Full-Stack Developer – JSON Schema Engineer (Remote)

About the role

We are seeking a remote Full‑Stack Developer specialized in JSON schema design to support AI training data pipelines. The contractor will create robust, nested schemas and validation logic that underpin next‑generation AI models across finance, healthcare, and engineering domains.

Key responsibilities

• Review complex PDF documents (25‑150 pages) to identify data fields for extraction.
• Design and implement deeply nested JSON schemas from scratch, following best practices for accuracy and scalability.
• Define field types, naming conventions, and hierarchical structures for nested and repeated information.
• Embed granular validation logic, including sum checks and null‑testing, to ensure data integrity.
• Collaborate with API gateway teams to create schema‑driven validation workflows for reliable data processing.

Required profile

• Proven experience designing JSON schemas for complex data structures.
• Strong understanding of API gateway integration and real‑time data validation.
• Familiarity with JWT for secure data exchange in API‑driven environments.
• Experience extracting data from PDF documents and modeling it structurally.
• Ability to work independently in a remote setting with clear documentation.

Required skills

• JSON schema design
• API gateway integration
• JWT (JSON Web Token)
• PDF data extraction
• Data modeling and validation logic