Full-Stack Developer – JSON Schema Specialist (Remote)

About the role

We are seeking a contract Full‑Stack Developer to design and implement robust JSON schemas that power next‑generation AI training data. The position is fully remote and focuses on translating complex PDF documents into accurate, nested data structures.

Key responsibilities

• Analyse PDF files (25‑150 pages) to extract relevant data fields.
• Design and build deeply nested JSON schemas from scratch, following best‑practice data‑modeling standards.
• Define field types, naming conventions, and hierarchical structures for scalable data representation.
• Embed granular validation logic, such as sum checks and null‑testing, to ensure data integrity.
• Collaborate with API‑gateway teams to create schema‑driven validation workflows for reliable real‑time processing.

Required profile

• Proven experience in JSON schema design and validation for complex data structures.
• Strong understanding of API‑gateway integration and real‑time data validation.
• Familiarity with JWT for secure data exchange.
• Experience extracting structured data from PDF documents.
• Ability to work independently in a remote environment with clear documentation.

Required skills

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

What we offer

• Contract rate of $40‑$42 per hour
• Fully remote work arrangement
• Opportunity to influence AI model performance across finance, healthcare, and engineering domains