Julio Martins
Analista de dados @ Marketdata
About
Data professional, with experience in modeling, engineering and data analysis. Working with multinational company, where I held meetings in English to understand the needs of each party and the demands of creating dashboards in Tableau for the most diverse areas, such as inventory, billing, sales, among others. Working as a data engineer within Telecom, in the areas of P&L, Revenue and Business Assurance, processing data, helping with business rules, working with Hadoop and creating dashboards in Power BI.
Brazil
São Paulo
Banking
Artificial Intelligence (AI), Data Engineering, Cloud Applications, Programming, Data Architecture, Machine Learning, Google BigQuery, Looker (Software), Google Analytics, Spanish, Google Sheets, Business Analysis, Online Marketing Analysis, Transact-SQL (T-SQL), MapReduce, SQL Server Reporting Services (SSRS), Cloudera, Microsoft SQL Server, Gestão de catálogo, Catálogo de produtos
Experience

Analista de dados
Responsible for analysis from Mercado Libre campaigns in segmentations of Engagement and Growth working with Sellers, Sellers Clips, VIS (vehicles, real state and services) campaigns, dashboards w/ Looker Studio, Big Query and ETL to Support data migration from relational database to cloud database

APC Analyst (Planing and Control Analyst)
National bank of great influence in the investment sector. Acting as a data analyst with a focus on engineering and data migration from relational banking to hybrid cloud banking CLOUDERA. In this opportunity I had knowledge of investment products and how capital gains and losses are calculated, I worked with COE investments, REFERRAL to the New York unit, in the portability of investments from Brazil to the USA, DERIVATIVES and FAMILY OFFICE, generating in addition to the migration, the creation of reports for the bank's board to structure business strategies.

Data Engineer
Data engineering in the TELECOM segment (Oi and Claro) creation of ETL scripts, using the JETL tool, extraction and consolidation of results for P&L with SQL/Hadoop, and Power BI dashboards. Working directly with the billing director for decision making.

Curador de catálogo
Responsible for creating and managing product listings, ensuring descriptions, images, specifications, pricing, and categories are correct and consistent across channels. They enforce catalog standards, handle bulk uploads or PIM imports, and coordinate with product, merchandising, and marketing teams to publish new SKUs and promotions.

Catalog Agent
Responsible for creating and managing product listings, ensuring descriptions, images, specifications, pricing, and categories are correct and consistent across channels. They enforce catalog standards, handle bulk uploads or PIM imports, and coordinate with product, merchandising, and marketing teams to publish new SKUs and promotions.

Shopper Operation Manager
Manage marketplace operations: oversee shoppers’ execution of orders, ensure delivery quality and efficiency, and resolve operational bottlenecks. Optimize technical and product performance: work with Product and Engineering teams on projects that improve maps, routing, and fare estimates, and handle price exceptions and fare fallback rules. Cross‑functional coordination: align logistics, customer support, retail partners, and growth teams around goals and processes. Monitoring metrics: review dashboards for shopper availability, response times, order success rate, and delivery quality.Incident resolution: investigate problematic orders (missing items, late deliveries, routing errors) and implement immediate fixes. Improvement projects: lead initiatives to reduce costs, improve SLAs, and automate operational processes.People management: train, escalate, and support local operations teams and field coordinators.

Customer Success Consultant
Responsible for guiding corporate clients through onboarding and training, building and maintaining strong relationships with HR leaders and employees, driving engagement and adoption of the platform, resolving issues by coordinating with internal teams, providing strategic insights based on data to demonstrate ROI, and ensuring client satisfaction to secure renewals and identify opportunities for growth.

Bilingual Customer Service Representative
Reviewed and monitored user-generated content across multiple platforms to ensure compliance with community guidelines, client-specific policies, and legal standards. Identified and removed inappropriate or harmful material to safeguard online communities and escalated complex cases to specialized teams when necessary. Applied moderation rules with accuracy and cultural awareness, documented decisions, and provided feedback to improve processes. Collaborated with internal stakeholders to maintain a safe and engaging digital environment while consistently meeting performance and quality targets.

Inside Sales Assistant
São Paulo e Região, Brasil
Responsible for guiding corporate clients through onboarding and training at Google My Business, building and maintaining strong relationships with HR leaders and employees and business owners, driving engagement and adoption of the platform, resolving issues by coordinating with internal teams, providing strategic insights based on data to demonstrate ROI, and ensuring client satisfaction to secure renewals and identify opportunities for growth.
Education

Data Modeling/Warehousing and Database Administration
Postgraduate in Data Engineering & Architecture + AI – XP Educação Specialized in designing scalable data architectures and applying artificial intelligence to real-world business challenges. Key skills and tools: - Data Engineering: pipelines, ETL/ELT, real-time data processing - Data Architecture: Data Lakes, Warehouses, distributed systems - AI & ML: predictive modeling, automation, deep learning applications - Cloud Platforms: Google Cloud, AWS - Programming & Tools: Python, SQL, Spark, Kafka
Julio Martins's Contact Information
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