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Alexandru-Catalin NicolaeAN

Alexandru-Catalin Nicolae

Senior Data Engineer

€800/day
Düsseldorf, DE
8-15 years

Average response time: 1 hour

About Alexandru-Catalin

Senior Data Engineer delivering rapid ROI through automation and optimization. Specialized in Snowflake
performance tuning (45% cost reduction), Data Vault 2.0 implementations, and WhereScape/dbt
automation. Proven success with FTSE 100 clients including Legal & General (IFRS17), E.ON (Data Platform
Modernization), and Deutsche Bank (Security Enhancement).
Skills: Data Automation, Team Leadership, Stakeholder Collaboration, Process Optimization, Agile
Methodologies.
  • Romanian

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Düsseldorf (up to 50km)

Experience

  • Uniper(Contracted
    DWH Consultant
    November 2015 - October 2017 (1 year and 11 months)
    • Optimizing Performance: Led the performance optimization team, reducing the CashFlow process from 50 minutes to under 5 minutes, utilizing BODS full push down and Oracle statistics for efficiency.
    • Agile Methodology Practitioner: Advanced the use of Scrum methodologies within the project, enhancing team agility and project delivery effectiveness. SAP BODS Expertise, Performance Optimization, Quality Assurance, Cross-Cultural Collaboration.
  • e.on
    Senior Data Engineer
    June 2024 - Today (2 years)
    • Performance Optimization: Reduced Snowflake processing time by 70% and compute costs by 45% through advanced query optimization, warehouse tuning, and dbt model refinements.
    • Data Quality Excellence: Elevated data quality metrics from 72% to 98% by implementing automated testing frameworks using dbt tests and custom Snowflake procedures.
    • Key Skills Developed: Snowflake Optimization, Data Quality Engineering, Cost Management, dbt Best Practices, Data Vault 2.0 Implementation. Tech Stack: Snowflake, dbt, Data Vault 2.0, PowerCloud, Airflow, git
  • IFRS17
    Data Engineer
    September 2022 - December 2023 (1 year and 3 months)
    • Data Reconciliation Innovations: Initiated the development of scripts for IFRS17 financial data extraction and reconciliation, enhancing reporting accuracy and efficiency.
    • WhereScape Mastery: Leveraged WhereScape to automate complex data tasks, significantly improving agility in IFRS17 reporting processes.
    • Auditor Approval: Developed data scripts adopted by KPMG, validating the effectiveness and reliability of the reporting framework. Key Skills Developed: Community Building, Customer Journey Optimization, Technical Leadership, Effective Communication, Stakeholder Engagement. Tech Stack: Snowflake, WhereScape, Prophet, AWS, AWS S3

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Education

  • Certified Customer Success Manager (CCSM) Level 2
    2020
    Certified Customer Success Manager (CCSM) Level 2
  • Certified Customer Success Manager (CCSM) Level 3
    2021
    Certified Customer Success Manager (CCSM) Level 3

Skill set

Categories