Senior Frontend Engineer (Payments Platform) (Yerevan only)

About the role

As a Senior Frontend Engineer on the Payments Platform team, you'll build scalable, high-performance frontend infrastructure and user experiences that power payment flows for global merchants. You'll work closely with product, design, backend, and customer-facing teams to ship reliable, elegant, developer-friendly solutions used across multiple products and integrations. The role combines strong product thinking with engineering excellence — from building reusable UI systems and SDKs to optimizing performance, reliability, and scalability across our platform.

Responsibilities

• Design and develop scalable, performant, maintainable frontend applications using React, TypeScript, and modern web technologies.
• Build reusable UI components, shared libraries, and SDKs that support multiple products and integrations.
• Collaborate closely with Product, Design, Backend, and Customer-facing teams.
• Own features end-to-end — technical planning, architecture, implementation, testing, deployment, and monitoring.
• Optimize application performance, responsiveness, and reliability across devices and browsers.
• Code reviews, testing, documentation, and observability.
• Publish and manage SDK and NPM package versions, including backward compatibility and release management.

• Improve development workflows, tooling, and engineering best practices across the frontend ecosystem.

   

Requirements

• 5+ years of experience building modern web applications.
• Strong proficiency in React, TypeScript, JavaScript, HTML, CSS.
• Experience designing and maintaining reusable frontend architectures, component libraries, or SDKs.
• Experience managing NPM packages, versioning, and release processes.
• Experience building and maintaining frontend integrations with global payment platforms (Adyen, Stripe, Nuvei) — hosted components, wallets, alternative payment methods.
• Strong understanding of frontend performance optimization and modern browser behavior.
• Experience working with APIs and complex asynchronous flows.

• Excellent written and verbal English.

   

Nice to have / Advantage

• Familiarity with Next.js (SSR / App Router).
• Familiarity with additional frontend frameworks (Angular, Vue, etc.)
• Experience with cloud environments and CDN infrastructure (AWS preferred).

• Experience working in production-scale environments with high reliability requirements.