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Reinaldo Duzanski JúniorRJ
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Reinaldo Duzanski Júnior

@reinaldoduzanski

Senior Data Engineer | Cloud Data Platforms (GCP, AWS, Snowflake, Databricks) | PySpark & Data Architecture

Brazil
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What I'm looking for

I seek roles building cloud-native data platforms with strong technical ownership, client collaboration, and scalable impact.

Senior Data Engineer with 7+ years building enterprise cloud data platforms on GCP and AWS. I design and implement scalable ETL pipelines (PySpark, Airflow, Databricks, Snowflake) that process millions of records daily, reduce cloud costs by 30–40%, and enable real-time analytics.

Recent highlights:
• Delivered a GCP platform serving 50+ analysts with medallion architecture (Bronze/Silver/Gold).
• Cut processing times from hours to minutes with optimized PySpark pipelines.
• Led audit data infrastructure that drove $2M+ in identified savings.
• Implemented real-time streaming for mission-critical dashboards.

Experienced in working with multicultural, global teams (USA, UK, India, China) and skilled at bridging the gap between engineering execution and business needs to deliver measurable results.

Experience

Work history, roles, and key accomplishments

GE

Senior Data Engineer

Gerdau

Jul 2022 - Mar 2024 (1 year 8 months)

Built and operated robust ETL pipelines to source and structure data from APIs and SAP tables, producing tailored reports and data marts that supported audit decision-making and analytics.

HB

Java Back-End Developer

HSBC Global Technology Brazil

Mar 2013 - Jul 2015 (2 years 4 months)

Contributed to global backend software projects, collaborating with multicultural teams to deliver distributed systems and enterprise-grade services.

SS

Java Full Stack Developer

Supremus Solutions

Jan 2011 - Dec 2011 (11 months)

Developed a commercial ERP system for small businesses, implementing modules for cash flow and inventory management to improve operational control for entrepreneurs.

Education

Degrees, certifications, and relevant coursework

Reinaldo hasn't added their education

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Tech stack

Software and tools used professionally

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