Software Engineer

About Databento

Databento operates as a cutting-edge market data platform engineered specifically for modern finance sectors.

Core Capabilities:

• We provide real-time and historical market data across futures, options, and equities through our unified API infrastructure.
• By managing the entire market data stack end to end, Databento merges the performance precision required by leading trading firms with a streamlined developer experience.

The Team

We are comprised of professionals boasting experience at elite quantitative trading firms including Two Sigma, Citadel Securities, Flow Traders, Tower Research, PDT Partners, and SIG.

About The Role

Databento is seeking a mid-level or senior individual contributor to join our core engineering team. This position combines ownership of the Java client library with hands-on development of performance-critical systems in C and C++.

• You will maintain a reliable, developer-friendly library while building infrastructure that processes large volumes of financial market data at extremely low latency.

Who We Are Looking For

This role is designed for an engineer who thrives on systems programming, performance optimization, and creating software solutions that other developers can seamlessly integrate into their applications. The position offers the opportunity to work with petabyte-scale datasets while optimizing codebases handling millions of messages per second at speeds up to 40+ gigabits.

Key Responsibilities

• Own and maintain the Java client library, ensuring it is robust, well-tested, and straightforward for external developers to integrate.
• Design, develop, and maintain high-performance server applications in C and C++.
• Build message parsers and feed handlers for direct market data feeds from trading venues.
• Optimize the codebase for high throughput with nanosecond-level latency measurements.
• Develop tools and libraries for processing and analyzing petabyte-scale datasets.
• Collaborate with systems teams to establish best practices for build processes, deployment strategies, and CI/CD pipelines.
• Implement monitoring solutions to improve application uptime and support smooth feature rollouts.

Prefired Background & Qualifications

• At least 5 years of full-time software engineering experience, preferably within a trading firm, technology company, or high-growth startup.
• Strong proficiency in both C/C++ and Java.
• Familiarity with open-source practices including release management, versioning, changelogs, issue triage, and backward compatibility.
• In-depth knowledge of systems programming, algorithms, data structures, multithreading, networked I/O, serialization, CPU architecture, kernels, and compilers.
• Experience working in multiprocess environments with debugging tools such as lldb or gdb.
• Strong communication skills and a reliable work ethic essential for remote workplace success.

Diversity & Inclusion

Databento, Inc. provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity or expression, veteran status, or genetics. We comply with applicable federal, state, and local nondiscrimination laws.