Senior Front End Engineer

 Posted 20 days ago
  
 Brazil
  
5-10 years experience
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AI Summary

The role involves designing and implementing public-facing and internal features to improve user experience, performance, and SEO. Responsibilities include collaborating cross-functionally to deliver testable code and mentoring teammates on engineering standards and AI adoption.

Working hours: 11:30am - 4pm CT or at least 2hrs CT overlap

About the role:

We’re seeking a Senior Software Engineer (Front End) to own and deliver public-facing and internal features that improve user experience, performance, and SEO. You will work cross-functionally with PMs, designers, backend engineers, and QA on an agile team and be responsible for design, implementation, testing, and production support.

- Design and implement customer-facing features using Angular, React and TypeScript that meet performance, accessibility (a11y), and SEO goals.
- Collaborate with product and design to translate requirements into technical designs and estimates.

- Write clean, testable code and maintain a component-driven design system.
- Contribute to architecture and non-functional requirements (scalability, security, observability).
- Improve site speed and Core Web Vitals by optimizing bundles, rendering strategy, and caching.
- Implement and maintain automated tests (unit, integration, and E2E).
- Participate in sprint planning, code reviews, and delivery processes from story inception through production rollout.
- Support production services on a rotation basis and troubleshoot incidents to minimize downtime.
- Mentor teammates and help raise the team’s engineering standards.

What we’re looking for:

- Must have:

  • 5+ years professional front-end development experience (or equivalent demonstrable experience).

  • 3+ years building production applications with React and TypeScript.

  • Strong experience with modern front-end tooling: bundlers (webpack/Vite/Gulp), state management, component libraries, and design systems.

  • Proven ability to deliver features used in production and own them through lifecycle.

  • Proven experience using agentic AI tools (such Claude or GitHub Copilot) to accelerate front-end development workflows, including code generation, component building, and performance optimization.

  • Ability to mentor team members on effective AI usage; establishing best practices, identifying high-leverage opportunities, and fostering a culture of thoughtful, responsible AI adoption across the engineering team.

  • Experience embedding generative AI features directly into user-facing applications, such as intelligent interfaces, dynamic content generation, and LLM-powered experiences.

  • Experience writing automated tests (Jest/React Testing Library, Cypress or similar).

  • Solid understanding of web performance optimization, SEO fundamentals, and accessibility best practices

  • Familiarity with secure development practices and basic security testing concepts.

  • Experience working in agile teams and collaborating across disciplines.

  • Clear written and verbal communication skills.

  • Exposure to AI-assisted development workflows and prompt engineering best practices.


- Nice to have

  • Experience with server-side rendering / hybrid frameworks (Next.js) and edge caching strategies.

  • Experience with GraphQL, Node.js backends, or CMS integrations.

  • Prior experience optimizing large-scale sites for SEO and traffic.

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