Software Engineer Full-Stack (m/w/x)

AI that makes complex B2B sales simple.

With FoxBase’s AI Sales Advisor platform, companies can set up their own AI Product Expert, built for the real world of enterprise and “Mittelstand” companies.

We help companies turn complex product portfolios and consultation-heavy sales into fully digital, AI-powered experiences without compromising on quality, compliance, or control.
Our platform combines retrieval-augmented generation (RAG) with proven selection, configuration, and calculation technology to deliver precise, explainable, and compliant answers, across websites, chatbots, and digital channels.

Unlike most AI tools built for big tech budgets, FoxBase empowers every company to deploy high-impact, trustworthy AI that meets GDPR and ISO 27001 standards from day one.
We make cutting-edge AI accessible, secure, and enterprise-ready - strengthening the competitiveness of Germany and Europe in the new AI era.

Who we are

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.

Who are we looking for

We’re looking for a Software Engineer Full-Stack, 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. .

What you’ll do

• Ship production value every week: features, improvements, and measurable fixes with predictable throughput.
• Contribute directly to quarterly OKRs with clear milestones and measurable results.
• Own medium-complexity areas end-to-end (API + database + UI touchpoints) with minimal guidance.
• Improve codebase health through pragmatic refactoring, standards, and thoughtful architecture evolution.
• Build with a strong product mindset: clarify the “why”, propose smart trade-offs, and iterate post-release based on outcomes.
• Deliver changes with appropriate tests (unit/integration) and reduce regressions through disciplined engineering practices.
• Strengthen reliability: debugging, incident hygiene, and improving observability (logging/metrics/alerts).
• Collaborate with Product, Customer Success, and Sales to translate real-world business complexity into scalable, maintainable solutions.
• Contribute to a team culture of transparency, low ego / high standards, and proactive unblocking.

What you’ll bring

• 3+ years of experience as a software engineer in a product environment (B2B SaaS is a plus).
• Strong hands-on experience with TypeScript / Node.js and building maintainable services and APIs.
• Solid experience with modern frontend development (ideally Angular and/or Vue).
• Good understanding of relational data modeling and PostgreSQL; experience with ORMs (e.g., TypeORM) is a plus.
• Strong quality mindset: testing, code reviews, maintainability, and CI/CD discipline.
• Ownership mentality for production: you care about uptime, performance, and fast root-cause analysis.
• Excellent communication and collaboration skills; you keep stakeholders aligned and risks visible.
• 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).

Nice to have

• Experience improving engineering quality metrics (test flakiness, coverage in critical modules, lint/type strictness, build times, CI reliability).
• Infrastructure-as-Code exposure (e.g., Terraform) and practical observability experience (e.g., Grafana).
• Experience in regulated / compliance-minded environments (GDPR, ISO-aligned processes).
• A track record of simplifying complex workflows and improving UX to be loved by users.

Our tech stack

• Language: Typescript
• Frontend Framework: Angular / Vue
• Backend Framework: NodeJs for backend services, Express for developing REST Apis, Typeorm for database interactions
• Cloud & Infrastructure: Terraform for infrastructure provisioning and deployment automation
• Databases: PostgreSQL for structured relational data
• Visualisation & Monitoring: Grafana for system telemetry, metrics, and performance monitoring
• Large Language Models: Integration with multiple LLM providers (OpenAI, AWS Bedrock, etc.) for retrieval-augmented and agentic applications, model-agnostic and vendor-flexible

Why you’ll love working here

• 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: we really enjoy our quiz nights, good music, karaoke, GeoGuessr or a good round of darts with some drinks.
• Compliance & security mindset: Build with peace of mind in a GDPR and ISO 27001-certified environment.

What you will get on top:

• Stay fit and healthy with your FoxBase Urban Sports Club membership
• Stay mobile and flexible with our free Jobticket
• Eat healthy with our daily lunch support of 7,50 €, no matter if you are in your home office or in our head quarter office in Düsseldorf
• Build great relationships with our quarterly team-events
• Enjoy free drinks and free your mind in our games corner, playing darts, Switch or good old chess.

How we work

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

The journey so far

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

Built a team culture that loves solving hard problems — with great people, strong ownership and good vibes.

The next chapter

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.