hyperexponential - Senior AI Engineer
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Requirements
• Built or significantly evolved AI-assisted engineering workflows that measurably accelerated delivery speed while maintaining production reliability. • Delivered complex product features or systems across unfamiliar codebases by rapidly understanding architecture, dependencies, and operational constraints. • Architected scalable cloud infrastructure and CI/CD systems that enabled fast, reliable software delivery in production environments. • Implemented automated testing, security, or quality systems that reduced operational risk while increasing development velocity. • Evaluated and integrated modern AI development tooling, selecting pragmatic solutions that improved developer productivity and software quality. • Led or influenced engineering teams to adopt new technical practices, raising standards through mentorship, documentation, and hands-on collaboration. • You’re unlikely to thrive here if • You prefer clearly defined ownership boundaries and predictable roadmaps over navigating ambiguity and moving quickly across unfamiliar systems. • You are uncomfortable challenging established engineering practices or experimenting with new approaches to software development. • You prefer incremental optimisation of existing workflows rather than fundamentally rethinking how engineering work gets done. • 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.
Responsibilities
• Design and deliver complex product epics at 3–5x the velocity of baseline engineering teams, ensuring high-quality functionality reaches customers faster without compromising system integrity. • Architect AI-assisted guardrails across the SDLC, including autonomous testing pipelines, AI-driven security reviews, and automated code quality agents that maintain stability while enabling rapid iteration. • Use AI tools to rapidly map dependencies and navigate unfamiliar parts of the hx codebase, safely delivering cross-domain improvements without relying on traditional code ownership boundaries. • Build and evolve AI-native development workflows, integrating best-in-class tooling across coding, testing, CI/CD, and deployment environments. • Translate successful strike team practices into documented patterns, reusable tooling, and “paved road” workflows that scale across the wider engineering organisation. • Partner with engineers and technical leaders to share knowledge, mentor teams, and accelerate adoption of AI-native engineering practices across hx.
Benefits
• 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. • Equity: • £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 • Top-spec equipment (laptop, screens, adjustable desks, etc.). • Regular remote and in-person hackathons, lunch and learns, socials, and game nights. • Quarterly 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.
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