Senior Technical Writer

Marqeta Marqeta · Fintech · Canada · Remote · Customer and Developer Experience Product

Senior Technical Writer for a fintech company, responsible for creating and scaling documentation for APIs, SDKs, and platform experiences. The role involves improving documentation structure, generation, and maintenance using tooling, automation, and AI, and ensuring clarity and usability. It requires partnership with Product, Engineering, and Design.

What you'd actually do

  1. Create clear API and SDK documentation that enables fast, successful integration.
  2. Ensure accuracy with real request and response examples grounded in system behavior.
  3. Partner with Engineering and Product to validate APIs and maintain code-to-doc alignment.
  4. Improve discoverability and self-serve onboarding by treating documentation as a product.
  5. Use docs-as-code and AI-driven tooling to improve accuracy and reduce drift.

Skills

Required

  • 5+ years writing for developer audiences, including APIs and SDKs
  • Strong understanding of REST APIs, JSON, and integration workflows
  • Experience with OpenAPI or Swagger in API-first environments
  • Proficient in docs-as-code tools such as GitHub, Markdown, Jira, and Postman
  • Able to read code, test APIs, and ensure code-to-doc alignment
  • Proven ability to improve documentation clarity, structure, and usability
  • Experience using AI or automation to scale documentation workflows
  • Experience in fintech, banking, or payments with knowledge of integrations
  • Strong understanding of developer experience and information architecture
  • Strong communicator who can operate independently

Nice to have

  • Experience with SDK documentation across web or mobile.
  • Familiarity with developer onboarding flows and sandbox environments.
  • Background in engineering, product, or developer relations.
  • Experience in measuring and improving documentation effectiveness.
  • Familiarity with modern documentation platforms such as Mintlify

What the JD emphasized

  • AI or automation to scale documentation workflows
  • fintech, banking, or payments with knowledge of integrations