AI Engineer

• Design & build AI solutions that automate and enhance real business processes using LLMs and other ML models.
• Translate problems into agents: collaborate with cross-functional teams and clients to spot opportunities and turn them into AI-driven solutions.
• Own ML pipelines: build and maintain scalable ML/LLM pipelines and workflows, using frameworks like LangChain, LangGraph or similar.
• Work deeply with LLMs: fine-tune, adapt, and orchestrate Large Language Models to fit specific client needs and use cases.
• Implement generative AI use cases: from GPT-style assistants to domain-specific agents using models like LLaMA and others.
• Optimize relentlessly: improve performance, scalability, latency, and cost of existing generative AI models and pipelines.
• Make the complex simple: write clear documentation and explain solutions to both technical and non-technical stakeholders.
• Multiply your impact: share best practices, mentor teammates, and help raise our collective level on generative AI.

Do you have a Master's degree?, * Master's degree in Computer Science, Artificial Intelligence or a related field (PhD is a plus, not a must).

• Solid understanding of Generative AI, machine learning algorithms, and deep learning (transformer-based models).
• Experience with data preprocessing, feature engineering, and model evaluation.
• Strong Python skills and hands-on experience with ML frameworks such as TensorFlow, PyTorch, or Keras.
• Experience with RAG (Retrieval-Augmented Generation) workflows, tools, and platforms.
• Good grasp of data structures, algorithms, and software engineering principles.
• Comfortable working with cloud platforms (Azure, AWS, …) and modern development practices.
• Strong written and spoken English.

Nice to have

• Experience with LangChain, LangGraph or similar LLM orchestration frameworks.
• Familiarity with MLOps practices and tools (model deployment, monitoring, CI/CD for ML).
• Experience working in agile environments and managing software projects.
• Previous experience in a small, high-impact company similar to Rollo.

How you work

• You enjoy owning problems end-to-end: understanding the business context, choosing the right approach, and shipping.
• You think pragmatically: you care about robustness, security and ROI, not just cool demos.
• You communicate clearly and can make complex ideas understandable for different audiences.
• You collaborate well in a small team, give and receive feedback openly, and care about collective success.
• You're curious, keep up with the fast-moving AI landscape, and like to experiment and share what you learn.

• Hybrid flexibility: Work from our Antwerp office combined with remote days; organize your focus and collaboration time in a way that works.
• Growth & learning: Mentorship from experienced engineers and strategists, exposure to diverse industries, and room to experiment with new tools and approaches.
• Culture that clicks: Team-building, hackathons, and a straightforward "say what you mean" culture. We take our craft seriously, not ourselves.
• Competitive compensation: Salary and benefits that respect your talent and impact.
• Autonomy with accountability: Real ownership over your projects. You get the freedom to choose how, as long as the outcome is solid and on time.

How we hire

We keep our hiring process focused and human:

1. Intro call (30 min): mutual fit and Q&A about the role and Rollo.

2. Technical / case exercise: a realistic challenge to see how you think and build (time-boxed).

3. Team & culture conversation: meet future teammates and see how we work together.

We aim to move quickly and give you clear feedback at each step., Send us:

• Your CV or LinkedIn profile
• A short note or cover letter on the kind of AI problems you enjoy solving

to hr@rollo.ai with subject line "I want to be a Rollo AI Engineer".

Rollo.ai is committed to diversity and inclusion. Different backgrounds, perspectives and experiences make better teams and better AI. If you're excited about the role but not sure you tick every box, we still encourage you to get in touch.

Job Types: Full-time, Permanent contract

Pay: €50.000,00 - €80.000,00 per year

At Rollo.ai, AI is not a slide in a pitch deck, it runs in production and removes real work from real people's plates. As an AI Engineer, you design, build, and ship AI agents that automate complex workflows, surface better decisions, and unlock measurable ROI for our B2B clients. You'll work end-to-end: from understanding business problems to deploying, monitoring, and improving agents that actually get used. About Rollo.ai Rollo.ai is Antwerp's no-nonsense AI agency. We build tailored AI agents that bulldoze busywork so teams can focus on what really matters. Our crew is a tight-knit mix of engineers and strategists who turn ambitious ideas into reliable systems. We're obsessed with impact, allergic to fluff, and believe the best tech is built by people who are curious, honest, and not afraid to push boundaries.