Senior Data Solution Engineer

Stellenbeschreibung:

Own around 2 custom client projects per month, end-to-end, from needs qualification to final restitution
Build deliverables in Python (pandas) notebooks, SmartDash dashboards, mockups and SQL (BigQuery / Snowflake)
Qualify client needs with Account Executives and turn them into scoped, sellable analyses
Build models where depth is required, from footfall to performance forecasting, to sharpen recommendations
Present results directly to clients, handle live questions and turn feedback into next steps
Master MyTraffic’s data ecosystem, including source production, capabilities and limitations
Document each project and hand it over cleanly
Share insights with the Product team to help turn custom work into platform capabilities
Collaborate with the Custom Solutions, Account Executive, Product and Data teams
Complete a live client restitution simulation and technical debrief during recruitment

Requirements

3+ years in a technical or solution engineering role in a SaaS company, delivering analyses or custom solutions to external clients
Strong Python (pandas) and SQL; ability to build a complete analysis on large datasets without support
Comfortable building predictive models (forecasting) and turning them into a business recommendation
Able to produce client-ready outputs, dashboards, mockups and restitution decks
Spanish and English fluent (required); French is a plus
Freelance status with your own company structure
Based in Barcelona or Madrid
Available for a full-time mission of 4 to 5 months starting ASAP
Client communication, autonomy and business sense, ownership, agility, fast learning and teamwork

Core Competencies

Demonstrates expertise in Python (Pandas) and SQL for building analyses and predictive models, while effectively communicating insights to clients in both Spanish and English. Proven ability to manage custom projects end-to-end, ensuring high-quality deliverables and collaboration across teams.