Software Engineer (Core Engine) - Remote

Overview

As a Software Engineer, Core Engine at Tenzir, you will work on the heart of our platform: the high-performance C++ execution engine that processes, transforms, and routes security telemetry at scale.

In Short

• Evolve and optimize the query execution engine for TQL pipelines
• 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
• Improve query optimization techniques (e.g. predicate pushdown, operator fusion, pipeline parallelization)
• Design storage and indexing strategies for efficient data retrieval and replay
• Profile and optimize performance across the full data path
• Contribute to and help shape our open-source core engine

Requirements

• 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)
• Performance engineering mindset with systematic profiling and optimization
• High quality standards, including testing, edge-case handling, and failure-mode thinking
• Professional fluency in English (written and spoken)
• Residency in an EU time zone with the right to work in the EU or an EU-adequate country

Benefits

• Work on real query execution, streaming processing, and performance optimization in production
• Build on cutting-edge columnar data technology used across the industry
• Contribute to a core engine with real users and an active community
• Your engine work directly affects customer-visible performance and scalability
• Direct collaboration with founders and engineers, no layers of abstraction
• Meaningful equity participation through our VSOP
• Base salary range of €60,000–€115,000 (depending on experience and location)
• Fully remote within EU time zones
• Direct employment in Germany; contractor model outside Germany
• Equipment provided for employees; quarterly team meetups and one annual company-wide retreat