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Senior Frontend Engineer (React + UX/UI + AI-Accelerated Development)

📍 Brazil

Tecnologia Directful

Descrição da Vaga

We are a Silicon Valley–based product company building a next‑generation B2B single-page application used daily by enterprise customers. We’re looking for a

Senior Frontend Engineer

who is both a

hands-on React expert

and a

strong UX/UI thinker,

someone who can own the user experience end‑to‑end, from concept to polished production implementation. This is a role for a

self-directed, highly motivated engineer

who can hit the ground running, collaborate closely with product/design, and loves leveraging the

latest AI tools

to accelerate design, coding, testing, and iteration.

What You Will Do Architect, build, and deliver modern, high-performance React applications for a complex B2B SaaS product. Translate product concepts and user workflows into frictionless UX flows, wireframes, and pixel-perfect UI components. Collaborate with Product, and Backend teams to shape features from idea to release. Implement real-time features using

SignalR

and other websocket technologies. Work with

AI agents and tools

daily for coding, refactoring, UI generation, documentation, and test creation. Write automated tests with

Playwright

and other testing frameworks. Drive UI performance, accessibility, and maintainability best practices. Think holistically: not just “take tasks,” but help shape the product, the experience, and the architecture.

Must-Have Qualifications Full US Pacific Time availability

(not partial overlap). Fluent verbal and written English; comfortable with daily

video-based collaboration

. 5+ years of hands-on

React

experience (hooks, context, state management, component architecture). Strong UX/UI sensibility—capable of producing or improving wireframes, interaction flows, and visual details. Experience working directly from

Figma

or similar UI tools. Experience with

real-time applications

(SignalR preferred but not required). Comfort with

Node.js

for lightweight tooling or UI-supporting backends. Familiarity with

Electron

,

WebSockets

, and

HTML5

. Regular, disciplined use of

AI tools

for development. Strong communication, accountability, and a bias toward problem-solving.

Nice-to-Haves Experience with B2B SaaS products and complex user workflows. Understanding of frontend architecture patterns at scale. Background in design systems or component libraries. Experience in performance tuning for real-time or heavy-data UIs.

Who You Are A

team player

with strong ownership and bias for action. Someone who enjoys “figuring things out” rather than waiting for instructions. A builder who can

think outside the box

, challenge assumptions, and propose better solutions. A believer in

AI-accelerated engineering

and modern best practices. A product-mindset engineer who cares deeply about user experience—from pixels to workflows.

Why Join Us You’ll be joining a tight‑knit, fast-moving team where your work directly shapes the product experience. You’ll have the autonomy to influence UI/UX direction, introduce best practices, and work with a modern AI-enabled workflow that rewards creativity and initiative. If you are a

senior frontend engineer who crafts beautiful interfaces, moves fast, and wants to push the edge of what AI-accelerated development can do

, we’d love to talk.

Ready to Apply?

Don't miss this opportunity! Apply now and join our team.

Detalhes da Vaga

Data de Publicação: February 28, 2026
Tipo de Vaga: Tecnologia
Localização: Brazil
Company: Directful

Ready to Apply?

Don't miss this opportunity! Apply now and join our team.