Senior Library Software Engineer - Rust

Datadog's APM team is building a world-class tracing product that helps developers see inside complex distributed systems. We're building rock solid libraries to trace requests as they flow across servers, databases, caches and micro-services in all the major languages. We're investing heavily in systems to process a massive firehose of data - fast data pipelines, scalable storage systems and a slick UI to tie it all together. Our engineering culture values pragmatism, honesty, and simplicity to solve hard problems the right way. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. The APM Common Components team develops reusable components in Rust that replace duplicate implementations across several of the languages APM and other product teams support. By implementing core functionality once and sharing it, we accelerate feature delivery, increase developer efficiency, and minimize performance impact on our customer applications. We’re looking for an expert Rust engineer who is passionate about quality, performance and interoperability to help get our open-source APM libraries to the next level, and 

At Datadog, we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them.

What You’ll Do: 

• Work with our engineering teams and open-source maintainers to build shared capabilities that will be used in Datadog’s APM SDKs.


• Help shape the cross-language interoperability stack: from high-level FFI API design to data exchange and memory management patterns, ensuring consistent, high-performance integration of shared Rust components across multiple languages supported by Datadog’s APM product.


• Use profilers, debuggers, and other tools to optimize performance critical code paths to minimize overhead in production APM environments.


• Contribute to building a vibrant Rust community within Datadog.

Who You Are: 

• You have professional experience writing and deploying Rust code in production.


• You have significant experience building and maintaining native libraries (C/C++/Rust) that interoperate with other languages.


• You’re attentive to details and can build software with very low defect rates. You appreciate simplicity as a tool to accomplish this.


• Hands on experience in software design and leading refactoring initiatives to improve the architecture of complex software libraries.


• You’re interested in an environment that values shipping early and iterating, and keeping processes to the minimum needed to ensure safety. You enjoy owning projects and can keep moving forward despite the occasional ambiguity or blocker.

Datadog values people from all walks of life. We understand not everyone will meet all the above qualifications on day one. That's okay. If you’re passionate about technology and want to grow your skills, we encourage you to apply. 

Benefits and Growth: 

• New hire stock equity (RSUs) and employee stock purchase plan (ESPP)


• Continuous professional development, product training, and career pathing


• Intradepartmental mentor and buddy program for in-house networking


• An inclusive company culture, ability to join our Community Guilds (Datadog employee resource groups)


• Access to Inclusion Talks, our Internal panel discussions


• Free, global mental health benefits for employees and dependents age 6+


• Competitive global benefits

Benefits and Growth listed above may vary based on the country of your employment and the nature of your employment with Datadog.