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# Full-Stack Engineer (JSON Schema Developer)

- **Company:** Human Union Data, Inc.
- **Location:** United States (Remote available)
- **Salary:** $83,200.0 - $87,360.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Data Validation, JSON, JSON Web Token, Api Gateway
- **Published:** July 29, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=8542f5b6c5edd875

## About the Role

* Prior evaluation, annotation, or human-rater experience on full stack engineer evaluation or adjacent content for Full-Stack Engineer (JSON Schema Developer) work.
 * Comfort applying multi-page rubrics consistently across long batches.
 * Clear written reasoning that names the issue and the rubric clause being applied.
 * Strong attention to detail and the ability to flag when a prompt itself is the problem.
 * Reliable async availability for at least 10 hours per week., * Background in linguistics, content moderation, or trust & safety review.
 * Experience with inter-rater agreement metrics and calibration cycles.
 * Domain expertise that lets you spot subject-matter errors automated checks miss., * Model output evaluation
 * Rubric-based annotation
 * Severity tagging
 * Inter-rater calibration
 * Full Stack Engineer evaluation
 * API Gateway
 * Data Validation
 * JSON
 * JSON Web Token
 * Schema Design

Work model

Remote - US-eligible. Remote · Independent specialist contractor. Employment type: CONTRACTOR. Applicants must be authorized to work from US.

## Description

Full-Stack Engineer (JSON Schema Developer) is a remote evaluation track for reviewing full stack engineer evaluation prompts and responses against AuraOne's quality rubric. Reviewers compare paired outputs, label edge cases, and write the kind of structured feedback the modeling team can use to retrain.

Why this role matters

AI data reviewers help turn full stack engineer evaluation outputs into auditable labels, rationales, and regression cases for AuraOne Human Data., * Evaluate full stack engineer evaluation model outputs against a versioned rubric and assign severity tags for Full-Stack Engineer (JSON Schema Developer) assignments.

 * Compare paired responses and pick the stronger answer with a written rationale.
 * Label hallucinations, instruction-following failures, and unsafe content with structured tags.
 * Capture ambiguous prompts and route them back to the program team for rubric updates.
 * Maintain reviewer-quality scores by calibrating against gold-standard examples each week.
 * Document recurring failure modes so the modeling team can target them in the next training run., * Compare two full stack engineer evaluation model responses to the same prompt and pick the stronger one with rationale.
 * Tag an unsafe response with the correct policy category and severity.
 * Audit a 50-row batch for rubric consistency and report drift to the program lead.
 * Propose a rubric clarification after spotting a recurring failure mode.


## Related Videos

- [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure)
- [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json)
- [20 billion requests a week: Upgrading Twilio's API gateway at scale](https://www.wearedevelopers.com/videos/100234-20-billion-requests-a-week-upgrading-twilio-s-api-gateway-at-scale)
- [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library)
- [Introducing JSON Structure - A Better Schema](https://www.wearedevelopers.com/videos/1534-introducing-json-structure-a-better-schema)
- [Architecting API Security](https://www.wearedevelopers.com/videos/377-architecting-api-security)

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