Staff Architect (f/m/d)

Webhosting; Karlsruhe; Vor Ort; EUR 120.000 - 180.000; Vollzeit

Zusammenfassung

IONOS is seeking an Architect to define the technology roadmap and standards for a distributed AI-enabled platform serving SMBs. You will lead architectural decisions and drive end-to-end ownership, balancing speed to value with enterprise engineering discipline.

You will mentor teams, evaluate new AI frameworks, and ensure robust guardrails and observability in a fast-moving space, shaping the next generation of digital infrastructure for our customers.

Qualifikationen

• Hands-on mastery of modern AI (LLMs, multimodal) and agentic tech.
• Strong understanding of multi-agent system architecture and guardrails.
• Proven ability to translate fuzzy user needs into robust technical ecosystems.

Aufgaben

• Architectural Design: design and evolve architecture for large-scale distributed systems.
• Technology Evaluation: select optimal tech stack including AI foundational platforms and agent builders.
• System Integration: define interfaces for agent interaction with Human-in-the-Loop checks.
• Technical Leadership: guide development teams and ensure architectural standards are followed.
• Cross-Functional Collaboration: align with other teams on requirements and interfaces.
• Knowledge Systems: design agent knowledge components, including RAG and vector databases.
• Stay Ahead of the Curve: track AI advancements and adapt stack accordingly.

Kenntnisse

Deep AI

Agentic Tech

Architectural leadership

Tools

LangGraph

CrewAI

AutoGen

Jobbeschreibung

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

We’re launching a brand-new AI Agent platform that will become the digital assistant of choice for small- and medium-businesses (SMBs). This platform features various intelligent, autonomous agents handling tasks from customer interactions – like reservations and support – to strategic initiatives like marketing campaigns and sales. You’ll be instrumental in developing the core application that enables these agents to operate, learn, and collaborate, ultimately driving significant value for our customers.

This pivotal role involves defining the technology roadmap, architectural standards, and technical direction for a large-scale, distributed system. If you’re passionate about applying cutting-edge AI and agentic technologies to solve real-world business challenges, join our motivated team at the forefront of modern product development.

This role requires an architect who is deeply immersed in the fast-moving AI field and possesses a comprehensive mastery of Deep AI and Agentic Technology. The ideal candidate must focus on solving real customer problems by working backwards from the user to the tech stack, while successfully embracing ambiguity as an opportunity in a newly defined space. In this role, you will be expected to display:

• Deep AI & Agentic Technology Mastery: Requires practical, hands-on understanding of modern AI (LLMs, multi-modal, tool use), multi-agent systems architecture, continuous tracking of emerging frameworks (like LangGraph, CrewAI, AutoGen), and embedding responsible AI guardrails and observability into the architecture.
• User-Centric Architecture: Focuses on solving real customer problems by starting from SMB operator realities and working backwards to translate fuzzy needs into precise technical ecosystems, validating assumptions via discovery sprints, and articulating technical trade-offs based on user impact.
• Thriving in Ambiguity: Mandates a strong bias for action (prioritizing prototypes and speed-to-value), full end-to-end ownership of outcomes, constructive problem-solving with early risk mitigation, and balancing startup velocity with enterprise engineering discipline for scalable production systems.

Tasks

• Architectural DesignDesign and evolve the architecture for a large-scale, distributed system capable of serving extensive customer bases and processing massive data volumes.
• Technology EvaluationEvaluate and select the optimal technology stack, focusing on modern web technologies and AI foundational platforms, including agent workflow platforms and builder frameworks.
• System IntegrationDefine interfaces to enable seamless agent interaction, information sharing, and autonomous action triggering, incorporating necessary Human-in-the-Loop checks.
• Technical LeadershipAct as the subject matter expert on system design, providing technical guidance to development teams and ensuring adherence to architectural standards.
• Cross-Functional CollaborationPartner with various teams across the organization to clarify technical requirements and establish architectural standards and interfaces.
• Knowledge SystemsDesign components for agent knowledge, including strategies for Retrieval-Augmented Generation (RAG) and the use of vector and distributed databases.
• Stay Ahead of the CurveContinuously research and track advancements in the AI domain, with a specific focus on agentic AI, to maintain a cutting-edge technology stack.

About IONOS

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a ‘one-stop shop’ for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.

We value diversity and welcome all applications – regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.