For our client, a leading global provider of end-to-end software and cloud technology solutions, we are looking for an experienced hands-on Senior Analytics Developer / Senior Data Modeler with a strong background in dimensional data modeling and analytics solution design. This role is ideal for someone who enjoys designing scalable analytical models and delivering business-ready reporting solutions. This is a hands-on delivery role focused on data modeling, semantic modeling, and analytics development It is not a data engineering, pipeline development, team leadership, or advisory position.
This is a full-time remote contract role. We preferably seek candidates based in Serbia or Poland, while also considering candidates across the EMEA region.
Your Responsibilities
Design, develop, and maintain dimensional data models, semantic models, and analytical datasets (facts and dimensions)
Translate business requirements into scalable and high-performing analytical data models
Develop and optimize Power BI dashboards, paginated reports, Apps, KPIs, and complex DAX calculations
Design robust semantic models that enable self-service analytics and trusted reporting
Collaborate closely with Data Engineers to ensure data models are built on reliable and efficient data pipelines
Monitor and continuously improve data quality, model performance, and reporting reliability
Implement and maintain data governance, security concepts, and Row-Level Security (RLS)
Create and maintain technical documentation, modeling standards, and best practices
Act as the technical point of contact for data modeling, semantic layer design, and visualization implementation
Share knowledge and collaborate with global Data & Analytics teams and cross-functional stakeholders
Work effectively in an international environment, appreciating cultural diversity and global collaboration
Your Profile
Bachelor's degree in Computer Science, Information Systems, Data Analytics, or a related field
Several years of experience as a Senior Analytics Developer or Senior Data Modeler
Proven expertise in dimensional data modeling (Kimball methodology, Star Schema, Snowflake Schema)
Proven track record building complex, enterprise-grade dimensional/multidimensional models (not just report-level data models)
Strong hands-on experience designing enterprise-scale semantic models and analytical datasets.
Advanced knowledge of Power BI, including semantic models, DAX, paginated reports, dashboards, and Apps
Excellent SQL skills and experience working with enterprise data warehouses
Solid understanding of analytics architecture, data governance, and data quality principles
Experience working with business stakeholders to translate requirements into scalable analytics solutions
Strong analytical thinking, communication, and stakeholder management skills
Experience working in global, multicultural teams and able to drive and deliver work independently, with minimal guidance and supervision
Fluent English; German is an advantage
What We're Looking For
We are looking for a genuine hands-on Senior Analytics Developer who brings deep expertise in complex dimensional data modeling and semantic layer design. You enjoy creating scalable analytical solutions that enable business users to make better decisions. Rather than focusing on data pipelines or ETL development, your strength lies in transforming business requirements into high-quality analytical models and delivering enterprise-grade reporting solutions.
General Conditions:
Start Date: Ideally available to start immediately
Workload: 100% (full-time)
Working Model: Remote/Hybrid
Duration: Long-term project with option to extend

Callista is a Swiss IT company specializing in providing experts and teams for consulting and engineering. With many years of experience in designing and building enterprise platforms and a clear focus on Agentic AI, we are shaping the digital future of our clients. We combine the proximity and quality of a Swiss partner with the scalability of our Nearshore Center and our Managed AI Agents.
We combine consulting on Data Platforms & Agentic AI with flexible staffing – delivering the right experts to immediately strengthen your team.