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Wojtek BakWB

Wojtek Bak

BI Expert | Data & Analytics Architect

€490/day
Baar, CH
15+ years

Average response time: 1 hour

About Wojtek

Senior Business Intelligence Expert and Data & AI Architect with over 20 years of experience designing, delivering, and scaling enterprise-grade analytics and AI platforms. Strong background in modern BI architectures, cloud data platforms, and Generative AI systems, with a proven ability to translate complex business requirements into robust, scalable technical solutions.

Typical Engagements
  • Designing enterprise BI and analytics platforms
  • Modernizing legacy reporting into cloud-native BI solutions
  • Architecting AI-powered reporting and decision-support systems
  • Implementing Generative AI assistants for internal knowledge and documents
  • Defining data governance, security, and operating models
  • Acting as Lead Architect / Interim Head of BI or Data
Core Expertise

Business Intelligence & Analytics
• End-to-end BI architecture design (data ingestion → modeling → reporting)
• Enterprise reporting and financial analytics
• KPI frameworks, performance management, and executive dashboards
• Semantic models and enterprise data marts
• Power BI architecture, governance, and performance optimization

Data Architecture & Engineering
• Modern data platforms (Lakehouse, DWH, Medallion architecture)
• Azure Data Lake, Azure SQL, Synapse, Fabric
• Data integration from ERP, CRM, CPQ, HR, SharePoint, APIs
• Incremental loading, historical tracking, data quality frameworks
• Scalable, cost-optimized cloud architectures

Generative AI & Advanced Analytics
• Generative AI solutions for enterprise use cases
• RAG architectures (document search, knowledge assistants)
• AI-driven document processing, summarization, and ranking
• Agent-based AI workflows and orchestration
• Secure, compliant AI architectures (Azure OpenAI, identity-based access)

Strategy & Leadership
• Data & AI strategy definition
• BI & AI roadmap creation
• Building and scaling Data / AI teams
• Establishing Data & AI Centers of Excellence
  • Polish

    Native or bilingual

  • English

    Fluent

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

Experience

  • Odyss.ai AG
    Delivery Lead / BI & AI Architect
    TECH
    June 2023 - Today (3 years)
    Baar, ZG, Switzerland
    Senior Business Intelligence Expert and Data & AI Architect with over 20 years of experience designing, delivering, and scaling enterprise-grade analytics and AI platforms. Strong background in modern BI architectures, cloud data platforms, and Generative AI systems, with a proven ability to translate complex business requirements into robust, scalable technical solutions.

    Seasoned Professional, experienced in building Data & AI Centers of Excellence, leading multidisciplinary teams, and delivering high-impact analytics solutions for global organizations across finance, industry, retail, and professional services. Recognized for bridging strategy, architecture, and hands-on delivery.

    Core Expertise

    Business Intelligence & Analytics
    • End-to-end BI architecture design (data ingestion → modeling → reporting)
    • Enterprise reporting and financial analytics
    • KPI frameworks, performance management, and executive dashboards
    • Semantic models and enterprise data marts
    • Power BI architecture, governance, and performance optimization

    Data Architecture & Engineering
    • Modern data platforms (Lakehouse, DWH, Medallion architecture)
    • Azure Data Lake, Azure SQL, Synapse, Fabric
    • Data integration from ERP, CRM, CPQ, HR, SharePoint, APIs
    • Incremental loading, historical tracking, data quality frameworks
    • Scalable, cost-optimized cloud architectures

    Generative AI & Advanced Analytics
    • Generative AI solutions for enterprise use cases
    • RAG architectures (document search, knowledge assistants)
    • AI-driven document processing, summarization, and ranking
    • Agent-based AI workflows and orchestration
    • Secure, compliant AI architectures (Azure OpenAI, identity-based access)

    Strategy & Leadership
    • Data & AI strategy definition
    • BI & AI roadmap creation
    • Building and scaling Data / AI teams
    • Establishing Data & AI Centers of Excellence
    • Stakeholder management at C-level
    Microsoft Power BI Business Intelligence (BI) Strategy AI and Advanced Analytics Data Architecture Cloud Platforms and Infrastructure
  • WB Consulting Group
    Founder & CTO
    TECH
    August 2014 - Today (11 years and 10 months)
    Warsaw, Poland
    • • Data & AI projects delivery, including BI and Data Warehousing, Data Science and many more
    • • Managing a diverse multinational team of ~25-100 professionals (project managers, developers, data experts, data scientists, analysts, testers)
    • • Promoting a company's image & marketability
    • • Managing a portfolio of projects
    • • Building relationships with customers
    • • Recruiting, coaching and training new team members
  • Clouds On Mars
    Advisory to the Board / Data&AI Architect
    June 2022 - August 2025 (3 years and 2 months)
    Active participation in Data&AI applications design and data architecture creation.
    • • Design and creation of dimensional models and ETL processes.
    • • Liaising with business and technical consultants to explore business process improvement opportunities.
    • • Requirements analysis and BI reports development.
    • • Reports optimization.
    • • Leading an internal team of Data Engineers and Power BI experts.
    • • Microsoft Power BI Governance.
    • • 1000+ users trained and prepared for leveraging new analytical tools.

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Education

  • Ph.D. degree studies
    SGH Warsaw School of Economics
    2012
    Ph.D. degree studies
  • Master of Science
    Politechnika Warszawska
    2012
    Master of Science

Skill set

Categories