Senior Data & AI Engineer in Berlin

Promise Group is a leading Microsoft partner in CEE region, offering a wide range of products and services for clients from various economic sectors, including finance, telecommunications, media, energy, manufacturing, trade, services, public administration, education, and healthcare.

The company has been operating since 1991 and, since 1996, has been the largest provider of Microsoft solutions in Poland.

Promise Group specializes in software licensing optimization, IT systems design, implementation, maintenance, and business application development.

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.

Key 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 (Py Spark/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.
• Our Requirements
• 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 Py Spark 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).
• Nice to have
• Hands-on Py Spark development experience.
• Microsoft certifications related to Power BI, Fabric, Azure or AI.
• Experience mentoring other engineers or taking technical leadership of solutions.
• We Offer
• The opportunity to work on international Data & AI projects and solve real business challenges for our customers.
• Hands-on work with the Microsoft Data & AI ecosystem, including Power BI and Microsoft Fabric.
• A role where you can combine technical expertise, customer advisory and solution design.
• A team of experienced technology professionals who value knowledge sharing and continuous learning.
• Opportunities to develop your skills through certifications, training and hands‑on projects.
• Exposure to different customers, industries and business challenges.
• The opportunity to influence how we build and deliver our Data & AI solutions.
• A culture based on ownership, expertise, collaboration and customer focus.
• 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!

Our Values

Promise Group is dedicated to collaboratively enhancing technological competencies and inspiring individuals and organizations to achieve their full potential.

Our culture is built on open communication, mutual respect, responsibility, trust, and commitment.

We prioritize transparent dialogue and active listening, value diverse perspectives, and maintain healthy relationships by addressing concerns constructively.

We take responsibility for our actions, keeping our promises and learning from mistakes.

Trust is fundamental; we avoid superficial judgments and build strong connections.

Our commitment to continuous improvement drives us to hone our skills, tackle new challenges, and pursue innovative initiatives, ensuring we make a positive impact on our clients, employees, and the broader community.

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