Senior UI Engineer (m/f/d) | Legal AI Tech Start-up | Full Remote

Job title:

Senior UI Engineer (m/f/d) | Legal AI Tech Start-up | Full Remote

Company:

Xayn AG

Job description

Our offer for youAs an UI Engineer, you will play a pivotal role in shaping and enhancing the user experience of our AI-driven legal solutions. Our B2B solutions is helping especially professionals, who work in law research and legal advising. You will work closely with our design, engineering, and product teams to develop and optimize intuitive, responsive, and scalable UI components, bringing innovation and efficiency to the forefront of our product offerings.YOUR TEAMYou will join our Tech Team of around 10 people, including: 3 Frontend Engineers led by Aurélien as well as 1 UI Designer, 4 AI Engineers as well as Backend and DevOps Engineers.YOUR HIRING MANAGERAurélien leads the Frontend Engineering Team. With extensive experience in software development and a hands-on, pragmatic leadership style, Aurélien values independent thinking and efficient solutions that drive real-world impact.OUR BENEFITS

• Working hours: Flexible working hours: Full-time (32- 40h/week).
• Vacation: 26 days + December 24th & 31st off
• Remote: 100% remote work possible (given a German residence), other countries upon request
• Discounts: e.g. Urban Sports Club Membership
• Equipment: Laptop (Lenovo or Mac), second screen, keyboard etc.

Your responsibilities

• Develop UI Components: Using React, TypeScript, hooks, and responsive design
• Performance Optimization: Implement code splitting, lazy loading, and caching techniques
• Design Implementation: Pixel-perfect execution from Figma designs with Tailwind and animations
• Backend Integration: Connect APIs using RESTful services, integrating WASM solutions for encrypted communication
• Testing & Debugging: Write tests using Vitest ensuring clean, functional code
• End-to-End Responsibility: From design handover to backend integration, ensuring APIs fetch the right data
• Tech Stack Optimization: Streamline tooling, optimizing the codebase for better scalability & clean code best practices

Our Tech Stack

• Programming: React, Native JavaScript, TypeScript & Node.js
• Testing: e.g. VItest
• Ticket System: Atlassian JIRA
• Repository: Github
• CI/CD System: GitHub Actions
• Documentation: Confluence
• Communication: Slack
• Office Application: MS365

About you

• Working Permission: Germany
• Language: English (fluent)
• Full development lifecycle: Worked across the full development lifecycle, from design to backend connection with React, TypeScript, Hooks, and Context API, HTML5, CSS3, Web Components
• Backend integration experience: Node.js, API design, authentication mechanisms (JWT, OAuth & Keycloak)
• Delivery: Delivered results in evolving fast-paced startup environments
• Technical Debt: Optimized technical debt and implemented best coding practices in previous roles
• Optional: Familiarity with tools such as Webpack, Docker, Git, and CI/CD pipelines

Sounds good?
Then, we look forward to receiving your CV via our online application form.About usThe AI Startup Xayn develops , Europe’s leading sovereign Legal AI. The legally compliant and competent AI helps legal professionals to research legal issues and review, and draft legal documents. The GDPR-compliant Legal AI meets the high professional and data protection requirements for lawyers (§ 203 Penal Code, § 43e Federal Lawyers’ Act) and is certified according to ISO 27001, 9001, 27018, 27017, 42001, and BSI C5. The product version Beck-Noxtua is based on the exclusive data of Germany’s leading legal publisher and Germany’s largest business law firm CMS.Emerging from a 2017 research project by Dr. Leif-Nissen Lundbæk and Professor Dr. Michael Huth at Oxford University and Imperial College London, the Berlin-based Legal-Tech company, formerly known as Xayn, boasts extensive experience in developing highly efficient GDPR-compliant AI solutions. Strategic partners, including Germany’s leading legal publisher , the High-Performance Computing specialist , Germany’s largest business law firm and co-initiator of the Legal AI Noxtua , as well as the world’s largest law firm , have invested a total of € 80.7 million in the German startup as part of its Series B funding round.

Expected salary

Location

Berlin-Mitte

Job date

Thu, 19 Jun 2025 22:10:45 GMT

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