Software Engineer (C++/C#)

Databento•Boston, MA

1d•Remote

About The Position

Databento is a startup that builds modern APIs to get financial data. As a Series A startup, we've raised $37.8M to date, and grown our revenues by over 958% Y/Y in the past year—all with a team of fewer than 30 employees. We're looking for a junior software engineer (on parity with L3 to L4 at a large tech firm) to join our core engineering team. Our team is responsible for all things C/C++ and Rust, and the most performance-sensitive parts of our codebase. You'll be working with nearly 30 PB of data, with thousands of bare metal CPU cores at your disposal.

Requirements

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.
A bachelor's degree in computer science or a related technical subject.

Nice To Haves

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.

Responsibilities

Design, develop, and maintain high-performance server applications in C/C++ and Rust.
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.