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davnnis2003/README.md

Hi, I'm Jimmy Pang πŸ‘‹

Senior Business Intelligence & Analytical Engineering Leader | 8+ Years

πŸ“ Berlin, Germany πŸ‡©πŸ‡ͺ | βœ… Permanent Residence (No visa sponsorship required)
🎯 Building Data Teams & Platforms for High-Growth Companies


🎯 Strategic Leadership Impact

Executive-Sponsored Initiatives

  • πŸ’° €24M Payment Infrastructure Redesign - Led data architecture for CFO/CTO-sponsored Payment v2 rebuild at Vestiaire Collective. Architected Kafka event streams, partnered with VP Platform Engineering to deliver first reliable payment data mart in company history
  • πŸ›‘οΈ 80% Fraud Reduction - COO/CTO-sponsored fraud detection project: reverse-engineered legacy pipelines post-team turnover, refactored real-time monitoring, restored institutional knowledge
  • ⚑ 50% CS Response Time Improvement - Rebuilt Customer Service data infrastructure from scratch (48β†’24 hrs), directly contributing to Best Customer Service Award (Italy 2025/2026)
  • πŸ† 20%+ Authentication Speed Boost - COO-sponsored Quality Control initiative: supervised Snowflake Data API integration for 500K+ active listings

Team Building & Operational Excellence

  • Built Operations BI squad from 0β†’3 engineers at Vestiaire Collective; defined team structure with COO/VP Ops
  • Pioneered Agile methodology for data teams: reduced backlog turnaround 8β†’4 weeks via Scrum/MoSCoW prioritization
  • Co-founded Data Guild at Delivery Hero (200+ members, 50+ countries, CTO-endorsed)
  • Architected greenfield Data Warehouse at Delivery Hero serving 200+ users across 5 AWS regionsβ€”blueprint for company's Data Mesh strategy

"Jimmy is one of the rare data leaders who combines deep technical expertise with exceptional stakeholder management. His work on our payment infrastructure was transformational."

β€” Hugo Almeida, VP Engineering, Vestiaire Collective


πŸ’‘ What I'm Doing in 2026

  • 🎯 Seeking Head of Data / Team Lead roles in Berlin - Open to Series A-C startups (Bolt, Vinted, Gorillas, GetYourGuide, Trade Republic, etc.)
  • ✍️ Publishing Data Biz on Substack - Strategic insights for data leaders: jimmypang.substack.com
  • 🌭 Building JimWurst - Open-source AI-powered personal DW experimenting with LLM-driven analytics workflows (semantic search over dbt docs, automated data quality alerts, natural language SQL generation)

πŸ—οΈ Technical Leadership Portfolio

πŸ“ Published Thought Leadership

Data Biz (Substack) - Strategic insights for data leaders

Featured articles:

  • Agile for Data Teams - Framework for Scrum/Kanban in analytics workflows (reduced backlog 8β†’4 weeks)
  • P0 Data Asset Classification - Automated criticality detection using dbt Exposures
  • The Voice of Data Among C-Level Executives - Strategic positioning for data leaders in executive conversations

🌭 Open Source Project

  • JimWurst - AI-powered personal Data Warehouse for exploring LLM-driven analytics patterns (semantic search over dbt docs, automated data quality alerts, natural language SQL generation)

πŸ”§ Production Systems

(Private repositories - available for technical interviews)

  • 1700+ dbt Models - Serving 7 business domains (Trust & Safety, Payments, CS, Operations, Sustainability, Transport, Consignment)
  • Airflow/Kafka Architecture - Event-driven data platform for real-time fraud detection & payment processing
  • Terraform Infrastructure-as-Code - Snowflake data warehouse management & deployment
  • Data Quality Framework - Elementary + dbt Exposures for P0 asset monitoring

πŸ”’ Enterprise code sanitized for confidentialityβ€”full architecture documentation available upon request


πŸ—οΈ What I Bring to Your Data Team

Leadership & Strategy

  • Built revenue-critical data infrastructure: €24M payment systems, fraud detection achieving 80% incident reduction
  • Scaled teams 0β†’3: Hired, onboarded, and mentored analytics engineers while pioneering Agile for data workflows
  • Cross-domain ownership: 7 simultaneous business domains managed (Fraud, Payments, CS, Ops, Sustainability, Transport, Consignment)
  • Executive partnerships: Direct CFO/COO/CTO collaboration on company-critical initiatives
  • Data governance at scale: P0 asset prioritization automated via dbt Exposures; led Data Mesh pilot with Amazon 6-pager format

Technical Architecture

  • Modern Data Stack: dbt (4+ yrs), Snowflake (4+ yrs), BigQuery (3 yrs), Airflow (7+ yrs), Terraform
  • Event-Driven Architecture: Kafka event streams for real-time fraud detection & payment processing
  • BI Platforms: Tableau (7 yrs), Looker (3 yrs), Metabase (3 yrs), Streamlit (4 yrs)
  • Data Quality & Observability: Elementary (3 yrs), CastorDoc (4+ yrs), dbt Exposures
  • Analytics Engineering: Dimensional Modeling, Data Marts, ETL/ELT, 1700+ production dbt models
  • Languages: SQL (Expert), Python

Business Domains

  • eCommerce | Luxury Fashion | Food Logistics | Supply Chain | Fraud Detection | Payments | Operations

🌟 Track Record

Metric Achievement Company
Business Impact €24M+ payment infrastructure redesign (CFO/CTO-sponsored) Vestiaire Collective
Operational Excellence 80% fraud reduction via data-driven detection systems Vestiaire Collective
Technical Scale 1700+ production dbt models across 7 business domains Vestiaire Collective
Team Leadership 0β†’3 analytics engineers hired, onboarded & mentored Vestiaire Collective
Platform Building Greenfield Data Warehouse serving 200+ users, 5 AWS regions Delivery Hero
Community Building Co-founded Data Guild (200+ members, 50+ countries, CTO-endorsed) Delivery Hero
Growth Analytics 22% order increase, 10% GMV boost through campaign analysis Foodpanda
Global Scope Product analytics for supply chain across 16-18 countries HelloFresh
Experience Span 8+ years | Markets: Berlin, Hong Kong, multi-region | Education: B.B.A. De Montfort University (UK)

🌐 Connect With Me

"Building data platforms that empower people to make better decisions"

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  1. davnnis2003 davnnis2003 Public

    My GitHub profile README

    1

  2. jimwurst jimwurst Public

    A monolithc reposiory of a DWH for personal data analytics and AI

    Python 3