Founded in Düsseldorf, we’ve grown into a fast-moving team of engineers, product minds, and builders driven by curiosity and precision. 

We value speed, ownership, and quality, but also team spirit, flexibility, and foresight — our five FoxBase core values that shape how we build, ship, and grow. 

Our customers include some of Europe’s most innovative industrial and technology leaders. Together, we’re redefining what “AI-driven sales” means in highly regulated environments — combining enterprise-grade security with modern AI orchestration. 

We’re looking for a Software Engineer AI/RAG, who’s passionate about building production-grade AI systems. Someone who thrives on solving complex technical problems, thinks in systems, and ships solutions that are both elegant and efficient. 

This isn’t just about writing code. It’s about designing the backbone of AI systems that European enterprises can trust. 

• Own and evolve our Retrieval-Augmented Generation (RAG) stack – from data ingestion and indexing to LLM integration and feedback loops.
• Build and optimize pipelines that combine vector databases, embeddings, and re-ranking models for reliable, explainable outputs.
• Design monitoring and quality assurance frameworks to ensure consistent, measurable AI performance.
• Collaborate closely with product and development teams to translate business complexity into scalable, maintainable architectures.
• Manage AWS infrastructure using Terraform and ensure cost-efficient, secure, and highly available deployments.
• Support our continuous improvement process by experimenting with new models, frameworks, and architectural patterns.
• Mentor junior engineers and contribute to a culture of learning, responsibility, and craftsmanship

• 2+ years of experience in software engineering — ideally in Python-based SaaS or AI systems.
• Deep knowledge of LLM and RAG concepts (retrieval pipelines, embeddings, prompt orchestration, evaluation).
• Solid understanding of PostgreSQL and data modeling; experience with Qdrant is a plus.
• Hands-on experience with AWS (RDS, S3, Lambda) and Infrastructure as Code (Terraform).
• Strong debugging and observability mindset, you care about uptime, latency, and real-world performance.
• Familiarity secure architectures and GDPR-compliant environments.
• Curiosity and initiative, you love learning, sharing, and applying new concepts to improve our platform.
• Fluent in English (German is a plus, but not required).

• Experience building enterprise AI applications (RAG, knowledge bases, LLM integrations).
• Background in cloud cost optimization, observability (Prometheus, Grafana), or performance engineering.
• Contributions to open-source AI tools or frameworks.
• Interest in explainable AI, evaluation pipelines, or model observability tooling.

• Backend Framework: 
  • FastAPI for high-performance APIs and services
• Data Modelling & Validation: 
  • Pydantic and Pydantic-AI for structured LLM interactions and schema enforcement
• Cloud & Infrastructure:
  • AWS Lambda (serverless microservices) integrated with API Gateway
  • Terraform for infrastructure provisioning and deployment automation
• Data & Workflow Orchestration: 
  • Apache Airflow for managing and scheduling data pipelines
• Databases:
  • Qdrant (vector database) for semantic search and RAG systems
  • PostgreSQL for structured relational data
• Large Language Models: 
  • Integration with multiple LLM providers (OpenAI, Bedrock, etc.) for retrieval-augmented and agentic applications - model-agnostic and vendor-flexible
• Visualisation & Monitoring:
  • Plotly Dash for interactive dashboards and data visualizations
  • Grafana for system telemetry, metrics, and performance monitoring

• Real impact: Your work powers AI systems used by leading European enterprises in chemicals, construction, and machinery.
• End-to-end ownership: you’ll design, build, and ship your own features, from concept to production.
• AI that matters: We don’t build hype demos; we build trusted, explainable AI that improves real business decisions.
• Freedom & flexibility: Work remotely or from our Düsseldorf HQ, we trust you to manage your time.
• Learning culture: Dedicated budget for conferences, courses, and coaching.
• Strong team spirit: We meet on a weekly or monthly basis in our Düsseldorf HQ for creative exchange and to stay connected. We take work seriously, but not ourselves — think quiz nights, good music, GeoGuessr, and darts.
• Compliance & security mindset: Build with peace of mind — in a GDPR and ISO 27001-certified environment.

At FoxBase, engineers are problem-solvers, not just coders. We build with purpose — connecting data, AI, and people to deliver measurable results.  

We move fast, stay curious, and design with compliance and performance in mind. 
We keep things pragmatic — shipping high-quality, cost-efficient, and scalable solutions while continuously improving the product with measurable increments. 

• Built one of the first enterprise-ready RAG frameworks tailored for regulated B2B environments
• Delivered AI Product Experts for industry leaders in telecomunications, chemicals, and construction
• Integrated AI quality assurance and feedback loops that keep models explainable and auditable
• Established a fully GDPR-compliant infrastructure, hosted in the EU and certified to ISO 27001 standards
• And built a team culture that loves solving hard problems — with good music, quiz nights, and the occasional game of darts.

We’re in a defining moment for AI in B2B sales. Now we’re looking for builders, engineers, and creators who want to shape how businesses sell and support their customers with intelligent, transparent, and controllable AI. 

If you’re ready to build the most reliable AI Sales Platform in Europe, come join us. 

Let’s make complex sales simple together.