Senior Data Engineer

Description Lengow is a leader in intelligent e-commerce solutions that help brands and retailers drive profitable growth across the digital shelf. With powerful feed management, global price monitoring, and robust data capabilities, Lengow’s comprehensive SaaS product suite enables merchants to amplify product visibility online, outrun competition with informed pricing, multiply sales on marketplaces, and monitor brand presence among distributors. Since 2009, Lengow has fueled digital growth for over 3,600 customers across thousands of marketing and sales channels in over 60 countries. Our Tech & Data Team The Tech, Data, and Product team comprises 70+ people from diverse backgrounds, working in our offices in Nantes, Paris, and Barcelona. Our products are developed thanks to six autonomous product teams, each working on a specific business domain. Each team is led by a Product Manager and Engineering Manager working with a dedicated small team of developers (4 to 8 people). The Data team (3 members) is a key driver of innovation at Lengow. From enabling access to insights for employees to creating custom data products for clients, our mission is to transform raw data into business impact. You’ll report to the Head of Data and work closely with our Tech, Product, and business teams as we expand our scope and shape the future of data at Lengow. What the Data Team Does Empower business decisions with relevant insights and accessible data tools. Guide product development through data-driven features and insights. Manage and optimize custom data products for clients. Enhance our data stack and tools for scalability and performance. Cultivate a data-first culture by translating business needs into actionable insights. Your Mission We are seeking a Senior Data Engineer to join our newly formed team. With access to vast data—thousands of catalogs, millions of products, and billions of entries scraped from countless e-commerce websites—you’ll play a pivotal role in unlocking its full potential and driving impactful value for European e-commerce leaders. You’ll work closely with technical and business stakeholders, taking ownership of impactful projects that drive business growth and shape our data strategy. Key Responsibilities Be an expert in our data models, tools, and 4 flagship products. Drive the technical evolution of our data transformation. Lead key technical projects in our data roadmap, such as product analytics initiatives, data model reviews and frameworks to managed data products for clients efficiently. Build internal insights tools for employees (dashboards, reports). Continuously document progress, solutions, and best practices. Recruitment Process Pre-interview: Chat with Alexandre, Head of People (30'). Team interview: Meet Sebastien (VP Data) and team members (60'). Final interview: Present a technical case to Sebastien and Olivier (Chief Product and Technology Officer) (60'). We’re seeking a proactive, collaborative, and impact-driven data expert to join our agile team. Here’s what you bring to the table: Experience: 5+ years in data engineering or a similar role, with a track record of delivering business impact. Expertise: skilled in coding, data modeling and design, and aligning technical solutions with business goals. Collaboration: a natural mentor and communicator who fosters teamwork and inspires those around them. Mindset: a proactive, autonomous professional. Working in a small team can mean juggling with roles of Data Analyst, Data Engineer, BI Developer, etc. Tools & tech: experience with SQL, BigQuery, Google Cloud, ETL/ELT tools (e.g., Talend, Apache NiFi), and data visualization tools (e.g., Looker Studio). We value your ideas and welcome recommendations on tools and technologies to amplify our business impact. Bonus points if you: Know and are passionate about web and e-commerce. Bring fresh perspectives to our data challenges. ✨ Joining Lengow is also an opportunity to benefit from many advantages : Ticket restaurant 8 euros by day Malakoff Humanis Private insurance & Prevoyance. 3 Remote days per week Flexible hours Bike mileage allowances or 50% of transportation tickets. Remote allowances Professional events (Devoxx, Meetup ...) and regular internal cohesion. Weekly Happy Break on Thursday Evening at the office with food and beverage Syntec forfait jours with RTT - 218 annual working days, ie minimum 9 days off on top of 5 weeks legal paid leave Choose your laptop OS. You can work on MacOS, Windows or Linux.