Senior Software Engineer, Frontend

Payabli is a next-generation Payments Infrastructure and Monetization Platform designed for vertical software companies. As a Senior Software Engineer, Frontend, you will be responsible for developing user interfaces that connect complex financial infrastructure with end users, ensuring a seamless and enjoyable experience while maintaining high standards of security and performance.

Responsibilities:

• Build the product people touch. Design, develop, and maintain the frontend applications and reusable component libraries that power Payabli’s, and its partners, platforms
• Ship embeddable experiences. Build hosted payment forms, white-label components, and drop-in UI that third-party platforms integrated directly with their own products. Your code needs to be lean, flexible and rock-solid as it will be running inside other people’s software
• Bridge frontend and backend. Collaborate closely with other service owning teams to integrate via APIs and real-time data streams, ensuring seamless data flow across the stack & overall platform
• Raise the bar. Lead code reviews, champion frontend standards, and drive architectural decisions that keep the codebase healthy as we scale
• Multiply the team. Mentor engineers around you and elevate frontend engineering quality across the organization through pairing, documentation and leading by example
• Own the full lifecycle. Work across requirements, implementation, testing, and deployment. We don’t throw things over the wall here
• Sweat the details. Optimize for performance, accessibility, and cross-browser compatibility

Requirements:

• 5+ years of professional frontend engineering experience. You've shipped real products to real users
• React, React Native and Typescript fluency. You don't just use React, you understand its rendering model, know when to reach for which patterns, and can reason about performance at the component level
• Strong understanding of CSS and responsive design. You can build pixel-perfect, accessible interfaces without leaning on a framework for everything
• API integration experience. You've shipped products that rely upon APIs from multiple services and know to gracefully handle loading states, errors, and edge cases
• State management chops. Experience with Redux, Zustand, or similar frameworks. You have strong opinions on what is the right tool when
• Strong communicator. You enjoy walking your partners (design, PM, other engineers, leadership) through technical trade-offs
• Security awareness. Web security principles (XSS, CSRF, CSP, etc.) and build with them in mind from step on
• A degree in Computer Science, or related field (or equivalent experience – we care more about how you operate and what you can build)
• Prior experience in fintech or payments technology. Especially as it relates to good payments UX: checkout flows, merchant onboarding, reconciliation dashboards, or similar financial interfaces
• Experience building embeddable or white-label UI components. Bonus points if you've dealt with CSS isolation, versioning and cross-origin challenges