Senior Web Developer (React)

Location: Remote; Poland, Portugal, Brazil, Colombia, Argentina, Spain, or Ecuador. The role also states that work can be performed from everywhere.

Company

hirify.global provides an AI-native payments operating system and single API connecting enterprise merchants, banks, and wallets to global payment infrastructure.

What you will do

• Build and maintain SDKs, design systems, and reusable web components for third-party applications.
• Ensure consistent SDK behavior across browsers, frameworks, platforms, and integration environments.
• Design low-latency, highly available applications and optimize bundle size, tree-shaking, and build performance.
• Integrate user-facing components with server-side logic and data storage solutions.
• Implement reusable, testable, efficient, secure, and privacy-conscious code.
• Maintain developer documentation and design automated pipelines for SDK publishing and versioning.

Requirements

• 5+ years of production experience with React, JavaScript, and TypeScript.
• Strong knowledge of Node, CSS, Next.js, Storybook, Emotion, OOP, Git, unit testing, E2E testing, and CI/CD.
• Experience with NPM or yarn, bundle optimization, AWS S3, AWS Amplify, and Docker.
• Fluent use of AI-assisted development tools such as Claude Code, Cursor, or GitHub Copilot across the development lifecycle.
• Ability to work autonomously, own tasks end to end, and work in Scrum.
• Advanced written and spoken English is required.

Nice to have

• Payments industry experience and experience integrating payment service providers.
• Backend experience with technologies such as NestJS and familiarity with backend languages.
• Experience building workflows with AI agents, MCP servers, development assistants, or engineering automation platforms.
• Experience defining AI-driven development practices within an engineering team.
• Spanish proficiency.

Culture & Benefits

• Remote work with the ability to work from everywhere.
• Health plan available wherever the role is performed.
• Home office bonus, work equipment, and stock options.
• Flexible days off.
• Language, professional, and personal growth courses.