Expert Data Engineer

Salary range: B2B 45-50 E/h + VAT 💰Ciklum is looking for an Expert Data Engineer to join our team full-time in Poland.We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.About the role:As an Expert Data Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.Responsibilities:Designing, developing, and deploying Power BI solutions, providing advanced data analytics, and creating dashboards and reports that deliver key insights to the businessData models design and implementationOptimize reports and dashboards for better performance by improving query speed and ensuring efficient data model designContributes design, code, configurations, manage data ingestion, closed to real-time processing, batch processing, ETL across multiple data storages and complex ETL pipelinesResponsible for performance tuning of complicated SQL and DAX queries, including deep SQL query optimizationsDevelop, execute, and maintain data processing workflows using Azure Synapse notebooksManage and optimize data storage solutions in Azure Data Lake Storage (ADLS), working extensively with Parquet files and applying advanced optimization techniques (e.g., partitioning, compression)Identify gaps and improve the platform’s quality, robustness, maintainability, and speedCross-train other team members on technologies being developed, while also continuously learning new technologies from other team membersContribute in the Unit’s activities and community building, participate in conferences, and provide excellence in exercise and best practicesRequirements:We know that sometimes, you can’t tick every box. We would still love to hear from you if you think you’re a good fit!3+ years of experience in developing BI solutions with Power BIProficient in Power BI Desktop and Power BI Service, including report and dashboard creation, data transformations, and DAX formulasStrong expertise in DAX (Data Analysis Expressions) for complex calculationsExperience with Power Query for data transformations and ETL processesSolid understanding of data modeling principles and best practices3+ years of experience coding in SQL(Azure SQL DB or MSSQL preferable), solid CS fundamentals including data structure and algorithm design Proven hands-on experience building, managing, and optimizing complex ETL pipelinesStrong experience with Azure Data Lake Storage (ADLS) and deep knowledge of Parquet file optimization techniquesDemonstrated experience writing and optimizing code within Azure Synapse notebooks2+ years contributing to production deployments of large backend data processing and analysis systemsExperience in data integration and ETL processesProficient with Azure Data Services (Azure Data Factory, Azure Synapse Analytics, etc.)Strong problem-solving and analytical skills, with a keen attention to detailExcellent communication skills, both written and verbal, with the ability to present complex data in a clear and concise mannerExperience in working with cross-functional teams and collaborating with stakeholders at various levels of the organizationKnowledge of professional software engineering best practices for the full softwareKnowledge of Data Warehousing, design, implementation and optimizationKnowledge of Data Quality testing, automation and results visualizationKnowledge of the development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operationsExperience participating in an Agile software development team, e.g. SCRUMExperience designing, documenting, and defending designs for key components in large distributed computing systemsA consistent track record of delivering exceptionally high-quality software on large, complex, cross-functional projectsDemonstrated ability to learn new technologies quickly and independentlyAbility to handle multiple competing priorities in a fast-paced environmentWhat’s in it for you?Strong community: Work alongside top professionals in a friendly, open-door environmentGrowth focus: Take on large-scale projects with a global impact and expand your expertiseTailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certificationsEndless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologiesFlexibility: Enjoy flexibility – full remote working possibilitiesCare: We've got you covered with company-paid premium medical package through LuxmedBenefits: Access the MyBenefit cafeteria platform, allowing you to choose perks that best suit your lifestyle and needsAbout us:At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.Explore, empower, engineer with Ciklum!Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.