sell strategies, and targeted campaigns, significantly boosting conversion rates.

Tableau Dashboard to Evaluate YouTube Channels

https://public.tableau.com/app/profile/romulo.siqueira/viz/YoutubeChannels_17293588885630/Dashboard

Delivered an intuitive dashboard to assist businesses in identifying and evaluating YouTube channels for commercial partnerships.

The dashboard leverages a public dataset and offers multiple filter options featuring dynamic, interconnected charts and tables. Its versatile design is ideally suited for businesses aiming to report performance metrics and closely monitor key performance indicators (KPIs).

Education

2022 - 2024

Master of Business Administration (MBA) in Data Science and Analytics

MBA USP/Esalq - Sao Paolo, Brazil

2012 - 2017

Bachelor's Degree in Mechanical Engineering

State University of Campinas (Unicamp) - Sao Paolo, Brazil

Certifications

NOVEMBER 2024 - PRESENT

Apache Airflow in Python

DataCamp

APRIL 2021 - PRESENT

Introduction to Machine Learning

Kaggle

Skills

Core

Google Ads, Google SEO, Marketing, Customer Success, Generative Artificial Intelligence (GenAI)

Technical

SQL

Platforms & Tools

BigQuery

Other

Microsoft Excel, Google Sheets, Analytics, Python, Machine Learning, Data Science, Growth Marketing, Tableau, Artificial Intelligence (AI), Data-driven Decision-making, Business Intelligence (BI), Mechanical Engineering, Dashboards, Team Leadership, Financial Reporting, Customer Data, Market Fit, Apache Airflow

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