hyperexponential

Full-stack Engineer

• Architect and engineer AI-driven products from scratch, including specialised coding copilots within a proprietary IDE
• Design and implement LLM-based solutions and a data ingestion engine for unstructured insurance documents
• Own scoped features end-to-end from prototype to production, experiment and scale
• Lead and run high-leverage experiments and ship changes into production quickly
• Collaborate across hx teams to shape roadmap and contribute to architectural decisions
• Onboard quickly, ship meaningful contributions within first month, take ownership of features by month two, and shape roadmap by month three
• Work in a small, startup-like AI team applying state-of-the-art models to solve insurance problems

Staff Engineer, AI Products

Marketing

• Position hx so our content stands out in a sea of AI noise - driving awareness, consideration and preference.
• Make our website the best in category. Not a brochure. A source of high quality content that our target audiences choose to spend time with.
• Lead a cross-functional creative team at hx that blends human expertise with AI, leveraging AI for speed and prototyping, while ensuring final campaigns are curated and shipped with human judgement and distinctive taste.
• Produce bold multimedia and integrated campaigns at scale. Original, high quality, impossible to ignore.
• Foster authentic relationships that AI can’t summarize. These include the founder brand, hx Live Summit series, and customer advisory boards.
• Build influence with industry voices. Track it with share of voice and mentions, not vanity metrics.

Director, Corporate Marketing

Operations

• Help the CMO build the first true human + AI marketing team. That means governance, upskilling people, and making AI adoption part of the culture. Success = the rate at which your teammates actually use AI agents and the combined impact they have together (where 1+1=3).
• Oversee GTM Engineers who embed AI into the marketing stack, so campaigns run themselves, sales workflows move faster, and customers feel like we built the product just for them.
• Conceive and deploy AI teammates - for lead intelligence, content personalization, outbound that drive efficiency, cut costs, and create revenue streams others can’t see yet.
• Work across Marketing, Sales, Product, and Success to shorten the sales cycle and turn pipeline into revenue faster.
• Never stop experimenting. Use data, predictive models, and AI insights to keep pushing CAC down and conversion up at every stage of the funnel.

Growth Strategy and Operations Leader, AI-Native

Frontend Engineer

• Own the development, enhancement, and support of workflow-related UI features in hx Renew’s frontend—using and extending hx’s design system and component library (shadcn + tailwindcss)
• Implement and maintain accessible UI components for complex user journeys
• Collaborate with backend engineers and product specialists to clarify requirements and deliver user-friendly solutions
• Work closely with designers to translate Figma mockups into production-ready components using hx’s design system
• Engage with frontend engineers from other hx teams: share pattern updates, participate in code reviews, and uphold consistency and standards
• Support continual improvement of the team’s Product Domain through proactive UI/UX and usability fixes
• Write and maintain unit and integration tests; support CI/CD reliability
• Contribute documentation and share knowledge related to both the team and the wider frontend engineering community at hx

Software Engineer

• Learn the hx Renew modelling platform and ship models independently within days
• Build models in Python for seamless integration using cutting-edge approaches
• Work directly with customer actuarial teams, partner developers and internal development teams to solve complex coding problems using Python
• Develop cutting-edge technical solutions alongside engineers, actuaries, mathematicians and data scientists
• Review existing Python model development approach and contribute to best-practice guides
• Contribute to internal and external training & development materials
• Day-to-day quality assurance of in-flight client and internal projects
• Seek opportunities to improve model development standards and ways of working

Junior Model Developer

Developer Relations

• Lead AI-driven initiatives to identify opportunities where AI improves developer workflows, automating repetitive tasks and accelerating decision-making
• Define and shape the approach to incorporating AI into engineering workflows and adopt best AI tools and techniques
• Collaborate with teammates, share knowledge, and foster a culture of learning to make AI accessible across the engineering organisation
• Prototype and implement creative AI solutions that make engineers faster, more efficient, and more effective
• Build and maintain underlying AI infrastructure, RAG pipelines, and data pipelines for an engineering context
• Evaluate and integrate AI-powered solutions (IDE integrations, code review tools) and lead delivery of new initiatives

Senior AI Engineer, Developer Experience

Consultant

• Refine the value proposition for sales and renewals on accounts that drive > $150k ARR across strategic, US and international pods
• Run ground-up discovery engaging with underwriters, actuaries, IT and executives to understand workflows and quantify pain points
• Proactively share learnings and insights back to product and marketing teams to refine and scale the value consulting capability
• Run and own workshops focused on pricing capability assessment and transformation
• Manage engagement with a variety of stakeholders from junior underwriters to C-suite contacts such as CUOs and CTOs
• Build strong internal relationships with account executives, sales directors and customer success managers
• Proactively aggregate data to develop industry insights and benchmarks for customers and the broader industry
• Collaborate with Marketing, Sales and Product to leverage insights for customer engagements, lead generation and product strategy
• Provide wider support to Pricing and Innovation projects focused on improving pricing capabilities and customer value from hx Renew
• Support marketing campaigns, demand generation, GTM for new product releases and renewal conversations
• Constantly iterate, refine and improve internal processes through the use of AI and other tools

Value Consultant

• Own the development, enhancement, and support of workflow-related UI features in hx Renew’s frontend—using and extending hx’s design system and component library (shadcn + tailwindcss).
• Implement, and maintain accessible UI components for complex user journeys.
• Collaborate with backend engineers and product specialists to clarify requirements and deliver user-friendly solutions.
• Work closely with designers to translate Figma mockups into production-ready components using hx’s design system.
• Engage with frontend engineers from other hx teams in a leading role: share pattern updates, participate in code reviews, uphold and improve consistency and standards, and support growth of less-experienced colleagues.
• Support continual improvement of the team’s Product Domain through proactive UI/UX and usability fixes.
• Write and maintain unit and integration tests; support CI/CD reliability.
• Contribute documentation and share knowledge related to both the team and the wider frontend engineering community at hx.

Senior Frontend Engineer

• Drive high-impact initiatives: lead cross-cutting engineering efforts, especially early-stage or ambiguous projects
• Shape our technical future: contribute to and evolve the Engineering Vision to raise quality and sustainability
• Partner deeply across teams: work with Engineering Managers and Product Managers to support teams building secure, scalable, high-performing software
• Guide architectural decisions: consult on system designs and help teams anticipate future technical challenges
• Elevate engineering practices: scale local wins into org-wide standards to improve velocity, reliability, and developer experience
• Build trust and alignment: communicate technical concepts and help stakeholders align on priorities and outcomes
• Lead in moments that matter: provide calm, decisive leadership during high-stakes incidents and keep initiatives on track
• Grow the culture: mentor engineers, contribute to talent development, and foster curiosity, collaboration, and continuous learning
• Work across domains, systems and initiatives rather than being tied to a single team
• Take ideas from napkin sketch to production-grade systems and set patterns for AI integration and scalability

Staff Engineer – Technical Leadership

QA Automation Engineer

Location: You will be required to work in person from our London office, next to Borough Market 2 days a week.
Reporting to: Emma Kelly, Chief Operating Officer
At hx, Central Functions power everything from finance and people operations to compliance and risk management.
As an AI Automation Engineer, reporting into the Chief Operating Officer, youll build and deploy AI-powered automation systems that eliminate manual inefficiencies, improve data accuracy, and scale our operational capabilities.
Partner across Finance, People, Talent, Legal, Risk and Compliance, acting as the builder and integrator of the workflows that keep hx moving fast and focused.
Design and maintain automation workflows across Central Functions, buildingand maintaining 15+ production automations within 6 months, achieving 95%+ uptime, and reducing manual processing time by 60% for key operational tasks.
Partner with stakeholders in Finance, People, Talent, Legal, Risk and Compliance to identify and automate 25+ repetitive processes within 12 months, delivering measurable efficiency gains.
Prototype and deploy LLM-powered workflows and agents (e.g., for onboarding, compliance checks, reporting and document classification) that eliminate manual effort and free teams to focus on strategic work.
Research and test emerging AI/automation tools, executing 2–4 quarterly pilot projects with at least 60%+ progressing into production.
Build dashboards and reporting systems that surface operational KPIs and highlight quantifiable efficiency improvements worth £200K+ annually.
Implement strong governance and documentation for all workflows, ensuring transparency, audit-ability, and compliance with data standards.

Workflow Automation Engineer

Account Executive

• Location: 2-3 days a week in the office (NYC) or on a client site; role includes national & international travel
• Reporting to North America Sales Director (Steve Cargill)
• Mission: grow hx to a $100M+ revenue company and reach unicorn status by new client acquisition and account growth
• Sell hx Renew, a self-serve risk modelling SaaS platform that accelerates model deployment
• Build sales plans, prospect, manage and close deals in assigned territory; target clients with >$100M revenues
• Manage relationships with multiple senior stakeholders and engage internal resources (pre-sales, professional services)
• Collaborate with Sales Development, Marketing, Product and Customer teams to generate pipeline and expand accounts
• Participate in marketing events, build partner relationships and contribute to training & certification initiatives