Software Development Engineer III - Fullstack

Summary

Join interface.ai, a leading AI provider for banks and credit unions, as a Senior Full Stack Engineer. Build and maintain high-performing web interfaces using React (or equivalent) and Node.js, creating intuitive and accessible experiences for users navigating financial services through chat and digital channels. Collaborate with designers and product managers to translate wireframes into production-ready applications. Design and implement scalable frontend patterns and reusable UI components. Optimize for accessibility, localization, and performance across various browsers and devices. Contribute to crafting experiences that blend intelligence, automation, and trust, impacting millions of interactions.

Requirements

• 4+ years of professional experience in frontend or full-stack engineering
• Advanced proficiency with JavaScript/TypeScript and modern frameworks (React, Vue, etc.)
• Deep understanding of HTML, CSS, accessibility (a11y), and responsive design principles
• Experience in building backend systems working with real-time data and WebSocket-style protocols
• Strong product sensibility and empathy for UX, edge cases, and error states in interactive flows

Responsibilities

• Build and maintain modern, performant web interfaces using React (or equivalent) , delivering high-quality experiences across desktop and mobile
• Build the backend APIs (Node.js), orchestration layers, and real-time messaging systems
• Collaborate closely with designers and product managers to turn wireframes and prototypes into elegant, production-ready experiences
• Design and implement frontend patterns, design systems, and reusable UI components that scale across use cases
• Handle session management, personalization logic, and dynamic content rendering to support intelligent agent behavior
• Optimize for accessibility, localization, responsiveness, and performance across browsers and devices

Preferred Qualifications

• Experience with design systems, UI performance optimization, or complex state management (e.g., Redux, Zustand, XState)
• Exposure to conversational UIs, AI interfaces, or chat-based products
• Familiarity with analytics instrumentation, experimentation frameworks, or usage tracking
• Prior work in B2B SaaS, fintech, or regulated environments

Benefits

• Help design the next generation of AI-first interfaces , powering real-time assistance in financial services
• Own experiences that shape trust, usability, and adoption of intelligent agents across diverse user bases
• Join a product-first, fast-growing AI company where engineering craft meets design rigor and user empathy
• Work with a highly collaborative team of engineers, designers, and AI researchers solving real-world interaction problems at scale