You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Wojtek BakWB

Wojtek Bak

BI Expert | Data & Analytics Architect

EUR 490/Tag
Baar, CH
15+ Jahre

Durchschnittliche Reaktionszeit: 1h

Über 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
  • Polnisch

    Muttersprachlich oder zweisprachig

  • Englisch

    Verhandlungssicher

Vor Ort möglich
Baar (bis zu 50 km)

Projekt- und Berufserfahrung

  • Odyss.ai AG
    Delivery Lead / BI & AI Architect
    HIGHTECH
    Juni 2023 - Heute (3 Jahre)
    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 Strategie (BI) KI & Advanced Analytics Data Architecture Cloud-Plattformen & Infrastruktur
  • WB Consulting Group
    Founder & CTO
    HIGHTECH
    August 2014 - Heute (11 Jahre und 10 Monate)
    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
    Juni 2022 - August 2025 (3 Jahre und 2 Monate)
    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.

Empfehlungen

Sei die erste Person, die Wojtek empfiehlt

Teile Deine Erfahrung aus der Zusammenarbeit mit diesem Freelancer.

Diese Freelancer passen auch zu Ihren Kriterien

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Ausbildung und Abschlüsse

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

Fähigkeiten

Kategorien