Technical Writer – API Documentation
About Hyperlayer
Hyperlayer is a B2B product company building a platform to revolutionise the world of payments. We transform digital wallets into smart wallets that change the way people and businesses spend money. Our wallets let consumers withdraw money from multiple accounts with a single tap for a specific purpose, and enable targeted brand spending, rewards, group savings, sharing and spending—all in one platform. We work with large retailers and financial institutions to deliver innovative solutions that improve financial well‑being for consumers, families and groups.
About the Role
We are expanding our Developer Experience & Documentation team and are looking for a skilled and experienced API Technical Writer. This hands‑on role thrives at the intersection of Product, Technology and customer needs, championing best‑in‑class documentation strategies for our rapidly scaling platform. Preferred experience: 3‑5 years in a fast‑paced software, fintech or API‑focused environment.
Key Responsibilities
* Design, develop and maintain comprehensive documentation for products, APIs and platform integrations, including conceptual overviews, step‑by‑step guides, API reference materials and troubleshooting resources.
* Collaborate proactively with Engineering, Product Management, Partnerships and Delivery teams to understand technical solutions, integration patterns and customer requirements.
* Interview subject‑matter experts to extract knowledge and build deep expertise in our financial services and orchestration ecosystem.
* Translate complex banking and API concepts into clear, concise and engaging documentation tailored to diverse technical audiences, from developers and platform partners to business analysts.
* Define, evolve and advocate for documentation standards, style guides, templates and best practices, establishing a scalable documentation “guild” across the organization.
* Evaluate, implement and optimise docs‑as‑code toolchains (Markdown, OpenAPI/Swagger, YAML, version control, static site generators) that support continuous delivery and content quality.
* Champion a user‑centred approach by gathering and analysing user feedback, anticipating developer pain points and iteratively improving content.
* Develop and deliver multimedia content (tutorials, visuals, interactive content and videos) to support comprehensive onboarding and product adoption.
* Support product launches with high‑quality technical content, including release notes and integration guides.
* Drive innovation in technical communication, experimenting with emerging documentation formats and delivery methods.
Qualifications
Required
* 3‑5+ years of experience as a technical writer in fast‑paced software, fintech or API‑focused environment.
* Demonstrated expertise in creating developer documentation, especially for APIs and platform products.
* Hands‑on experience with docs‑as‑code workflows (Markdown, YAML, OpenAPI/Swagger, Git, content automation).
* Strong technical acumen—able to quickly understand and communicate complex software and integration concepts with attention to clarity, accuracy and usability.
* Proven ability to work cross‑functionally, collaborating with engineering, product and partner teams.
* Deep empathy for developer/end‑user experience and a passion for championing documentation improvements.
* Exceptional written and visual communication skills, with keen attention to detail and consistency.
* Adaptability and initiative in managing multiple priorities and projects in a fast‑moving environment.
Preferred
* Experience in B2B fintech, financial services, SaaS or platform‑based solutions.
* Exposure to enterprise integration, API onboarding and developer advocacy.
* Ability to create tutorials and multimedia instructional content.
* Experience in both startup and large‑scale organisational settings.
Benefits
* Performance‑based employee bonus scheme.
* 25 days annual leave plus bank holidays, a day off on your birthday and an additional day per year of tenure (up to 30).
* Critical illness and life insurance cover.
* AXA PPP Health Insurance, including gym offers.
* Cycle‑to‑work scheme.
* Referral bonus scheme.
* Workplace nursery scheme.
How to Apply
Please click the ‘Apply’ button. You will be asked to provide an updated CV and answer a few questions. For further information about this vacancy, you can contact us at people@hyperlayer.com.
We will not be offering UK work visa sponsorship for these roles. Candidates will need an existing non‑sponsored right to work in the UK.
Our Commitment to Equity, Diversity and Inclusion
Hyperlayer’s mission is to make a positive impact on people’s lives, making it easier for everyone to manage their money. Our commitment to equity, diversity and inclusion is a key part of this; it helps us better serve our customers, employees and business partners from every background. We are constantly learning and striving to do better, and we expect all staff to actively take part in this process.
Data Privacy
As part of our recruitment process, Hyperlayer Limited collects and processes personal data relating to job applicants. We are committed to being transparent about how we collect and use this data and to meeting our data protection obligations. To read more click here.
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