Senior Web Developer

3 months ago

Guayaquil, EcuadorSenior

Responsibilities

Build and maintain SDKs, design-system components, and web components for third-party applications.
Ensure consistent SDK behavior across browsers, frameworks, platforms, and integration environments.
Optimize application latency, availability, bundle size, tree-shaking, and build performance.
Integrate user-facing components with server-side logic and data storage solutions.
Write reusable, testable, efficient, secure, and data-protective code.
Maintain integrator documentation and developer experience while designing automated SDK publishing and versioning pipelines.
Collaborate with backend and mobile teams and establish AI-assisted development workflows using AI agents and MCP servers.

5+ years of experience building production applications with React.
Strong JavaScript and TypeScript skills and command of Node, CSS, Next.js, Storybook, and Emotion.
Experience with object-oriented programming, Git, unit testing, end-to-end testing, and build and packaging tools such as NPM or yarn.
Experience with AWS, including S3 and Amplify, and Docker.
Fluency with AI-assisted development tools such as Claude Code, Cursor, or GitHub Copilot and LLM-assisted engineering workflows.
Ability to work autonomously and deliver tasks end to end in a Scrum environment.
Advanced written and spoken English proficiency.
Preferred qualifications include payments-industry experience, Payment Service Provider integrations, backend experience such as NestJS, backend-language familiarity, and experience with AI agents, MCP servers, development assistants, or engineering automation platforms.
Spanish proficiency and experience defining AI-driven engineering practices are nice to have.

Remote work from Europe or Latam and elsewhere.
One-time home-office setup allowance.
Work equipment, stock options, and a health plan wherever the employee is located.
Flexible days off.
Language, professional, and personal growth courses.

1,001-5,000 employees