Senior Web Developer

Remote, Europe time zones, Full Time, Individual Contributor, +6 years of experience

At Yuno, we are building the payment infrastructure that allows all companies to participate in the global market. Founded by seasoned experts from the payments and tech industries, our technology provides access to leading payment capabilities, enabling companies to engage customers confidently and maintain global operations through seamless integrations.

We empower high-performing teams at brands like InDrive, McDonald’s, Rappi, and Viva Aerobus to integrate over 1,000 payment methods via a single API. By leveraging advanced AI and the latest technologies, we orchestrate smart routing and fraud prevention across 80+ countries.

We are orchestrating the best high-performing team! 

If you are a Senior Web Developer professional passionate about innovation, joining Yuno will allow you to transform your passion into real high-impact solutions, contributing to our global expansion.

As a Web Developer, you will be part of the Core Checkout Team.

They are in charge of all the transactional parts and the way in which merchants are integrated into Yuno.

• Integration of user-facing elements developed by front-end developers with server-side logic.
• Writing reusable, testable, and efficient code.
• Design and implementation of low-latency, high-availability, and performant applications.
• Implementation of security and data protection.
• Integration of data storage solutions.
• Create a design system and web components that will be used in third party applications.
• Ensure SDK compatibility across different browsers, frameworks, and integration environments.
• Optimize bundle size, tree-shaking, and build performance for SDK distribution.
• Collaborate with backend and mobile teams to ensure SDK consistency across platforms.
• Maintain high-quality documentation and developer experience for SDK integrators.
• Design and maintain automated pipelines for publishing and versioning SDK releases.

• +3 years of experience using React.
• Advanced English level (written and spoken) to work with international teams and documentation.
• Strong knowledge of JavaScript, React, Node, CSS, Git, NPM
• Demonstrated knowledge using unit testing, E2E testing, CI/CD.
• Autonomy in tasks executions.
• Demonstrated knowledge in typescript, OPP and yarn.
• Experience using SCRUM framework.
• Experience using Nest, NextJS, Storybook, Emotion, AWS servicios (S3, Amplify), Docker, Bitbucket.
• Experience using AI-assisted development tools (e.g., Claude Code, Cursor, GitHub Copilot, ChatGPT, or similar) as part of the software development lifecycle.
• Experience leveraging Large Language Models (LLMs) to support software design, implementation, debugging, testing, documentation, and code reviews.
• Fluent English.

• Enthusiasm for understanding and analyzing complex problems.

• Experience in the payment industry.
• Experience integrating Payment Service Providers.
• Knowledge in Backend languages.
• Experience building custom workflows using AI agents, MCP servers, development assistants, or engineering automation platforms.
• Experience defining AI-driven development practices within engineering teams.