> Markdown version of [/jobs/ext/3096031-software-engineer-c-java](https://www.wearedevelopers.com/jobs/ext/3096031-software-engineer-c-java). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer (C++/Java)

- **Company:** Databento, Inc.
- **Location:** Seattle, WA, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Algorithmic Trading, C Sharp (Programming Language), C++ (Programming Language), Compilers, Continuous Integration, Microarchitecture, Serialization, Data Structures, Open Source Technology, Release Management, Software Engineering, System Programming, Management of Software Versions, Data Processing, Multithreading, Low Latency
- **Published:** September 26, 2026
- **Apply:** https://www.juju.com/job/16_89da007a2

## About the Role

* 5+ years of full-time software engineering experience, preferably at a trading firm, tech company, or high-growth startup.
 * Strong proficiency in both C/C++ and Java.
 * Experience with C# 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.

## Description

We're looking for a midlevel or senior IC to join our core engineering team. You'll be responsible for implementing and maintaining our Java client library, and also working alongside our core engineering team on the most performance-sensitive parts of our codebase.
Responsibilities

 * Own and maintain our Java 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/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.


## Related Videos

- [Just-in-time Compilation in JVM](https://www.wearedevelopers.com/videos/240-just-in-time-compilation-in-jvm)
- [Swapping Low Latency Data Storage Under High Load](https://www.wearedevelopers.com/videos/746-swapping-low-latency-data-storage-under-high-load)
- [Boosting OpenSearch Performance: gRPC Search in Action](https://www.wearedevelopers.com/videos/1964-boosting-opensearch-performance-grpc-search-in-action)
- [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering)
- [C++ in constrained environments](https://www.wearedevelopers.com/videos/441-c-in-constrained-environments)
- [Building a Compiler with C#](https://www.wearedevelopers.com/videos/116-building-a-compiler-with-c)

## Related Articles

- [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)
- [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)