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Guilherme B.GB

Guilherme B.

Lead/ Senior Data &Analytics Engineer

€750/day
Lisbon, PT
8-15 years

Average response time: 1 hour

About Guilherme

  • English

    Native or bilingual

  • Portuguese

    Native or bilingual

  • Spanish

    Fluent

  • French

    Conversational

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

Experience

  • Freelance
    Lead/ Senior Data &Analytics Engineer
    February 2025 - Today (1 year and 5 months)
    • o Provide data engineering, leadership and architecture consulting for startups in AI, e-commerce, and Martech, designing scalable platforms and optimizing ETL/ELT pipelines.
    • o Advise on data strategy, governance, and scaling, ensuring compliance and efficiency.
    • o Selected projects:
    ◦ o Rebuilt ingestion pipelines processing 10M+ data points/day, cutting costs by 40%, increasing processing speed by 70%, and improving data quality by 30%.
    ◦ o Implemented an improving reporting accuracy by 25% and enabling a 360° business view sales to spend.
  • bounce.com (Startup, Marketplace),
    Data Lead
    January 2024 - January 2025 (1 year)
    Portugal
    • o Promoted a self-serve culture with Steep, Hex, and Google Sheets, achieving 80% adoption and reducing ad-hoc reporting requests by 60%.
    • o Implemented a Metrics Layer, standardizing business language, enhancing self-serve analytics and reducing decision turnaround time.
    • o Established solid Data Engineering and Warehousing best practices including CI/CD pipelines, data governance, and automated testing, improving reliability and efficiency. Reduced pipeline incidents by 30% and onboarding time by 50%, while decreasing attrition and time-to-delivery, enabling scaling with fewer hires..
    • o Collaborated on Data Science initiatives, including demand forecasting, user segmentation, pricing optimization, driving business growth by 15%.
    • o Led hiring and mentorship for Data Science, Analytics, and Engineering, fostering a strong data-driven culture.
  • bounce.com (Startup, Marketplace),
    Lead Data Engineer
    September 2023 - January 2024 (4 months)
    Portugal
    • o Rebuilt the MVP data platform into a production-grade system across ingestion, transformation, orchestration, presentation, and governance, improving core metric accuracy by 40%.
    • o Built a scalable, robust, and flexible Data Platform creating a unified business view and automating workflows.
    • o Developed web scrapers for competitor, advertising and SEO data, enhancing growth and marketing analytics.
    • o Improved trust in analytics across the organization, accelerating adoption of self-serve reporting.

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Education

  • Postgraduate in Data
    NOVA IMS
    2021
    Postgraduate in Data

Skill set

Categories