Our client in the US is looking for a Developer to build and maintain their bespoke client-facing reporting applications, turning validated campaign data into fast, reliable and white-label client experiences. Core responsibilities Build and maintain client-specific reporting web applications and reusable dashboard components. Implement filters, deep-linked/parameterized views, maps, campaign selectors and other interactive features. Support embedded/iframe routes, full-page routes and client-branded domains. Implement appropriate access-control, authentication/obfuscation and usage-analytics patterns. Enhance dashboards based on client feedback while preserving consistency across the fleet. Partner with the Data Engineer on data contracts, definitions and release validation. Monitor dashboard health and participate in rollback/recovery planning. Replicate or migrate incumbent dashboard experiences without client-visible discontinuity when required. Requirements Must-have profile 4+ years building production dashboards, analytics applications or data-driven web applications. Strong data-visualization skills plus front-end/web application capability; not limited to static BI report building. Experience integrating applications with APIs/data warehouses and handling production deployments. Comfort with embedded experiences, URL parameters, authentication/access controls and responsive client-facing UX. Ability to work closely with data engineering and non-technical account stakeholders. Preferred experience Experience in ad-tech, media analytics or marketing reporting. Experience with geospatial/map visualizations. Experience with white-label SaaS/reporting applications and multi-client deployments. What success looks like Client dashboards remain available, accurate and easy to use. New client dashboards can be launched quickly from reusable components without feeling generic. Feature changes are released without breaking existing clients. Dashboard numbers and definitions stay aligned with the reporting/data pipeline.