As a Software Engineer, Core Engine at Tenzir, you work on the heart of our platform: the high-performance C++ execution engine that processes, transforms, and routes security telemetry at scale.
You design and evolve query execution and streaming data processing for TQL (Tenzir Query Language), tackling problems in performance engineering, query optimization, and systems design. Your work directly determines how efficiently customers can process millions of security events in production.
You collaborate closely with our founder and a small, highly technical engineering team. This role is for engineers who enjoy working close to the metal and want their systems work to have real-world impact.
Improve streaming data processing for high-throughput, low-latency workloads
Work with Apache Arrow for columnar in-memory data representation and zero-copy processing
Implement new operators for data transformation, enrichment, and routing
Design storage and indexing strategies for efficient data retrieval and replay
Profile and optimize performance across the full data path
Significant systems programming experience in modern C++ (C++23/26)
Experience building or working on data-intensive systems (databases, query engines, streaming systems, or similar)
Strong computer science fundamentals (algorithms, data structures, memory management)
Professional fluency in English (written and spoken)
Modern C++ (23/26); familiarity with Python for tooling
Data processing: Memory management, concurrency, I/O optimization, Linux internals
Open-source contributions to data infrastructure projects
Exposure to security data formats (CEF, LEEF, syslog) or SIEM systems
TypeScript or platform code)
Build on cutting-edge columnar data technology used across the industry
Remote work: Fully remote within EU time zones
Tenzir is revolutionizing how enterprises address security and data infrastructure challenges with its innovative, AI-powered data pipeline, empowering builders and cyber defenders to shape, enrich, and route their security data. Our mission is to provide the critical data infrastructure that enables organizations to effectively manage and leverage their security data, protecting them from evolving threats.
Our customers rely on us for their mission-critical data infrastructure, and we are seeking an exceptional Account Executive to help us expand our growth beyond the current founder-led sales model.
Based in Hamburg with a fully remote-friendly culture, we believe in finding the best talent regardless of location across European timezones.