SVG/PNG Diagram Generation from JSON Data

I need a developer to build a data-driven system that automatically generates accurate SVG/PNG diagrams from structured JSON while matching provided reference designs.

The system should support the following types of diagrams:
- Circular layouts
- Linear layouts
- Directional layouts
- Bar graphs
- Pie charts
- Blood relation trees
- Line graphs
- Venn diagrams

Ideal skills and experience:
- Proficiency in working with SVG/PNG formats
- Strong understanding of JSON data structures
- Experience in diagram and chart generation
- Attention to detail to match reference designs accurately
- Familiarity with frontend technologies for rendering diagrams in a web environment would be a plus

Please provide examples of similar work done.