LLM API PRD Writer

No. of Positions : 50
Location : Freelance / Remote
Experience : 5+ Years
Duration : 2 Months
Salary : 90K to 1.1 Lacs per Month

LLM API PRD Writer (5+ YOE)
A pioneering company at the forefront of AI-driven technologies is seeking a skilled API PRD Writer Specialist with expertise in API documentation, data engineering, and business analysis. The ideal candidate will define and document RESTful APIs for complex systems, ensuring clarity, structure, and adherence to best practices. This role is perfect for professionals who excel at translating business requirements into detailed API specifications while collaborating with engineering and product teams to enhance API usability and efficiency.
Job Responsibilities:
Write clear, structured, and detailed API specifications, ensuring comprehensive endpoint documentation.
Define data schemas, business rules, and validation logic, incorporating cross-resource dependencies.
Establish error handling standards and validation rules to improve API reliability and consistency.
Collaborate with engineering and product teams to refine API specifications and ensure seamless integration.
Develop API documentation using Markdown, OpenAPI/Swagger, JSON Schema, and tools such as Postman or Stoplight.
Job Requirements:
At least 5+ years of experience in backend development, primarily with Node.js.
API Design Expertise – Experience in designing RESTful APIs for complex systems, handling at least 5+ related API resources (e.g., database tables, microservices).
Data Modeling & Schema Design – Strong understanding of relational and non-relational data structures, constraints, and validation rules.
API Documentation Standards – Proficiency with Markdown, OpenAPI/Swagger, JSON Schema, and documentation tools like Postman, Stoplight, or ReadMe.io.
Technical Writing – Ability to write clear, structured, and unambiguous API specifications, covering business rules and edge cases.
HTTP & REST Protocol Knowledge – Deep understanding of HTTP methods, response codes, headers, authentication, and error handling.
API Lifecycle Management – Familiarity with API versioning strategies, deprecation policies, and backward compatibility.
Testing & Validation – Experience with API contract testing, automated validation, and error response consistency.
Domain Knowledge:
Business Logic Translation – Ability to convert complex business requirements into well-structured API specifications.
Cross-Resource Rules – Expertise in defining relationships, dependencies, and constraints across multiple API resources.
Edge Case Handling – Ability to anticipate and document exceptional scenarios and fallback mechanisms.
Validation Logic – Strong understanding of input validation, error messages, and business rule enforcement.