Databento - Software Engineer (C++/C#)

• Own and maintain our C# client library, ensuring it is robust, well-tested, and easy for external users to integrate with. • Design, develop, and maintain high-performance server applications in C++. • Write message parsers and feed handlers for direct market data feeds from trading venues. • Optimize existing codebase for high throughput (millions of messages per second, up to 40+ gigabits) and low latency (measured in nanoseconds). • Implement tools and libraries for petabyte-scale data processing and analysis. • Collaborate with the systems team to implement best practices for build, deployment, CI/CD. • Implement monitoring and improve application uptime. • Ensure smooth feature rollouts and updates. • Preferred background • 5+ years of full-time software engineering experience, preferably at a trading firm, tech company, or high-growth startup. • Strong proficiency in both C++ and C#. • Experience with Java is a plus. • Experience designing APIs with a strong focus on intuitive, developer-friendly interfaces. • Familiarity with open source best practices, including release management, versioning, changelogs, issue triage, and backwards compatibility. • Knowledge of systems programming, algorithms, data structures, multithreading, networked I/O, serialization, CPU architecture, kernel, and compilers. • Experience working with multiprocess environments. • Comfortable with lldb/gdb. • Good communication skills and work ethic for a remote workplace. • An interest in low-level optimization and performance engineering. • An interest in financial data or algorithmic trading.