Job Description

Engagement:

Data Platform & Reporting Transformation

Duration:

11 weeks | estimated kickoff date: 19 January 2026

Engagement:

40 hour work week, flexible hours

Timezone:

South Africa, client is US based (CST), flexibility may be required for occasional Zoom calls outside of SA typical office hours (with prior notice).

Location:

Remote



Role Overview



WNDYR is seeking an experienced BI Developer to design, build, and deploy Power BI reporting solutions for a maritime towing company's new Azure-based data platform. You will translate business requirements into interactive dashboards and reports that provide executives with actionable insights into customer performance, operations, vessel activity, and financial metrics.



Responsibilities



Semantic Model Development


Design and implement Power BI semantic model connecting to Azure PostgreSQL Build relationships across star schema (fact and dimension tables) Implement time intelligence, hierarchies, and calculated columns Optimize model for query performance and efficient refresh

DAX Development


Author DAX measures for KPIs including revenue, job counts, YoY comparisons, and discount analysis Create dynamic calculations that respond to user filter selections Implement complex business logic for customer matching confidence scores Document measure definitions and calculation methodology

Report Development


Build 5 interactive Power BI reports: Customer, Tug Jobs, Vessels, Discount Analysis, and Billing Assistance Design intuitive layouts optimized for web, tablet, and mobile consumption Implement drill-down navigation, cross-filtering, and conditional formatting Create visually compelling dashboards aligned with client branding

Collaboration & Delivery


Partner with Experience Strategist on report wireframes and UX Work with Data Engineer to validate data quality and troubleshoot pipeline issues Participate in UAT, incorporating user feedback into report refinements Support Change Lead with training materials and user documentation




Required Skills & Experience



Power BI Expertise (5+ years)


Semantic model design and optimization Advanced DAX proficiency (time intelligence, iterators, context transition) Report and dashboard development Power BI Service administration and workspace management

Data Modeling


Star schema and dimensional modeling concepts Experience connecting Power BI to relational databases (PostgreSQL, SQL Server, or similar) Understanding of data warehousing principles

Technical Skills


SQL proficiency for data validation and troubleshooting Experience with DirectQuery and Import modes Familiarity with row-level security (RLS) implementation Mobile layout optimization

Soft Skills


Ability to translate business requirements into technical solutions Clear communication with non-technical stakeholders Attention to detail and commitment to quality Self-directed with ability to meet deadlines in a consulting environment




Preferred Qualifications


Experience in maritime, logistics, or transportation industries Familiarity with Azure ecosystem (Azure PostgreSQL, Azure Functions, Blob Storage) Power BI certification (PL-300 or equivalent) Experience with dbt or other analytics engineering tools Prior consulting or client-facing delivery experience




Engagement Context



You will join a small, collaborative team delivering a greenfield data platform for a 14-year Sage 300 environment with no existing BI capabilities. The client has 12 executive users who need web and mobile access to operational insights. This is a high-visibility engagement with potential for Phase 2 expansion into billing automation.



Team Structure




Engagement Lead - Client relationship, project coordination



Solution Architect - Azure architecture, data model design



Data Engineer - ETL development, pipeline implementation

BI Developer -

Power BI semantic model and reports (this role)

Experience Strategist - Report wireframes, UX review



Change Lead - Training, adoption support