Frontend Engineer III (Vue.js, Micro Frontends, Journey Builder) at Vonage

Join Vonage and help us innovate cloud communications for businesses worldwide! Why this role matters: We are looking for a Frontend Engineer III for our Jumper AI / Conversational Commerce platform to lead the development of a Journey Builder, a rich, interactive workflow design experience used to model complex, event-driven customer journeys. This role focuses on building highly interactive frontend systems using Vue.js, capable of handling large graphs, conditional flows, and real-time user interactions under sub-optimal client-side performance conditions such as large datasets, limited device resources, and long-lived browser sessions. You will work closely with Design and Product to translate complex capabilities into simple, intuitive, and visually rich user experiences, while driving frontend engineering best practices across the team. Your key responsibilities: • Design and build the Journey Builder UI using Vue.js and modern frontend tooling. • Implement complex interactions such as node-based editors, drag-and-drop flows, branching logic, and real-time validation. • Own frontend architecture decisions, ensuring scalability, reusability, and long-term maintainability. • Optimize client-side performance for large, state-heavy workflows and constrained environments. • Establish standards for state management, error handling, loading states, and user feedback. • Collaborate closely with Product, Design, Backend, and Platform teams on end-to-end solutions. • Lead code reviews, mentor engineers, and document frontend architecture and best practices. What you'll bring • 6+ years of frontend engineering experience in production environments. • Strong expertise in Vue.js and modern JavaScript (ES6+). • Proven experience building complex, highly interactive web applications. • Deep understanding of frontend performance optimization and browser behavior. • Hands-on experience with frontend state management patterns and libraries. • Experience owning frontend features end to end in collaboration with Product and Design. • Strong architectural mindset with the ability to balance usability and technical constraints. • Embed AI assisted engineering into daily practice to accelerate delivery and enhance outcomes • Proactively adopt emerging AI capabilities to improve workflows and shares best practices with the team. Experience we consider a plus: • Experience building workflow editors, diagram-based tools, or low-code platforms. • Exposure to Micro Frontend architectures and module federation. • Familiarity with canvas or SVG-based rendering for complex visualizations. • Knowledge of accessibility standards and inclusive design practices. How you’ll benefit: • Attractive Discretionary Time Off • Private Medical Insurance with optional dependent coverage • Educational Assistance Reimbursement Program • Opportunities for reimbursement for conferences, trainings, and other personal development events • Maternity and Paternity Leave • Ask recruiter for country specific information • Additional benefits and perks will be shared and discussed with you by the recruiter during the interview process. There’s no perfect candidate. You don't need all the preferred qualifications to make a valuable impact on our team. Our employees and customers come from diverse backgrounds, so if you're passionate about what you could achieve at Vonage, we'd love to hear from you. To learn how we process your personal data during the recruitment process, please refer to our Privacy Notice. Who we are: Vonage is a global cloud communications leader. And your talent will further help brands - such as Airbnb, Viber, WhatsApp, and Snapchat - accelerate their digital transformation through our fully programmable-based unified communications, contact center solutions, and communications APIs. Ready to innovate? Then join us today. Note: The purpose of this profile is to provide a general summary of essential responsibilities for the position and is not meant as an exhaustive list. Assignments may differ for individuals within the same role based on business conditions, departmental need or geographic location.