Senior Technical Writer/Documentation Engineer - AI

About hyperexponential (hx)

At hyperexponential, we’re building the AI-powered platform that enables the world’s most critical decisions in a $7 trillion industry, which risks to take, and how to price them. These are the decisions that shape real-world outcomes: whether rockets successfully launch into space, autonomous vehicles make it to market, or communities recover after major storms.

Until now, insurance has been making billion-dollar decisions using outdated tools. We’re changing that. Our platform brings together data, AI, and human expertise to give insurers the fastest path from submission to decision - helping them move faster, act smarter, and take on more risk with confidence.

Backed by a16z, Highland Europe, and Battery Ventures, we’re scaling globally - already trusted by nearly 50 of the world’s largest insurers, with zero churn and billions in premiums flowing through hx.

What began as a single product in one market has rapidly evolved into a multi-product, multi-territory platform powering every stage of pricing and underwriting. AI is at the core of what we do - from building the world’s first domain-specific AI peer programmer for insurance (think GitHub Copilot with a PhD in actuarial science) to shaping agentic workflows that reinvent how this industry operates.

What makes hx different is the people who build it. Here, impact isn’t tied to title or tenure; it’s defined by the challenges you take on and the discipline you bring. Surrounded by peers who stretch you, you’ll do the best, hardest work of your life in a company engineered to endure.

If that sounds like you, join us in building what comes next.

About Technical Writing at hx

At hx, world-class documentation is a product in its own right: it drives adoption, enables customer self-service, and reduces friction for internal teams. As our products scale and our AI agents depend on well-structured knowledge, documentation becomes a critical part of how we deliver clarity and confidence to users.

This role will sit at the intersection of engineering, product, and customer teams, creating and governing documentation that is accessible, structured, and AI-ready. You’ll be building this function from the ground up – our first dedicated technical writer – so you’ll shape both the standards and the workflows that support adoption across hx.

You’ll work hands-on to design documentation systems, implement AI-assisted authoring, and enforce consistency across diverse content sources. With the freedom to experiment and the backing to scale your ideas, you’ll create lasting impact for both internal teams and global clients.

What you’ll be doing

• Designing and delivering structured, AI-powered documentation that makes hx products easy to understand, adopt, and scale.

• Implementing documentation standards, workflows, and governance across teams to ensure consistency and discoverability.

• Partnering with engineering, product, and customer teams to capture knowledge and translate it into accessible, high-impact content.

• Building content pipelines and structures that support AI-powered search, question-answering, and automated validation.

• Introducing and refining automation and feedback mechanisms to continuously improve documentation quality.

• Driving adoption of documentation practices that reduce support needs and accelerate onboarding for users.

What you’ll need to have done

• Built technical documentation in a fast-paced software environment that improved adoption or reduced support queries.

• Applied AI/automation (e.g. LLMs, workflow tools like Zapier/n8n, Grammarly, Claude, or similar) to streamline content workflows or improve quality.

• Designed or restructured documentation systems to be scalable, maintainable, and discoverable.

• Partnered with engineers, product managers, or customer teams to capture technical detail and translate it for diverse audiences.

• Established or championed standards for tone, style, and structure, ensuring consistency across multiple contributors.

• Owned end-to-end delivery of documentation projects, from requirements gathering through to validation and rollout.

You’re unlikely to thrive here if

• You prefer static documentation over evolving, AI-driven workflows, showing proactiveness and bringing meaningful change.

• You shy away from experimenting with AI tools and workflows, and reluctant to learn new approaches.

• You are uncomfortable taking ownership of standards, quality, and consistency in your work.

If reading our Culture Document leaves you feeling neutral rather than energised, hx may not be the place where you’ll do your best work. We’re building something that asks for commitment and conviction, and we want you to feel excited by the opportunity to grow with us.

Compensation

At hx, we’re committed to salary transparency. You’ll always have clarity on pay early in the process - our Talent Partner will share details with you during initial conversations - and we’re working towards publishing salary information for all roles globally.

Because we’re building at the intersection of technology/SaaS and insurance, our roles don’t always map neatly onto traditional benchmarks. Our approach is to design compensation that’s competitive in the market, fair across teams, and aligned with the impact our people make.

Equity: We offer equity across all roles at hx, making it a significant component of total compensation. Your talent partner will be able to share more details about this.

Benefits

• £5,000 training and conference budget for individual and group development.

• 25 days of holiday plus 8 bank holidays (33 days total).

• Company pension scheme via Penfold.

• Mental health support and therapy via Spectrum.life.

• Individual wellbeing allowance via Juno.

• Private healthcare insurance through AXA.

• Income protection and Life Insurance.

• Cycle to Work Scheme

Additional perks

• Top-spec equipment (laptop, screens, adjustable desks, etc.).

• Regular remote and in-person hackathons, lunch and learns, socials, and game nights.

• Team breakfasts and lunches, snacks, drinks fridge, and a fun office at The Ministry.

• Exceptional opportunities for personal development and growth as we build something remarkable together.

Interview Process

• Initial call with Talent team (30 minutes)

• Manager Interview (60 minutes)

• Skills Assessment - Home-based task followed by interview (60 minutes)

• Values Interview (60 minutes)

• We Offer

Our commitment to Diversity

hxer's are at the centre of everything we build. We know that progress depends on diverse perspectives, and we are committed to creating an environment where everyone can thrive, grow, and make an impact. We recognise there is always more to do, and we take responsibility for shaping a workplace that is not only diverse but genuinely inclusive.

Diversity is not just the right thing to do, it is key to solving the complex challenges we choose to take on. By welcoming people from all backgrounds and experiences, we strengthen our ability to question assumptions, push boundaries, and design solutions that endure.

If you’re energised by complexity and motivated to grow, we encourage you to apply and join our global team.

Next steps

If this opportunity resonates with you, we encourage you to apply or share it with your connections! Our dedicated talent team reviews all applications, and we promise to provide feedback regardless of the outcome.

For more information about applying and to view other opportunities, you can visit our careers page.

Please note that background checks will be conducted as part of the hiring process to ensure compliance with our governance policies. We handle all background checks sensitively and in full compliance with relevant regulations. All applicant data will be processed in accordance with data protection regulations and our privacy policy.