Data Visualization Consultant (HTML & Vega-Lite) - DVC 25-33692

Data Visualization Consultant (HTML & Vega-Lite) - DVC 25-33692

Posted 2 days ago by 1765260071

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Negotiable
Outside
Remote
USA
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Data Integration Dataset Data Visualisation Market Trend Server-Side Templates User Acceptance Testing (UAT) Workflows

Summary: The Data Visualization Consultant will enhance an existing visualization prototype using Vega-Lite and HTML, focusing on visual quality, accessibility, data integration, and architectural clarity to support QA and UAT workflows. This role requires hands-on experience with modern data visualization practices and a strong understanding of accessibility standards. The consultant will work remotely for a duration of 6 months. Key responsibilities include improving visualizations, integrating datasets, developing HTML prototypes, and providing architectural consultation.

Key Responsibilities:

  • Improve existing Vega-Lite charts with refined titles, axis labels, legends, and consistent styling.
  • Implement accessibility features, including alt text, linked data tables, and keyboard-accessible design.
  • Refine trend lines, small multiples, and evaluate additional visualization formats such as proportional bar charts.
  • Create reusable style templates and document all visualization properties and standards.
  • Integrate full multi-year Community Health Survey datasets into the prototype.
  • Ensure visualizations perform efficiently while maintaining accuracy and consistency across outputs.
  • Build a simple, structured HTML page to host and organize all visualizations for QA and UAT review.
  • Evaluate rendering options (server-side SVG vs. client-side SVG/Canvas) for optimal performance and accessibility.
  • Develop a high-level architectural diagram with recommended rendering approaches.

Key Skills:

  • Strong, hands-on experience with Vega-Lite, HTML, and modern data-visualization practices.
  • Knowledge of WCAG accessibility standards and best practices for accessible data displays.
  • Experience working with structured, multi-year datasets and integrating them into visualization workflows.
  • Ability to clearly document styles, components, and architectural considerations.
  • Strong communication and consulting skills.
  • Experience with public-health datasets or similar survey-based data.
  • Familiarity with QA/UAT workflows and browser-based visualization integration.

Salary (Rate): undetermined

City: undetermined

Country: USA

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Job Title: Data Visualization Consultant (HTML & Vega-Lite)
Location: Remote
Duration: 6 Months

Job Description: The Data Visualization Consultant will enhance and expand an existing visualization prototype using Vega-Lite and HTML. This role focuses on improving visual quality, accessibility, data integration, and architectural clarity to support QA and UAT workflows.

Key Responsibilities:

1. Visualization Enhancement

  • Improve existing Vega-Lite charts with refined titles, axis labels, legends, and consistent styling.

  • Implement accessibility features, including alt text, linked data tables, and keyboard-accessible design.

  • Refine trend lines, small multiples, and evaluate additional visualization formats such as proportional bar charts.

  • Create reusable style templates and document all visualization properties and standards.

2. Dataset Integration

  • Integrate full multi-year Community Health Survey datasets into the prototype.

  • Ensure visualizations perform efficiently while maintaining accuracy and consistency across outputs.

3. HTML Prototype Development

  • Build a simple, structured HTML page to host and organize all visualizations for QA and UAT review.

4. Architecture Consultation

  • Evaluate rendering options (server-side SVG vs. client-side SVG/Canvas) for optimal performance and accessibility.

  • Develop a high-level architectural diagram with recommended rendering approaches.

Required Skills:

  • Strong, hands-on experience with Vega-Lite, HTML, and modern data-visualization practices.

  • Knowledge of WCAG accessibility standards and best practices for accessible data displays.

  • Experience working with structured, multi-year datasets and integrating them into visualization workflows.

  • Ability to clearly document styles, components, and architectural considerations.

  • Strong communication and consulting skills.

Preferred Skills:

  • Experience with public-health datasets or similar survey-based data.

  • Familiarity with QA/UAT workflows and browser-based visualization integration.

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