CareerPlan

Senior Frontend Engineer

SpainFull-time2026-10-08 → 2026-11-10

Core

Build high-quality, responsive web applications (dashboards, campaign builders, reporting UIs) for a B2B sales platform using React + TypeScript.

Role type

Senior Frontend Engineer

Builds

Customer-facing product features, internal tools, and API layers

Domain

B2B SaaS / Sales Technology

Deliverable

product features

Required skills

TypeScript, React, modern web architectures, API integration, autonomous debugging, product sensibility

Preferred skills

UI performance optimization, design systems, a11y testing, SSR/edge rendering, Node.js, PostgreSQL, CI/CD (GitHub Actions), early-stage startup experience

Technologies

React, TypeScript, Node.js, GitHub Actions, PostgreSQL

Responsibilities

Develop responsive web applications, own core UIs and API layers, work on SSR/edge rendering, focus on performance and Core Web Vitals, collaborate with Product/Design/Backend to ship features, shape frontend practices and architecture

Seniority

Senior, hands-on IC