Mid/Senior Data Engineer

<h2>Hi there! 👋🏻</h2><p dir="ltr">We’re <strong>Tooploox</strong>, a <strong>Solvd Inc</strong>. company. </p><p dir="ltr">We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&amp;D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.</p><p dir="ltr">Now, as part of Solvd Inc., we’re building on our strengths with even greater global reach and resources — while keeping the creative, human-scale culture that defines us here in Poland. If you want to work on meaningful AI projects, with space to grow and the freedom to innovate, you’ll feel right at home.</p><p dir="ltr"><strong>Feel invited!</strong><br/></p><p>We're on the lookout for a <strong>Mid/Senior Data Engineer</strong> to take on a pivotal role in our team. You'll be at the heart of <strong>working with data and focusing on scalable batch</strong> and streaming data pipelines which will <strong>empower Agentic AI solutions</strong> for one of our biggest clients. Robust software engineering and quality assurance will run in parallel with your development work, underlining the importance of accuracy and reliability in everything we do.<br/></p><h3>What you will do:</h3><ul> </ul><ul> <li>Design, develop, and maintain scalable batch and streaming data pipelines.</li> <li>Work with Python to transform, process, and integrate data.</li> <li>Handle a mix of structured and unstructured data, including working with a vast array of database technologies (SQL, NoSQL, Graph, Vector).</li> <li>Optimize performance across big data workflows, including tuning Spark jobs.</li> <li>Participate in graph and vector database migrations.</li> </ul><h3>Experience and skills you need to join us:</h3><ul> <li>At least<strong> 3 years</strong> of commercial experience as a Data Engineer.</li> <li>Strong knowledge of <strong>Python</strong> and <strong>SQL</strong>.</li> <li>Solid experience working with <strong>graph</strong> and <strong>vector databases</strong>.</li> <li>Proven experience with <strong>HDFS storage</strong>.</li> <li>Deep experience with <strong>Apache Spark</strong> (especially PySpark).</li> <li>Familiarity with distributed computing, data warehousing, and performance optimization techniques.</li> <li>Strong problem-solving and communication skills.</li> <li>Fluency in <strong>Polish and English</strong>.</li> </ul><h3>It would be great if you also have:</h3><ul> <li>Knowledge of <strong>Java</strong>.</li> <li>Basic understanding of <strong>Generative AI</strong> and <strong>MCP Servers</strong>.</li> <li>Experience with <strong>Apache Gremlin</strong>.</li> <li>Past experience with backend software engineering.</li> </ul><h3 dir="ltr"><strong>How we work:</strong></h3><p><strong></strong>At <strong>Tooploox</strong> 💎, you have the <strong>flexibility to choose your working hours ⏰ and location </strong>📍. While we value <strong>remote work</strong>, we also believe in <strong>building relationships </strong>🤝and invite you to join us in our <strong>Warsaw and Wrocław offices </strong>🏢. Enjoy <strong>a relaxed atmosphere </strong>🍃 and try some “home-made” pizza 🍕 from our office pizza oven. We l<strong>ove having pets 🐶 in the office, </strong>so feel free to bring yours along.😁</p><p><strong>Join us and shape the future of AI while working the way you like!</strong></p><ul> </ul>