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Software Engineer (C++/C#)

Databento· Engineering
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Hybrid (Remote)$150k - $250kfull-timePosted 3mo ago

About the role

Midlevel to senior IC role focused on maintaining the C# client library and contributing to high-performance C++ server components, with emphasis on low-latency, high-throughput market data processing and developer-friendly APIs.

Responsibilities

  • 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.

Qualifications

  • 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.

Skills

Required:C++C#API DesignMultithreadingNetworking / I/OPerformance Optimization

Benefits

  • health, dental, disability, and life insurance benefits
  • 401(k) matching for full-time employees
  • 100% remote work, with teammates around the globe and paid in local currency
Last updated Oct 14, 2026. Interested? Apply on the company site.
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About Databento

Market data APIs and solutions for every firm

Databento provides real-time and historical market data APIs. Access data for equities, futures, options, and more with one integration. Sign up for $125 in free credits.

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