ppAt JuliusBaer, we are seeking an experienced Senior Frontend Developer with deep expertise in React.js to design and implement scalable, secure, and user‑centric financial applications. You will play a key role in shaping modern, high‑performance web applications that meet the evolving needs of private banking clients globally. /ph3Responsibilities /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 /ulh3Qualifications /h3ulliBachelor's degree in Computer Science, Engineering, or 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 (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 (Webpack5), 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)
🏢 Bank Julius Bär Ltd.
📍 Madrid