# Ewerton de Souza **Senior Backend & Data Engineer** — Belo Horizonte, Brazil - Website: - Email: - Phone: +55 31 9 9854 6167 - LinkedIn: - GitHub: - Calendly: ## Summary Hi, I am Ewerton, a Lead Engineer with over 7 years of experience in architecting and scaling complex data and AI platforms from the ground up. I specialize in the intersection of backend development and data engineering, transforming business requirements into robust, production-ready systems on GCP and AWS. Mentoring developers and driving projects from concept to deployment, I am passionate about solving complex data challenges and building the infrastructure that powers intelligent products. Guided by my faith in God, I strive to build technology responsibly and create tools that have a lasting impact. ## Experience ### Senior Backend Developer — EY *Mar 2026 - Present · Tax & Accounting · ey.com* Building a tax compliance reporting platform for EY's tax practice, turning raw partner and investment data into K-1s, K-3s, and state tax reports. - Shipped over a dozen new report types in under six months. - Designed a feature-flag system for safe, incremental rollouts. - Built a two-lane job queue to speed up report processing. - Led a full migration to Python 3.12 while keeping a 74-report async pipeline reliable for real client deadlines. ### Lead Back-end Engineer (Code & Theory) — Stagwell *Dec 2024 - Feb 2026 · Marketing · stagwellglobal.com* As the founding Lead Backend Developer, I architected and scaled this enterprise AI platform from the ground up, leading a team of senior engineers to build a robust, production-ready system on Google Cloud Platform. - Architected a Scalable AI Engine using Python, FastAPI, and LangGraph with RAG and multi-tenant vector search. - Engineered an Enterprise-Grade Backend on GCP with SQLAlchemy and Pydantic. - Led Security & Team Operations (JWT, SSO/Okta, RBAC) and mentored a team of 8 senior developers. ### Senior Data Engineer (Stagwell Marketing Cloud) — Stagwell *Apr 2024 - Nov 2024 · Marketing · stagwellglobal.com* I pioneered the company's secure data collaboration strategy by designing and implementing a fully automated, multi-cloud data pipeline for AWS, GCP, and Snowflake. - Architected a Multi-Cloud Ingestion & Processing Framework for scalable and secure data sharing. - Built a Serverless Automation Engine on AWS using Glue, Lambda, and Step Functions. - Implemented Secure Analytics with Snowflake Clean Rooms enabling privacy-preserving joint insights. ### Senior Back End Developer — Morsum *May 2023 - Apr 2024 · Food · dotfoods.com* Responsible for scaling the platform's core API and data pipeline infrastructure in the foodtech space. - Developed and scaled the primary Python/Flask REST API. - Architected the company's data processing framework using Apache Airflow for all automated ETL pipelines. ### Senior Data Engineer — DashFi *Oct 2021 - May 2023 · Financial Institutions · dash.fi* Worked on a B2B credit card company for digital ad spending. - Created fast, secure REST APIs with FastAPI. - Built ETL pipelines for internal dashboards using GCP BigQuery and Looker Studio. - Maintained Apache Airflow server with CI/CD for DAGs. - Developed predictive statistical models for spending data. ### Big Data Engineer — CERC *May 2021 - Oct 2021 · Financial Institutions · cerc.com* Maintained data pipelines and infrastructure for one of Brazil's main receivables registers. - Maintained Python and Java/Kotlin data pipelines. - Implemented solutions using Docker, Kubernetes, Airflow, Hadoop, Spark, and Dataflow. - Optimized queries in Spanner and BigQuery. ### Data Engineer — BeGrowth *May 2020 - May 2021 · Marketing · begrowth.com.br* Built data infrastructure for an AdTech startup. - Created Data Lake & Warehouse using Google Cloud BigQuery. - Orchestrated Ads data (Facebook, Google) using Airflow. - Wrote Python (Pandas/Numpy) scripts for data merging. - Managed Ads accounts and improved ROAS through A/B testing. ## Education ### Master in Business Administration (MBA), Data Science and Analytics — USP - Universidade de São Paulo *2021 – 2022 · Grade: 99/100* - Gained a strong foundation in analytical and data skills, with a focus on applying them within a business context. - Skills: Google Cloud Platform (GCP), Data Engineering, and more. ### Graduate Degree, Computer Software Engineering — PUC Minas *2021 – 2022 · Grade: 93/100* - Agile methodologies and processes, such as Scrum and Kanban, which are commonly used for software development and project management. - Skills: Software Architecture, DevOps, Agile. ### Undergraduate degree, Chemical Engineering — PUC Minas *2014 – 2019 · Grade: 85/100* - Gained a strong understanding of the principles of chemical engineering, including thermodynamics, kinetics, transport phenomena, and reactor design. - Skills: Chemical Processes, Thermodynamics, Optimization. ## Products I Build ### aiomover — Move your files anywhere, instantly *Web Applications · * The ultimate cloud migration tool for personal and business use. aiomover makes it simple to transfer files between cloud storage providers securely and efficiently. Whether you're backing up data, migrating to a new provider, or synchronizing across platforms, aiomover handles it all. - Lightning Fast Transfers - Bank-Grade Security - Simple Interface ### questao — Master national exams, one question at a time *Web Applications · Coming Soon* An AI-powered EdTech platform designed to help students prepare for the national exams. With years of real exam questions, gamified learning, live rankings, and personalized AI tutoring, questao makes studying engaging and effective. - AI-Powered Learning - Gamified Experience - Connect with Peers ### Harpa Cristã — Six Brazilian hymnaries, always in your pocket *Mobile Apps · Coming Soon* A modern Android reader bringing together six of Brazil's most-used Christian hymnaries in one app. Fast full-text search across every hymn, offline-first lyrics, favorites, and on-demand audio playback make it easy to find and sing along to any hymn, anywhere. - Cross-Book Search - Offline-First Hymns - Audio Playback ## Technologies & Skills | Category | Skill | Level | Rating | | --- | --- | --- | --- | | Programming Languages | Python | Expert | 4.5/5 | | Programming Languages | SQL | Expert | 4.5/5 | | Programming Languages | JavaScript | Intermediate | 2.5/5 | | Programming Languages | Bash | Intermediate | 2.5/5 | | Programming Languages | Java | Familiar | 2/5 | | Programming Languages | PHP | Familiar | 2/5 | | Programming Languages | R | Familiar | 2/5 | | Programming Languages | MATLAB | Familiar | 2/5 | | Databases | MySQL | Advanced | 4/5 | | Databases | PostgreSQL | Advanced | 4/5 | | Databases | BigQuery | Advanced | 4/5 | | Databases | Spanner | Advanced | 3.5/5 | | Databases | ElasticSearch | Intermediate | 3/5 | | Databases | CDC | Intermediate | 2.5/5 | | Databases | MongoDB | Familiar | 2/5 | | Databases | Redis | Familiar | 2/5 | | Big Data & Processing | Apache Spark | Intermediate | 2.5/5 | | Big Data & Processing | Hadoop | Intermediate | 2.5/5 | | Big Data & Processing | Apache Beam | Intermediate | 2.5/5 | | Data Science & ML | Pandas | Expert | 4.5/5 | | Data Science & ML | NumPy | Expert | 4.5/5 | | Data Science & ML | Matplotlib | Advanced | 4/5 | | Data Science & ML | Seaborn | Advanced | 3.5/5 | | Data Science & ML | TensorFlow | Intermediate | 3/5 | | Data Science & ML | Scikit-learn | Intermediate | 2.5/5 | | Data Science & ML | statsmodels | Familiar | 2/5 | | Data Science & ML | PyTorch | Familiar | 2/5 | | Web Development | HTML | Advanced | 4/5 | | Web Development | CSS | Advanced | 4/5 | | Web Development | FastAPI | Advanced | 4/5 | | Web Development | Flask | Advanced | 3.5/5 | | Web Development | Bootstrap | Advanced | 3.5/5 | | Web Development | Node.js | Intermediate | 3/5 | | Web Development | Django | Intermediate | 2.5/5 | | Web Development | React.js | Familiar | 2/5 | | Web Development | NextJS | Familiar | 1.5/5 | | Data Engineering | ETL | Advanced | 4/5 | | Data Engineering | Data Lakes | Advanced | 3.5/5 | | Data Engineering | Data Warehouses | Advanced | 3.5/5 | | Data Engineering | Database Modelling | Advanced | 3.5/5 | | Cloud Providers | Google Cloud | Advanced | 4/5 | | Cloud Providers | AWS | Intermediate | 3/5 | | Cloud Providers | Snowflake | Intermediate | 2.5/5 | | Cloud Providers | Microsoft Azure | Familiar | 2/5 | | Containerization | Docker | Advanced | 4/5 | | Containerization | Kubernetes | Intermediate | 2.5/5 | | DevOps & CI/CD | GitHub Actions | Advanced | 3.5/5 | | DevOps & CI/CD | Jenkins | Familiar | 2/5 | | Version Control | Git | Expert | 4.5/5 | | Version Control | GitHub | Expert | 4.5/5 | | Version Control | GitLab | Intermediate | 2.5/5 | | Dashboarding | Looker Studio | Advanced | 4/5 | | Dashboarding | Power BI | Intermediate | 2.5/5 | | Dashboarding | Redash | Intermediate | 2.5/5 | | Agile | Jira | Advanced | 4/5 | | Agile | Scrum | Advanced | 4/5 | | Agile | Confluence | Advanced | 3.5/5 | | Orchestration | Apache Airflow | Advanced | 4/5 | | Orchestration | Zapier | Intermediate | 3/5 | | Testing Frameworks | Pytest | Advanced | 3.5/5 | | Testing Frameworks | unittest | Advanced | 3.5/5 | | Testing Frameworks | Selenium | Intermediate | 3/5 | | Testing Frameworks | TDD | Intermediate | 3/5 | | Logging | Cloud Logging | Intermediate | 2.5/5 | | Logging | New Relic | Familiar | 2/5 | | Social & Search Ads | Facebook Ads | Intermediate | 3/5 | | Social & Search Ads | Google Ads | Intermediate | 3/5 | | Social & Search Ads | Google Analytics | Intermediate | 2.5/5 | | Social & Search Ads | Google Ad Manager | Intermediate | 2.5/5 | | Operating Systems | Windows | Advanced | 4/5 | | Operating Systems | Linux | Advanced | 4/5 | | AI Tooling | Vertex AI | Advanced | 4/5 | | AI Tooling | Claude Code | Advanced | 4/5 | | AI Tooling | GitHub Copilot | Intermediate | 3/5 | | AI Tooling | Factory AI | Intermediate | 3/5 | ## Languages - **Portuguese** — Native - **English** — Full professional proficiency - **French** — Intermediate - **Spanish** — Intermediate --- Generated on 2026-09-10 · https://ewerton.com.br · [PDF](https://ewerton.com.br/resume.pdf) · [JSON Resume](https://ewerton.com.br/resume.json)