Crossing Hurdles logo

Full-Stack Engineer (JSON Schema Developer) | $42/hr Remote

Crossing Hurdles
Department:iOS Developer
Type:REMOTE
Region:UK
Location:United Kingdom
Experience:Mid-Senior level
Salary:$83,200 - $87,360
Skills:
JSONJSON SCHEMAAPI GATEWAYDATA VALIDATIONPDF PARSING
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Job Description

Posted on: May 21, 2026

Position: Full-Stack Engineer (JSON Schema Developer)

Type: Contract

Compensation: $40 - $42/hour

Location: Remote

Commitment: 10-40 hrs/week

Role Responsibilities

  • Review and analyze complex PDF documents to identify relevant data fields for extraction.
  • Design and implement deeply nested JSON schemas from scratch, adhering to data modeling best practices.
  • Define field types, naming conventions, and hierarchical structures to accurately model nested and repeated information.
  • Embed granular validation logic to ensure data integrity, including sum checks and null-testing.
  • Collaborate with API Gateway teams to design, document, and enforce API contracts using JSON Schema standards.
  • Work closely with stakeholders to refine requirements and deliver clear, actionable schema documentation.

Requirements

  • Have proven experience designing complex JSON schemas, including objects within arrays and multilevel nesting.
  • Demonstrate strong proficiency in JSON, schema design, and data validation methodologies.
  • Have the ability to interpret raw documents and architect robust information models from scratch.
  • Possess a deep understanding of required vs. optional fields, data types, field descriptions, and validation rules.
  • Have hands-on experience with API Gateway management and defining secure API contracts.

Application Process

  • Easy Apply on LinkedIn
  • Check email for next steps
  • Participate in resume evaluation & interview stage
Originally posted on LinkedIn

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