Firstup

Sr. Software Engineer, Frontend

Vaga remota de Frontend Engineering com fit claro de localização do candidato.

Publicada19 de jul. de 2026

Países elegíveis1 país aceito

Sinal de senioridadeSenior

Modelo de trabalhoRemoto

Locais aceitos para candidatos

Reino Unido

Resumo da vaga

Conteúdo da vaga extraído em seções para revisão mais rápida.

Core Engineering: Build scalable frontend applications using modern React patterns and a component-driven architecture.
Systems Design: Own the design and implementation of a reusable, accessible component library and documentation.
Testing & Quality: Define the frontend testing strategy (Unit, Integration, E2E) including visual regression and user interaction coverage.
Performance & Reliability: Optimize client-side performance and ensure production readiness through observability, error monitoring, and rapid incident resolution.
AI Integration: Leverage and advocate for AI-assisted tools (e.g., GitHub Copilot, Claude) to accelerate development while maintaining rigorous engineering judgment and accountability for code correctness.
Leadership: Drive team-wide best practices, conduct quality code reviews, and mentor engineers to elevate overall engineering quality.
Collaboration: Partner with Product and Design to translate requirements into intuitive UI, making informed technical trade-offs in the face of ambiguity.

Experience: 5+ years building reliable, high-performance frontend applications at scale.
Core Stack: Expertise in React (Hooks, State Management), TypeScript, and modern tooling (Vite, Webpack).
Testing: Proficiency with Jest, React Testing Library, and Cypress/Playwright.
UI/UX: Proven experience building design systems or component libraries with a focus on WCAG accessibility.
AI Literacy: Demonstrated ability to use and critically validate AI-assisted coding outputs (e.g., Claude, Copilot).
Education: Bachelor’s in CS or equivalent practical experience.