Node JS Backend developer/API Design Expert

Exp - 5+yrs

Location - Remote

Shift timings - 7:30 pm to 12:30am mandatory(rest 3hours flexible)

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.

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.

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.