Requirements:

You’ve written performant, production-grade C++ (C++14 or later) in complex systems.
You’re confident with multithreading, memory management, and debugging low-level concurrency bugs.
You’re comfortable owning critical paths in systems that need to be fast, observable, and safe under load.
You communicate clearly and thrive in remote, distributed, or async-first teams.

Nice to Haves:

You’ve worked on or contributed to open-source reverse proxy projects.
You’ve built or maintained developer-facing libraries or SDKs.
You have experience working on infrastructure components such as proxies, load balancers, or gateway layers.
You're familiar with system-level observability tools (perf, eBPF, systemtap, etc.).
You’ve debugged performance bottlenecks in HTTP, TLS, or TCP/IP stacks.
You have exposure to distributed systems and service meshes at scale.

Develop and maintain high-performance C++ libraries that integrate with reverse proxies to enable observability and diagnostics.
Design and implement runtime instrumentation for latency-sensitive and multi-threaded systems.
Contribute to our adoption and integration of OpenTelemetry standards across Datadog’s C++ observability libraries.
Own the performance, safety, and correctness of systems-level code running in production.
Collaborate with open-source maintainers and engineering teams to improve tooling and ecosystem support.
Investigate deep infrastructure bugs across boundaries (C++, proxies, OS, network stack).
Contribute to shaping our telemetry standards and cross-platform instrumentation strategies.

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