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Senior Frontend Developer

Titan Clarity

Vitória

Presencial

BRL 120.000 - 160.000

Tempo integral

Ontem
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Resumo da oferta

A tech company located in Brazil seeks a skilled frontend engineer with over 8 years of experience. The ideal candidate should be proficient in JavaScript and TypeScript, with strong React skills. Familiarity with modern AI coding tools is essential, along with a solid understanding of HTML5, CSS3, and testing frameworks. This role offers the opportunity to work on high-availability systems and contribute to performance optimizations in a collaborative environment.

Qualificações

  • 8+ years of frontend engineering experience on high-availability, scalable systems.
  • Strong performance profiling and optimization skills.
  • Experience consuming REST APIs and collaborating with backend teams.

Conhecimentos

Fluent English communication
JavaScript fundamentals
TypeScript experience
React experience
HTML5 / CSS3 skills
Testing discipline
Git proficiency
AI coding systems

Formação académica

BSc / MSc in Computer Science or equivalent

Ferramentas

Node.js
Jest
React Testing Library
Playwright
Webpack
Git
Descrição da oferta de emprego
Requirements
  • Fluent English communication, written and spoken.
  • BSc / MSc in Computer Science or equivalent practical experience.
  • 8+ years of frontend engineering experience on high-availability, scalable systems.
  • Strong fundamentals in JavaScript (Vanilla JS, OOP, clean code, design patterns) and TypeScript (or proven ability to introduce TS incrementally in legacy codebases).
  • Deep React experience using modern state / data patterns (Redux Toolkit, React Query / SWR, Zustand, Context), with the ability to work within existing Redux / Redux-Saga setups.
  • Excellent HTML5 / CSS3 skills (Flexbox, Grid), responsive / mobile-first design, and CSS preprocessors (SASS / LESS).
  • Solid understanding of the JavaScript ecosystem (Node.js, Babel) and modern build tooling (Vite / Webpack; npm / yarn / pnpm).
  • Strong testing discipline with Jest, React Testing Library, and Playwright or Cypress; understands TDD principles.
  • Proven experience with performance profiling and optimization (bundle size, rendering, Web Vitals, memory leaks).
  • Strong experience consuming REST APIs and collaborating with backend teams.
  • Comfortable with Git and modern delivery workflows (PRs, code reviews, CI / CD).
  • Hands‑on experience using agentic AI coding systems for multi‑step engineering tasks.
  • Strong grasp of core agentic AI foundations, including: AI coding tools (e.g. Claude Code, Copilot, Gemini CLI, ChatGPT Codex), Context & memory management, Commands, sub‑agents, and MCP servers, Structured outputs (JSON schemas), Function / tool‑calling best practices (e.g. CLI tool usage).
Nice to have
  • Experience with monorepos (Nx, Turborepo).
  • Frontend observability (Sentry, Datadog RUM, OpenTelemetry).
  • Knowledge of Next.js, UI frameworks (Chakra UI).
  • Familiarity with GraphQL and large‑scale data systems (RDBMS / NoSQL).
  • Experience with real‑time technologies (WebSockets, WebRTC).
  • Service Workers, streaming technologies, and advanced caching.
  • Advanced agentic AI patterns, such as hooks, RAG, cost optimization, self‑checking / critique loops, tool mocking for tests, and A / B testing prompts or agents.
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