Senior System Analyst – REST APIs, Data & BI

Jit Team

Warszawa

Hybrid

PLN 148,000 - 185,000

Full time

48 hours ago

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Job summary

Jit Team in Warsaw seeks an experienced System Analyst/Architect to design data-driven solutions for banking products. You will own REST API architecture, data modelling, and data governance across complex ETL workflows.

Join an elastic hybrid role with offices 2-3 days a week, collaborating with cross-functional teams on SDLC—Agile, Waterfall, and DevOps—and delivering Power BI dashboards to support strategic decisions.

Qualifications

Minimum 5 years of experience as a System Analyst or System Architect.
Strong hands-on REST API design and integration.
Proficiency in data modelling, including ER and DB design.
Solid understanding of data governance, quality and compliance.
Experience in ETL development and data integration.
Power BI reporting and dashboard development.
Strong BPMN and UML knowledge for process modelling.
Experience across SDLC methodologies: Agile, Waterfall, DevOps.
Familiarity with Gherkin for requirements and test scenarios.
GitHub for version control and collaboration.
Experience with banking data and credit products.

Responsibilities

Analyze and document business and technical requirements, ensuring alignment with stakeholder expectations.
Design high-level and low-level system architecture documentation (HLD/LLD).
Develop and maintain scalable REST APIs with best practices.
Collaborate with cross-functional teams to define and implement data integration and ETL processes.
Create and maintain logical and physical data models for consistency and scalability.
Ensure compliance with data governance standards, including data quality and lineage.
Translate business processes into technical solutions using BPMN and UML.
Support SDLC in Agile, Waterfall, and DevOps environments.
Design, develop, and maintain Power BI dashboards to support decisions.
Bridge business and technical teams, ensuring clear communication and understanding.
Contribute to enterprise architecture discussions and align solutions with strategic direction.
Participate in code and design reviews and maintain high-quality documentation.
Support version control and collaboration using GitHub.