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Neo4j is seeking a Senior Software Engineer to join the Core Networking Engineering Team, working on the graph intelligence platform trusted by 84 of the Fortune 100. In this role, you will primarily develop Neo4j's network server modules, with scope to work on drivers, APIs, and the proprietary Bolt binary protocol. You'll leverage deep expertise in network concepts and binary protocols to influence the strategic direction of connectivity within Neo4j, collaborating with product managers to design new features and protocol improvements. You will implement these designs in the server codebase while also engaging with the community through technical writing, training, and events.
The ideal candidate brings 5+ years of practical experience with Java language, platform, and ecosystem. You should have hands-on experience or strong interest in network development (binary protocols like Bolt, MongoDB Wire Protocol), network packet analysis (e.g., Wireshark), distributed system design, API design, and asynchronous programming. Experience with Netty, database management systems, graph databases, Docker, and system-oriented languages (C, C++, Rust, Go) is valued. You'll be expected to mentor junior engineers, provide technical leadership on protocol design decisions, and maintain high code quality standards.
Neo4j is one of the fastest-scaling database companies, recently surpassing $200M ARR and raising $325M in Series F funding (the largest database funding round in history). The company is valued at over $2B and backed by world-class investors including Google Ventures and Eurazeo. Neo4j operates with a Silicon Valley mindset and Swedish values, fostering collaboration, inclusivity, and customer success. The role offers the opportunity to shape the future of data and analytics at a proven, high-growth company with massive market adoption.
