ppAt Julius Baer, we celebrate and value the individual qualities you bring, enabling you to be impactful, to be entrepreneurial, to be empowered, and to create value beyond wealth. Let’s shape the future of wealth management together. /ppAt Julius Baer, we empower our clients through innovative digital solutions delivered with precision and integrity. As part of our growing technology team, you will play a key role in shaping modern, high-performance web applications that meet the evolving needs of private banking clients globally. /ppWe are seeking an experienced Senior Frontend Developer with deep expertise in React.js to drive the design and implementation of scalable, secure, and user-centric financial applications. In this role, you will lead frontend innovation while mentoring peers and contributing strategically to architecture and delivery excellence. /ph3YOUR CHALLENGE /h3ulliDesign, develop, and maintain responsive, accessible, and high-performing frontend modules using React, TypeScript, and modern JavaScript/HTML/CSS /liliCollaborate closely with product owners, UX designers, backend developers, and QA teams to translate business requirements into efficient, testable, and production-ready features /liliChampion software engineering best practices—including clean code principles, unit and integration testing (with Jest, React Testing Library), and automated CI/CD pipelines to ensure quality and stability /liliLead technical discussions and contribute to architectural decisions around state management (Redux, Context API), component design, routing, performance optimisation, and frontend security /liliBuild reusable UI components and design systems to promote consistency and accelerate development across multiple platforms /liliConduct thorough code reviews to uphold coding standards, accessibility compliance (WCAG),



and performance benchmarks /liliDiagnose and resolve complex frontend issues related to rendering, memory leaks, bundling size, or browser compatibility /liliPromote agile and DevOps practices by integrating feedback loops, monitoring tools, and observability into frontend workflows /liliMentor junior engineers through pair programming, constructive feedback, and knowledge-sharing sessions on frontend trends, patterns, and secure development practices /liliStay current with emerging technologies and industry advancements in frontend ecosystems to continuously improve development processes and application capabilities /li /ulh3YOUR PROFILE /h3ulliBachelor's degree in Computer Science, Engineering, or a related field; advanced degree preferred /liliMinimum of 6 years of professional software development experience, with at least 4 years focused on React.js-based frontend development /liliStrong proficiency in React, TypeScript, ES6+, Webpack, and ecosystem libraries (e.g., Redux, React Router, Axios, Styled Components) /liliSolid understanding of core web technologies: DOM manipulation, event handling, RESTful APIs, asynchronous programming, and cross-browser compatibility /liliDemonstrated experience with testing frameworks (Jest, Cypress, React Testing Library), version control (Git), and CI/CD integrations /liliFamiliarity with micro-frontend architectures, module federation (Webpack 5), and monorepo setups (Nx, Turborepo) is highly desirable /liliKnowledge of frontend performance optimisations (code splitting, lazy loading, caching strategies) and SEO considerations for SPAs /liliUnderstanding of security practices relevant to client-side development, including XSS mitigation, CSP policies, and secure token handling /liliProven ability to work independently and collaboratively within agile teams; strong problem-solving and communication skills /li /ul /p #J-18808-Ljbffr

📌 Senior Frontend Developer – React 100% (f/m/d) (Madrid)
🏢 Julius Baer
📍 Madrid