Senior Data & AI Engineer w Warszawa, Polska

Expected, SQL, PySpark, MS fabric

About the project, We are looking for a Senior Data & AI Engineer who combines strong data engineering skills with a customer-oriented and advisory mindset. In this role, you’ll work closely with our customers to understand their business and data challenges, recommend the right solutions, and turn them into scalable, practical Data & AI solutions., , If you have experience in an IT services or consulting environment, enjoy working directly with customers and want to work with modern Microsoft Data & AI technologies, this could be a great fit.

Your responsibilities, Design and develop Data & AI solutions for our customers., Work closely with customers to understand their business needs and translate them into effective technical solutions., Act as a trusted technical advisor, proactively recommending solutions, improvements and new opportunities., Design, build and maintain semantic models in Power BI, with a strong focus on data modelling best practices., Develop advanced DAX measures and calculation logic to support complex business reporting needs., Build and maintain high-quality, scalable Power BI reports and dashboards., Use SQL to analyse, transform and prepare data feeding into your models., Work within Microsoft Fabric to support, extend and troubleshoot your BI solutions - lakehouses, dataflows, pipelines., Use notebooks (PySpark/SQL) within Microsoft Fabric to inspect and perform light data transformations., Develop and work with Data Agents in Microsoft Fabric., Participate in the development and deployment of AI solutions., Collaborate with Data Engineers, BI Developers, Architects and other technical specialists., Participate in customer meetings and presales activities., Take ownership of technical solutions from design through implementation and deployment., Troubleshoot existing solutions and continuously look for ways to improve their performance, quality and usability., Share knowledge and contribute to the development of Data & AI best practices and capabilities within the team., Support and mentor less experienced team members.

5+ years of experience in Data Engineering, BI, Data & Analytics or a similar technical role., Deep, hands-on experience with Power BI, including semantic model design and data modelling (star schema, relationships, calculation groups, etc.)., Strong DAX skills - comfortable writing complex measures, not just basic aggregations., Solid working knowledge of SQL., Working familiarity with Microsoft Fabric (lakehouses, pipelines, notebooks)., Comfortable navigating a PySpark notebook even without fluency - willing to read, adapt, and troubleshoot code., Hands-on experience developing Data Agents in Microsoft Fabric., Experience with deploying AI solutions in a business or customer environment., Ability to understand business needs and translate them into effective technical solutions., Customer-oriented mindset: you enjoy working directly with customers and focus on creating business value, not just delivering technical requirements., Strong sense of ownership and willingness to take responsibility for solutions and outcomes., Proactive approach: you identify problems and opportunities and recommend solutions., Experience working in an IT services or consulting environment., Experience in customer-facing roles and participating in presales activities., Good communication and stakeholder management skills., Good command of English (at least B2).

Optional, Hands-on PySpark development experience., Microsoft certifications related to Power BI, Fabric, Azure or AI., Experience mentoring other engineers or taking technical leadership of solutions.

What we offer, Opportunities for professional development (participation in training, conferences, mentoring, shadowing are just some of the tools that support our people’s growth), Work with the largest Microsoft partner in Poland, Stable employment in a company that has been in the market for over 30 years, Hybrid or remote work model, Non-corporate environment with focus on high level of collaboration among teams and team members, Focus on integration – we meet for joint trips, picnics, play board games at work, and organize group outings, Benefits package – Multisport card, private medical care, life insurance, subsidies for English classes. Plus, fresh fruit every Wednesday and ice cream treats on Thursdays during the summer months!

Benefits, sharing the costs of sports activities, private medical care, sharing the costs of foreign language classes, sharing the costs of professional training & courses, life insurance, remote work opportunities, flexible working time, fruits, corporate products and services at discounted prices, integration events

APN Promise S.A., At Promise Group, we don’t just deliver technology. We accelerate business. As a trusted Microsoft Partner, we help organizations unlock the full potential of Microsoft technologies through cloud, AI, security, modern workplace, data, and infrastructure solutions. Through our work with both business customers and partner networks, we deliver innovative solutions that drive digital transformation across CEE, the Baltics, SEE, and CCA markets., , We work in an international environment where collaboration and a proactive approach matter. We believe in taking responsibility, building relationships based on trust and respect, and always looking for better ways to learn, grow, and improve. We value people who take ownership of their work, share knowledge, and enjoy working toward common goals.

This is how we work,