Technical Writer

J.P. Morgan; Greater London; On-site; GBP 45,000 - 60,000; Full time

Job summary

A global financial services firm in Greater London seeks a skilled Technical Writer to develop comprehensive documentation for its financial products. The role involves collaborating with product managers and engineering teams to create engaging content aimed at developers. Successful candidates will possess experience in API documentation and modern documentation tools, along with a customer advocacy mindset. This position requires a self-directed individual who can manage multiple priorities while maintaining high-quality standards.

Qualifications

• Experience creating technical documentation for developer-focused products.
• Proficiency with modern documentation technologies, including Markdown and OpenAPI.
• Strong ability to translate complex concepts into clear documentation.

Responsibilities

• Design and develop comprehensive product documentation.
• Collaborate with teams to extract technical knowledge.
• Manage and implement documentation toolchains.

Skills

Technical documentation

API documentation

Markdown

OpenAPI/Swagger

Version control

Job description

Job responsibilities

Design and develop comprehensive product documentation, including conceptual overviews, step‑by‑step guides, API reference materials, and interactive tutorials for developer audiences.

Collaborate cross‑functionally with Product Managers and Engineering teams to extract technical knowledge and build deep expertise in our financial services product ecosystem.

Translate complex technical information into simple, accurate, engaging content that adapts to various audiences.

Manage, or show proficiency to learn, API design principles and a docs‑as‑code workflow to publish documentation on our customer‑facing portals.

Define and evolve documentation standards, style guides, and quality control processes that ensure consistency across our external‑facing technical content.

Evaluate, implement, and optimise documentation toolchains that streamline content creation, testing, and publishing workflows.

Champion user‑centered documentation by systematically gathering, analysing, and implementing customer feedback to continuously improve content effectiveness.

Develop content in alternative media forms for maximum usability, with consistent tone of voice across all documentation.

Drive innovation in technical content strategy by researching and implementing emerging documentation approaches, formats, and delivery methods.

Required qualifications, capabilities and skills

B2B Technical Writer with experience creating technical documentation for developer‑focused products, with emphasis on API documentation.

Proficiency with modern documentation technologies and tools including Markdown, OpenAPI/Swagger, static site generators, docs‑as‑code content authoring, and git‑based version control.

Ability to quickly understand complex technical concepts and translate them into clear, precise documentation with attention to accuracy, consistency, and readability.

Proven ability to collaborate effectively with engineering and product teams to gather technical information, define content structures and create visuals.

Strong customer advocacy mindset with the ability to anticipate developer needs, identify content gaps, and champion documentation improvements that directly address user pain points.

Self‑directed work ethic with demonstrated ability to take initiative, ask insightful questions, and drive projects forward even when requirements or technical details are initially unclear.

Adaptability and resilience in fast‑moving environments, with the ability to manage multiple documentation priorities while maintaining high‑quality standards.

Preferred qualifications, capabilities and skills

Ideally you are proficient, or prepared to learn about, API structure and design principles.

Previous experience documenting APIs, products or services in the Financial Services or Fintech sector.

Experience in both startup environments and established organisations.

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