Senior Library Software Engineer - Rust

Datadog; Town of Italy, Germany (NY, OH); Remote; USD 130,000 - 160,000; Full time

Job summary

A leading technology company in New York is seeking an expert Rust engineer passionate about quality and performance. The role involves building components for distributed systems and enhancing APM libraries. Ideal candidates have professional Rust experience, a focus on interoperability, and a drive for optimization and community engagement.

Benefits

New hire stock equity (RSUs)

Continuous professional development

Mentor and buddy program

Inclusive company culture

Global mental health benefits

Qualifications

• Professional experience writing and deploying Rust code in production.
• Experience building and maintaining native libraries that interoperate with languages like C/C++.
• Attention to detail with low defect rates in software.

Responsibilities

• Build shared capabilities used in Datadog’s APM SDKs.
• Shape the cross-language interoperability stack.
• Optimize performance critical code paths.

Skills

Rust programming

Cross-language interoperability

Software design

Optimization techniques

Job description

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.

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.

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.

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+

Datadog is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and other characteristics protected by law.