Shiny Application Developer

We are seeking an experienced Shiny Application Developer who can translate design concepts into interactive, production-ready Shiny applications. The ideal candidate combines strong R programming skills with experience in UI customization and advanced Shiny patterns, including state management, modular design, and extending Shiny with JavaScript when necessary.

Responsibilities

• Build high-quality Shiny applications directly from Figma wireframes and design specifications.
• Implement custom UI components within Shiny using CSS and light JavaScript for R (e.g., custom input/output bindings, small DOM manipulations, htmlwidgets).
• Create or extend htmlwidgets to support bespoke visualizations and interactivity.
• Design and manage application state using R6 classes and modular Shiny architecture.
• Develop applications with complex interactive behaviors, such as:
• Cross-component reactivity and communication
• Persistent state management
• Dynamic filtering, drill-downs, and user-driven exploration
• Ensure application performance, testing, and reliability in production environments.
• Collaborate closely with designers, analysts, and product stakeholders to deliver polished applications.

Qualifications

• Proven experience developing advanced Shiny applications from wireframes or design specs.
• Strong knowledge of R, Shiny, and reactive programming.
• Proficiency with custom HTML and CSS styling in Shiny to deliver applications that match Figma/UX specifications.
• Familiarity with bslib and Bootstrap 5, including creating custom modals, waiters, and tooltips.
• Practical experience with JavaScript in the Shiny context:
• Writing or modifying custom input/output bindings
• Enhancing reactivity via shinyjs or htmlwidgets
• Extending Shiny with lightweight JS code where necessary
• Experience using R6 classes for state management and encapsulating business logic.
• Familiarity with advanced Shiny practices, including modular design, async operations, and bookmarking/session state.
• Knowledge of testing frameworks (e.g., shinytest2, testthat)
• Git for version control
• Bonus: Experience with performance tuning (caching, async), deployment (Shiny Server / Posit Connect / Docker), or integration with APIs and databases.