High-Performance C/C++ Software Developer

6 days ago


California, Missouri, United States Databento Full time

Databento is a fast-growing startup specializing in building cutting-edge APIs for financial data. As a Series A company, we've secured nearly $30M in funding and experienced remarkable revenue growth of over 958% year-over-year with a team of fewer than 30 employees.

We're seeking a junior software engineer to join our core engineering team, responsible for developing high-performance server applications in C/C++ and Rust. You'll work with vast amounts of data (almost 20 PB) across thousands of bare metal CPU cores.

We offer comprehensive benefits, including health, dental, disability, and life insurance, as well as 401(k) matching and visa sponsorships for full-time employees. We accommodate 100% remote work, with teammates located worldwide and paid in their local currency.

Key Responsibilities
  • Design, develop, and maintain high-performance server applications in C/C++ and Rust.
  • Implement message parsers and feed handlers for direct market data feeds from trading venues.
  • Optimize the existing codebase for high throughput (millions of messages per second, up to 40+ gigabit) and low latency (measured in nanoseconds).
  • Develop 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
  • Prior internship experience or 1 to 3 years of full-time software engineering experience, preferably at a trading firm, tech company, or high-growth startup.
  • Strong proficiency in C/C++ or Rust.
  • 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.

Estimated Salary: $120,000 - $180,000 per annum

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