Senior Applied AI Engineer (f/m/d)

United States Digital Space LLC; Bochum; Vor Ort; EUR 90.000 - 140.000; Vollzeit

Zusammenfassung

Sonar is hiring an AI Engineer to drive internal AI transformation, building end-to-end AI agents and full-stack tools that automate complex business processes. You will shape the core AI tech stack, orchestration frameworks, and RAG pipelines, while ensuring governance and data privacy across departments.

You will lead architecture for agentic workflows, mentor junior engineers, and Collaborate with cross-functional teams to deliver scalable, secure AI solutions in Bochum.

Qualifikationen

• 10+ years of full-stack development experience.
• Proven experience building autonomous AI Agents.
• Strong cloud deployment experience on major platforms.

Aufgaben

• Design and build end-to-end AI agents and full-stack apps to automate complex business processes.
• Maintain core AI tech stack including orchestration frameworks and RAG pipelines.
• Oversee cloud deployment for high availability and performance.
• Contribute to AI transformation and identify automation opportunities.
• Establish governance, security and best practices for AI development and data privacy.
• Lead internal tools development from backend to frontend and mentor junior engineers.

Kenntnisse

Full-Stack Development

AI Agent Mastery

Cloud Platform

LangChain / AutoGen

Prompt Engineering

Mentorship

Tools

LangChain

AutoGen

CrewAI

Pinecone

Weaviate

Jobbeschreibung

Who is Sonar?Sonar is driving the future of agent-centric software development. As the leader in AI code verification and governance, we solve a critical problem: ensuring that software generated by AI-assisted developers or autonomous agents is reliable, secure, and maintainable.

Integrating seamlessly with Claude Code, Codex, Cursor, GitHub Copilot, Gemini, and Devin, we help over 75% of the Fortune 100 build trusted, reliable, compliant software. Customers who use Sonar are 44% less likely to report an outage due to AI-generated code.

We believe code verification is the critical missing link in the Agent-Centric Development Cycle (AC/DC). Industry giants like Nvidia, ServiceNow, Booking.com, Goldman Sachs, AstraZeneca, and Ford Motor Company count on us to provide independent, explainable, consistent review and governance of their AI-generated code via products like:

• SonarQube: The world’s leading AI code review and verification platform.
• SonarQube Foundation Agent: Currently topping the leaderboards for agentic software repair.
• SonarSweep & Sonar Context Augmentation: Providing the enterprise-grade context and constraints agents need to be truly effective.

Our team operates across global hubs in Austin, Bochum, Dubai, Geneva, London, Singapore, Tokyo, and Washington D.C. We move with a mindset we call CODE:

• Committed to our customers and community.
• Obsessed with quality.
• Deliberate in our decisions.
• Effective as one team.

With over $400M in revenue and profitable, fast-paced growth, we are building the backbone of the AI software revolution. If you’re hungry to have an impact, want to build at a fast pace, and ready to work at the forefront of AI, we want to hear from you.

Position description

the company is looking for a passionate AI Engineer who will be a driving force in our internal operations. You will play a central role in Sonar's AI transformation, applying your expertise to solve internal business operation problems, automate complex processes, and amplify productivity across departments using cutting-edge AI agents and full-stack tools. Your work will directly enhance our operational efficiency and strategic agility.What you will do

What you will do

• Design & Develop: Architect and implement end-to-end AI Agents and full-stack applications that automate complex business processes.
• Foundational Engineering: Build and maintain the core AI tech stack, including agent orchestration frameworks, vector database integrations, and RAG (Retrieval-Augmented Generation) pipelines.
• Cloud Orchestration: Oversee the deployment and management of scalable AI services, selecting and adapting infrastructure to meet stringent requirements for high availability, performance, and efficiency.
• Strategic Transformation: Act as a key contributor to Sonar’s AI transformation, identifying high-impact opportunities for agentic automation across different departments.
• Governance & Ethics: Collaborate with cross-functional teams to establish governance, security protocols, and best practices for AI development and data privacy.
• Full-Stack Ownership: Manage the entire lifecycle of internal tools, from backend logic and LLM prompt engineering to intuitive frontend interfaces for internal users.
• Mentorship: Guide junior engineers and contribute to a culture of technical excellence in AI and automation.

Experience and qualifications

• Full-Stack Expertise: 10+ years of professional experience in full-stack development (e.g., Python,Node.js, React, or similar modern stacks).
• AI Agent Mastery: Proven experience developing and deploying autonomous AI Agents using frameworks such as LangChain, AutoGen, CrewAI, or similar.
• Automation Roots: A strong background in traditional automation development (e.g., scripting, workflow engines, or RPA) prior to the LLM era, demonstrating a deep understanding of logic-based systems.
• Cloud Proficiency: Hands-on experience architecting and deploying production-grade applications on any major cloud platform (AWS experience is highly recommended).
• Architectural Vision: Deep understanding of the specific architectures required for agentic workflows, including state management, tool-calling, and memory systems.
• Data & AI Skills: Experience with vector databases (e.g., Pinecone, Weaviate), fine-tuning (optional but preferred), and advanced prompt engineering.
• Collaborative Mindset: Ability to work with non-technical stakeholders to define governance and translate business needs into technical requirements.
• Growth Mindset: A passion for staying at the forefront of AI research and a desire to continuously evolve your skill set.

Salary range

Additional comments

This role is based in Bochum. We are unable to consider candidates unwilling to be in Bochum, but we are willing to relocate the right candidate.

In-office culture

We're intentional about this. We believe the best teams are built in the room together. Three anchor days — Mondays, Tuesdays, and Thursdays — create the collaboration rhythm that makes a hub office worth having.

Candidates need to be genuinely based in the location the role is posted — if that's not where you are today, we're happy to support relocation for the right person.

We value diversity, equity, and inclusion

At Sonar, we believe that our diversity is our strength. We are a global company that values and respects different backgrounds, perspectives, and cultures. We are committed to fostering a diverse and inclusive work environment where everyone feels valued and empowered to contribute their best. We are proud to be an equal opportunity employer and welcome all qualified applicants, regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

If you need any accommodation, please reach out to us at All offers of employment at Sonar are contingent upon the results of a comprehensive background check and reference verification conducted before the start date.