Senior Vue/Nuxt Frontend Engineer

A little bit about Flanks Flanks is shaking up the wealth management industry by making it simpler and way more efficient for financial institutions. Our SaaS platform is designed to help banks, family offices, and wealth managers get a full picture of their clients' financial assets—all in one place. Founded in 2019 and based in Barcelona, we've brought together a team of passionate wealth management and tech pros, all with a shared goal: to change how wealth management is done. Backed by €23 million in investment, we're growing fast, and we're not stopping anytime soon What we stand for:People First  – our team comes first. We want every Flanker  to feel at home, engaged, and part of something bigger. Keep Growing  – as the company grows, so should you. We're all about personal and professional development here. Think Twice, Act Once  – we believe in thoughtful decisions, considering the impact on both our team and our clients before taking action. If you're looking for a place where you can grow and make an impact at a fast-paced, exciting fintech startup, this might just be the place for you Tech Team (AI Platform) We're building the next generation of financial automation at Flanks: a multi-agent AI platform that reasons, fetches data, validates information, and works alongside humans in real time. As we scale this new system, we're facing fresh technical challenges — and that's where you come in: Build real-time UIs that show agent activity, stream data, and help humans understand complex system behavior. Visualize multi-agent flows, from who calls whom to how decisions propagate. Turn backend events into clarity, creating intuitive dashboards for auditing, monitoring, and validating financial data. Shape the frontend architecture of a brand-new product area inside Flanks. Collaborate deeply with backend + ML engineers to define contracts and create seamless interactions. About the role This is a Senior Frontend Engineer position (Vue + Nuxt), with a strong focus on real-time interfaces and AI-driven workflows. You'll own the frontend architecture of the AI platform end-to-end: designing components, building data-intensive dashboards, integrating real-time streams, and shaping the patterns that define how users interact with agents. As a senior, you will mentor teammates, lead initiatives, and be trusted to make decisions with high autonomy. You'll still be a hands-on contributor, but you'll also influence the direction, UX standards, and frontend quality of a highly strategic area for Flanks. You will have real agency. Your work will literally define how humans understand AI inside Flanks. What you'll do Frontend Architecture & Ownership Own the architecture of the AI/multi-agent frontend (Vue + Nuxt), from early design to production readiness. Maintain and evolve tooling, CI/CD, testing strategy, and internal component libraries relevant to the AI product area. Real-Time UI Development Build event-driven UIs using WebSockets/SSE to show: Streaming agent responses Live logs System state transitions Execution traces Ensure all real-time views are smooth, performant, and reliable. Interactive Components & Data Visualization Build rich, interactive components for: Conversation UIs (streaming token-by-token output) Agent graphs/flows (D3, Cytoscape, Vue Flow, or equivalent) Timelines, status panels, and debugging views Craft dense financial data dashboards that support auditing, validation, and decision-making. Collaboration Across the Stack Work closely with backend, ML, and infra teams to define events, APIs, and schemas. Ensure the frontend reflects the underlying multi-agent system with accuracy and clarity. Partner with Product and Design to create UX patterns for AI interactions (prompting, context, controls, feedback loops). Mentorship & Team Impact Mentor engineers on frontend best practices, especially around real-time apps and visualization. Contribute to architectural discussions, standards, and documentation. What we'd love to see Technical Excellence Expert-level frontend skills with Vue + Nuxt, including scalable component architecture, state management, routing, and performance tuning. Real-time UI experience using WebSockets/SSE or other event-driven streaming patterns. Strong experience buildingcomplex dashboards and data visualizations , Cytoscape, Vue Flow, or similar). Comfortable usingDocker / Docker Compose for local multi-service development.Familiarity with backend concepts, API design, and event schemas. Mindset & Way of Working Autonomous coder: rigorous, reliable, and self-driven. Problem-solver who takes ownership end-to-end — from idea to shipped feature. Strong communicator who explains trade-offs clearly and collaborates smoothly with cross-functional teams. Able to balance speed, quality, and clarity in a fast-evolving AI environment. Experience & Requirements 7+ years in software engineering (senior-level). Experience with real-time apps, data-heavy UIs, or AI-driven products is a strong plus. Fluent in Spanish and English. You're a nice person — no ego, no toxicity, good vibes only. Wealth/financial knowledge is a bonus, not a requirement. If this sounds like you, don't worry if you don't check every single box—we'll support your growth along the way. What we offer A full-time, permanent contract. We offer what we think is fair compensation. A cool office between Sants Estació and Plaça Espanya with stunning views of Barcelona. Flexible working hours and hybrid work options. Paid day off on your birthday. Weekly fresh fruit, coffee, and tea on tap. Friday happy hours after our all-hands meetings (totally optional, of course). Team-building events to bond and have fun. Health insurance and flexible compensation with Alan. A digital canteen, thanks to Nora Real Food, subsidised at 50%. A yearly training budget to keep growing. The hiring process Send us your CV, cover letter, etc. You'll have a chat with our People Operations Specialist, Nicolás Guilarte. A meeting with our Head of AI, Hector BorobiaA technical discussion meeting with some of Flanks team members. Any extra meetings you (or we) might need to iron out any questions. We send you an offer We aim to keep things moving fast—ideally wrapping things up in one to four weeks. If this sounds like a good fit for you, we'd love to hear from you. Don't hesitate to send us your CV and/or cover letter. At Flanks, we believe in fostering diversity and inclusion across everything we do. We're proud to be an equal opportunity employer, and we welcome all applications regardless of race, religion, gender, age, or disability status. Additionally, we have an Equality Plan in place to ensure fairness and inclusivity in all our policies and practices.