Software Engineer - Vector Index

About Neo4j:

Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise-ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy-to-deploy graph capabilities across any environment and data source; and an unmatched ecosystem trusted by 84 of the Fortune 100 and supported by the world’s largest graph community. Intelligence that works. Results that matter.

Built to work everywhere and integrate with everything across every cloud for dynamic, personalized, and autonomous AI systems. We deliver quicker results, contextual knowledge, and solutions that impact customers and employees across the business.

Our Vision:

At Neo4j, we have always strived to help the world make sense of data.

As business, society and knowledge become increasingly connected, our technology promotes innovation by helping organizations to find and understand data relationships. We created, drive and lead the graph database category, and we’re disrupting how organizations leverage their data to innovate and stay competitive.

The Role:

Do you like to solve advanced and complex computer science problems? We are looking for a backend engineer with a special interest in database indexes and algorithm development who likes to solve technical challenges and deliver high-quality code to join our newly formed Index team! You will be part of a brilliant, energetic, and fun team of engineers working on building core functionality for the graph database.

You will be part of an international team based in Malmö, Sweden, and London, UK.

What you will do:

• Build and ship features related to index, constraint and schema
• Evolve vector search capabilities to support graph, similarity search and GenAI use cases
• Design and optimize the indexing subsystem to support complex graph queries and a variety of workloads
• Write high-quality, testable, and efficient Java code
• Work with real-world scale and performance challenges
• Work together with our product managers to help set the roadmap for the work in the index area going forward.
• Promote new ideas, take an active part in feature discussions and roadmap prioritization
• Integrate research and technologies into the database core
• “Do what you want weeks” to work on your own product enhancements and integrations

You'll thrive in this role if:

• You have an interest in how indexes in databases work
• You are proficient in algorithm development in general.
• You are proficient in Java or a C-style programming language.
• You are humble. Being able to discuss ideas and challenge each other to build better solutions together
• You have good communication skills and a sense of humor!

You may also have experience a