Technical Writer - Ecosystem Platform Enablement Department (EPED)

Job Description:

Business Overview

The Technology Platforms Division (TPD) drives the growth of the Rakuten Ecosystem by delivering innovative, high-quality technology platforms characterized by integrated control and strategic partnerships. Within TPD, the Ecosystem Platform Supervisory Department (EPSD) develops scalable and reliable platforms that support the entire Rakuten Ecosystem globally, fostering a culture of ownership and data-driven decision-making.

Department Overview

The Ecosystem Platform Enablement Department (EPED) is responsible for optimizing and standardizing the delivery of our ecosystem platform services across the organization. We focus on driving strategic and collaborative innovation to maximize value for both clients and internal stakeholders.

Position:

Position Details

The Technical Writer will play a critical role in bridging the gap between product teams and clients by creating clear, concise, and high-quality documentation and communication materials.

This position involves managing documentation initiatives, defining content structures, and collaborating with cross-functional teams.

Beyond technical documentation, this role acts as a Technical Product Storyteller, translating complex technical capabilities into compelling sales pitches, product briefings, and value-proposition materials for internal stakeholders and external clients.

The role includes establishing documentation standards, supporting product teams in creating consistent content, and improving communication processes across the organization.

Key Responsibilities

• Documentation: Develop, write, and maintain technical documents, including user manuals, quick start guides, product specifications, and developer onboarding materials.
• Sales Enablement: Draft and refine high-impact sales materials, such as product one-pagers, value-proposition decks, and technical capability summaries that highlight competitive advantages.
• Strategic Communication: Translate complex technical features into business-value narratives tailored for non-technical stakeholders, management, and potential clients.
• Governance: Define and implement documentation structures, templates, and style guides to ensure consistency and clarity.
• Project Management: Manage technical writing initiatives, including planning, scheduling, and coordinating documentation projects.
• Collaboration: Act as a liaison between product teams, marketing/sales, and clients to ensure documentation and pitches meet user needs and support customer success.
• Mentorship: Provide guidance and support to product teams on best practices for creating and maintaining technical documentation.
• Continuous Improvement: Continuously improve documentation processes and AI-assisted workflows to enhance efficiency and quality.

Mandatory Qualifications:

• Education: Bachelor's degree in computer science, Engineering, Technical Communications, or a related field.
• Experience: More than 3 years of experience in technical writing, specifically for SaaS, API-driven platforms, or complex enterprise ecosystems.
• Versatility: Proven ability to create both deep-dive technical documentation (specs, manuals) and persuasive, client-facing sales materials (pitches, briefs).
• Language Skills: Full professional proficiency in both English and Japanese (Business level or higher).
• AI Proficiency: Demonstrated experience using AI-assisted tools for content generation, editing, and documentation maintenance.
• Technical Aptitude: Ability to quickly digest complex system architectures and translate them into accessible content for diverse audiences.
• Agile Mindset: Ability to work in an Agile environment, responding to rapid feedback and changing requirements.
• Soft Skills: Strong project management and stakeholder management skills; ability to organize activities in an orderly manner and meet deadlines.

Desired Qualifications:

• Documentation as Code: Experience with modern documentation workflows (e.g., Markdown, Git/GitHub, Hugo, Docusaurus).
• Operational Background: Experience in product operations, technical support, or developer relations (DevRel).
• Tooling: Proficiency with Jira, Confluence, and process mapping tools.
• Visual Storytelling: Experience creating professional presentations (PowerPoint/Keynote) or visual assets (Figma, Lucidchart, Draw.io) to communicate technical value.
• Metrics-Driven: Experience measuring the impact of documentation and sales collateral using KPIs (e.g., ticket reduction, engagement analytics).
• Experience: Previous experience in product management, project management, or engineering roles.

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