Senior Frontend Engineer – AI Products

hyperexponential

Senior Frontend Engineer responsible for UI features in hx Renew's workflow within an AI-powered insurance platform. Collaborating across teams to deliver scalable and performant applications.

Posted 5/18/2026full-timeWarsaw • 🇵🇱 PolandSenior💰 PLN 28,000 - PLN 37,000 per monthWebsite

Tech Stack

Tools & technologies

React

About the role

Key responsibilities & impact

Designing, implementing, and maintaining workflow-related UI features in hx Renew, delivering user interfaces that are both performant and reliable.
Translating designs into production-ready React components using shadcn and tailwindcss, ensuring alignment with hx’s design system.
Acting as the primary frontend voice within your product team, collaborating with product managers, backend engineers, and designers to define requirements and solutions.
Extending and maintaining hx’s shared component library, driving consistency and scalability across multiple product teams.
Leading by example within the frontend community, supporting less-experienced engineers through mentoring, reviews, and shared learning.
Improving reliability through rigorous testing (unit, component, integration) and strengthening CI/CD processes for frontend delivery.

Requirements

What you’ll need

Delivered large-scale React applications in production, demonstrating mastery of component design, state management, and frontend architecture.
Built and maintained design systems or component libraries that enabled consistent and accessible UIs across multiple products or teams.
Implemented complex frontend features involving API integrations and business logic that improved usability and performance for end users.
Strengthened engineering practices by introducing or enhancing testing frameworks and CI/CD pipelines for frontend systems.
Led or mentored peers within a frontend engineering community, raising quality through code reviews, documentation, or technical guidance.
Worked effectively in cross-functional product teams, demonstrating ownership, adaptability, and a focus on delivering impact for users.

Benefits

Comp & perks

Share Options at a highly successful Series B company
25 days of non-working + 14 Polish bank holidays
£5,000 budget for Learning & Development
Mental Health Support and Therapy via Spectrum Life
Optional for you: access to Healthcare package provided by Luxmed + Multisport (fully funded by yourself as B2B Contractor)
Top-spec laptop (MacOS or Windows)
26 days of holiday + 14 Polish bank holidays
Company pension
10 days company sick pay at 100% salary, thereafter in line with labour law
Monthly wellbeing allowance via Juno
Top-spec work equipment (MacOS / Windows + additional monitors, mechanical keyboards etc)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Reactshadcntailwindcsscomponent designstate managementfrontend architectureAPI integrationstesting frameworksCI/CDunit testing

Soft Skills

mentoringcollaborationownershipadaptabilitycommunicationleadershipproblem-solvingcode reviewsdocumentationtechnical guidance