Full-Stack Engineer (JSON Schema Developer)
$40 - $42/hour
pay
Required Skills
JSON
Schema Design
API Gateway
Data Validation
JSON Web Token
About micro1
micro1 connects domain experts to the development of frontier AI models. Real-world expertise is turned into training data, evaluations, and feedback loops that improve how models perform. AI labs and enterprises use micro1 to train models and build reliable AI agents through advanced evaluations and reinforcement learning environments. Experts contribute directly to how AI systems learn, reason, and perform across domains like finance, healthcare, engineering, and more. Our platform identifies and vets top talent through an AI recruiter, enabling high-quality contributions at scale.
Our goal is to enable 1 billion people to do meaningful work by applying their expertise to AI. We’ve raised $40M+ in funding, and our AI recruiter has powered over 1 million AI-led interviews as our global network of experts grows into the human intelligence layer for AI.
Job Description

Job Title: Full-Stack Engineer (JSON Schema Developer)

Job Type: Contract (full-time or part-time)

Location: Remote

Job Summary:

Join our customer's team as a Full-Stack Engineer (JSON Schema Developer) and play a pivotal role in transforming complex documents into structured, actionable data models. You will leverage your expertise in schema design and data validation to build robust extraction schemas from intricate PDFs, ensuring data quality and seamless integration into downstream systems.

Key Responsibilities:

Review and analyze complex PDF documents (ranging from 25 to 150 pages) to identify relevant data fields for extraction.
Design and implement deeply nested JSON schemas from scratch, aligning with data modeling best practices.
Define field types, naming conventions, and hierarchical structures to accurately model nested and repeated information.
Embed granular validation logic, such as sum checks and null-testing, to ensure data integrity.
Collaborate with API Gateway teams to design, document, and enforce API contracts using JSON Schema standards.
Work closely with stakeholders to refine requirements, clarify ambiguities, and deliver clear, actionable schema documentation.
Champion strong written and verbal communication, ensuring clarity in schema explanations and implementation guidance.

Required Skills and Qualifications:

Proven experience designing complex JSON schemas, including objects within arrays and multilevel nesting.
Strong proficiency in JSON, schema design, and data validation methodologies.
Demonstrated ability to interpret raw documents and architect robust information models from scratch.
Deep understanding of required vs. optional fields, data types, field descriptions, and validation rules.
Hands-on experience with API Gateway management and defining secure API contracts.
Practical knowledge of JSON Web Token (JWT) standards and secure data handling.
Exceptional written and verbal communication skills, with attention to detail in documentation and collaboration.

Preferred Qualifications:

Background in database design, data modeling, or backend engineering.
Experience integrating JSON extraction schemas into automated data pipelines.
Familiarity with regulatory or compliance requirements in data extraction and validation.
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