Senior UX Designer (f/m/d) AI Agent Conversational Experience

📍 Job Overview

Job Title: Senior UX Designer (f/m/d) AI Agent Conversational Experience

Company: IONOS DE

Location: Karlsruhe, Baden-Württemberg, Germany

Job Type: Full-time

Category: UX/UI Design & Product Experience Operations

Date Posted: August 6, 2026

Experience Level: 5-10 years

Remote Status: Hybrid

🚀 Role Summary

• Spearhead the user experience design for a groundbreaking AI Agent platform, focusing on conversational interfaces and intelligent assistant ecosystems for small-to-medium businesses.

• Translate complex business logic into intuitive, elegant, and efficient user interfaces, ensuring a seamless and user-friendly interaction with advanced AI capabilities.

• Drive the end-to-end design process, from conceptualization and user journey mapping to rapid prototyping, high-fidelity mockups, and iterative refinement based on user testing.

• Champion a consistent and accessible design language by contributing to and maintaining robust design systems, ensuring scalability and brand cohesion across the product suite.

📝 Enhancement Note: This role is positioned within a nascent AI platform initiative, requiring a Senior UX Designer to not only apply established design principles but also to innovate in the emerging field of conversational AI and agentic workflows. The emphasis on "AI Agent Conversational Experience" and "multi-agent system workflows" suggests a need for a designer who can think about complex interaction models beyond traditional GUI design, influencing the core product strategy.

📈 Primary Responsibilities

• Conceptualize and Refine User Journeys: Design and iterate on comprehensive user journeys for the AI Agent platform, with a strong emphasis on conversational flows and automated task completion to enhance user satisfaction and operational efficiency.

• Develop High-Fidelity Prototypes & Mockups: Swiftly translate product requirements and user insights into interactive, high-fidelity prototypes and production-ready mockups, utilizing industry-leading design tools to accelerate the agile development cycle.

• Craft Intuitive UI/UX Interfaces: Create visually compelling, accessible, and interactive user interface elements that ensure a consistent and engaging experience across the web-based platform, adhering to best practices in modern UI/UX design.

• Facilitate Cross-Functional Collaboration: Actively partner with product managers, engineers, and stakeholders to provide clear design documentation, participate in sprint planning, and ensure design feasibility and alignment throughout the development lifecycle.

• Conduct Rigorous User Testing & Feedback Integration: Plan and execute usability testing sessions, gather qualitative and quantitative user feedback, and systematically analyze insights to drive design improvements and ensure the product meets user needs and behavioral patterns.

• Contribute to and Maintain Design Systems: Play a key role in developing and evolving the product's design system, ensuring design consistency, promoting rapid iteration, and maintaining a cohesive visual and interaction language across all features.

📝 Enhancement Note: The responsibilities highlight a hands-on role requiring deep involvement in the entire product development lifecycle, from initial ideation to implementation and ongoing refinement. The emphasis on "streamlined, automated workflows" and "agentic workflows" indicates a need for designers who can think strategically about how AI can automate and simplify complex business processes for SMBs.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Human-Computer Interaction (HCI), Interaction Design, Graphic Design, Computer Science, or a related field is typically expected for senior-level design roles, providing a foundational understanding of design principles and user psychology.

Experience: Over 5 years of dedicated experience in User Experience (UX), User Interface (UI), and broader Design roles, with a proven track record in complex and modern digital product development, specifically beyond marketing websites.

Required Skills:

• Extensive UX/UI Design Expertise: Demonstrated ability to design complex, feature-rich, and visually engaging web-based applications.

• Advanced Prototyping & Wireframing: Proven skill in creating detailed wireframes, user flows, and high-fidelity interactive prototypes.

• Proficiency with Leading Design Tools: Mastery of industry-standard UX/UI design and prototyping software such as Figma, Sketch, Adobe XD, and potentially Canva for broader asset creation.

• Design System Development & Management: Experience in creating, contributing to, and maintaining comprehensive design systems to ensure consistency and efficiency.

• Usability Testing & Research: Strong capabilities in planning, conducting, and analyzing usability tests and user research to inform design decisions.

• Agile Development Collaboration: Experience working effectively within agile development teams, participating in sprint planning, and providing actionable design documentation.

• Cross-Functional Communication: Excellent communication and collaboration skills to effectively partner with product managers, engineers, and stakeholders.

• Adaptability & Fast-Paced Environments: Proven ability to manage multiple design projects simultaneously, meet tight deadlines, and adapt to evolving requirements in a dynamic work setting.

Preferred Skills:

• Deep Understanding of Agentic Workflows: Insight into modern trends in automation, Artificial Intelligence (AI), and multi-agent system workflows, with a focus on conversational AI.

• Experience with AI/ML Product Design: Familiarity with designing user experiences for AI-powered products or services.

• Conversational UX Design: Specific experience designing conversational interfaces, chatbots, or virtual assistants.

📝 Enhancement Note: The "Over 5 years of experience" is a baseline. Given the "Senior" title and the complex nature of AI agent conversational experience, candidates with 7-10 years of relevant experience, particularly those who have led design initiatives for complex applications or innovative technology, will be highly competitive. The emphasis on "Agentic Workflows" and "multi-agent system workflows" is a significant differentiator, suggesting a preference for candidates who can grasp and design for sophisticated AI interactions.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate End-to-End Design Process: Showcase a minimum of 2-3 detailed case studies illustrating your complete UX/UI design process, from initial problem definition and user research to ideation, wireframing, prototyping, user testing, and final design implementation.

• Highlight Complex Web Application Design: Include examples of complex, feature-rich web applications you've designed, emphasizing your ability to organize information, create intuitive navigation, and manage intricate user flows.

• Showcase Tool Proficiency: Clearly indicate the primary design and prototyping tools used for each project (e.g., Figma, Sketch, Adobe XD) and demonstrate your mastery through the quality and interactivity of your prototypes.

• Illustrate Design System Contributions: If applicable, provide examples of your involvement in creating or contributing to design systems, showcasing components, style guides, and their impact on design consistency and efficiency.

• Quantify Impact Where Possible: Whenever feasible, use metrics to demonstrate the impact of your design solutions, such as improvements in user satisfaction, task completion rates, conversion rates, or reduction in support queries.

Process Documentation:

• User Flow Diagrams: Provide clear diagrams illustrating complex user journeys and task flows, demonstrating your ability to map out intuitive and efficient user paths.

• Wireframes and Low-Fidelity Prototypes: Include examples of wireframes and low-fidelity prototypes that effectively communicate layout, functionality, and information architecture.

• High-Fidelity Mockups & Interactive Prototypes: Present polished, high-fidelity mockups and interactive prototypes that showcase visual design, interaction details, and the overall user experience.

• Usability Testing Reports/Summaries: Briefly outline your approach to usability testing and present key findings and how they led to design iterations and improvements.

📝 Enhancement Note: For this role, a portfolio that specifically addresses conversational interfaces, AI interactions, or complex workflow automation will be highly advantageous. Candidates should be prepared to discuss their design decisions in the context of AI capabilities and limitations, and how they ensure user trust and transparency in AI-driven systems.

💵 Compensation & Benefits

Salary Range: For a Senior UX Designer with 5-10 years of experience in Karlsruhe, Germany, the estimated annual gross salary range is typically between €65,000 and €85,000. This estimate is based on industry benchmarks for senior design roles in Germany, considering the cost of living in a major city like Karlsruhe and the specific demands of designing for an AI platform.

Benefits:

• Hybrid Working Model: Offers a blend of remote and in-office work, promoting flexibility and work-life balance.

• Flexible Working Hours: Trust-based working hours allow for personal scheduling flexibility, accommodating individual needs and peak productivity times.

• Subsidized Canteen & Free Drinks: On-site amenities that contribute to employee well-being and reduce daily expenses.

• Modern Office Space: A well-equipped and contemporary workspace located with excellent transport connections, facilitating easy commutes.

• Employee Discounts: Opportunities for savings on various activities and company products, adding value beyond base compensation.

• Employee Events: Regular social and professional gatherings like summer/winter parties and workshops, fostering team cohesion and a positive company culture.

• Extensive Training & Development: Access to numerous opportunities for professional growth, skill enhancement, and career advancement