AI Engineer - Knowledge Graphs, Ontologies, AI Agents

A-GOS is a VC-backed AI startup building an intelligent procurement and catering platform for the maritime industry.

We are now looking for an AI Engineer with practical experience in knowledge graphs, ontologies, and AI agents.
 

The Challenge

One of our main tasks is generating optimal weekly menus for vessel crews.

The system must consider:

• Ingredients available on board
• Quantities, prices, and expiration dates
• Crew nationalities and dietary, religious and cultural restrictions
• Consumption and nutritional norms
• Budget and food waste
• Recipe compatibility and menu diversity

Today, much of this logic is handled through Google OR-Tools. However, even with more than 500 recipes in our database, strict recipe structures often make it impossible to generate an optimal menu.

We want to make the system more intelligent.

It should be able to create valid recipe variations by replacing ingredients only when the substitution truly makes sense. The system should understand the ingredient’s role, taste, texture, cooking method, cuisine, nutrition, restrictions, and compatibility with other ingredients.
 

What You Will Work On

• Building a knowledge graph for ingredients, recipes, cuisines, restrictions, and substitution rules
• Designing the domain ontology and semantic model
• Developing intelligent ingredient substitution logic
• Building AI agents that reason over recipes, inventory, and crew requirements
• Integrating the knowledge layer with Google OR-Tools and our existing platform
• Creating explainable logic for generated recipes and menu decisions

What We Expect

• Practical experience with knowledge graphs or ontology design
• Experience developing AI agents or LLM-based systems
• Strong Python skills
• Understanding of semantic modelling, structured reasoning, and retrieval
• Ability to transform complex business rules into a scalable architecture
• Strong ownership and product thinking

What matters is that you have built a real system using knowledge graphs or ontologies and can explain your personal contribution.

Experience with Neo4j, RDF, OWL, SPARQL, GraphRAG, LangGraph, LangChain, LlamaIndex, or similar technologies would be a plus.

Why A-GOS

• Early-stage VC-backed startup
• Real and technically challenging AI product
• Direct influence on product and architecture
• Remote work and flexible schedule
• Small team with minimal bureaucracy
• Potential equity based on long-term contribution

How to Apply

Please briefly describe a real project where you worked with knowledge graphs, ontologies, RAG, semantic models, or AI agents.

Tell us what problem you solved, which technologies you used, what you personally built, and how it was integrated into the final system.