Technical lead on Big Data ETLs (spark, python, hive, impala)Development of internal Spark frameworksGuidelines on best practices for a team of 15+ developers (and code review)Over 500 interfaces/extractions migrated from PIG to sparkPerformance tuning

Working with data transformation/extraction in:- Spark- Hadoop- Hive- Python- SQL

Mentor on the "Programming for Data Science" Udacity nanodegree. It includes Python and SQL.As per email received when the program ended:"During your time as a 1-on-1 Mentor, you had an average student rating of 4.85 out of 5 stars."

Siebel solutions architect for Telefônica on several projects.

Working on the Siebel Finance implementation for the Sicredi Bank.Responsibilities include:- Functional analysis- Solution design- Functional and technical documentation- Proof of concept development for new features

Working for GVT, a major telecom of the Vivendi group. Responsibilities include:- Solution architecture for new projects- Functional analysis- Coordination of remote developers- Problem solving in CTI/URA, Product Catalog, Eligibility, Pricing, Order Management, Integration (EAI and EIM), Service Requests and Activities.Projects delivered:- Freedom - a smartphone application that allows customers to use their home's telephone line to make calls using the internet.- Anatel Regulation - a project dedicated to compliance with new Anatel rules- Segmentation - focus on understanding who our clients are and how they behave- RTD - improvements on the existing retention process to lower call times and improve success rates

Implemented Siebel 8 for Serasa. I was part of every step of the process: requirements, design, build and post-production support.Using Siebel eCommunications and it's Asset Based Ordering on Sales process.

Responsibilities include:- Design and Implementation lead of the biggest Oracle CRM OnDemand project on Latin America.- Training new Siebel consultants- Support the sales process to acquire new clients- Siebel Reports (BI Publisher)- Technical/functional advising and design review of all GPTI Siebel consultants working on clients. Including: Banco Santander (Bank), Banco da Amazonia (Bank), Fundação Oswaldo Cruz (Health company)

Worked for Innovative Management Consulting, a major Oracle Certified Partner in Brazil.Our client, OdontoPrev, is a company is going through a process analysis by Ernst & Young. Based on that analysis we'll bring all the integrated business processes to Oracle's EBS and Siebel using Oracle Business Accelerators.I'll be working on business analysis, configuration and integration.

Developed a CTI (Siebel <> PABX integration) solution for the company and concurrently worked on a migration project (as both config and database consultant) from Siebel 6 - MS-SQL Server to Siebel 7.8 - Oracle.Includes:- development of a communication's driver- DBA work (SQL procedures, creation of tables, indexes, constrains, triggers)- Siebel config (includes e-Scripting, user properties and others)- Siebel workflow process- VB and ActiveX scripting

Development of Siebel applications. I have delivered one CRM app, one Partner Portal app and worked on a SOA design to allow IBM's opportunity management system be integrated to many of it's aquisitions.