Senior Web Developer

Stack

Responsibilities

• ▹Integrate user-facing elements built by front-end developers with server-side logic
• ▹Write reusable, testable and efficient code
• ▹Design and implement low-latency, high-availability, high-performance applications
• ▹Implement security and data protection
• ▹Integrate data storage solutions
• ▹Create a design system and web components for use in third-party applications
• ▹Ensure SDK compatibility across browsers, frameworks and integration environments
• ▹Optimize bundle size, tree-shaking and build performance for SDK distribution
• ▹Collaborate with backend and mobile teams to keep the SDK consistent across platforms
• ▹Maintain high-quality documentation and developer experience for SDK integrators
• ▹Design and maintain automated pipelines for publishing and versioning SDK releases

Requirements

• ▹3+ years of experience using React
• ▹Advanced English (written and spoken) to work with international teams and documentation
• ▹Strong knowledge of JavaScript, React, Node, CSS, Git and NPM
• ▹Knowledge of unit testing, E2E testing and CI/CD
• ▹Knowledge of TypeScript, OOP and yarn
• ▹Autonomy in task execution
• ▹Experience with the SCRUM framework
• ▹Experience using Nest, NextJS, Storybook, Emotion, AWS services (S3, Amplify), Docker and Bitbucket
• ▹Experience using AI-assisted development tools (e.g. Claude Code, Cursor, GitHub Copilot, ChatGPT) in the software development lifecycle
• ▹Experience using Large Language Models (LLMs) for software design, implementation, debugging, testing, documentation and code reviews

Nice to have

• ▹Enthusiasm for understanding and analyzing complex problems
• ▹Experience in the payment industry
• ▹Experience integrating Payment Service Providers
• ▹Knowledge of 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

Soft skills

What we offer

• ▹Competitive compensation
• ▹Remote work from anywhere
• ▹Home office bonus: a one-time allowance to create an ideal home office
• ▹Work equipment
• ▹Stock options
• ▹Health plan wherever you are
• ▹Flexible days off

About the company

Yuno builds the payment infrastructure that lets all companies take part in the global market. It integrates over 1,000 payment methods via a single API and runs smart routing and fraud prevention across 80+ countries.