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Pierre ChojkaPC

Pierre Chojka

Data & IS Architect

€800/day
9 projects
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Pierre

I support growing companies in two complementary areas:

▸ IS Architecture: Structuring, mapping, and prioritizing the evolution of your information system. From initial audit to actionable roadmap, including assistance in selecting technology partners and defining large-scale programs.

▸ Data Engineering & Governance: Transforming a data stack that produces exports into a system that delivers value: warehouse architecture, proactive data quality, data catalog, and business governance. For CTOs building their first data team as well as Heads of Data who need to scale.

In both cases, the method is the same: we start by understanding your situation, not by selling a service. A fixed-fee audit with no commitment, a roadmap that your teams can adopt, and implementation assistance if you want to go further.
What differentiates me from a large firm: you won't get an 80-slide report that no one implements.
What differentiates me from a technical freelancer: you won't get an implementation without a strategic guiding principle.

Preferred sectors: commerce, retail, B2B, data marketing.
Geographic areas: Lyon, Paris, remote.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Lyon (up to 20km)

Experience

  • Salomon
    Data Architect
    SPORTS
    May 2025 - Today (1 year and 1 month)
    Lyon, France
    → Daily interface with enterprise architects to ensure consistency between IS evolutions and the data ecosystem: tool migrations, version upgrades, schema changes

    → Complete setup of a data warehouse observability stack: data contracts, automated quality tests, clear ownership by domain

    → Technical implementation of data governance principles and policies in direct collaboration with the governance manager: translating business rules into concrete operational measures

    → Maintenance of a live map of ongoing activities and their impact on data flows
    Snowflake DBT Data Quality Data Architecture Data Warehouse
  • OVHcloud
    Enterprise Architect
    TELECOMMUNICATIONS
    September 2023 - May 2025 (1 year and 8 months)
    Lyon, France
    → Functional and technical design of the product catalog and its interactions with the IS: a critical scope for the group's commercial and technical consistency.

    → Architecture and framing of the electronic invoicing program: anticipation of regulatory obligations for a major European cloud player

    → Review of publishers and strategic recommendations within the framework of calls for tenders

    → Facilitation of multi-team architecture committees (Customer Service, IT Service Management)

    → Redesign of ITSM processes on ServiceNow / MyCat
    IS Architecture Business Strategy Organizational Transformation Digital Transformation IS Strategy
  • EPITA
    Lecturer
    EDUCATION AND E-LEARNING
    September 2021 - Today (4 years and 9 months)
    Lyon, France
    Preparation and delivery of courses on the following topics:

    - New Programming Languages and Frameworks
    - Information System Architecture and Urban Planning

    Organization of a capstone project over the semester to validate acquired skills
    Python Node Software Engineering API Pedagogy

Reviews

5.0

Out of 2 ratings

B

Boubker

mediarithmics

Reviewed on 8/23/2023

B

Boubker

mediarithmics

Reviewed on 5/9/2023

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Education

  • Computer Engineering
    EPITA
    2018
    Spécialisation Systèmes d'information et Génie Logiciel

Skill set

Categories