Power BI Developer at ARHS – Warsaw | Jobyssey

Design and develop enterprise-level Power BI solutions, including dashboards, data models, custom solutions, and paginated reports
Develop and optimize Microsoft SQL Server applications using T-SQL, database views, and efficient data access techniques
Design and develop data, business logic, and user interface layers
Develop data models and analytics solutions using DAX and Power Query (M language)
Implement and maintain Row-Level Security (RLS) and Object-Level Security (OLS)
Optimize Power BI performance through SQL source optimization, efficient T-SQL, database views, and Query Folding
Develop and integrate solutions using Web Services, REST APIs, and HTTP APIs
Elicit and analyse requirements and translate them into technical designs and solution specifications
Design applications using UML and prototype technical solutions
Lead technical teams and contribute to Scrum-based development throughout the complete solution lifecycle
Optimize software for performance, security, and quality and establish software development standards
Produce technical documentation and estimate development effort and timelines
Contribute to testing, quality assurance, change management, configuration, releases, and deployment
Provide second- and third-line technical support and troubleshoot complex application issues
Present technical solutions and recommendations to business and technical stakeholders

Minimum 4 years of relevant IT professional experience, with at least 2 years of project experience relevant to the profile or in a similar position.
Minimum education level: Level 6 (Bachelor's degree or equivalent). An ICT-relevant degree is not mandatory.
At least 1 intermediate-level certification in software development relevant to the domain
Minimum English language proficiency at CEFR B2 level.
Minimum 2 years of experience in a full-stack Power BI support or developer role, including custom solution development, dashboards, data models, and paginated reports.
Expertise in developing enterprise-level software systems and designing data, business logic, and user interface layers.
Strong Microsoft SQL Server application development skills, including T-SQL, database views, Web Services, REST APIs, and HTTP APIs.
Strong knowledge of DAX and Power Query (M language), including data optimization, advanced data analytics, Row-Level Security (RLS), and Object-Level Security (OLS).
Strong Power BI performance tuning skills through Microsoft SQL Server source optimization, efficient T-SQL, database views, and Query Folding.
Experience with UML application design, requirements elicitation, solution specification, technical documentation, testing, quality assurance, deployment, configuration, and release management.
Experience working in Scrum development environments and across the complete solution lifecycle.
Ability to lead technical teams, resolve problems and conflicts, work effectively within a team, and deliver results.
Strong communication and presentation skills, with the ability to explain technical solutions effectively to business stakeholders and other audiences.

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