Senior Frontend Engineer - AI

Department: Dev & Engineering Location: Portugal Description About Intermedia Are you looking for a company where YOUR VOICE is heard? Where can you MAKE A DIFFERENCE? Do you THRIVE in a FAST-PACED work environment? Do you wake every morning EXCITED to work with GREAT PEOPLE and create SUCCESS TOGETHER? Then Intermedia is the place for you. Intermedia has established itself as a leading provider of cloud communications and collaboration tech that allows companies to connect better. We have a strong track record of growth, profitability, and creating an environment where everyone matters. Everyone. While we are fast-paced and admittedly a bit intense, we promise that you won’t be bored. You will find Intermedia is a place where you can indulge your passion for creating and supporting great cloud technology. What’s more, we always look to promote from within and have many employees who have been with us 10, 15, and 20+ years! Culture at Intermedia is built on teamwork and transparency. We hold each other accountable and always have each other’s back! Are you ready to make your mark? About The Role In this role, you will design and build sophisticated web experiences that enable customers and end users to interact naturally and effectively with AI-powered digital agents. You will help define how digital agents are delivered through web channels, creating intuitive, responsive, accessible, and reliable experiences that bring Intermedia's agentic AI capabilities directly to users. You will work closely with Product, UX, backend engineering, AI/ML, and platform teams to translate complex conversational and agentic capabilities into simple, trusted user experiences. You will solve challenging frontend engineering problems involving real-time conversations, streaming AI responses, dynamic interactions, embedded experiences, and transitions between digital agents and human assistance. As a senior technical contributor, you will influence frontend architecture and technical direction, lead complex initiatives from design through production, and help establish engineering standards and patterns that can scale across Intermedia's digital channels. What You Will Be Doing Design, develop, test, and maintain high-quality web applications and frontend capabilities that power interactions with Intermedia's digital agents. Build intuitive conversational experiences that enable users to interact naturally with AIpowered agents through web channels. Develop reusable web components and frontend capabilities that allow digital agent experiences to be embedded across Intermedia products and customer-facing websites. Build responsive experiences for real-time and asynchronous AI interactions, including streaming responses, typing and processing states, long-running operations, errors, and interruptions. Develop user experiences that clearly communicate agent actions, status, results, limitations, and requests for additional information. Build interaction patterns that support rich conversational experiences beyond text, including structured content, forms, actions, links, files, and other interactive elements. Develop experiences that support effective transitions and handoffs between digital agents and human assistance while maintaining appropriate conversation context. Partner with AI/ML and backend engineers to define APIs, events, data contracts, and Interaction Patterns Required To Support Digital Agent Experiences. Collaborate closely with Product and UX to translate customer needs, conversational Design, And Emerging AI Capabilities Into Intuitive Product Experiences. Help define frontend architecture and reusable patterns for digital agent experiences across web channels. Design solutions that support configuration and customization of digital agent experiences while maintaining consistent engineering and UX standards. Optimize applications for performance, responsiveness, scalability, and reliability across browsers, devices, network conditions, and customer environments. Ensure digital agent experiences meet appropriate accessibility and inclusive design standards. Design frontend applications with appropriate consideration for authentication, authorization, privacy, security, and protection of sensitive information. Build appropriate analytics, telemetry, monitoring, logging, and observability into digital agent experiences. Use product and operational data to identify performance issues and opportunities to improve the user experience. Lead technical design discussions and provide guidance on complex frontend engineering decisions. Conduct code and design reviews and help establish strong standards for frontend architecture, code quality, testing, performance, and maintainability. Troubleshoot complex production issues spanning frontend applications, APIs, real-time interactions, and AI-enabled experiences. Mentor and coach engineers and contribute to raising frontend engineering capabilities across the team. Lead complex frontend initiatives from concept and technical design through implementation, deployment, and continuous improvement. Stay current with emerging technologies and engineering approaches related to frontend development, conversational interfaces, AI agents, and human-AI interaction. What You Will Bring To The Role Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience. 8+ years of professional software engineering experience, with significant experience developing sophisticated frontend applications. Deep proficiency in JavaScript and/or TypeScript and modern frontend frameworks such as React or Angular. Strong knowledge of HTML, CSS, responsive design, browser technologies, and modern web application architecture. Demonstrated experience designing and building complex, interactive web applications used in production environments. Strong understanding of frontend architecture, component design, state management, application performance, and maintainability. Experience designing reusable frontend components, libraries, or application frameworks. Experience integrating frontend applications with RESTful APIs, asynchronous services, and distributed backend systems. Experience building real-time, asynchronous, or event-driven user experiences. Strong understanding of automated frontend testing and modern software engineering practices. Experience designing applications for performance, scalability, reliability, and production support. Strong understanding of web accessibility, responsive design, browser compatibility, and frontend security. Experience with CI/CD, source control, code reviews, observability, and modern software delivery practices. Demonstrated ability to independently lead complex technical initiatives from design through production. Strong problem-solving skills and the ability to navigate ambiguous and evolving technical requirements. Experience providing technical guidance, code review, or mentorship to other engineers. Strong communication and collaboration skills with the ability to influence technical decisions and work effectively across Product, UX, frontend, backend, AI/ML, and platform teams. Working understanding of Agile development methodologies and frameworks. Diversity, Inclusion, and Equal Opportunity We hire, promote, and compensate employees based on their ability to perform their job responsibilities, without regard to race, color, creed, religion, sex, gender, marital status, national origin, ancestry, age, citizenship, physical or mental disability, sexual orientation, or any other basis protected by applicable law (collectively referred to in our Code of Conduct as “Protected Classes”). We do not tolerate employment discrimination in the workplace, and we are committed to making reasonable accommodations for identified disabilities or other limitations as required by all applicable laws. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.