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MarcosWinicyus/README.md

Hey, I'm Marcos Winicyus! 👋

I am a Senior Analytics Engineer and Technical Lead obsessed with building high-performance data architectures that solve real-world business problems.

Currently, I work at Nubank, ensuring data reliability for one of the world's largest digital banking platforms. With a strong foundation in Computer Science and over 6 years of experience in the financial sector, I specialize in the convergence of Big Data (Spark, Kafka, Data Mesh) and AI Engineering (LLMs, RAG, Agentic Workflows).


🚀 About Me & Technical Impact

My goal is to build the "Paved Road" for data consumption, leveraging Generative AI to eliminate toil and unlock new capabilities for the business.

  • GenAI Innovation: I don't just hype AI; I deploy it. I architected a Generative AI solution using AWS Bedrock and Python that automated legacy code migration, achieving an 8x acceleration in workflows.
  • Platform Engineering: I believe Data Engineering is Software Engineering. I implement strict Design Patterns (e.g., Decorator, Strategy) and build internal libraries to standardize jobs, reducing boilerplate code by 40%.
  • Cloud Native Architecture: Deep expertise in AWS Serverless (Step Functions, Lambda) to orchestrate complex, event-driven pipelines that are resilient and agnostic to platform evolution.

🛠️ Tech Stack

Languages: Python Scala SQL

Data Engineering & Big Data: Apache Spark Apache Kafka Apache Airflow Delta Lake

Cloud & DevOps: AWS Terraform Docker

AI & LLMs: LangChain AWS Bedrock:


🌎 Find me elsewhere


I love sharing knowledge, so if you want to talk about technology use the LinkedIn, I'll be happy to meet you! 😊

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  1. apache-spark-studies apache-spark-studies Public

    Didactic simulations to master Apache Spark. Learn Query Plans, DAGs, Data Skew resolution, and performance tuning with hands-on exercises and real financial data.

    Python 1 1

  2. solver-lp solver-lp Public

    The Visual Optimization System (Solver LP) is an interactive and didactic platform developed to assist in teaching and learning Operations Research.

    Python

  3. web-scraping-investing web-scraping-investing Public

    Scraping of data of investing.com economic calendar using the Python 3 and the library BeautifulSoup.

    Python 13 5

  4. end-of-life-date-checker end-of-life-date-checker Public

    Aplicação Python Streamlit com integração com a API endoflife

    Python