Alexsandro Viana de Abreu

Led hands-on instruction in data analytics and data science, covering SQL, BigQuery, dbt, Fivetran, ETL/ELT, Python, ML, APIs, and stats. Taught data pipeline development, workflow automation (Airflow, Prefect), and containerization with Docker. Guided 150+ students through real-world projects in modeling, warehousing, and dashboarding (Power BI, Looker). Managed a team of instructors and TAs to ensure smooth delivery and student success.

Acted as SAP TM consultant for Maxion Wheels, Liquigás and Marelli, providing post-rollout support and transport process optimization. Delivered customizations to close functional gaps in SAP TM module, supported key users, and resolved issues in logistics workflows. Created and maintained a knowledge base to streamline support and training, ensuring effective SAP TM adoption across operations.

Provided 24/7 technical support for SAP SD and TM modules across multiple channels. Created and maintained knowledge base documentation for L1/L2 support teams. Trained analysts and key users. Participated in SAP rollouts to new Leroy Merlin stores. Troubleshot integration issues across SAP ECC, EWM/TM, resolving errors in sales, transport, shipping, and freight workflows.

Provided post-sales support at a telecom company, handling over 50 customer interactions daily related to service plans, phone lines setup, and internet connectivity. Resolved technical issues, guided service configuration, and logged feedback to improve satisfaction. Contributed to a 15% increase in first-call resolution rates. Trained and onboarded new team members to maintain service quality.

Led and mentored a research team of 5-8 members for the Brazilian Census, overseeing route planning and task assignments for field researchers. Selected, trained, and onboarded new team members. Conducted door-to-door data collection, ensuring accurate responses, and securely transferred survey data to government databases.

Managed and mentored the customer service team, ensuring high-quality support. Provided telephone support to customers, addressing issues with digital and analog telephone exchanges. Conducted fault diagnostics, ran error-correction scripts, and offered in-house technical support to internal teams. Assisted with post-sales activities and the installation of online services. Collected customer feedback and proposed improvements to enhance the overall customer experience.