Senior Technical Writer - Developer Portal & API Docs

10Pearls, LLC; Washington (District of Columbia); On-site; USD 95,000 - 130,000; Full time

Job summary

10Pearls, LLC is seeking a Senior Technical Writer to own the developer documentation experience for a growing developer platform. This role focuses on public REST APIs, embedded integrations, webhooks, SDKs, and AI-enabled developer experiences.

You will collaborate with engineers and product managers, build documentation strategy and information architecture, and own quality standards for a world-class developer experience.

Qualifications

• 7+ years of experience in technical writing, with at least 4 years documenting public REST APIs for external developers.
• Proven experience owning and improving a developer portal or technical documentation platform.
• Strong understanding of APIs and the ability to independently read code and make API calls.
• Hands-on experience with tools such as cURL, Postman, JSON, and at least one programming language such as JavaScript or Python.
• Experience working with OpenAPI specifications.
• Experience with documentation platforms such as ReadMe, Mintlify, Docusaurus, or similar tools.
• Experience with Git-based documentation workflows.
• Strong collaboration skills with the ability to work effectively with engineers, product managers, and other technical stakeholders.
• Ability to work independently, ask the right questions, and challenge unclear or incomplete requirements.
• Strong prioritization and organizational skills, with the ability to manage multiple documentation initiatives.

Responsibilities

• Own the information architecture, content strategy, and quality standards for the developer portal, including guides, API references, recipes, and release notes.
• Audit and improve existing documentation by consolidating duplicate content, identifying gaps, retiring outdated information, and simplifying the path to a developer's first API call.
• Write clear and comprehensive integration guides for complex fintech workflows, including AP/AR payments and payment states; Vendor onboarding and BILL Network; KYC/KYB, compliance, and verification; Webhooks; Partner and embedded integrations.
• Collaborate with Product and Engineering teams to document new product launches, including OAuth, BILL Elements, MCP, and AI-related developer experiences.
• Create documentation based on PRDs, design documents, Figma files, API specifications, and other technical resources.
• Keep OpenAPI specifications, Postman collections, code samples, and documentation aligned and up to date.
• Optimize documentation for AI-assisted development, including structured content, Markdown output, llms.txt, and content that can be reliably consumed by AI assistants and agents.
• Build and maintain a partner-facing FAQ and self-service documentation to reduce repetitive support requests.
• Establish and maintain style guides, templates, documentation standards, and docs-as-code workflows.
• Work independently with engineers and product managers to gather technical information, identify ambiguities, and ensure documentation accurately reflects the product.
• Prioritize documentation initiatives based on developer needs, product priorities, and business impact.

Skills

Technical writing

API documentation

Developer portal ownership

APIs

Code reading

Collaboration

Independent work

Prioritization

Tools

cURL

Postman

JSON

JavaScript

Python

OpenAPI

ReadMe

Mintlify

Docusaurus

Git

Git-based workflows

Job description

10Pearls, LLC is seeking a Senior Technical Writer to own the developer documentation experience for a growing developer platform. This role focuses on public REST APIs, embedded integrations, webhooks, SDKs, and AI-enabled developer experiences.

You will collaborate with engineers and product managers, build documentation strategy and information architecture, and own quality standards for a world-class developer experience.