Senior System Analyst (Data & Integration) REST APIs, ETL, Power BI Warsaw

Senior System Analyst (Data & Integration)

Job location: Warsaw

Responsibilities

• Gather, analyze and document business and technical requirements, translating them into functional and system specifications
• Create and maintain high-level and low-level design documentation
• Design and analyze scalable REST APIs and support integration architecture initiatives
• Develop logical and physical data models, ensuring alignment with data architecture and governance standards
• Support data lifecycle management, data lineage, quality standards and compliance requirements
• Analyze and document business processes using BPMN and UML methodologies
• Contribute across the Software Development Life Cycle, collaborating within Agile, Waterfall or DevOps environments
• Support ETL development and data integration initiatives
• Build and enhance Power BI reports and dashboards to support business decision-making
• Use Python for analysis, automation or data-related tasks where required
• Collaborate with architects, developers and business stakeholders to define robust, scalable solutions
• Ensure alignment with enterprise architecture principles and support continuous improvement across systems and processes

Requirements

• 5+ years of experience as a System Analyst, Technical Analyst, or System Architect
• Hands-on experience with REST APIs, integrations and API design principles
• Strong experience with data products, ETL development, and data modeling
• Practical experience with Power BI development (reports and dashboards)
• Good knowledge of banking data and credit products
• Experience gathering and documenting functional and non-functional requirements
• Practical knowledge of BPMN, UML, and technical/system documentation
• Understanding of data governance, data quality and data architecture principles
• Knowledge of SDLC methodologies (Agile, Waterfall, DevOps)
• Python skills for data-related analysis or development tasks
• Strong analytical thinking and problem-solving capabilities
• Excellent stakeholder communication and cross-functional collaboration skills
• English proficiency at B2 level or higher

Nice to have

• Experience with Snowflake
• Experience in enterprise-scale data platforms and modern cloud-based data architectures
• Exposure to banking domain data products and advanced reporting ecosystems

Offer

• Private medical care
• Co-financing for the sports card
• Constant support of dedicated consultant