Senior Bazel Tools Engineer - Scale CI & Monorepo Tooling

Datadog; Boston (MA); Hybrid; USD 235,000 - 316,000; Full time

Benefits offered by this job

RSUs

ESPP

Career development

Mentor program

Inclusion Talks

Global benefits

Job summary

Datadog’s Language Tools team enables ~1,500 developers to build, test, and package millions of lines in Go, Python, Java, Rust, and TypeScript within our backend monorepo. As a senior software engineer, you will own projects from start to finish, gaining firsthand understanding of needs and informing our roadmap.

The team embraces a hybrid workplace to support work‑life harmony. You’ll push for fast, reliable CI, contribute to the Bazel ecosystem, and mentor others as you scale our tooling for

Qualifications

• An expert in Bazel and/or one of the languages listed above.
• A well‑rounded engineer. You must broadly understand the various types of software projects that are built, tested, and packaged with our tools.
• Both careful and fearless. The changes we make impact the velocity of hundreds of engineers. They are risky but necessary.
• User‑focused. We help Datadog engineers to use the tools that we develop, and continuously improve their usability, so they don’t need our help the next time.
• Ideally, you have experience working with a large codebase.

Responsibilities

• Invent build, test and packaging tools that are simpler and more reliable to use.
• Push performance and cost efficiency at scale, raising cache hit rates and cutting CI times and compute spend across millions of targets.
• Treat CI like SREs treat prod, making sure our pipelines are green and fast.
• Prepare, run, and finish complex migrations.
• Contribute back to the Bazel ecosystem, upstreaming fixes and shaping features we depend on.

Skills

Go

Python

Java

Rust

TypeScript

Tools

Bazel

Job description

Datadog’s Language Tools team enables ~1,500 developers to build, test, and package millions of lines in Go, Python, Java, Rust, and TypeScript within our backend monorepo. As a senior software engineer, you will own projects from start to finish, gaining firsthand understanding of needs and informing our roadmap.

The team embraces a hybrid workplace to support work‑life harmony. You’ll push for fast, reliable CI, contribute to the Bazel ecosystem, and mentor others as you scale our tooling for