Senior Frontend Developer (m/w/d)

🚀 About usBlockbrain is an AI-driven B2B SaaS platform that elevates human knowledge with responsible AI. We empower organizations to create custom GenAI systems that not only help teams access information and knowledge faster and more accurately than ever before, but also leverage that knowledge to automate a wide range of knowledge work - on our no-code platform or fully customizable via our API. Led by an experienced team of serial entrepreneurs and technology experts, Blockbrain brings decades of expertise in AI, B2B SaaS, big data, process automation, and data security. About the RoleWe are seeking a highly motivated and entrepreneurial Senior Frontend Developer to join our dynamic team. This role is pivotal in crafting high-performance, user-centric interfaces within our TypeScript-based technology landscape, with a strong emphasis on Next.js and React for building scalable frontend applications. You'll collaborate on integrations with our backend services (e.g., Hono, Node.js, Nest.js, Python with FastAPI) and contribute to AI-driven features like knowledge graph visualizations. As a senior developer, you'll apply advanced frontend engineering principles to ensure maintainable, accessible, and optimized user experiences, while working in a fast-paced environment that includes DevOps practices and cloud deployments. The ideal candidate has deep TypeScript expertise and thrives in creating innovative, responsive UIs that drive user engagement and business impact. 📝 ResponsibilitiesFrontend Development: Design, develop, and maintain scalable frontend applications using Next.js and React, focusing on server-side rendering, static site generation, and dynamic client-side interactions. Implement web components for reusable, modular UI elements.TypeScript and Architecture: Leverage deep TypeScript knowledge to architect robust frontend systems, applying design principles (e.g., component composition, hooks patterns) for modularity, scalability, and testability.UI/UX Optimization: Enhance user interfaces with responsive design, accessibility standards (e.g., WCAG), performance optimizations (e.g., lazy loading, code splitting), and modern CSS approaches (e.g., Tailwind CSS, CSS-in-JS like Styled Components).State Management and Testing: Manage complex application state using tools like Redux or Zustand, and ensure quality through unit/integration testing with Jest and React Testing Library.Integrations and Collaboration: Integrate frontend with REST APIs, GraphQL endpoints, and backend services, while collaborating on AI features like vector search visualizations and knowledge graph interfaces. Contribute to cross-functional efforts, including DevOps for deployments on Kubernetes/AWS.Innovation and Best Practices: Experiment with emerging frontend technologies (e.g., Remix for enhanced routing) to improve user experience, and maintain clean, maintainable codebases through refactoring and code reviews. 🎓 Required SkillsExperience: Minimum 5-8 years in frontend development, with proven seniority in leading complex UI projects from conception to production.Technical Stack: Expertise in Next.js and React; deep proficiency in TypeScript for type-safe, scalable code; experience with web components for modular design.Frontend Fundamentals: Strong knowledge of HTML5, CSS3, and JavaScript/ESNext; hands-on experience with responsive design, accessibility (a11y), performance tuning, and cross-browser compatibility.Tools and Practices: Proficiency in state management (e.g., Redux, Zustand), testing frameworks (e.g., Jest, React Testing Library), and build tools (e.g., Webpack, Babel).Integrations: Experience integrating with APIs (REST/GraphQL) and collaborating on full-stack systems, including basic familiarity with backend concepts for seamless handoffs.Software Engineering Principles: Deep understanding of frontend design patterns (e.g., higher-order components, context API), clean architecture, and strategies for maintainability and optimization. Preferred SkillsAdditional Frameworks: Familiarity with Remix or other modern frameworks (e.g., Vue.js, Svelte) for diverse frontend approaches.Advanced Extras: Experience with animations (e.g., Framer Motion), progressive web apps (PWAs), SEO best practices, or UI/UX design tools (e.g., Figma) to enhance frontend innovation.Entrepreneurial Mindset: An independent problem-solver who enjoys contributing to team initiatives and driving user-focused innovations.Resilient and Goal-Oriented: You set ambitious goals and have a track record of achieving them in challenging environments.Courageous Innovator: Eager to propose new ideas, experiment with emerging tech, and learn from failures.Pragmatic Executor: Bias for action, with excitement about rapid iteration and delivering value quickly.Communicative: Confident in speaking up, collaborating cross-functionally, and communicating technical concepts clearly. Fluency in English is required; German is a plus. 💎 What we offerBe part of a fast-growing company at the forefront of GenAIwith key responsibilities from day one.Growth Opportunities: Significant opportunities for professional growth and development. Work with successful serial founders and tech experts.Hybrid Work: Flexible work structure.Culture - A flat hierarchy with unfiltered feedback loops.International - A global environment with regular team events and off-sites.Reward: Competitive compensation package with upside potential. Blockbrain is an equal opportunity employer. We celebrate diversity and are committed tocreating an inclusive environment for all employees.