Software Engineer - Vector Index (Core Database)

About Neo4jNeo4j is the leader in Graph Database & Analytics, helping organizations uncover hidden patterns and relationships across billions of data connections deeply, easily, and quickly. Customers use Neo4j to gain a deeper understanding of their business and reveal new ways of solving their most pressing problems. Over 84% of Fortune 100 companies use Neo4j, along with a vibrant community of 250,000+ developers, data scientists, and architects across the globe.At Neo4j, we’re proud to build the technology that powers breakthrough solutions for our customers. These solutions have helped NASA get to Mars two years earlier, broke the Panama Papers for the ICIJ, and are helping Transport for London to cut congestion by 10% and save $750M a year. Some of our other notable customers include Intuit, Lockheed Martin, Novartis, UBS, and Walmart.Neo4j experienced rapid growth this year as organizations looking to deploy generative AI (GenAI) recognized graph databases as essential for improving it’s accuracy, transparency, and explainability. Growth was further fueled by enterprise demand for Neo4j’s cloud offering and partnerships with leading cloud hyperscalers and ecosystem leaders. Learn more at neo4j.com and follow us on LinkedIn.Our VisionAt 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 RoleDo 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 DoBuild and ship features related to index, constraint and schemaEvolve vector search capabilities to support graph, similarity search and Gen AI use casesDesign and optimise the indexing subsystem to support complex graph queries and a variety of workloadsWrite high-quality, testable, and efficient codeWork with real-world scale and performance challengesWork 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 prioritizationIntegrate research and technologies into the database core“Do what you want days” to work on your own product enhancements and integrationsYou'll Thrive In This Role IfYou have an interest in how indexes in databases workYou are proficient in algorithm development in general.You are proficient in Java or a C-style programming languageYou are humble. Being able to discuss ideas and challenge each other to build better solutions togetherYou have good communication skills and a sense of humour!You may also have experience and interest in the following:LuceneMulti-threaded systemsPerformance profiling and optimisationDatabase management systemsLarge codebases