Niels Makedonsky
Data Architect — Snowflake · Power BI · Salesforce
Salary / Daily rate
Paris, France
Mobility: Paris
Freelance
Can come onsite
Skills
Languages
About me
Intro
Freelance Data Architect. I design and deliver data platforms (Snowflake, Power BI, Salesforce) and put them into use at the client — including AI. 10 years from PwC to end-to-end data projects. Architecture: Modern Data Stack on Snowflake (medallion), Kimball, RBAC. Power BI: 5 years, ~100 dashboards, DA-100. Salesforce ↔ DWH, data strategy, on-site AI delivery. Results: Atland (SCPI) — Snowflake + Airbyte + Power BI, ~50% migrated in 6 months. Lincoln — 4h/week saved per consultant.
Work experience
Data Architect
FreelanceFreelance
Oct 2023 - Present
3 years 1 month
Vétheuil, France
Data Architect freelance — conception et livraison de plateformes data (Snowflake, Power BI, Salesforce) et mise en œuvre chez le client, y compris IA. Atland (groupe SCPI coté) — Data Architect / Data Engineer: - Architecture data scalable sur Snowflake (médallion) - Ingestion via Airbyte, intégration Salesforce et SQL Server - Monitoring et pipelines entre applications - Business intelligence Power BI (~50% migré en 6 mois) Autres missions: apps SaaS/IA (GPT-4, Next.js, Docker) ; outillage RH automatisé (évaluation soft skills → PDF).
Digital manager
Pwc
Oct 2021 - Oct 2023
2 years 1 month
Neuilly-sur-Seine, France
- Led the internal digital transformation for a corporate finance business unit: roadmap definition, change management, coordination between IT and business teams - Provided strategic consulting and support to internal and external clients, with a strong focus on achieving measurable financial gains (e.g., developed an Excel purchasing/sales tool for the ERP pre-migration phase)• Developed automation solutions for data and document workflows using Python, App Script, VBA, Power Query (e.g., automated tax declaration PDFs—saving 400h/year per client; transformation of global payroll files for HRIS; automated payroll audit generation; consolidation of accounting entries) - Developed data visualization solutions (Power BI): Real estate portfolio tracking; performance monitoring for payroll outsourcing teams; social reporting on gender equality using DSN (nominative social declaration) data - Trained users on data transformation tools (Power BI, Alteryx)
Digital transformation project manager
Lincoln-group
Aug 2018 - Jul 2021
3 years
Greater Paris Metropolitan Region · On-site
- Launched and led internal digital transformation, defined an 18-month roadmap - Managed innovation projects using both Waterfall and Agile (Scrum) methodologies in a multi-site environment (8 offices across Europe and Asia); led workgroups (9 people), e.g.: Browser extension for task automation (10% FTE savings per consultant) CV/job description matching application (Azure Cloud, Databricks, Python, Pyspark, SQL) Digital applications: intranet, website, external candidate portal, integrations with messaging systems (Cisco), automated meeting room booking, external API connections (SIRENE business directory) • Recruited team members and managed external providers (licenses, development, and budgeting) • Defined and implemented data governance: conducted data quality audits (with monitoring reports using Power BI), designed data cleaning procedures (SQL, Dataiku), developed new data models and reference frameworks, and delivered training • Operational excellence: Developed BI dashboards (Power BI, DAX) for performance monitoring with over 100 KPIs (e.g., average project duration, candidate presentation rate to clients) • Conducted technology watch to identify innovative solutions (tool benchmarking, webinars, conferences)
ADEO
Sep 2015 - Jul 2018
2 years 11 months
7620 Paris, Denmark
IT project manager
May 2017 - Jul 2018
1 year 3 months
7620 Paris, Denmark
- Role of CIO across 3 sites in France (Ivry, Paris, and Lille) in collaboration with the CIOs of Leroy Merlin and Adeo - Deployment of infrastructure and workstations for a new site in Paris (Station F opening at the end of 2017) - Management of digital transformation activities: integration and migration to new tools (billing, checkout, project management, CRM) – change management – Compliance with security and data protection (GDPR) - Migration from Google Suite to Office 365
Engineering Coach
Sep 2015 - May 2017
1 year 9 months
94200 Ivry-sur-Seine, France
- Opening of the first fabalab or makerspace from the american brand "Techshop" in Europe - Electronics and Mechanical Engineering Lead: consulting and supporting technical projects, delivering services, and facilitating workshops for companies - Managerial support: structuring and optimizing business activities and processes, including team scheduling optimization and Excel tool development - Development of projects for corporate workshops
Internship - Software design
TechnipFMC
Jun 2013 - Dec 2013
7 months
Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
Skills: Données de l’entreprise
Internship - 3D printer design and building
INGELIANCE TECHNOLOGIES
Jun 2012 - Aug 2012
3 months
33700 Mérignac, France
Skills: Fabrication assistée par ordinateur (FAO) · Procédés de fabrication · Conception assistée par ordinateur (CAO)
Internship
SNECMA
Jul 2010 - Jul 2010
1 month
Villaroche
Skills: Procédés de fabrication
Education
ISAE-ENSMA
Ingénieur de l’ISAE-ENSMA (Institut Supérieur de l’Aéronautique et de l’Espace formation ENSMA)
2010 - 2014
4 years 4 months
École de technologie supérieure
Certificate
2013 - 2013
1 month
Lycée Saint Louis
Preparatory courses
2008 - 2010
2 years 1 month
Licenses & certifications
Microsoft Data Analyst Associate (DA-100)
Issued: Nov 2021
Portfolio
