Junior Data Engineer: Data Flow & Architecture
In that time, we have supported more than 2 millions customers in France, Spain, and Italy, while investing in new verticals and positioning ourselves as a highly efficient, innovative, and competitive scale‐up in a rapidly growing market.
We are always on the lookout for talent ready to join a dedicated and motivated team driven by a meaningful project. Working with us means embracing a culture of excellence, innovation, and real impact.
As a Junior Data Engineer you will be the guardian of data quality and lineage. You'll be assigned to a squad where the complexity of data flows is high. You won't just move data; you will design the logic that ensures our BigQuery data lake remains a "Single Source of Truth".
Advanced ETL/ELT: Design and implement data processing flows using Python and Airflow.
Data Lineage: Help develop tools that track data from source to destination, ensuring transparency for all users.
Reporting & Quality: Perform daily reporting on the health of customer and internal data flows.
Build internal Data Engineering tools to replace manual tasks—no SaaS "black boxes" here.
Engineering school background in Software Development.
Tech: Mastery of Python (OOP) and strong SQL (BigQuery is a plus).
The Edge:



You love designing complex systems and have a high attention to detail regarding data integrity.
With over 46 different nationalities, it's not uncommon here to start a sentence in English and finish it en français or en español.
Compensation : a plan for Subscription Warrants for Company Creators (BSPCE) in accordance with company regulations, as well as a Pluxee card to manage your tax level through a voluntary compensation system across different services (transportation, dining, and childcare).
Health : medical insurance through Alan or Sanitas to manage your healthcare expenses in an ultra‐simple, paperless way, with up to 50% coverage by papernest (after 6 months in the company).
️ Training : the development of our employees is essential. You will have access to ongoing training tailored to your goals, whether it involves technical, language, or managerial skills.
Remote Work : enjoy 2 days of remote work per week to optimise your focus and efficiency.
Interview with Alex - Head of Data Engineering
We particularly encourage applications from women. Full‐time
Information Technology
Technology, Information and Internet
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📌 Data Engineer // Junior (Barcelona)
🏢 papernest
📍 Barcelona